Check DNS, Urls + Redirects, Certificates and Content of your Website


 

 

X

 

DNS-problem - authoritative Nameserver refused, not defined or timeout

 

Checked:
15.04.2025 13:03:07

 

Older results

 

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
c-plusplus.nl
A
129.125.14.80
Groningen/The Netherlands (NL) - Surf B.V.
Hostname: oosix.icce.rug.nl
yes
1
0

AAAA
2a01:1b0:7999:402::1150
Groningen/The Netherlands (NL) - Duocast Groningen

yes


www.c-plusplus.nl
A
129.125.14.80
Groningen/The Netherlands (NL) - Surf B.V.
Hostname: oosix.icce.rug.nl
yes
1
0

AAAA
2a01:1b0:7999:402::1150
Groningen/The Netherlands (NL) - Duocast Groningen

yes


*.c-plusplus.nl
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


 

2. DNSSEC

Zone (*)DNSSEC - Informations


Zone: (root)

(root)
1 DS RR published






DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=






Status: Valid because published






3 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 38696, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 53148, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 02.05.2025, 00:00:00 +, Signature-Inception: 11.04.2025, 00:00:00 +, KeyTag 20326, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: nl

nl
1 DS RR in the parent zone found






DS with Algorithm 13, KeyTag 17153, DigestType 2 and Digest xd/dyR51MlYqNfPCzTCCOJS+CPIBAfGr9FyKuXOfP0k=






1 RRSIG RR to validate DS RR found






RRSIG-Owner nl., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 28.04.2025, 05:00:00 +, Signature-Inception: 15.04.2025, 04:00:00 +, KeyTag 53148, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 53148 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 13, KeyTag 7156, Flags 256






Public Key with Algorithm 13, KeyTag 17153, Flags 257 (SEP = Secure Entry Point)






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner nl., Algorithm: 13, 1 Labels, original TTL: 3600 sec, Signature-expiration: 28.04.2025, 00:39:55 +, Signature-Inception: 13.04.2025, 23:07:25 +, KeyTag 17153, Signer-Name: nl






Status: Good - Algorithmus 13 and DNSKEY with KeyTag 17153 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 17153, DigestType 2 and Digest "xd/dyR51MlYqNfPCzTCCOJS+CPIBAfGr9FyKuXOfP0k=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: c-plusplus.nl

c-plusplus.nl
1 DS RR in the parent zone found






DS with Algorithm 13, KeyTag 58966, DigestType 2 and Digest vWiQBj5wAdXrnvRfaUbT3CoQZdOynL4OHBzy4jVksIk=






1 RRSIG RR to validate DS RR found






RRSIG-Owner c-plusplus.nl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 01:45:27 +, Signature-Inception: 13.04.2025, 09:37:22 +, KeyTag 7156, Signer-Name: nl






Status: Good - Algorithmus 13 and DNSKEY with KeyTag 7156 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 13, KeyTag 56426, Flags 256






Public Key with Algorithm 13, KeyTag 58966, Flags 257 (SEP = Secure Entry Point)






2 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner c-plusplus.nl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






RRSIG-Owner c-plusplus.nl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 58966, Signer-Name: c-plusplus.nl






Status: Good - Algorithmus 13 and DNSKEY with KeyTag 56426 used to validate the DNSKEY RRSet






Status: Good - Algorithmus 13 and DNSKEY with KeyTag 58966 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 58966, DigestType 2 and Digest "vWiQBj5wAdXrnvRfaUbT3CoQZdOynL4OHBzy4jVksIk=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone






RRSIG Type 1 validates the A - Result: 129.125.14.80
Validated: RRSIG-Owner c-plusplus.nl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






RRSIG Type 16 validates the TXT - Result: v=spf1 mx a include:_spf.mx10.nl -all
Validated: RRSIG-Owner c-plusplus.nl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






RRSIG Type 28 validates the AAAA - Result: 2A01:01B0:7999:0402:0000:0000:0000:1150
Validated: RRSIG-Owner c-plusplus.nl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "tm684ki7ve9dii1gvbpumnb14r0flul2" equal the hashed NSEC3-owner "tm684ki7ve9dii1gvbpumnb14r0flul2" and the hashed NextOwner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9". So the zone confirmes the not-existence of that CNAME RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, NS, SOA, MX, TXT, AAAA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner tm684ki7ve9dii1gvbpumnb14r0flul2.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NoData-Proof required and found.






TLSA-Query (_443._tcp.c-plusplus.nl) sends a valid NSEC3 RR as result with the hashed owner name "tm684ki7ve9dii1gvbpumnb14r0flul2" (unhashed: c-plusplus.nl). So that's the Closest Encloser of the query name.
Bitmap: A, NS, SOA, MX, TXT, AAAA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner tm684ki7ve9dii1gvbpumnb14r0flul2.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NXDomain-Proof required and found.






TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Next Closer Name "kb6ccgfu4tsub81j4mmu2ktqjkea048j" (unhashed: _tcp.c-plusplus.nl) with the owner "j368pqhviglomm35o51p03sm6gjvarpj" and the NextOwner "omcdqv2l3rsi6uij6kus0e2ma5m5sj26". So that NSEC3 confirms the not-existence of the Next Closer Name.
Bitmap: TXT, RRSIG Validated: RRSIG-Owner j368pqhviglomm35o51p03sm6gjvarpj.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NXDomain-Proof required and found.






TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Wildcard expansion of the ClosestEncloser "1d8l6983482u9qne1nkf9e6kf457b92v" (unhashed: *.c-plusplus.nl) with the owner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" and the NextOwner "j368pqhviglomm35o51p03sm6gjvarpj". So that NSEC3 confirms the not-existence of the Wildcard expansion. TLSA-Query (_443._tcp.c-plusplus.nl) sends a valid NSEC3 RR as result with the owner name "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" greater the NextOwner-Name "j368pqhviglomm35o51p03sm6gjvarpj", so the NSEC3 covers the end of the zone. The hashed query name "3mg8dbav9umisupht3o6976h78tqtr5v" comes before the hashed NextOwner, so the zone confirmes the not-existence of that TLSA RR.
Bitmap: A, AAAA, RRSIG Validated: RRSIG-Owner up7q5mok57lfp0fm21s2g3tu5jkpkfs9.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NXDomain-Proof required and found.






CAA-Query sends a valid NSEC3 RR as result with the hashed query name "tm684ki7ve9dii1gvbpumnb14r0flul2" equal the hashed NSEC3-owner "tm684ki7ve9dii1gvbpumnb14r0flul2" and the hashed NextOwner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9". So the zone confirmes the not-existence of that CAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, NS, SOA, MX, TXT, AAAA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner tm684ki7ve9dii1gvbpumnb14r0flul2.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NoData-Proof required and found.



Zone: www.c-plusplus.nl

www.c-plusplus.nl
0 DS RR in the parent zone found






RRSIG Type 1 validates the A - Result: 129.125.14.80
Validated: RRSIG-Owner www.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






RRSIG Type 28 validates the AAAA - Result: 2A01:01B0:7999:0402:0000:0000:0000:1150
Validated: RRSIG-Owner www.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" equal the hashed NSEC3-owner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" and the hashed NextOwner "j368pqhviglomm35o51p03sm6gjvarpj". So the zone confirmes the not-existence of that CNAME RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, AAAA, RRSIG Validated: RRSIG-Owner up7q5mok57lfp0fm21s2g3tu5jkpkfs9.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NoData-Proof required and found.






TXT-Query sends a valid NSEC3 RR as result with the hashed query name "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" equal the hashed NSEC3-owner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" and the hashed NextOwner "j368pqhviglomm35o51p03sm6gjvarpj". So the zone confirmes the not-existence of that TXT RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, AAAA, RRSIG Validated: RRSIG-Owner up7q5mok57lfp0fm21s2g3tu5jkpkfs9.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NoData-Proof required and found.






TLSA-Query (_443._tcp.www.c-plusplus.nl) sends a valid NSEC3 RR as result with the hashed owner name "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" (unhashed: www.c-plusplus.nl). So that's the Closest Encloser of the query name. TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Next Closer Name "0v4iv4tt8sp9sj0fs99iemufbl5bp9u2" (unhashed: _tcp.www.c-plusplus.nl) with the owner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" and the NextOwner "j368pqhviglomm35o51p03sm6gjvarpj". So that NSEC3 confirms the not-existence of the Next Closer Name. TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Wildcard expansion of the ClosestEncloser "3nripgbleo0pjtmrgodp0r0fsbpavr5r" (unhashed: *.www.c-plusplus.nl) with the owner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" and the NextOwner "j368pqhviglomm35o51p03sm6gjvarpj". So that NSEC3 confirms the not-existence of the Wildcard expansion. TLSA-Query (_443._tcp.www.c-plusplus.nl) sends a valid NSEC3 RR as result with the owner name "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" greater the NextOwner-Name "j368pqhviglomm35o51p03sm6gjvarpj", so the NSEC3 covers the end of the zone. The hashed query name "8r8h57sghh4ndge4j9gtjqhjn32tdhfs" comes before the hashed NextOwner, so the zone confirmes the not-existence of that TLSA RR.
Bitmap: A, AAAA, RRSIG Validated: RRSIG-Owner up7q5mok57lfp0fm21s2g3tu5jkpkfs9.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NXDomain-Proof required and found.






CAA-Query sends a valid NSEC3 RR as result with the hashed query name "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" equal the hashed NSEC3-owner "up7q5mok57lfp0fm21s2g3tu5jkpkfs9" and the hashed NextOwner "j368pqhviglomm35o51p03sm6gjvarpj". So the zone confirmes the not-existence of that CAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, AAAA, RRSIG Validated: RRSIG-Owner up7q5mok57lfp0fm21s2g3tu5jkpkfs9.c-plusplus.nl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 27.04.2025, 00:31:00 +, Signature-Inception: 11.04.2025, 00:31:00 +, KeyTag 56426, Signer-Name: c-plusplus.nl






Status: Good. NoData-Proof required and found.

 

3. Name Servers

DomainNameserverNS-IP
www.c-plusplus.nl
  ns10.mx10.nl

c-plusplus.nl
  ns10.mx10.nl
89.188.15.148
Amsterdam/North Holland/The Netherlands (NL) - Duocast - Eemshaven


 
2a01:1b0:7999:402::1148
Groningen/The Netherlands (NL) - Duocast Groningen


  ns20.mx10.eu
83.96.201.123
Rotterdam/South Holland/The Netherlands (NL) - XL Network OS2


 
2a02:348:5e6:1::391f
Eindhoven/North Brabant/The Netherlands (NL) - Signet B.V


  ns20.mx10.nl
83.96.201.123
Rotterdam/South Holland/The Netherlands (NL) - XL Network OS2


T 
2a02:348:5e6:1::391f
Eindhoven/North Brabant/The Netherlands (NL) - Signet B.V

nl
  ns1.dns.nl / eqx-fr-ns02-50148


  ns3.dns.nl / tld-all-ffm1@53024


T  ns4.dns.nl / FRA2

 

4. SOA-Entries


Domain:nl
Zone-Name:nl
Primary:ns1.dns.nl
Mail:dns.sidn.nl
Serial:2025041516
Refresh:3600
Retry:600
Expire:2419200
TTL:600
num Entries:3


Domain:c-plusplus.nl
Zone-Name:c-plusplus.nl
Primary:ns10.mx10.nl
Mail:beheer.mx10.nl
Serial:2025041102
Refresh:7200
Retry:540
Expire:604800
TTL:3600
num Entries:6


Domain:www.c-plusplus.nl
Zone-Name:c-plusplus.nl
Primary:ns10.mx10.nl
Mail:beheer.mx10.nl
Serial:2025041102
Refresh:7200
Retry:540
Expire:604800
TTL:3600
num Entries:1


5. Screenshots

Startaddress: https://c-plusplus.nl/, address used: https://c-plusplus.nl/, Screenshot created 2025-04-15 13:17:06 +00:0 url is insecure, certificate invalid

 

Mobil (412px x 732px)

 

1043 milliseconds

 

Screenshot mobile - https://c-plusplus.nl/
Mobil + Landscape (732px x 412px)

 

1052 milliseconds

 

Screenshot mobile landscape - https://c-plusplus.nl/
Screen (1280px x 1680px)

 

1110 milliseconds

 

Screenshot Desktop - https://c-plusplus.nl/

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412732
content Size412732

 

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://c-plusplus.nl/
129.125.14.80 gzip used - 155 / 192 - 19.27 %
200

Html is minified: 162.71 %
0.070
H
Date: Tue, 15 Apr 2025 11:03:47 GMT
Server: Apache
ETag: "c0-632ccfade91ec-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Tue, 15 Apr 2025 08:30:23 GMT
Content-Encoding: gzip
Content-Length: 155
Content-Type: text/html

• http://c-plusplus.nl/
2a01:1b0:7999:402::1150 gzip used - 368 / 632 - 41.77 %
200

Html is minified: 137.39 %
0.047
H
Date: Tue, 15 Apr 2025 11:03:48 GMT
Server: Apache
X-Content-Type-Options: nosniff
Upgrade: h2,h2c
Connection: Upgrade
ETag: "278-5af92a5168555-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Fri, 18 Sep 2020 08:54:13 GMT
Content-Encoding: gzip
Content-Length: 368
Content-Type: text/html

• http://www.c-plusplus.nl/
129.125.14.80 gzip used - 155 / 192 - 19.27 %
200

Html is minified: 162.71 %
0.034
H
Date: Tue, 15 Apr 2025 11:03:48 GMT
Server: Apache
ETag: "c0-632ccfade91ec-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Tue, 15 Apr 2025 08:30:23 GMT
Content-Encoding: gzip
Content-Length: 155
Content-Type: text/html

• http://www.c-plusplus.nl/
2a01:1b0:7999:402::1150 gzip used - 368 / 632 - 41.77 %
200

Html is minified: 137.39 %
0.027
H
Date: Tue, 15 Apr 2025 11:03:48 GMT
Server: Apache
X-Content-Type-Options: nosniff
ETag: "278-5af92a5168555-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Fri, 18 Sep 2020 08:54:13 GMT
Content-Encoding: gzip
Content-Length: 368
Content-Type: text/html

• https://c-plusplus.nl/
129.125.14.80 gzip used - 1905 / 5314 - 64.15 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 130.21 %
Other inline scripts (∑/total): 0/0
2.654
N
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 15 Apr 2025 11:03:48 GMT
Server: Apache
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 1905
Content-Type: text/html

• https://c-plusplus.nl/
2a01:1b0:7999:402::1150 gzip used - 368 / 632 - 41.77 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 137.39 %
Other inline scripts (∑/total): 0/0
3.230
N
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 15 Apr 2025 11:03:52 GMT
Server: Apache
X-Content-Type-Options: nosniff
Upgrade: h2
Connection: Upgrade
ETag: "278-5af92a5168555-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Fri, 18 Sep 2020 08:54:13 GMT
Content-Encoding: gzip
Content-Length: 368
Content-Type: text/html

• https://www.c-plusplus.nl/
129.125.14.80 gzip used - 1905 / 5314 - 64.15 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 130.21 %
Other inline scripts (∑/total): 0/0
2.443
N
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 15 Apr 2025 11:03:57 GMT
Server: Apache
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 1905
Content-Type: text/html

• https://www.c-plusplus.nl/
2a01:1b0:7999:402::1150 gzip used - 368 / 632 - 41.77 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 137.39 %
Other inline scripts (∑/total): 0/0
3.250
N
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 15 Apr 2025 11:04:01 GMT
Server: Apache
X-Content-Type-Options: nosniff
Upgrade: h2
Connection: Upgrade
ETag: "278-5af92a5168555-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Fri, 18 Sep 2020 08:54:13 GMT
Content-Encoding: gzip
Content-Length: 368
Content-Type: text/html

• http://c-plusplus.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
129.125.14.80
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 102.72 %
Other inline scripts (∑/total): 0/0
0.300
A
Not Found
Visible Content:
Date: Tue, 15 Apr 2025 11:04:05 GMT
Server: Apache
Content-Length: 378
Content-Type: text/html; charset=iso-8859-1

• http://c-plusplus.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a01:1b0:7999:402::1150
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 251.53 %
Other inline scripts (∑/total): 0/0
0.046
A
Not Found
Visible Content:
Date: Tue, 15 Apr 2025 11:04:06 GMT
Server: Apache
X-Content-Type-Options: nosniff
Upgrade: h2,h2c
Connection: Upgrade
ETag: "70e-57844849ba5d5"
Accept-Ranges: bytes
Last-Modified: Mon, 15 Oct 2018 13:36:01 GMT
Content-Length: 1806
Content-Type: text/html

• http://www.c-plusplus.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
129.125.14.80
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 102.69 %
Other inline scripts (∑/total): 0/0
0.037
A
Not Found
Visible Content:
Date: Tue, 15 Apr 2025 11:04:06 GMT
Server: Apache
Content-Length: 382
Content-Type: text/html; charset=iso-8859-1

• http://www.c-plusplus.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a01:1b0:7999:402::1150
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 251.53 %
Other inline scripts (∑/total): 0/0
0.026
A
Not Found
Visible Content:
Date: Tue, 15 Apr 2025 11:04:06 GMT
Server: Apache
X-Content-Type-Options: nosniff
ETag: "70e-57844849ba5d5"
Accept-Ranges: bytes
Last-Modified: Mon, 15 Oct 2018 13:36:01 GMT
Content-Length: 1806
Content-Type: text/html

• https://129.125.14.80/
129.125.14.80
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
403

Html is minified: 102.16 %
Other inline scripts (∑/total): 0/0
2.424
N
Forbidden
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 15 Apr 2025 11:04:06 GMT
Server: Apache
Content-Length: 520
Content-Type: text/html; charset=iso-8859-1

• https://[2a01:01b0:7999:0402:0000:0000:0000:1150]/
2a01:1b0:7999:402::1150 gzip used - 368 / 632 - 41.77 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 137.39 %
Other inline scripts (∑/total): 0/0
3.244
N
Certificate error: RemoteCertificateNameMismatch
Date: Tue, 15 Apr 2025 11:04:10 GMT
Server: Apache
X-Content-Type-Options: nosniff
Upgrade: h2
Connection: Upgrade
ETag: "278-5af92a5168555-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Fri, 18 Sep 2020 08:54:13 GMT
Content-Encoding: gzip
Content-Length: 368
Content-Type: text/html

 

7. Comments


1. General Results, most used to calculate the result

Aname "c-plusplus.nl" is domain, public suffix is ".nl", top-level-domain is ".nl", top-level-domain-type is "country-code", Country is Netherlands (the), tld-manager is "SIDN (Stichting Internet Domeinregistratie Nederland)", num .nl-domains preloaded: 5916 (complete: 270180)
AGood: All ip addresses are public addresses
AGood: Minimal 2 ip addresses per domain name found: c-plusplus.nl has 2 different ip addresses (authoritative).
AGood: Minimal 2 ip addresses per domain name found: www.c-plusplus.nl has 2 different ip addresses (authoritative).
AGood: Ipv4 and Ipv6 addresses per domain name found: c-plusplus.nl has 1 ipv4, 1 ipv6 addresses
AGood: Ipv4 and Ipv6 addresses per domain name found: www.c-plusplus.nl has 1 ipv4, 1 ipv6 addresses
AGood: No asked Authoritative Name Server had a timeout
AGood: No cookie sent via http.
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):3 complete Content-Type - header (14 urls)
http://c-plusplus.nl/ 129.125.14.80


Url with incomplete Content-Type - header - missing charset
http://c-plusplus.nl/ 2a01:1b0:7999:402::1150


Url with incomplete Content-Type - header - missing charset
http://www.c-plusplus.nl/ 129.125.14.80


Url with incomplete Content-Type - header - missing charset
http://www.c-plusplus.nl/ 2a01:1b0:7999:402::1150


Url with incomplete Content-Type - header - missing charset
https://c-plusplus.nl/ 129.125.14.80


Url with incomplete Content-Type - header - missing charset
https://c-plusplus.nl/ 2a01:1b0:7999:402::1150


Url with incomplete Content-Type - header - missing charset
https://www.c-plusplus.nl/ 129.125.14.80


Url with incomplete Content-Type - header - missing charset
https://www.c-plusplus.nl/ 2a01:1b0:7999:402::1150


Url with incomplete Content-Type - header - missing charset
http://c-plusplus.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:1b0:7999:402::1150


Url with incomplete Content-Type - header - missing charset
http://www.c-plusplus.nl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:1b0:7999:402::1150


Url with incomplete Content-Type - header - missing charset
https://[2a01:01b0:7999:0402:0000:0000:0000:1150]/ 2a01:1b0:7999:402::1150


Url with incomplete Content-Type - header - missing charset
Bhttps://c-plusplus.nl/ 129.125.14.80
200

Missing HSTS-Header
Bhttps://c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Missing HSTS-Header
Bhttps://www.c-plusplus.nl/ 129.125.14.80
200

Missing HSTS-Header
Bhttps://www.c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Missing HSTS-Header
CError - no preferred version www or non-www. Select one version as preferred version, then add a redirect https + not-preferred version to https + preferred version. Perhaps in your port 443 vHost something like "RewriteEngine on" + "RewriteCond %{SERVER_NAME} = example.com" + "ReWriteRule ^ https://www.example.com%{REQUEST_URI} [END,QSA,R=permanent]" (three rows, without the "). That should create a redirect https + example.com ⇒ https + www.example.com. Or switch both values to use the non-www version as your preferred version.
CError - more then one version with Http-Status 200. After all redirects, all users (and search engines) should see the same https url: Non-www or www, but not both with http status 200.
HFatal error: http result with http-status 200, no encryption. Add a redirect http ⇒ https, so every connection is secure. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop.
Ihttps://c-plusplus.nl/ 129.125.14.80
200

Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
Ihttps://www.c-plusplus.nl/ 129.125.14.80
200

Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
Mhttps://129.125.14.80/ 129.125.14.80
403

Misconfiguration - main pages should never send http status 400 - 499
Nhttps://c-plusplus.nl/ 129.125.14.80
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://www.c-plusplus.nl/ 129.125.14.80
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://www.c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://129.125.14.80/ 129.125.14.80
403

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://[2a01:01b0:7999:0402:0000:0000:0000:1150]/ 2a01:1b0:7999:402::1150
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nwww.c-plusplus.nl:25


Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Nc-plusplus.nl:25


Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
O
AGood: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain c-plusplus.nl, 2 ip addresses.
AGood: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain www.c-plusplus.nl, 2 ip addresses.
Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain c-plusplus.nl, 2 ip addresses.
Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain www.c-plusplus.nl, 2 ip addresses.
BNo _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.c-plusplus.nl

2. Header-Checks

Ac-plusplus.nl 2a01:1b0:7999:402::1150
X-Content-Type-Options
Ok: Header without syntax errors found: nosniff
Awww.c-plusplus.nl 2a01:1b0:7999:402::1150
X-Content-Type-Options
Ok: Header without syntax errors found: nosniff
Fc-plusplus.nl 129.125.14.80
Content-Security-Policy
Critical: Missing Header:
Fc-plusplus.nl 129.125.14.80
X-Content-Type-Options
Critical: Missing Header:
Fc-plusplus.nl 129.125.14.80
Referrer-Policy
Critical: Missing Header:
Fc-plusplus.nl 129.125.14.80
Permissions-Policy
Critical: Missing Header:
Bc-plusplus.nl 129.125.14.80
Cross-Origin-Embedder-Policy
Info: Missing Header
Bc-plusplus.nl 129.125.14.80
Cross-Origin-Opener-Policy
Info: Missing Header
Bc-plusplus.nl 129.125.14.80
Cross-Origin-Resource-Policy
Info: Missing Header
Fc-plusplus.nl 2a01:1b0:7999:402::1150
Content-Security-Policy
Critical: Missing Header:
Fc-plusplus.nl 2a01:1b0:7999:402::1150
Referrer-Policy
Critical: Missing Header:
Fc-plusplus.nl 2a01:1b0:7999:402::1150
Permissions-Policy
Critical: Missing Header:
Bc-plusplus.nl 2a01:1b0:7999:402::1150
Cross-Origin-Embedder-Policy
Info: Missing Header
Bc-plusplus.nl 2a01:1b0:7999:402::1150
Cross-Origin-Opener-Policy
Info: Missing Header
Bc-plusplus.nl 2a01:1b0:7999:402::1150
Cross-Origin-Resource-Policy
Info: Missing Header
Fwww.c-plusplus.nl 129.125.14.80
Content-Security-Policy
Critical: Missing Header:
Fwww.c-plusplus.nl 129.125.14.80
X-Content-Type-Options
Critical: Missing Header:
Fwww.c-plusplus.nl 129.125.14.80
Referrer-Policy
Critical: Missing Header:
Fwww.c-plusplus.nl 129.125.14.80
Permissions-Policy
Critical: Missing Header:
Bwww.c-plusplus.nl 129.125.14.80
Cross-Origin-Embedder-Policy
Info: Missing Header
Bwww.c-plusplus.nl 129.125.14.80
Cross-Origin-Opener-Policy
Info: Missing Header
Bwww.c-plusplus.nl 129.125.14.80
Cross-Origin-Resource-Policy
Info: Missing Header
Fwww.c-plusplus.nl 2a01:1b0:7999:402::1150
Content-Security-Policy
Critical: Missing Header:
Fwww.c-plusplus.nl 2a01:1b0:7999:402::1150
Referrer-Policy
Critical: Missing Header:
Fwww.c-plusplus.nl 2a01:1b0:7999:402::1150
Permissions-Policy
Critical: Missing Header:
Bwww.c-plusplus.nl 2a01:1b0:7999:402::1150
Cross-Origin-Embedder-Policy
Info: Missing Header
Bwww.c-plusplus.nl 2a01:1b0:7999:402::1150
Cross-Origin-Opener-Policy
Info: Missing Header
Bwww.c-plusplus.nl 2a01:1b0:7999:402::1150
Cross-Origin-Resource-Policy
Info: Missing Header

3. DNS- and NameServer - Checks

AInfo:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 3 Name Servers.
AInfo:: 7 Queries complete, 6 with IPv6, 1 with IPv4.
Warning: Only some DNS Queries done via ipv6. IPv6 is the future, so the name servers of your name servers should have ipv6 addresses.
AGood: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.ns10.mx10.nl (2a01:1b0:7999:402::1148, 89.188.15.148), ns20.mx10.eu (2a02:348:5e6:1::391f, 83.96.201.123), ns10.mx10.nl (2a01:1b0:7999:402::1148, 89.188.15.148)
AGood (1 - 3.0):: An average of 2.3 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 3 different Name Servers found: ns10.mx10.nl, ns20.mx10.eu, ns20.mx10.nl, 2 Name Servers included in Delegation: ns10.mx10.nl, ns20.mx10.eu, 2 Name Servers included in 1 Zone definitions: ns10.mx10.nl, ns20.mx10.nl, 1 Name Servers listed in SOA.Primary: ns10.mx10.nl.
AGood: Only one SOA.Primary Name Server found.: ns10.mx10.nl.
AGood: SOA.Primary Name Server included in the delegation set.: ns10.mx10.nl.
XFatal: Inconsistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns10.mx10.nl (89.188.15.148): Delegation: ns10.mx10.nl, ns20.mx10.eu, Zone: ns10.mx10.nl, ns20.mx10.nl. Name Servers defined in Delegation, missing in Zone: ns20.mx10.eu.Name Servers defined in Zone, missing in Delegation: ns20.mx10.nl.
XFatal: Inconsistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns10.mx10.nl (2a01:1b0:7999:402::1148): Delegation: ns10.mx10.nl, ns20.mx10.eu, Zone: ns10.mx10.nl, ns20.mx10.nl. Name Servers defined in Delegation, missing in Zone: ns20.mx10.eu.Name Servers defined in Zone, missing in Delegation: ns20.mx10.nl.
XFatal: Inconsistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns20.mx10.eu (83.96.201.123): Delegation: ns10.mx10.nl, ns20.mx10.eu, Zone: ns10.mx10.nl, ns20.mx10.nl. Name Servers defined in Delegation, missing in Zone: ns20.mx10.eu.Name Servers defined in Zone, missing in Delegation: ns20.mx10.nl.
XFatal: Inconsistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns20.mx10.eu (2a02:348:5e6:1::391f): Delegation: ns10.mx10.nl, ns20.mx10.eu, Zone: ns10.mx10.nl, ns20.mx10.nl. Name Servers defined in Delegation, missing in Zone: ns20.mx10.eu.Name Servers defined in Zone, missing in Delegation: ns20.mx10.nl.
XFatal: Inconsistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns20.mx10.nl (83.96.201.123): Delegation: ns10.mx10.nl, ns20.mx10.eu, Zone: ns10.mx10.nl, ns20.mx10.nl. Name Servers defined in Delegation, missing in Zone: ns20.mx10.eu.Name Servers defined in Zone, missing in Delegation: ns20.mx10.nl.
XFatal: Inconsistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Read https://www.iana.org/help/nameserver-requirements and send it to your Name Server Hoster.: ns20.mx10.nl (2a02:348:5e6:1::391f): Delegation: ns10.mx10.nl, ns20.mx10.eu, Zone: ns10.mx10.nl, ns20.mx10.nl. Name Servers defined in Delegation, missing in Zone: ns20.mx10.eu.Name Servers defined in Zone, missing in Delegation: ns20.mx10.nl.
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 3 different Name Servers found
AGood: All name servers have ipv4- and ipv6-addresses.: 3 different Name Servers found
AGood: Name servers with different Top Level Domains / Public Suffix List entries found: 3 Name Servers, 2 Top Level Domains: nl, eu
AGood: Name Servers with different domain names found.: 2 different Domains found
Warning: All Name Servers from the same Country / IP location.: 3 Name Servers, 1 Countries: NL
AInfo: Ipv4-Subnet-list: 3 Name Servers, 2 different subnets (first Byte): 83., 89., 2 different subnets (first two Bytes): 83.96., 89.188., 2 different subnets (first three Bytes): 83.96.201., 89.188.15.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 3 Name Servers with IPv6, 2 different subnets (first block): 2a01:, 2a02:, 2 different subnets (first two blocks): 2a01:01b0:, 2a02:0348:, 2 different subnets (first three blocks): 2a01:01b0:7999:, 2a02:0348:05e6:, 2 different subnets (first four blocks): 2a01:01b0:7999:0402:, 2a02:0348:05e6:0001:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 6 good Nameserver
AGood: Nameserver supports Echo Capitalization: 6 good Nameserver
XNameserver Timeout checking EDNS512: ns20.mx10.nl / 2a02:348:5e6:1::391f
XNameserver Timeout checking EDNS512: ns4.dns.nl
Nameserver doesn't pass all EDNS-Checks: ns20.mx10.nl / 2a02:348:5e6:1::391f: OP100: ok. FLAGS: ok. V1: ok. V1OP100: fatal timeout. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok. COOKIE: ok. CLIENTSUBNET: ok.
AGood: All SOA have the same Serial Number
Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.

4. Content- and Performance-critical Checks

AGood: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
AGood: No https + http status 200 with inline CSS / JavaScript found
https://c-plusplus.nl/ 129.125.14.80
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://www.c-plusplus.nl/ 129.125.14.80
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://www.c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://[2a01:01b0:7999:0402:0000:0000:0000:1150]/ 2a01:1b0:7999:402::1150
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://c-plusplus.nl/ 129.125.14.80
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://www.c-plusplus.nl/ 129.125.14.80
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://www.c-plusplus.nl/ 2a01:1b0:7999:402::1150
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://[2a01:01b0:7999:0402:0000:0000:0000:1150]/ 2a01:1b0:7999:402::1150
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
https://c-plusplus.nl/ 129.125.14.80
200

Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 3 script elements without defer/async.
https://www.c-plusplus.nl/ 129.125.14.80
200

Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 3 script elements without defer/async.
AGood: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 2 external CSS / JavaScript files found
AGood: All images with internal compression not compressed. Some Images (.png, .jpg, .jpeg, .webp, .gif) are already compressed, so an additional compression isn't helpful. 2 images (type image/png, image/jpg, image/jpeg, image/webp, image/gif) found without additional Compression. Not required because these images are already compressed
Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 8 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 8 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 2 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 2 complete.
AGood: Some checked attribute values are enclosed in quotation marks (" or ').: 53 Html-Elements checked, 49 without problems.
IWrong: Attribute values found, not enclosed in quotation marks (" or ').: 4 Html-Elements with attributes and missing enclosed quotation marks found. 6 wrong attributes.
AGood: All img-elements have a valid alt-attribute.: 3 img-elements found.
AGood: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
ADuration: 846357 milliseconds, 846.357 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
c-plusplus.nl
129.125.14.80
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
c-plusplus.nl
129.125.14.80
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=ffpi.nl


2CN=R10, O=Let's Encrypt, C=US


c-plusplus.nl
2a01:1b0:7999:402::1150
443
name does not match
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
supported
ok

c-plusplus.nl
2a01:1b0:7999:402::1150
443
name does not match
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
supported
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=web.mx10.nl


2CN=R10, O=Let's Encrypt, C=US


www.c-plusplus.nl
129.125.14.80
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

www.c-plusplus.nl
129.125.14.80
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=ffpi.nl


2CN=R10, O=Let's Encrypt, C=US


www.c-plusplus.nl
2a01:1b0:7999:402::1150
443
name does not match
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
supported
ok

www.c-plusplus.nl
2a01:1b0:7999:402::1150
443
name does not match
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
supported
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=web.mx10.nl


2CN=R10, O=Let's Encrypt, C=US


129.125.14.80
129.125.14.80
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

129.125.14.80
129.125.14.80
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=ffpi.nl


2CN=R10, O=Let's Encrypt, C=US


[2a01:01b0:7999:0402:0000:0000:0000:1150]
2a01:1b0:7999:402::1150
443
name does not match
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
supported
ok

[2a01:01b0:7999:0402:0000:0000:0000:1150]
2a01:1b0:7999:402::1150
443
name does not match
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
supported
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=web.mx10.nl


2CN=R10, O=Let's Encrypt, C=US


c-plusplus.nl
129.125.14.80
25
Certificate/chain invalid and wrong name
Tls12
ECDH Ephermal
256
Aes256
256
Sha384
not supported
ok

c-plusplus.nl
129.125.14.80
25
Certificate/chain invalid and wrong name
Tls12

ECDH Ephermal
256
Aes256
256
Sha384
not supported
ok
 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Self signed certificate

1CN=oosix.icce.rug.nl, OU=Sendmail Server, O=Sendmail, emailAddress=admin@oosix.icce.rug.nl


www.c-plusplus.nl
129.125.14.80
25
Certificate/chain invalid and wrong name
Tls12
ECDH Ephermal
256
Aes256
256
Sha384
not supported
ok

www.c-plusplus.nl
129.125.14.80
25
Certificate/chain invalid and wrong name
Tls12

ECDH Ephermal
256
Aes256
256
Sha384
not supported
ok
 
Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Self signed certificate

1CN=oosix.icce.rug.nl, OU=Sendmail Server, O=Sendmail, emailAddress=admin@oosix.icce.rug.nl

 

9. Certificates

1.
1.
CN=ffpi.nl
02.04.2025
01.07.2025
expires in 64 days
ffpi.nl, www.ffpi.nl - 2 entries
1.
1.
CN=ffpi.nl
02.04.2025

01.07.2025
expires in 64 days


ffpi.nl, www.ffpi.nl - 2 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:06EE7FDBFF1FF1ADB47CED8E25F6854110F5
Thumbprint:C84F9060E78FD4A6C860576CDA81871407AB9937
SHA256 / Certificate:nE65HhVk7uUgTim1wDZjFlsFCw5M9+eTKNKa/o4F+/E=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):be576b29434d6335ec9a0e1f0e290c44951b12a6b763e18bdd94114484e8e2c1
SHA256 hex / Subject Public Key Information (SPKI):be576b29434d6335ec9a0e1f0e290c44951b12a6b763e18bdd94114484e8e2c1 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://r10.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




2.
CN=R10, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 684 days


2.
CN=R10, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 684 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:4BA85293F79A2FA273064BA8048D75D0
Thumbprint:00ABEFD055F9A9C784FFDEABD1DCDD8FED741436
SHA256 / Certificate:nXw/GqatKy7A1c8eJG+NmubLyf0HVa03u5dLHy+2A/M=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):Error find_SubjectPublicKeyInfo_in_Certificate - no result found
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3689 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 3689 days




KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




2.
1.
CN=web.mx10.nl
25.03.2025
23.06.2025
expires in 56 days
web.mx10.nl - 1 entry
2.
1.
CN=web.mx10.nl
25.03.2025

23.06.2025
expires in 56 days


web.mx10.nl - 1 entry

KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0501A48986701565801BB4870557FDE8997C
Thumbprint:B5A03C243E6DD0A0389B13C07A582E38443AC50D
SHA256 / Certificate:5ZBk5iXtW0VdbrUUIIrVL+ilzYscvs7iD69n3PfDxGw=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):5e3435841b6f687adf3a26e2321048afa1a23b896a35fd650023212c46bb35b5
SHA256 hex / Subject Public Key Information (SPKI):5e3435841b6f687adf3a26e2321048afa1a23b896a35fd650023212c46bb35b5 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://r10.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




2.
CN=R10, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 684 days


2.
CN=R10, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 684 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:4BA85293F79A2FA273064BA8048D75D0
Thumbprint:00ABEFD055F9A9C784FFDEABD1DCDD8FED741436
SHA256 / Certificate:nXw/GqatKy7A1c8eJG+NmubLyf0HVa03u5dLHy+2A/M=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):Error find_SubjectPublicKeyInfo_in_Certificate - no result found
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3689 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 3689 days




KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




3.
1.
E=admin@oosix.icce.rug.nl, CN=oosix.icce.rug.nl, OU=Sendmail Server, O=Sendmail
01.12.2022
28.11.2032
expires in 2771 days

3.
1.
E=admin@oosix.icce.rug.nl, CN=oosix.icce.rug.nl, OU=Sendmail Server, O=Sendmail
01.12.2022

28.11.2032
expires in 2771 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:1B56E9BAFE380DDEACC44DEF59BF404C46211BC6
Thumbprint:5990853A761BF285897F7CEFC67080CE254C9C26
SHA256 / Certificate:JV6FKLS6rxfFK9dDKLbxP6eMrGiIUX9cw0LSkFKkvIo=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):d6a9579118511030dfc730cd5985a988e38b931139461788b4ee876422ef3a8f
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:


UntrustedRoot: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.


 

10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

No CertSpotter - CT-Log entries found

 

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

No CRT - CT-Log entries found

 

11. Html-Content - Entries

Summary


Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://c-plusplus.nl/
129.125.14.80
a (4)

9

0


0
0
0


form (2)

1
726 Bytes
1
1
0
0
0
0


link
stylesheet
1
771 Bytes
0
1
0
0
0
0


meta
other
2

0


0
0
0


script

3
493 Bytes
0
3
0
0
0
0

https://c-plusplus.nl/
2a01:1b0:7999:402::1150
a

3

0


0
0
0


img

1
6,112 Bytes
0
0
1
0
0
0


meta
other
1

0


0
0
0

https://www.c-plusplus.nl/
129.125.14.80
a (4)

9

0


0
0
0


form (2)

1
730 Bytes
1
1
0
0
0
0


link
stylesheet
1
771 Bytes
0
1
0
0
0
0


meta
other
2

0


0
0
0


script

3
493 Bytes
0
3
0
0
0
0

https://www.c-plusplus.nl/
2a01:1b0:7999:402::1150
a

3

0


0
0
0


img

1
6,112 Bytes
0
0
1
0
0
0


meta
other
1

0


0
0
0

https://[2a01:01b0:7999:0402:0000:0000:0000:1150]/
2a01:1b0:7999:402::1150
a

3

0


0
0
0


img

1

0


0
0
0


meta
other
1

0


0
0
0

 

Details (currently limited to 500 rows - some problems with spam users)

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://c-plusplus.nl/
129.125.14.80
a

#


3
ok















a (1)

#


3
Space between attribute name and "=" or "=" and attribute value found.















a

/ffpi/standard.html


1
ok















a

betekenis.html


1
ok















a (1)

mailto:ffpi-info@ffpi.nl


1
Attribute values must be enclosed with " or ' (Unicode Codepoint 34 or 39).















form (1)
post
/fbin/form
500
Internal Server Error
1
Server Error
text/html; charset=iso-8859-1
missing X-Content-Type-Options nosniff





726 Bytes








link
stylesheet
/fcss/ffpi.css
200

1
ok
text/css
missing X-Content-Type-Options nosniff





No Cache-Control - header
Compression (gzip): 771/2101 Bytes






ETag: "835-58ab798b1f140-gzip"

local SRI possible, possible hash-values:

 

sha256-PafmcKhEM4H2OddhnqveXsGJp6ZR36IF68+D7u0ftVE=
sha384-ElvaZIFWkXYEpKrUACgAYEGnlUYgTUtzRlMOnIecej5EQgka1PE9i8sB8ctAqRBn
sha512-J5ZQVzUs6jJf/G1EU70taleUWLRofPU7jZRqN/y0aTBNVzB9UhWcpbxWe9XlYbSlMxNebBt7h8rXPZ6t4k3KFw==

 

<link rel="stylesheet" href="/fcss/ffpi.css" crossorigin="anonymous" integrity="sha256-PafmcKhEM4H2OddhnqveXsGJp6ZR36IF68+D7u0ftVE=" />



meta
content-type
text/html; charset=windows-1252


1
ok















meta
viewport
width=device-width, initial-scale=1.0


1
ok















script
src
/fjs/addhidden.js
200

1
ok
Missing defer / async attribute. text/javascript
missing X-Content-Type-Options nosniff





No Cache-Control - header
266 Bytes






ETag: "1ff-58ab798b1f140-gzip"

local SRI possible, possible hash-values:

 

sha256-bNyJMwIuC8b651wZ2gPO2jPwjWzWgd7PnMZq7eDDbUE=
sha384-/r/ewWGn7Eqjx5R8/rJ3co5I0DHAeUIqk0lpUCCoqE0F31qeO2evcmYILZW+G8Zl
sha512-gdi0yuFgPMPQF7VAt4/9tYOkO5/q3E+B82sJdZ7rzfMmhdPQJTWQXLehidB2dYl/fDuHgN+Au53KeXobgPDnhw==

 

<script src="/fjs/addhidden.js" crossorigin="anonymous" integrity="sha256-bNyJMwIuC8b651wZ2gPO2jPwjWzWgd7PnMZq7eDDbUE=" />



script
src
/fjs/rate.js
200

1
ok
Missing defer / async attribute. text/javascript
missing X-Content-Type-Options nosniff





No Cache-Control - header
139 Bytes






ETag: "9f-58ab798b1f140-gzip"

local SRI possible, possible hash-values:

 

sha256-hWCArIDrcX0EC0NX1uIAzhY5fQ1wKPuCKIbQ1OP6NnU=
sha384-rwvKlJNiuRINe8Iq3w0BjqdOSHDD71aYqsibamZlZyUsid2DMIUaEiI35MVfdjb8
sha512-hX51RHTj0dyHtKjSos5QhQRMG+9aes11o0f9KMiKVExBl/9MtXUfI10sSvp55Wj1qZraNVYXzWYLzRNIBNdnHA==

 

<script src="/fjs/rate.js" crossorigin="anonymous" integrity="sha256-hWCArIDrcX0EC0NX1uIAzhY5fQ1wKPuCKIbQ1OP6NnU=" />



script
src
/fjs/topage.js
200

1
ok
Missing defer / async attribute. text/javascript
missing X-Content-Type-Options nosniff





No Cache-Control - header
88 Bytes






ETag: "4d-58a922c70c6c0-gzip"

local SRI possible, possible hash-values:

 

sha256-vh2belDMxmmoEtMq60exJq+guU+C1eephzVKk6i250Y=
sha384-FFQ6M/pLDsAV9/oOqAn1IYSOTn3hvoIJmv7HNRkIMlM2ykGlQSwLjlypj71ZUE7i
sha512-52mw7VA0q3w8Z3Zu9GYRsNnKOc9rJJ0eM5Vo8BggDGDiF7MG3Zv8vhbvo7XLjt/CyB2X44sR5GBCal90dgJX0A==

 

<script src="/fjs/topage.js" crossorigin="anonymous" integrity="sha256-vh2belDMxmmoEtMq60exJq+guU+C1eephzVKk6i250Y=" />


2a01:1b0:7999:402::1150
a

https://www.mx10.nl


3
ok















img
src
https://www.mx10.nl/images/mx10-logo-81px.png
200

1
ok
alt: MX10 logoimage/png
X-Content-Type-Options nosniff found





No Cache-Control header
No Compression - 6112 Bytes






ETag: "17e0-578598ada8061"

Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



meta
charset
utf-8


1
ok














https://www.c-plusplus.nl/
129.125.14.80
a

#


3
ok















a (1)

#


3
Space between attribute name and "=" or "=" and attribute value found.















a

/ffpi/standard.html


1
ok















a

betekenis.html


1
ok















a (1)

mailto:ffpi-info@ffpi.nl


1
Attribute values must be enclosed with " or ' (Unicode Codepoint 34 or 39).















form (1)
post
/fbin/form
500
Internal Server Error
1
Server Error
text/html; charset=iso-8859-1
missing X-Content-Type-Options nosniff





730 Bytes








link
stylesheet
/fcss/ffpi.css
200

1
ok
text/css
missing X-Content-Type-Options nosniff





No Cache-Control - header
Compression (gzip): 771/2101 Bytes






ETag: "835-58ab798b1f140-gzip"

local SRI possible, possible hash-values:

 

sha256-PafmcKhEM4H2OddhnqveXsGJp6ZR36IF68+D7u0ftVE=
sha384-ElvaZIFWkXYEpKrUACgAYEGnlUYgTUtzRlMOnIecej5EQgka1PE9i8sB8ctAqRBn
sha512-J5ZQVzUs6jJf/G1EU70taleUWLRofPU7jZRqN/y0aTBNVzB9UhWcpbxWe9XlYbSlMxNebBt7h8rXPZ6t4k3KFw==

 

<link rel="stylesheet" href="/fcss/ffpi.css" crossorigin="anonymous" integrity="sha256-PafmcKhEM4H2OddhnqveXsGJp6ZR36IF68+D7u0ftVE=" />



meta
content-type
text/html; charset=windows-1252


1
ok















meta
viewport
width=device-width, initial-scale=1.0


1
ok















script
src
/fjs/addhidden.js
200

1
ok
Missing defer / async attribute. text/javascript
missing X-Content-Type-Options nosniff





No Cache-Control - header
266 Bytes






ETag: "1ff-58ab798b1f140-gzip"

local SRI possible, possible hash-values:

 

sha256-bNyJMwIuC8b651wZ2gPO2jPwjWzWgd7PnMZq7eDDbUE=
sha384-/r/ewWGn7Eqjx5R8/rJ3co5I0DHAeUIqk0lpUCCoqE0F31qeO2evcmYILZW+G8Zl
sha512-gdi0yuFgPMPQF7VAt4/9tYOkO5/q3E+B82sJdZ7rzfMmhdPQJTWQXLehidB2dYl/fDuHgN+Au53KeXobgPDnhw==

 

<script src="/fjs/addhidden.js" crossorigin="anonymous" integrity="sha256-bNyJMwIuC8b651wZ2gPO2jPwjWzWgd7PnMZq7eDDbUE=" />



script
src
/fjs/rate.js
200

1
ok
Missing defer / async attribute. text/javascript
missing X-Content-Type-Options nosniff





No Cache-Control - header
139 Bytes






ETag: "9f-58ab798b1f140-gzip"

local SRI possible, possible hash-values:

 

sha256-hWCArIDrcX0EC0NX1uIAzhY5fQ1wKPuCKIbQ1OP6NnU=
sha384-rwvKlJNiuRINe8Iq3w0BjqdOSHDD71aYqsibamZlZyUsid2DMIUaEiI35MVfdjb8
sha512-hX51RHTj0dyHtKjSos5QhQRMG+9aes11o0f9KMiKVExBl/9MtXUfI10sSvp55Wj1qZraNVYXzWYLzRNIBNdnHA==

 

<script src="/fjs/rate.js" crossorigin="anonymous" integrity="sha256-hWCArIDrcX0EC0NX1uIAzhY5fQ1wKPuCKIbQ1OP6NnU=" />



script
src
/fjs/topage.js
200

1
ok
Missing defer / async attribute. text/javascript
missing X-Content-Type-Options nosniff





No Cache-Control - header
88 Bytes






ETag: "4d-58a922c70c6c0-gzip"

local SRI possible, possible hash-values:

 

sha256-vh2belDMxmmoEtMq60exJq+guU+C1eephzVKk6i250Y=
sha384-FFQ6M/pLDsAV9/oOqAn1IYSOTn3hvoIJmv7HNRkIMlM2ykGlQSwLjlypj71ZUE7i
sha512-52mw7VA0q3w8Z3Zu9GYRsNnKOc9rJJ0eM5Vo8BggDGDiF7MG3Zv8vhbvo7XLjt/CyB2X44sR5GBCal90dgJX0A==

 

<script src="/fjs/topage.js" crossorigin="anonymous" integrity="sha256-vh2belDMxmmoEtMq60exJq+guU+C1eephzVKk6i250Y=" />


2a01:1b0:7999:402::1150
a

https://www.mx10.nl


3
ok















img
src
https://www.mx10.nl/images/mx10-logo-81px.png
200

1
ok
alt: MX10 logoimage/png
X-Content-Type-Options nosniff found





No Cache-Control header
No Compression - 6112 Bytes






ETag: "17e0-578598ada8061"

Server-Header Access-Control-Allow-Origin: not found
Cross-Origin Resource Sharing (CORS) not supported



meta
charset
utf-8


1
ok














https://[2a01:01b0:7999:0402:0000:0000:0000:1150]/
2a01:1b0:7999:402::1150
a

https://www.mx10.nl


3
ok















img
src
https://www.mx10.nl/images/mx10-logo-81px.png


1
ok
alt: MX10 logo














meta
charset
utf-8


1
ok














 

12. Html-Parsing via https://validator.w3.org/nu/

Url used (first standard-https-result with http status 200): https://c-plusplus.nl/

Summary

Good: No non-document-errors
4 errors
1 warnings

TypeMessagenum found
1.errorLegacy encoding windows-1252 used. Documents must use UTF-8.1
2.errorBad value text/html; charset=windows-1252 for attribute content on element meta: charset= must be followed by utf-8.1
3.errorElement head is missing a required instance of child element title.1
4.errorElement div not allowed as child of element h1 in this context. (Suppressing further errors from this subtree.)1
5.warningConsider adding a lang attribute to the html start tag to declare the language of this document.1

Details


TypeMessage + Sample
1errorLegacy encoding windows-1252 used. Documents must use UTF-8.


2errorBad value text/html; charset=windows-1252 for attribute content on element meta: charset= must be followed by utf-8.

From line 5, column 5 to line 6, column 32

ss"> <meta http-equiv="content-type" content="text/html; charset=windows-1252"> <
3errorElement head is missing a required instance of child element title.

From line 11, column 1 to line 11, column 7

</script> </head> <bod
4errorElement div not allowed as child of element h1 in this context. (Suppressing further errors from this subtree.)

From line 52, column 5 to line 52, column 23

><br> <div class=subhead>
5warningConsider adding a lang attribute to the html start tag to declare the language of this document.

From line 1, column 16 to line 2, column 6

TYPE html> <html><head>

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns10.mx10.nl, ns20.mx10.eu, ns20.mx10.nl

 

QNr.DomainTypeNS used
1
nl
NS
d.root-servers.net (199.7.91.13)

Answer: ns1.dns.nl, ns3.dns.nl, ns4.dns.nl
2
ns10.mx10.nl: 2a01:1b0:7999:402::1148, 89.188.15.148
NS
ns1.dns.nl (2001:678:2c:0:194:0:28:53)
3
eu
NS
c.root-servers.net (2001:500:2::c)

Answer: be.dns.eu, si.dns.eu, w.dns.eu, x.dns.eu, y.dns.eu
4
ns20.mx10.eu: 2a02:348:5e6:1::391f, 83.96.201.123
NS
si.dns.eu (2001:1470:8000:100::62)
5
ns20.mx10.nl
NS
ns1.dns.nl (2001:678:2c:0:194:0:28:53)

Answer: ns10.mx10.nl, ns20.mx10.eu

Answer: ns10.mx10.nl
2a01:1b0:7999:402::1148, 89.188.15.148
6
ns20.mx10.nl: 83.96.201.123
A
ns10.mx10.nl (2a01:1b0:7999:402::1148)
7
ns20.mx10.nl: 2a02:348:5e6:1::391f
AAAA
ns10.mx10.nl (2a01:1b0:7999:402::1148)

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.c-plusplus.nl
0

no CAA entry found
1
0
c-plusplus.nl
0

no CAA entry found
1
0
nl
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
c-plusplus.nl
v=spf1 mx a include:_spf.mx10.nl -all
ok
1
0
www.c-plusplus.nl

ok
1
0
_acme-challenge.c-plusplus.nl

Name Error - The domain name does not exist
1
0
_acme-challenge.www.c-plusplus.nl

Name Error - The domain name does not exist
1
0
_acme-challenge.c-plusplus.nl.c-plusplus.nl

Name Error - The domain name does not exist
1
0
_acme-challenge.www.c-plusplus.nl.c-plusplus.nl

Name Error - The domain name does not exist
1
0
_acme-challenge.www.c-plusplus.nl.www.c-plusplus.nl

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

TypeDomainPrefValueDNS-errornum AnswersStatusDescription
MX

c-plusplus.nl
10
oosix.icce.rug.nl
01ok

A


129.125.14.80
01ok

CNAME


00ok
SPF
TXT
c-plusplus.nl

v=spf1 mx a include:_spf.mx10.nl -all
ok

MX
c-plusplus.nl

oosix.icce.rug.nl
ok

A
c-plusplus.nl

129.125.14.80
ok

AAAA
c-plusplus.nl

2a01:1b0:7999:402::1150
ok

TXT
_spf.mx10.nl

v=spf1 ip4:89.188.15.128 ip4:89.188.15.138 ip4:83.137.144.41 ip6:2a01:1b0:7999:402::1128/128 -all
ok
_dmarc
TXT
_dmarc.c-plusplus.nl

v=DMARC1; p=none
ok

 

 

17. Cipher Suites

Complete

1
0 Ciphers
0.00 Ciphers/Check
602.81 sec602.81 sec/Check
0 without, 0 FS

c-plusplus.nl
129.125.14.80
25
Fatal: 234 Cipher Suites checked, no connection possible. Duration 600 seconds, that's too long. May be a blocking firewall, AutoBan, FailBan etc. Remove that if you want to check your Cipher Suites.
0 Ciphers, 602.81 sec








443
Skipped because of the previous timeout.
0 Ciphers, 0.00 sec







2a01:1b0:7999:402::1150
443
Skipped because of the previous timeout.
0 Ciphers, 0.00 sec






www.c-plusplus.nl
129.125.14.80
25
Skipped because of the previous timeout.
0 Ciphers, 0.01 sec








443
Skipped because of the previous timeout.
0 Ciphers, 0.00 sec







2a01:1b0:7999:402::1150
443
Skipped because of the previous timeout.
0 Ciphers, 0.00 sec






 

18. Portchecks

DomainIPPortDescriptionResultAnswer
c-plusplus.nl
129.125.14.80
21
FTP



c-plusplus.nl
129.125.14.80
21
FTP



c-plusplus.nl
129.125.14.80
22
SSH
open
SSH-2.0-OpenSSH_9.9p2

c-plusplus.nl
129.125.14.80
22
SSH
open
SSH-2.0-OpenSSH_9.9p2
Bad: SSH without DNS SSHFP Record found
c-plusplus.nl
129.125.14.80
25
SMTP
open
220 oosix.icce.rug.nl ESMTP Sendmail 8.18.1/8.18.1/Debian-6; Tue, 15 Apr 2025 13:04:53 +0200; (No UCE/UBE) logging access from: intern.server-daten.de(OK)-intern.server-daten.de [85.215.2.227]

 

Answer EHLO: 250-oosix.icce.rug.nl Hello intern.server-daten.de [85.215.2.227], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-AUTH DIGEST-MD5 CRAM-MD5 250-STARTTLS 250-DELIVERBY 250 HELP
Mail certificate is invalid
c-plusplus.nl
129.125.14.80
25
SMTP
open
220 oosix.icce.rug.nl ESMTP Sendmail 8.18.1/8.18.1/Debian-6; Tue, 15 Apr 2025 13:04:53 +0200; (No UCE/UBE) logging access from: intern.server-daten.de(OK)-intern.server-daten.de [85.215.2.227]
Mail certificate is invalid

Answer EHLO: 250-oosix.icce.rug.nl Hello intern.server-daten.de [85.215.2.227], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-AUTH DIGEST-MD5 CRAM-MD5 250-STARTTLS 250-DELIVERBY 250 HELP Good: STARTTLS found

No Ssl-Connection possibleNo Ssl-Connection possible, Check aborted
c-plusplus.nl
129.125.14.80
53
DNS



c-plusplus.nl
129.125.14.80
53
DNS



c-plusplus.nl
129.125.14.80
110
POP3



c-plusplus.nl
129.125.14.80
110
POP3



c-plusplus.nl
129.125.14.80
143
IMAP



c-plusplus.nl
129.125.14.80
143
IMAP



c-plusplus.nl
129.125.14.80
465
SMTP (encrypted)



c-plusplus.nl
129.125.14.80
465
SMTP (encrypted)



c-plusplus.nl
129.125.14.80
587
SMTP (encrypted, submission)



c-plusplus.nl
129.125.14.80
587
SMTP (encrypted, submission)



c-plusplus.nl
129.125.14.80
993
IMAP (encrypted)



c-plusplus.nl
129.125.14.80
993
IMAP (encrypted)



c-plusplus.nl
129.125.14.80
995
POP3 (encrypted)



c-plusplus.nl
129.125.14.80
995
POP3 (encrypted)



c-plusplus.nl
129.125.14.80
1433
MS SQL



c-plusplus.nl
129.125.14.80
1433
MS SQL



c-plusplus.nl
129.125.14.80
2082
cPanel (http)



c-plusplus.nl
129.125.14.80
2082
cPanel (http)



c-plusplus.nl
129.125.14.80
2083
cPanel (https)



c-plusplus.nl
129.125.14.80
2083
cPanel (https)



c-plusplus.nl
129.125.14.80
2086
WHM (http)



c-plusplus.nl
129.125.14.80
2086
WHM (http)



c-plusplus.nl
129.125.14.80
2087
WHM (https)



c-plusplus.nl
129.125.14.80
2087
WHM (https)



c-plusplus.nl
129.125.14.80
2089
cPanel Licensing



c-plusplus.nl
129.125.14.80
2089
cPanel Licensing



c-plusplus.nl
129.125.14.80
2095
cPanel Webmail (http)



c-plusplus.nl
129.125.14.80
2095
cPanel Webmail (http)



c-plusplus.nl
129.125.14.80
2096
cPanel Webmail (https)



c-plusplus.nl
129.125.14.80
2096
cPanel Webmail (https)



c-plusplus.nl
129.125.14.80
2222
DirectAdmin (http)



c-plusplus.nl
129.125.14.80
2222
DirectAdmin (http)



c-plusplus.nl
129.125.14.80
2222
DirectAdmin (https)



c-plusplus.nl
129.125.14.80
2222
DirectAdmin (https)



c-plusplus.nl
129.125.14.80
3306
mySql



c-plusplus.nl
129.125.14.80
3306
mySql



c-plusplus.nl
129.125.14.80
5224
Plesk Licensing



c-plusplus.nl
129.125.14.80
5224
Plesk Licensing



c-plusplus.nl
129.125.14.80
5432
PostgreSQL



c-plusplus.nl
129.125.14.80
5432
PostgreSQL



c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (http)



c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (http)



c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (https)



c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (https)



c-plusplus.nl
129.125.14.80
8083
VestaCP http



c-plusplus.nl
129.125.14.80
8083
VestaCP http



c-plusplus.nl
129.125.14.80
8083
VestaCP https



c-plusplus.nl
129.125.14.80
8083
VestaCP https



c-plusplus.nl
129.125.14.80
8443
Plesk Administration (https)



c-plusplus.nl
129.125.14.80
8443
Plesk Administration (https)



c-plusplus.nl
129.125.14.80
8447
Plesk Installer + Updates



c-plusplus.nl
129.125.14.80
8447
Plesk Installer + Updates



c-plusplus.nl
129.125.14.80
8880
Plesk Administration (http)



c-plusplus.nl
129.125.14.80
8880
Plesk Administration (http)



c-plusplus.nl
129.125.14.80
10000
Webmin (http)



c-plusplus.nl
129.125.14.80
10000
Webmin (http)



c-plusplus.nl
129.125.14.80
10000
Webmin (https)



c-plusplus.nl
129.125.14.80
10000
Webmin (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
21
FTP
open
220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- 220-You are user number 1 of 50 allowed. 220-Local time is now 13:04. Server port: 21. 220-This is a private system - No anonymous login 220 You will be disconnected after 15 minutes of inactivity.

c-plusplus.nl
2a01:1b0:7999:402::1150
21
FTP
open
220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- 220-You are user number 1 of 50 allowed. 220-Local time is now 13:04. Server port: 21. 220-This is a private system - No anonymous login 220 You will be disconnected after 15 minutes of inactivity.

c-plusplus.nl
2a01:1b0:7999:402::1150
22
SSH
open
SSH-2.0-OpenSSH_8.4p1 Debian-5+deb11u4

c-plusplus.nl
2a01:1b0:7999:402::1150
22
SSH
open
SSH-2.0-OpenSSH_8.4p1 Debian-5+deb11u4
Bad: SSH without DNS SSHFP Record found

Possible DNS SSHFP Entries:
c-plusplus.nl IN SSHFP 1 2 4c6b4abd6fadd3d320c218fa6e61b267f85301cd6355b7370a3267b443555716
c-plusplus.nl IN SSHFP 3 2 4194fc420e563a16ec3a389b64e3964d630a6d4bbf2668260a6b996d54e87c6c
c-plusplus.nl IN SSHFP 4 2 a3239a3377c0037c6be3e23c8575246a7be6ea196df463b432cd7b7652455b6c
c-plusplus.nl
2a01:1b0:7999:402::1150
25
SMTP



c-plusplus.nl
2a01:1b0:7999:402::1150
25
SMTP



c-plusplus.nl
2a01:1b0:7999:402::1150
53
DNS



c-plusplus.nl
2a01:1b0:7999:402::1150
53
DNS



c-plusplus.nl
2a01:1b0:7999:402::1150
110
POP3



c-plusplus.nl
2a01:1b0:7999:402::1150
110
POP3



c-plusplus.nl
2a01:1b0:7999:402::1150
143
IMAP



c-plusplus.nl
2a01:1b0:7999:402::1150
143
IMAP



c-plusplus.nl
2a01:1b0:7999:402::1150
465
SMTP (encrypted)



c-plusplus.nl
2a01:1b0:7999:402::1150
465
SMTP (encrypted)



c-plusplus.nl
2a01:1b0:7999:402::1150
587
SMTP (encrypted, submission)



c-plusplus.nl
2a01:1b0:7999:402::1150
587
SMTP (encrypted, submission)



c-plusplus.nl
2a01:1b0:7999:402::1150
993
IMAP (encrypted)



c-plusplus.nl
2a01:1b0:7999:402::1150
993
IMAP (encrypted)



c-plusplus.nl
2a01:1b0:7999:402::1150
995
POP3 (encrypted)



c-plusplus.nl
2a01:1b0:7999:402::1150
995
POP3 (encrypted)



c-plusplus.nl
2a01:1b0:7999:402::1150
1433
MS SQL



c-plusplus.nl
2a01:1b0:7999:402::1150
1433
MS SQL



c-plusplus.nl
2a01:1b0:7999:402::1150
2082
cPanel (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2082
cPanel (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2083
cPanel (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
2083
cPanel (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
2086
WHM (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2086
WHM (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2087
WHM (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
2087
WHM (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
2089
cPanel Licensing



c-plusplus.nl
2a01:1b0:7999:402::1150
2089
cPanel Licensing



c-plusplus.nl
2a01:1b0:7999:402::1150
2095
cPanel Webmail (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2095
cPanel Webmail (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2096
cPanel Webmail (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
2096
cPanel Webmail (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
3306
mySql



c-plusplus.nl
2a01:1b0:7999:402::1150
3306
mySql



c-plusplus.nl
2a01:1b0:7999:402::1150
5224
Plesk Licensing



c-plusplus.nl
2a01:1b0:7999:402::1150
5224
Plesk Licensing



c-plusplus.nl
2a01:1b0:7999:402::1150
5432
PostgreSQL



c-plusplus.nl
2a01:1b0:7999:402::1150
5432
PostgreSQL



c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP http



c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP http



c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP https



c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP https



c-plusplus.nl
2a01:1b0:7999:402::1150
8443
Plesk Administration (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
8443
Plesk Administration (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
8447
Plesk Installer + Updates



c-plusplus.nl
2a01:1b0:7999:402::1150
8447
Plesk Installer + Updates



c-plusplus.nl
2a01:1b0:7999:402::1150
8880
Plesk Administration (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
8880
Plesk Administration (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (http)



c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (https)



c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (https)



www.c-plusplus.nl
129.125.14.80
21
FTP



www.c-plusplus.nl
129.125.14.80
21
FTP



www.c-plusplus.nl
129.125.14.80
22
SSH
open
SSH-2.0-OpenSSH_9.9p2

www.c-plusplus.nl
129.125.14.80
22
SSH
open
SSH-2.0-OpenSSH_9.9p2
Bad: SSH without DNS SSHFP Record found
www.c-plusplus.nl
129.125.14.80
25
SMTP
open
220 oosix.icce.rug.nl ESMTP Sendmail 8.18.1/8.18.1/Debian-6; Tue, 15 Apr 2025 13:05:41 +0200; (No UCE/UBE) logging access from: intern.server-daten.de(OK)-intern.server-daten.de [85.215.2.227]

 

Answer EHLO: 250-oosix.icce.rug.nl Hello intern.server-daten.de [85.215.2.227], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-AUTH DIGEST-MD5 CRAM-MD5 250-STARTTLS 250-DELIVERBY 250 HELP
Mail certificate is invalid
www.c-plusplus.nl
129.125.14.80
25
SMTP
open
220 oosix.icce.rug.nl ESMTP Sendmail 8.18.1/8.18.1/Debian-6; Tue, 15 Apr 2025 13:05:41 +0200; (No UCE/UBE) logging access from: intern.server-daten.de(OK)-intern.server-daten.de [85.215.2.227]
Mail certificate is invalid

Answer EHLO: 250-oosix.icce.rug.nl Hello intern.server-daten.de [85.215.2.227], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-8BITMIME 250-SIZE 250-DSN 250-AUTH DIGEST-MD5 CRAM-MD5 250-STARTTLS 250-DELIVERBY 250 HELP Good: STARTTLS found

No Ssl-Connection possibleNo Ssl-Connection possible, Check aborted
www.c-plusplus.nl
129.125.14.80
53
DNS



www.c-plusplus.nl
129.125.14.80
53
DNS



www.c-plusplus.nl
129.125.14.80
110
POP3



www.c-plusplus.nl
129.125.14.80
110
POP3



www.c-plusplus.nl
129.125.14.80
143
IMAP



www.c-plusplus.nl
129.125.14.80
143
IMAP



www.c-plusplus.nl
129.125.14.80
465
SMTP (encrypted)



www.c-plusplus.nl
129.125.14.80
465
SMTP (encrypted)



www.c-plusplus.nl
129.125.14.80
587
SMTP (encrypted, submission)



www.c-plusplus.nl
129.125.14.80
587
SMTP (encrypted, submission)



www.c-plusplus.nl
129.125.14.80
993
IMAP (encrypted)



www.c-plusplus.nl
129.125.14.80
993
IMAP (encrypted)



www.c-plusplus.nl
129.125.14.80
995
POP3 (encrypted)



www.c-plusplus.nl
129.125.14.80
995
POP3 (encrypted)



www.c-plusplus.nl
129.125.14.80
1433
MS SQL



www.c-plusplus.nl
129.125.14.80
1433
MS SQL



www.c-plusplus.nl
129.125.14.80
2082
cPanel (http)



www.c-plusplus.nl
129.125.14.80
2082
cPanel (http)



www.c-plusplus.nl
129.125.14.80
2083
cPanel (https)



www.c-plusplus.nl
129.125.14.80
2083
cPanel (https)



www.c-plusplus.nl
129.125.14.80
2086
WHM (http)



www.c-plusplus.nl
129.125.14.80
2086
WHM (http)



www.c-plusplus.nl
129.125.14.80
2087
WHM (https)



www.c-plusplus.nl
129.125.14.80
2087
WHM (https)



www.c-plusplus.nl
129.125.14.80
2089
cPanel Licensing



www.c-plusplus.nl
129.125.14.80
2089
cPanel Licensing



www.c-plusplus.nl
129.125.14.80
2095
cPanel Webmail (http)



www.c-plusplus.nl
129.125.14.80
2095
cPanel Webmail (http)



www.c-plusplus.nl
129.125.14.80
2096
cPanel Webmail (https)



www.c-plusplus.nl
129.125.14.80
2096
cPanel Webmail (https)



www.c-plusplus.nl
129.125.14.80
2222
DirectAdmin (http)



www.c-plusplus.nl
129.125.14.80
2222
DirectAdmin (http)



www.c-plusplus.nl
129.125.14.80
2222
DirectAdmin (https)



www.c-plusplus.nl
129.125.14.80
2222
DirectAdmin (https)



www.c-plusplus.nl
129.125.14.80
3306
mySql



www.c-plusplus.nl
129.125.14.80
3306
mySql



www.c-plusplus.nl
129.125.14.80
5224
Plesk Licensing



www.c-plusplus.nl
129.125.14.80
5224
Plesk Licensing



www.c-plusplus.nl
129.125.14.80
5432
PostgreSQL



www.c-plusplus.nl
129.125.14.80
5432
PostgreSQL



www.c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (http)



www.c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (http)



www.c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (https)



www.c-plusplus.nl
129.125.14.80
8080
Ookla Speedtest (https)



www.c-plusplus.nl
129.125.14.80
8083
VestaCP http



www.c-plusplus.nl
129.125.14.80
8083
VestaCP http



www.c-plusplus.nl
129.125.14.80
8083
VestaCP https



www.c-plusplus.nl
129.125.14.80
8083
VestaCP https



www.c-plusplus.nl
129.125.14.80
8443
Plesk Administration (https)



www.c-plusplus.nl
129.125.14.80
8443
Plesk Administration (https)



www.c-plusplus.nl
129.125.14.80
8447
Plesk Installer + Updates



www.c-plusplus.nl
129.125.14.80
8447
Plesk Installer + Updates



www.c-plusplus.nl
129.125.14.80
8880
Plesk Administration (http)



www.c-plusplus.nl
129.125.14.80
8880
Plesk Administration (http)



www.c-plusplus.nl
129.125.14.80
10000
Webmin (http)



www.c-plusplus.nl
129.125.14.80
10000
Webmin (http)



www.c-plusplus.nl
129.125.14.80
10000
Webmin (https)



www.c-plusplus.nl
129.125.14.80
10000
Webmin (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
21
FTP
open
220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- 220-You are user number 1 of 50 allowed. 220-Local time is now 13:04. Server port: 21. 220-This is a private system - No anonymous login 220 You will be disconnected after 15 minutes of inactivity.

www.c-plusplus.nl
2a01:1b0:7999:402::1150
21
FTP
open
220---------- Welcome to Pure-FTPd [privsep] [TLS] ---------- 220-You are user number 1 of 50 allowed. 220-Local time is now 13:04. Server port: 21. 220-This is a private system - No anonymous login 220 You will be disconnected after 15 minutes of inactivity.

www.c-plusplus.nl
2a01:1b0:7999:402::1150
22
SSH
open
SSH-2.0-OpenSSH_8.4p1 Debian-5+deb11u4

www.c-plusplus.nl
2a01:1b0:7999:402::1150
22
SSH
open
SSH-2.0-OpenSSH_8.4p1 Debian-5+deb11u4
Bad: SSH without DNS SSHFP Record found

Possible DNS SSHFP Entries:
www.c-plusplus.nl IN SSHFP 1 2 4c6b4abd6fadd3d320c218fa6e61b267f85301cd6355b7370a3267b443555716
www.c-plusplus.nl IN SSHFP 3 2 4194fc420e563a16ec3a389b64e3964d630a6d4bbf2668260a6b996d54e87c6c
www.c-plusplus.nl IN SSHFP 4 2 a3239a3377c0037c6be3e23c8575246a7be6ea196df463b432cd7b7652455b6c
www.c-plusplus.nl
2a01:1b0:7999:402::1150
25
SMTP



www.c-plusplus.nl
2a01:1b0:7999:402::1150
25
SMTP



www.c-plusplus.nl
2a01:1b0:7999:402::1150
53
DNS



www.c-plusplus.nl
2a01:1b0:7999:402::1150
53
DNS



www.c-plusplus.nl
2a01:1b0:7999:402::1150
110
POP3



www.c-plusplus.nl
2a01:1b0:7999:402::1150
110
POP3



www.c-plusplus.nl
2a01:1b0:7999:402::1150
143
IMAP



www.c-plusplus.nl
2a01:1b0:7999:402::1150
143
IMAP



www.c-plusplus.nl
2a01:1b0:7999:402::1150
465
SMTP (encrypted)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
465
SMTP (encrypted)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
587
SMTP (encrypted, submission)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
587
SMTP (encrypted, submission)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
993
IMAP (encrypted)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
993
IMAP (encrypted)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
995
POP3 (encrypted)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
995
POP3 (encrypted)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
1433
MS SQL



www.c-plusplus.nl
2a01:1b0:7999:402::1150
1433
MS SQL



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2082
cPanel (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2082
cPanel (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2083
cPanel (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2083
cPanel (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2086
WHM (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2086
WHM (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2087
WHM (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2087
WHM (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2089
cPanel Licensing



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2089
cPanel Licensing



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2095
cPanel Webmail (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2095
cPanel Webmail (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2096
cPanel Webmail (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2096
cPanel Webmail (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
2222
DirectAdmin (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
3306
mySql



www.c-plusplus.nl
2a01:1b0:7999:402::1150
3306
mySql



www.c-plusplus.nl
2a01:1b0:7999:402::1150
5224
Plesk Licensing



www.c-plusplus.nl
2a01:1b0:7999:402::1150
5224
Plesk Licensing



www.c-plusplus.nl
2a01:1b0:7999:402::1150
5432
PostgreSQL



www.c-plusplus.nl
2a01:1b0:7999:402::1150
5432
PostgreSQL



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8080
Ookla Speedtest (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP http



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP http



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP https



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8083
VestaCP https



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8443
Plesk Administration (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8443
Plesk Administration (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8447
Plesk Installer + Updates



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8447
Plesk Installer + Updates



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8880
Plesk Administration (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
8880
Plesk Administration (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (http)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (https)



www.c-plusplus.nl
2a01:1b0:7999:402::1150
10000
Webmin (https)



 

 

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