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

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Shortcuts: 1. IP-Addresses | 2. DNSSEC | 3. Name Servers | 4. SOA-Entries | 5. Screenshots | 6. Url-Checks | 7. Comments | 8. Connections | 9. Certificates | 10. CT-Logs | 11. Html-Content | 12. Html-Parsing | 13. NameServer-IPAddresses | 14. CAA | 15. TXT | 16. DomainServiceEntries | 17. Cipher Suites | 18. Portchecks |

 

A

 

Top config

 

Checked:
23.06.2021 22:09:19

 

Older results

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1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
ftp.rtsystem.com
CNAME
mail.rtsystem.com
yes
1
0

A
77.89.52.101
Forlì/Emilia-Romagna/Italy (IT) - Acantho Network
Hostname: mail.rtsystem.com
yes


www.ftp.rtsystem.com

Name Error
yes
1
0
*.rtsystem.com
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.ftp.rtsystem.com
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 14631, Flags 256






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






Public Key with Algorithm 8, KeyTag 26838, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.07.2021, 00:00:00 +, Signature-Inception: 20.06.2021, 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: com

com
1 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest 4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=






2 RRSIG RR to validate DS RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 06.07.2021, 17:00:00 +, Signature-Inception: 23.06.2021, 16:00:00 +, KeyTag 14631, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 14631 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 30909, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 54714, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 04.07.2021, 18:24:21 +, Signature-Inception: 19.06.2021, 18:19:21 +, KeyTag 30909, Signer-Name: com






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest "4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: rtsystem.com

rtsystem.com
0 DS RR in the parent zone found






DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "9q91urrtiqaruh2nhkujm1ctkm4m29m9" between the hashed NSEC3-owner "9q91uisvj0imec58u4s3bsmo3mil1ls3" and the hashed NextOwner "9q9240r8nemcknssncc057ujogekegnm". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 9q91uisvj0imec58u4s3bsmo3mil1ls3.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 28.06.2021, 05:03:17 +, Signature-Inception: 21.06.2021, 03:53:17 +, KeyTag 54714, Signer-Name: com






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q1gin43n1arrc9osm6qpqr81h5m9a". So that domain name is the Closest Encloser of "rtsystem.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 29.06.2021, 04:24:18 +, Signature-Inception: 22.06.2021, 03:14:18 +, KeyTag 54714, Signer-Name: com






0 DNSKEY RR found









Zone: ftp.rtsystem.com

ftp.rtsystem.com
0 DS RR in the parent zone found



Zone: www.ftp.rtsystem.com

www.ftp.rtsystem.com
0 DS RR in the parent zone found



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 14631, Flags 256






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






Public Key with Algorithm 8, KeyTag 26838, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.07.2021, 00:00:00 +, Signature-Inception: 20.06.2021, 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: com

com
1 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest 4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=






2 RRSIG RR to validate DS RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 06.07.2021, 17:00:00 +, Signature-Inception: 23.06.2021, 16:00:00 +, KeyTag 14631, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 14631 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 30909, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 54714, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 04.07.2021, 18:24:21 +, Signature-Inception: 19.06.2021, 18:19:21 +, KeyTag 30909, Signer-Name: com






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest "4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: rtsystem.com

rtsystem.com
0 DS RR in the parent zone found






DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "9q91urrtiqaruh2nhkujm1ctkm4m29m9" between the hashed NSEC3-owner "9q91uisvj0imec58u4s3bsmo3mil1ls3" and the hashed NextOwner "9q9240r8nemcknssncc057ujogekegnm". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 9q91uisvj0imec58u4s3bsmo3mil1ls3.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 28.06.2021, 05:03:17 +, Signature-Inception: 21.06.2021, 03:53:17 +, KeyTag 54714, Signer-Name: com






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q1gin43n1arrc9osm6qpqr81h5m9a". So that domain name is the Closest Encloser of "rtsystem.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 29.06.2021, 04:24:18 +, Signature-Inception: 22.06.2021, 03:14:18 +, KeyTag 54714, Signer-Name: com






0 DNSKEY RR found









Zone: mail.rtsystem.com

mail.rtsystem.com
0 DS RR in the parent zone found






0 DNSKEY RR found







 

3. Name Servers

DomainNameserverNS-IP
www.ftp.rtsystem.com
•  ns1.register.it

rtsystem.com
•  ns1.register.it / dupre04
195.110.124.140
Milan/Lombardy/Italy (IT) - Register S.P.A.		•

•  ns2.register.it / dupre12
195.7.227.1
London/England/United Kingdom (GB) - Namesco Limited		•
com
•  a.gtld-servers.net / nnn1-fra6
•

•  b.gtld-servers.net / nnn1-eltxl2
•

•  c.gtld-servers.net / nnn1-fra6
•

•  d.gtld-servers.net / nnn1-fra6
•

•  e.gtld-servers.net / nnn1-fra6
•

•  f.gtld-servers.net / nnn1-fra5
•

•  g.gtld-servers.net / nnn1-fra5
•

•  h.gtld-servers.net / nnn1-fra5
•

•  i.gtld-servers.net / nnn1-fra5
•

•  j.gtld-servers.net / nnn1-ein4
•

•  k.gtld-servers.net / nnn1-ein3
•

•  l.gtld-servers.net / nnn1-ein5
•

•  m.gtld-servers.net / nnn1-ein3
•
mail.rtsystem.com
•  ns1.register.it / dupre07
195.110.124.140
Milan/Lombardy/Italy (IT) - Register S.P.A.		•
rtsystem.com
•  ns1.register.it / dupre02
195.110.124.140
Milan/Lombardy/Italy (IT) - Register S.P.A.		•

•  ns2.register.it / dupre18
195.7.227.1
London/England/United Kingdom (GB) - Namesco Limited		•
com
•  a.gtld-servers.net / nnn1-fra6
•

•  b.gtld-servers.net / nnn1-eltxl2
•

•  c.gtld-servers.net / nnn1-fra6
•

•  d.gtld-servers.net / nnn1-fra6
•

•  e.gtld-servers.net / nnn1-fra6
•

•  f.gtld-servers.net / nnn1-fra5
•

•  g.gtld-servers.net / nnn1-fra5
•

•  h.gtld-servers.net / nnn1-fra5
•

•  i.gtld-servers.net / nnn1-fra5
•

•  j.gtld-servers.net / nnn1-ein5
•

•  k.gtld-servers.net / nnn1-ein3
•

•  l.gtld-servers.net / nnn1-ein5
•

•  m.gtld-servers.net / nnn1-ein4
•

 

4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1624478928
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:1


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1624478943
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:12


Domain:rtsystem.com
Zone-Name:rtsystem.com
Primary:ns1.register.it
Mail:hostmaster.register.it
Serial:2021020901
Refresh:10800
Retry:3600
Expire:604800
TTL:86400
num Entries:2


Domain:www.ftp.rtsystem.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1624478958
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:12


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1624478973
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:1


Domain:rtsystem.com
Zone-Name:rtsystem.com
Primary:ns1.register.it
Mail:hostmaster.register.it
Serial:2021020901
Refresh:10800
Retry:3600
Expire:604800
TTL:86400
num Entries:2


Domain:mail.rtsystem.com
Zone-Name:rtsystem.com
Primary:ns1.register.it
Mail:hostmaster.register.it
Serial:2021020901
Refresh:10800
Retry:3600
Expire:604800
TTL:86400
num Entries:1


5. Screenshots

Startaddress: https://ftp.rtsystem.com, address used: https://ftp.rtsystem.com/, Screenshot created 2021-06-23 22:10:52 +00:0

 

Mobil (412px x 732px)

 

212 milliseconds

 

Screenshot mobile - https://ftp.rtsystem.com/
Mobil + Landscape (732px x 412px)

 

196 milliseconds

 

Screenshot mobile landscape - https://ftp.rtsystem.com/
Screen (1280px x 1680px)

 

545 milliseconds

 

Screenshot Desktop - https://ftp.rtsystem.com/

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412732
content Size412732

 

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

 

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.3, X25519, and AES_128_GCM.

 

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

 

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://ftp.rtsystem.com/
77.89.52.101
302
https://ftp.rtsystem.com/
Html is minified: 100.00 %
0.094
A
Date: Wed, 23 Jun 2021 20:10:15 GMT
Server: Apache
X-XSS-Protection: 1; mode=block
Location: https://ftp.rtsystem.com/
Content-Length: 209
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://ftp.rtsystem.com/
77.89.52.101
Inline-JavaScript (∑/total): 1/0 Inline-CSS (∑/total): 0/0		200

Html is minified: 113.08 %
Other inline scripts (∑/total): 0/0		4.890
A
small visible content (num chars: 295)
nemesis@rts Home Documentazione Abyss Web Server mini HOWTO Italian DHCP & DNS mini HOWTO PuTTY HOWTO Area Pubblica Server specifications Software links Download Area ⚷ Clienti ⚷ Ospite ⚷ RTS Altro Search Welcome to nemesis @rts     Mappa del sito Connettersi Powered by Typesetter
Date: Wed, 23 Jun 2021 20:10:16 GMT
Server: Apache
Vary: Accept,Accept-Encoding
Content-Encoding: gzip
X-XSS-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Upgrade: h2
Connection: Upgrade, close
ETag: "pzbzpi3tg3oui3t19qskmi1d9kepv8lf5sy"
X-Content-Type-Options: nosniff
Transfer-Encoding: chunked
Content-Type: text/html; charset=utf-8

• http://ftp.rtsystem.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
77.89.52.101
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		302
https://ftp.rtsystem.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0		0.077
A
Visible Content: Found The document has moved here .
Date: Wed, 23 Jun 2021 20:10:22 GMT
Server: Apache
X-XSS-Protection: 1; mode=block
Location: https://ftp.rtsystem.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 278
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://ftp.rtsystem.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		404

Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0		3.530
A
Not Found
Visible Content: Not Found The requested URL was not found on this server.
Date: Wed, 23 Jun 2021 20:10:28 GMT
Server: Apache
X-XSS-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Content-Length: 196
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://77.89.52.101/
77.89.52.101
Inline-JavaScript (∑/total): 1/0 Inline-CSS (∑/total): 0/0		200

Html is minified: 113.08 %
Other inline scripts (∑/total): 0/0		3.590
N
Certificate error: RemoteCertificateNameMismatch
small visible content (num chars: 295)
nemesis@rts Home Documentazione Abyss Web Server mini HOWTO Italian DHCP & DNS mini HOWTO PuTTY HOWTO Area Pubblica Server specifications Software links Download Area ⚷ Clienti ⚷ Ospite ⚷ RTS Altro Search Welcome to nemesis @rts     Mappa del sito Connettersi Powered by Typesetter
Date: Wed, 23 Jun 2021 20:10:23 GMT
Server: Apache
Vary: Accept,Accept-Encoding
Content-Encoding: gzip
X-XSS-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000
Upgrade: h2
Connection: Upgrade, close
ETag: "pzbzpi3tg3oui3t19qskmi1d9kepv8lf5sy"
X-Content-Type-Options: nosniff
Transfer-Encoding: chunked
Content-Type: text/html; charset=utf-8

 

7. Comments


1. General Results, most used to calculate the result

Aname "ftp.rtsystem.com" is subdomain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 57967 (complete: 151507)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: ftp.rtsystem.com has only one ip address.
Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: ftp.rtsystem.com has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: non-www is preferred
AGood: No cookie sent via http.
AGood: every https has a Strict Transport Security Header
AGood: HSTS max-age is long enough, 63072000 seconds = 730 days
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: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
Ahttp://ftp.rtsystem.com/ 77.89.52.101
302
https://ftp.rtsystem.com/
Correct redirect http - https with the same domain name
Nhttps://77.89.52.101/ 77.89.52.101
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain ftp.rtsystem.com, 1 ip addresses, 1 different http results.

2. Header-Checks


3. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
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.ns1.register.it (195.110.124.140), ns2.register.it (195.7.227.1)
AGood (1 - 3.0):: An average of 1.0 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 2 different Name Servers found: ns1.register.it, ns2.register.it, 2 Name Servers included in Delegation: ns1.register.it, ns2.register.it, 2 Name Servers included in 1 Zone definitions: ns1.register.it, ns2.register.it, 1 Name Servers listed in SOA.Primary: ns1.register.it.
AGood: Only one SOA.Primary Name Server found.: ns1.register.it.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.register.it.
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.
AInfo: Ipv4-Subnet-list: 2 Name Servers, 1 different subnets (first Byte): 195., 2 different subnets (first two Bytes): 195.110., 195.7., 2 different subnets (first three Bytes): 195.110.124., 195.7.227.
AGood: Name Server IPv4-addresses from different subnet found:
AGood: Nameserver supports TCP connections: 4 good Nameserver
AGood: Nameserver supports Echo Capitalization: 4 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 4 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 good Nameserver
Nameserver doesn't pass all EDNS-Checks: ns1.register.it: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
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).
https://ftp.rtsystem.com/ 77.89.52.101
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://77.89.52.101/ 77.89.52.101
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://ftp.rtsystem.com/ 77.89.52.101
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://77.89.52.101/ 77.89.52.101
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.
AGood: Every https connection via port 443 supports the http/2 protocol via ALPN.
https://ftp.rtsystem.com/ 77.89.52.101
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.: 1 script elements without defer/async.
https://77.89.52.101/ 77.89.52.101
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.: 1 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. 5 images (type image/png, image/jpg) found without additional GZip. 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. 4 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, 4 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 10 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, 10 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: All img-elements have a valid alt-attribute.: 10 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
https://ftp.rtsystem.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.530 seconds
Warning: 404 needs more then one second
ADuration: 99496 milliseconds, 99.496 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
ftp.rtsystem.com
77.89.52.101
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
ftp.rtsystem.com
77.89.52.101
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
http/2 via ALPN supported 
No SNI required - domain included in main certificate 		Tls.1.2
no Tls.1.1
no Tls.1.0
http/2 via ALPN supported
No SNI required - domain included in main certificate 		Tls.1.2
no Tls.1.1
no Tls.1.0
Chain - too much certificates, don't send root certificates

1CN=rts.link


2CN=R3, O=Let's Encrypt, C=US


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


ftp.rtsystem.com
ftp.rtsystem.com
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

ftp.rtsystem.com
ftp.rtsystem.com
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
http/2 via ALPN supported 
Tls.1.2
no Tls.1.1
no Tls.1.0
http/2 via ALPN supported
 Tls.1.2
no Tls.1.1
no Tls.1.0
Chain - too much certificates, don't send root certificates

1CN=rts.link


2CN=R3, O=Let's Encrypt, C=US


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


77.89.52.101
77.89.52.101
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

77.89.52.101
77.89.52.101
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
http/2 via ALPN supported 
Cert sent without SNI 		Tls.1.2
no Tls.1.1
no Tls.1.0
http/2 via ALPN supported
Cert sent without SNI 		Tls.1.2
no Tls.1.1
no Tls.1.0
Chain - too much certificates, don't send root certificates

1CN=rts.link


2CN=R3, O=Let's Encrypt, C=US


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

 

9. Certificates

1.
1.
CN=rts.link
22.06.2021
20.09.2021
1333 days expired		ftp.rtsystem.com, mail.rtsystem.com, nemesis.rtsystem.com, rts.link, rtsystem.es, rtsystem.eu, www.rts.link, www.rtsystem.es, www.rtsystem.eu - 9 entries
1.
1.
CN=rts.link
22.06.2021

20.09.2021
1333 days expired


ftp.rtsystem.com, mail.rtsystem.com, nemesis.rtsystem.com, rts.link, rtsystem.es, rtsystem.eu, www.rts.link, www.rtsystem.es, www.rtsystem.eu - 9 entries

KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:04ABF8ADB791C1A1BFBCDACE298A88EE6941
Thumbprint:DE7B3C9A2036D91A1C631C596CBB9A6AF80F87D0
SHA256 / Certificate:J54Zwryyr/9PCp5MU/XtNtowbhwk6XormTdpQMyMO2c=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):4c30ccfe6a991a31e968a2c3965d1b6635cf1baa173e24e92ef484991c8c6afb
SHA256 hex / Subject Public Key Information (SPKI):4c30ccfe6a991a31e968a2c3965d1b6635cf1baa173e24e92ef484991c8c6afb
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://r3.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=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 123 days

2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 123 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
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 3672 days

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

04.06.2035
expires in 3672 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:




 

10. Last Certificates - Certificate Transparency Log Check

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

Small Code Update - wait one minute

 

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

Small Code Update - wait one minute

 

11. Html-Content - Entries

Summary

No data found or small Code-update

 

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

Small Code Update - wait one minute

 

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

Small Code update, wait one minute

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.register.it, ns2.register.it

 

QNr.DomainTypeNS used
1
it
NS
e.root-servers.net (2001:500:a8::e)

Answer: a.dns.it, dns.nic.it, m.dns.it, nameserver.cnr.it, r.dns.it, s.dns.it
2
ns1.register.it: 195.110.124.140
NS
a.dns.it (2001:678:12:0:194:0:16:215)

Answer: ns2.register.it
195.7.227.1

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
mail.rtsystem.com
0

no CAA entry found
1
0
ftp.rtsystem.com



1
0
rtsystem.com
0

no CAA entry found
1
0

0

no CAA entry found
1
0
com
0

no CAA entry found
1
0

0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
rtsystem.com
v=spf1 ip4:77.89.52.100 include:spf.protection.outlook.com -all
ok
1
0
ftp.rtsystem.com


1
0
_acme-challenge.ftp.rtsystem.com

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.rtsystem.com

Name Error - The domain name does not exist
1
0
_acme-challenge.ftp.rtsystem.com.rtsystem.com

Name Error - The domain name does not exist
1
0
_acme-challenge.ftp.rtsystem.com.ftp.rtsystem.com

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.rtsystem.com.mail.rtsystem.com

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No Ciphers found

 

18. Portchecks

DomainIPPortDescriptionResultAnswer
ftp.rtsystem.com
77.89.52.101
21
FTP



ftp.rtsystem.com
77.89.52.101
21
FTP



ftp.rtsystem.com
77.89.52.101
22
SSH



ftp.rtsystem.com
77.89.52.101
22
SSH



ftp.rtsystem.com
77.89.52.101
25
SMTP



ftp.rtsystem.com
77.89.52.101
25
SMTP



ftp.rtsystem.com
77.89.52.101
53
DNS



ftp.rtsystem.com
77.89.52.101
53
DNS



ftp.rtsystem.com
77.89.52.101
110
POP3



ftp.rtsystem.com
77.89.52.101
110
POP3



ftp.rtsystem.com
77.89.52.101
143
IMAP



ftp.rtsystem.com
77.89.52.101
143
IMAP



ftp.rtsystem.com
77.89.52.101
465
SMTP (encrypted)



ftp.rtsystem.com
77.89.52.101
465
SMTP (encrypted)



ftp.rtsystem.com
77.89.52.101
587
SMTP (encrypted, submission)



ftp.rtsystem.com
77.89.52.101
587
SMTP (encrypted, submission)



ftp.rtsystem.com
77.89.52.101
993
IMAP (encrypted)



ftp.rtsystem.com
77.89.52.101
993
IMAP (encrypted)



ftp.rtsystem.com
77.89.52.101
995
POP3 (encrypted)



ftp.rtsystem.com
77.89.52.101
995
POP3 (encrypted)



ftp.rtsystem.com
77.89.52.101
1433
MS SQL



ftp.rtsystem.com
77.89.52.101
1433
MS SQL



ftp.rtsystem.com
77.89.52.101
2082
cPanel (http)



ftp.rtsystem.com
77.89.52.101
2082
cPanel (http)



ftp.rtsystem.com
77.89.52.101
2083
cPanel (https)



ftp.rtsystem.com
77.89.52.101
2083
cPanel (https)



ftp.rtsystem.com
77.89.52.101
2086
WHM (http)



ftp.rtsystem.com
77.89.52.101
2086
WHM (http)



ftp.rtsystem.com
77.89.52.101
2087
WHM (https)



ftp.rtsystem.com
77.89.52.101
2087
WHM (https)



ftp.rtsystem.com
77.89.52.101
2089
cPanel Licensing



ftp.rtsystem.com
77.89.52.101
2089
cPanel Licensing



ftp.rtsystem.com
77.89.52.101
2095
cPanel Webmail (http)



ftp.rtsystem.com
77.89.52.101
2095
cPanel Webmail (http)



ftp.rtsystem.com
77.89.52.101
2096
cPanel Webmail (https)



ftp.rtsystem.com
77.89.52.101
2096
cPanel Webmail (https)



ftp.rtsystem.com
77.89.52.101
2222
DirectAdmin (http)



ftp.rtsystem.com
77.89.52.101
2222
DirectAdmin (http)



ftp.rtsystem.com
77.89.52.101
2222
DirectAdmin (https)



ftp.rtsystem.com
77.89.52.101
2222
DirectAdmin (https)



ftp.rtsystem.com
77.89.52.101
3306
mySql



ftp.rtsystem.com
77.89.52.101
3306
mySql



ftp.rtsystem.com
77.89.52.101
5224
Plesk Licensing



ftp.rtsystem.com
77.89.52.101
5224
Plesk Licensing



ftp.rtsystem.com
77.89.52.101
5432
PostgreSQL



ftp.rtsystem.com
77.89.52.101
5432
PostgreSQL



ftp.rtsystem.com
77.89.52.101
8080
Ookla Speedtest (http)



ftp.rtsystem.com
77.89.52.101
8080
Ookla Speedtest (http)



ftp.rtsystem.com
77.89.52.101
8080
Ookla Speedtest (https)



ftp.rtsystem.com
77.89.52.101
8080
Ookla Speedtest (https)



ftp.rtsystem.com
77.89.52.101
8083
VestaCP http



ftp.rtsystem.com
77.89.52.101
8083
VestaCP http



ftp.rtsystem.com
77.89.52.101
8083
VestaCP https



ftp.rtsystem.com
77.89.52.101
8083
VestaCP https



ftp.rtsystem.com
77.89.52.101
8443
Plesk Administration (https)



ftp.rtsystem.com
77.89.52.101
8443
Plesk Administration (https)



ftp.rtsystem.com
77.89.52.101
8447
Plesk Installer + Updates



ftp.rtsystem.com
77.89.52.101
8447
Plesk Installer + Updates



ftp.rtsystem.com
77.89.52.101
8880
Plesk Administration (http)



ftp.rtsystem.com
77.89.52.101
8880
Plesk Administration (http)



ftp.rtsystem.com
77.89.52.101
10000
Webmin (http)



ftp.rtsystem.com
77.89.52.101
10000
Webmin (http)



ftp.rtsystem.com
77.89.52.101
10000
Webmin (https)



ftp.rtsystem.com
77.89.52.101
10000
Webmin (https)



 

 

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