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



T

Timeout

Checked:
24.12.2020 08:00:00


Older results


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
server3.sio4.org
A
144.91.102.142
Nuremberg/Bavaria/Germany (DE) - Contabo GmbH
Hostname: server3.sio4.org
yes
1
0

AAAA
2a02:c207:2033:6544::1
Munich/Bavaria/Germany (DE) - Contabo GmbH

yes


www.server3.sio4.org
A
144.91.102.142
Nuremberg/Bavaria/Germany (DE) - Contabo GmbH
Hostname: server3.sio4.org
yes
1
0

AAAA

yes


*.sio4.org
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.server3.sio4.org
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 26116, Flags 256



Public Key with Algorithm 8, KeyTag 42351, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 10.01.2021, 00:00:00 +, Signature-Inception: 20.12.2020, 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: org
org
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=



1 RRSIG RR to validate DS RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 06.01.2021, 05:00:00 +, Signature-Inception: 24.12.2020, 04:00:00 +, KeyTag 26116, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26116 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 26974, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 34266, Flags 256



Public Key with Algorithm 8, KeyTag 63858, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 900 sec, Signature-expiration: 07.01.2021, 15:32:12 +, Signature-Inception: 17.12.2020, 14:32:12 +, KeyTag 26974, Signer-Name: org



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26974 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest "T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: sio4.org
sio4.org
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 "9478alaji2hkv89crptq18rb821llib0" between the hashed NSEC3-owner "946v09s47ejcih1tk57g8oale6nhdgi6" and the hashed NextOwner "9478rniuqou0t2ctvork1g3kvo9crrlk". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 946v09s47ejcih1tk57g8oale6nhdgi6.org., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 07.01.2021, 15:32:12 +, Signature-Inception: 17.12.2020, 14:32:12 +, KeyTag 63858, Signer-Name: org



DS-Query in the parent zone sends valid NSEC3 RR with the Hash "d6n22mffurrkkhup4jscmntse266m0lq" as Owner. That's the Hash of "org" with the NextHashedOwnerName "d6n6gr81bv9d3ce1vsg6fn5bau7ub671". So that domain name is the Closest Encloser of "sio4.org". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner d6n22mffurrkkhup4jscmntse266m0lq.org., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 14.01.2021, 07:00:05 +, Signature-Inception: 24.12.2020, 06:00:05 +, KeyTag 63858, Signer-Name: org



0 DNSKEY RR found




Zone: server3.sio4.org
server3.sio4.org
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.server3.sio4.org
www.server3.sio4.org
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.server3.sio4.org
  ns1.th.seeweb.it / ns1.th.seeweb.it

server3.sio4.org
  ns1.th.seeweb.it / ns1.th.seeweb.it
217.64.201.170
Milan/Lombardy/Italy (IT) - SEEWEB s.r.l.

sio4.org
  ns1.th.seeweb.it / ns1.th.seeweb.it
217.64.201.170
Milan/Lombardy/Italy (IT) - SEEWEB s.r.l.


  ns2.th.seeweb.it / ns2.th.seeweb.it
95.174.18.147
Frosinone/Latium/Italy (IT) - Seeweb s.r.l


 
2001:4b78:2100:2::1
Frosinone/Latium/Italy (IT) - Seeweb s.r.l

org
  a0.org.afilias-nst.info / ns000b.app12.ams2.afilias-nst.info


  a2.org.afilias-nst.info / LHR4


  b0.org.afilias-nst.org / ns000b.app29.ams2.afilias-nst.info


  b2.org.afilias-nst.org / LHR8


  c0.org.afilias-nst.info / app21.iad1.hosts.meta.redstone.afilias-nst.info-2020121101


  d0.org.afilias-nst.org / ns000b.app22.ams2.afilias-nst.info


4. SOA-Entries


Domain:org
Zone-Name:org
Primary:a0.org.afilias-nst.info
Mail:noc.afilias-nst.info
Serial:2014192218
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:6


Domain:sio4.org
Zone-Name:sio4.org
Primary:ns1.th.seeweb.it
Mail:hostmaster.seeweb.it
Serial:2020020201
Refresh:86400
Retry:7200
Expire:2592000
TTL:172800
num Entries:3


Domain:server3.sio4.org
Zone-Name:sio4.org
Primary:ns1.th.seeweb.it
Mail:hostmaster.seeweb.it
Serial:2020020201
Refresh:86400
Retry:7200
Expire:2592000
TTL:172800
num Entries:1


Domain:www.server3.sio4.org
Zone-Name:sio4.org
Primary:ns1.th.seeweb.it
Mail:hostmaster.seeweb.it
Serial:2020020201
Refresh:86400
Retry:7200
Expire:2592000
TTL:172800
num Entries:1


5. Screenshots

Startaddress: https://server3.sio4.org, address used: https://server3.sio4.org/, Screenshot created 2020-12-24 08:02:24 +00:0

Mobil (412px x 732px)

301 milliseconds

Screenshot mobile - https://server3.sio4.org/
Mobil + Landscape (732px x 412px)

308 milliseconds

Screenshot mobile landscape - https://server3.sio4.org/
Screen (1280px x 1680px)

413 milliseconds

Screenshot Desktop - https://server3.sio4.org/

Mobile- and other Chrome-Checks

widthheight
visual Viewport412716
content Size671716

Fatal: Horizontal scrollbar detected. Content-size width is greater then 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://server3.sio4.org/
144.91.102.142
302
https://server3.sio4.org:443/
Html is minified: 100.00 %
0.050
A
Date: Thu, 24 Dec 2020 07:00:58 GMT
Server: Apache/2.4.38 (Debian)
Location: https://server3.sio4.org:443/
Content-Length: 295
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.server3.sio4.org/
144.91.102.142
302
https://www.server3.sio4.org:443/
Html is minified: 100.00 %
0.054
A
Date: Thu, 24 Dec 2020 07:01:08 GMT
Server: Apache/2.4.38 (Debian)
Location: https://www.server3.sio4.org:443/
Content-Length: 303
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://server3.sio4.org/
2a02:c207:2033:6544::1
-14

10.030
T
Timeout - The operation has timed out

• https://server3.sio4.org/
144.91.102.142 GZip used - 378 / 969 - 60.99 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 163.68 %
2.414
B
small visible content (num chars: 358)
_____ _____ _____ _ ___ / ___| |____ | / ___(_) / | \ `--. ___ _ ____ _____ _ __ / / \ `--. _ ___ / /| | ___ _ __ __ _ `--. \/ _ \ '__\ \ / / _ \ '__| \ \ `--. \ |/ _ \/ /_| | / _ \| '__/ _` | /\__/ / __/ | \ V / __/ | .___/ / _ /\__/ / | (_) \___ | _ | (_) | | | (_| | \____/ \___|_| \_/ \___|_| \____/ (_) \____/|_|\___/ |_/ (_) \___/|_| \__, | __/ | |___/
Date: Thu, 24 Dec 2020 07:01:08 GMT
Server: Apache/2.4.38 (Debian)
Last-Modified: Tue, 28 Jan 2020 17:05:22 GMT
ETag: "3c9-59d363ab4ca68-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 378
Connection: close
Content-Type: text/html

• https://server3.sio4.org/
2a02:c207:2033:6544::1
-14

10.030
T
Timeout - The operation has timed out

• https://www.server3.sio4.org/
144.91.102.142 GZip used - 378 / 969 - 60.99 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 163.68 %
2.396
B
small visible content (num chars: 358)
_____ _____ _____ _ ___ / ___| |____ | / ___(_) / | \ `--. ___ _ ____ _____ _ __ / / \ `--. _ ___ / /| | ___ _ __ __ _ `--. \/ _ \ '__\ \ / / _ \ '__| \ \ `--. \ |/ _ \/ /_| | / _ \| '__/ _` | /\__/ / __/ | \ V / __/ | .___/ / _ /\__/ / | (_) \___ | _ | (_) | | | (_| | \____/ \___|_| \_/ \___|_| \____/ (_) \____/|_|\___/ |_/ (_) \___/|_| \__, | __/ | |___/
Date: Thu, 24 Dec 2020 07:01:21 GMT
Server: Apache/2.4.38 (Debian)
Last-Modified: Tue, 28 Jan 2020 17:05:22 GMT
ETag: "3c9-59d363ab4ca68-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 378
Connection: close
Content-Type: text/html

• https://server3.sio4.org:443/

-14

10.007
T
Timeout - The operation has timed out

• https://www.server3.sio4.org:443/
GZip used - 378 / 969 - 60.99 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 163.68 %
2.477
B
small visible content (num chars: 358)
_____ _____ _____ _ ___ / ___| |____ | / ___(_) / | \ `--. ___ _ ____ _____ _ __ / / \ `--. _ ___ / /| | ___ _ __ __ _ `--. \/ _ \ '__\ \ / / _ \ '__| \ \ `--. \ |/ _ \/ /_| | / _ \| '__/ _` | /\__/ / __/ | \ V / __/ | .___/ / _ /\__/ / | (_) \___ | _ | (_) | | | (_| | \____/ \___|_| \_/ \___|_| \____/ (_) \____/|_|\___/ |_/ (_) \___/|_| \__, | __/ | |___/
Date: Thu, 24 Dec 2020 07:01:57 GMT
Server: Apache/2.4.38 (Debian)
Last-Modified: Tue, 28 Jan 2020 17:05:22 GMT
ETag: "3c9-59d363ab4ca68-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 378
Connection: close
Content-Type: text/html

• http://server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
144.91.102.142
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 100.00 %
0.056
A
Not Found
Visible Content: Not Found The requested URL was not found on this server. Apache/2.4.38 (Debian) Server at server3.sio4.org Port 80
Date: Thu, 24 Dec 2020 07:01:24 GMT
Server: Apache/2.4.38 (Debian)
Content-Length: 278
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a02:c207:2033:6544::1
-14

10.020
T
Timeout - The operation has timed out
Visible Content:

• http://www.server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
144.91.102.142
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 100.00 %
0.050
A
Not Found
Visible Content: Not Found The requested URL was not found on this server. Apache/2.4.38 (Debian) Server at www.server3.sio4.org Port 80
Date: Thu, 24 Dec 2020 07:01:34 GMT
Server: Apache/2.4.38 (Debian)
Content-Length: 282
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://144.91.102.142/
144.91.102.142 GZip used - 378 / 969 - 60.99 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 163.68 %
2.397
N
Certificate error: RemoteCertificateNameMismatch
small visible content (num chars: 358)
_____ _____ _____ _ ___ / ___| |____ | / ___(_) / | \ `--. ___ _ ____ _____ _ __ / / \ `--. _ ___ / /| | ___ _ __ __ _ `--. \/ _ \ '__\ \ / / _ \ '__| \ \ `--. \ |/ _ \/ /_| | / _ \| '__/ _` | /\__/ / __/ | \ V / __/ | .___/ / _ /\__/ / | (_) \___ | _ | (_) | | | (_| | \____/ \___|_| \_/ \___|_| \____/ (_) \____/|_|\___/ |_/ (_) \___/|_| \__, | __/ | |___/
Date: Thu, 24 Dec 2020 07:01:34 GMT
Server: Apache/2.4.38 (Debian)
Last-Modified: Tue, 28 Jan 2020 17:05:22 GMT
ETag: "3c9-59d363ab4ca68-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 378
Connection: close
Content-Type: text/html

• https://[2a02:c207:2033:6544:0000:0000:0000:0001]/
2a02:c207:2033:6544::1
-14

10.010
T
Timeout - The operation has timed out

7. Comments


1. General Results, most used to calculate the result

Aname "server3.sio4.org" is subdomain, public suffix is ".org", top-level-domain is ".org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)", num .org-domains preloaded: 4748 (complete: 131120)
AGood: All ip addresses are public addresses
AGood: Minimal 2 ip addresses per domain name found: server3.sio4.org has 2 different ip addresses (authoritative).
AGood: Ipv4 and Ipv6 addresses per domain name found: server3.sio4.org has 1 ipv4, 1 ipv6 addresses
Warning: Only one ip address found: www.server3.sio4.org 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: www.server3.sio4.org has no ipv6 address.
AGood: destination is https
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):2 complete Content-Type - header (6 urls)
https://server3.sio4.org/ 144.91.102.142


Url with incomplete Content-Type - header - missing charset
https://www.server3.sio4.org:443/


Url with incomplete Content-Type - header - missing charset
https://www.server3.sio4.org/ 144.91.102.142


Url with incomplete Content-Type - header - missing charset
https://144.91.102.142/ 144.91.102.142


Url with incomplete Content-Type - header - missing charset
Bhttps://server3.sio4.org/ 144.91.102.142
200

Missing HSTS-Header
Bhttps://www.server3.sio4.org:443/
200

Missing HSTS-Header
Bhttps://www.server3.sio4.org/ 144.91.102.142
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.
Khttp://server3.sio4.org/ 144.91.102.142, Status 302

http://server3.sio4.org/ 2a02:c207:2033:6544::1, Status -14
Configuration problem - different ip addresses with different status
Khttps://server3.sio4.org/ 144.91.102.142, Status 200

https://server3.sio4.org/ 2a02:c207:2033:6544::1, Status -14
Configuration problem - different ip addresses with different status
Khttp://server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 144.91.102.142, Status 404

http://server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a02:c207:2033:6544::1, Status -14
Configuration problem - different ip addresses with different status
Nhttps://144.91.102.142/ 144.91.102.142
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
AGood: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain server3.sio4.org, 2 ip addresses.
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 www.server3.sio4.org, 1 ip addresses, 1 different http results.

2. Header-Checks (alpha, started 2022-10-23, may be buggy / incomplete)


3. DNS- and NameServer - Checks

AInfo:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 0 Name Servers.
AInfo:: 7 Queries complete, 3 with IPv6, 4 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.
AInfo:: 2 different Name Servers found: ns1.th.seeweb.it, ns2.th.seeweb.it, 2 Name Servers included in Delegation: ns1.th.seeweb.it, ns2.th.seeweb.it, 2 Name Servers included in 1 Zone definitions: ns1.th.seeweb.it, ns2.th.seeweb.it, 1 Name Servers listed in SOA.Primary: ns1.th.seeweb.it.
AGood: Only one SOA.Primary Name Server found.: ns1.th.seeweb.it.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.th.seeweb.it.
AGood: Consistency 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. Ordered list of name servers: ns1.th.seeweb.it, ns2.th.seeweb.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.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 2 different Name Servers found
AGood: Some Name Servers have IPv6 addresses: 1 Name Servers with IPv6 found (1 Name Servers without IPv6)
Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 2 Name Servers, 1 Top Level Domain: it
Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used: seeweb.it
Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: IT
AInfo: Ipv4-Subnet-list: 2 Name Servers, 2 different subnets (first Byte): 217., 95., 2 different subnets (first two Bytes): 217.64., 95.174., 2 different subnets (first three Bytes): 217.64.201., 95.174.18.
AExcellent: Every Name Server IPv4-address starts with an unique Byte.
AInfo: IPv6-Subnet-list: 1 Name Servers with IPv6, 1 different subnets (first block): 2001:, 1 different subnets (first two blocks): 2001:4b78:, 1 different subnets (first three blocks): 2001:4b78:2100:, 1 different subnets (first four blocks): 2001:4b78:2100:0002:
Fatal: All Name Server IPv6 addresses from the same subnet.
AGood: Nameserver supports TCP connections: 1 good Nameserver
AGood: Nameserver supports Echo Capitalization: 1 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 1 good Nameserver
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

http://server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a02:c207:2033:6544::1
-14

Fatal: Check of /.well-known/acme-challenge/random-filename has a timeout. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
http://server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a02:c207:2033:6544::1, Status -14

http://server3.sio4.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 144.91.102.142, Status 404
Fatal: Check of /.well-known/acme-challenge/random-filename has different answers checking ipv6 / ipv4. Ipv6 doesn't have the expected result http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 validation may not work. Checking the validation file in /.well-known/acme-challenge Letsencrypt prefers ipv6. Two options: Remove your ipv6 / AAAA DNS entry or (better) fix your ipv6, so your webserver handles ipv6 correct. Perhaps add "Listen [::]:80". Don't use <VirtualHost ip-address:80>, switch to <VirtualHost *:80>. If you use IIS, check your bindings. Don't select a single ip address. Use this tool to check your raw ipv6 address. Add your domain name in the "Hostname" - field. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: No https + http status 200 with inline CSS / JavaScript found
https://server3.sio4.org/ 144.91.102.142
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.server3.sio4.org:443/
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.server3.sio4.org/ 144.91.102.142
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://144.91.102.142/ 144.91.102.142
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://server3.sio4.org/ 144.91.102.142
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.server3.sio4.org:443/
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.server3.sio4.org/ 144.91.102.142
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://144.91.102.142/ 144.91.102.142
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.
AInfo: No img element found, no alt attribute checked
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: 150557 milliseconds, 150.557 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
server3.sio4.org
144.91.102.142
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
server3.sio4.org
144.91.102.142
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete
1CN=server3.sio4.org

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


www.server3.sio4.org
www.server3.sio4.org
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

www.server3.sio4.org
www.server3.sio4.org
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete
1CN=server3.sio4.org

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


www.server3.sio4.org
144.91.102.142
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

www.server3.sio4.org
144.91.102.142
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete
1CN=server3.sio4.org

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


144.91.102.142
144.91.102.142
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

144.91.102.142
144.91.102.142
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
Chain - incomplete
1CN=server3.sio4.org

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


9. Certificates

1.
1.
CN=server3.sio4.org
23.12.2020
23.03.2021
613 days expired
bottarisistemi.it, byronhotel.it, cosmogonia.org, ilariascala.it, pergraziaricevuta.it, rebeccabottari.it, riusa.eu, server3.sio4.org, staccoexperience.com, staccoexperience.eu, staccoexperience.it, teatroscientifico.com, veramente.org, veronalive.it, www.bottarisistemi.it, www.byronhotel.it, www.cosmogonia.org, www.ilariascala.it, www.pergraziaricevuta.it, www.rebeccabottari.it, www.riusa.eu, www.server3.sio4.org, www.sio4.bottarisistemi.it, www.staccoexperience.com, www.staccoexperience.eu, www.staccoexperience.it, www.teatroscientifico.com, www.veramente.org, www.veronalive.it - 29 entries
1.
1.
CN=server3.sio4.org
23.12.2020

23.03.2021
613 days expired
bottarisistemi.it, byronhotel.it, cosmogonia.org, ilariascala.it, pergraziaricevuta.it, rebeccabottari.it, riusa.eu, server3.sio4.org, staccoexperience.com, staccoexperience.eu, staccoexperience.it, teatroscientifico.com, veramente.org, veronalive.it, www.bottarisistemi.it, www.byronhotel.it, www.cosmogonia.org, www.ilariascala.it, www.pergraziaricevuta.it, www.rebeccabottari.it, www.riusa.eu, www.server3.sio4.org, www.sio4.bottarisistemi.it, www.staccoexperience.com, www.staccoexperience.eu, www.staccoexperience.it, www.teatroscientifico.com, www.veramente.org, www.veronalive.it - 29 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:033F2396C5C8FA7802EBF7AFDA86F0FF2FAF
Thumbprint:63644EB6BF2C000F72A36BA9E1275D47A4F4ADB3
SHA256 / Certificate:XKOVAY6Q53WUnTCSbeK/z++T3zIQ/1MAA9jTE8GxKTM=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):add4349e7bb36936f0ba2d60cebdf35fff44680d54ea11fd4f1db4ab63915d62
SHA256 hex / Subject Public Key Information (SPKI):add4349e7bb36936f0ba2d60cebdf35fff44680d54ea11fd4f1db4ab63915d62
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
07.10.2020
29.09.2021
423 days expired


2.
CN=R3, O=Let's Encrypt, C=US
07.10.2020

29.09.2021
423 days expired


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:400175048314A4C8218C84A90C16CDDF
Thumbprint:48504E974C0DAC5B5CD476C8202274B24C8C7172
SHA256 / Certificate:cwwb3NhfV85dwLunM+XxulqSWyp3HWQKJvekVCJNrTs=
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:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
422 days expired


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000

30.09.2021
422 days expired


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:44AFB080D6A327BA893039862EF8406B
Thumbprint:DAC9024F54D8F6DF94935FB1732638CA6AD77C13
SHA256 / Certificate:BocmAzGnJAPZCfEF5pvPDTLhvSST/8bZIG0RvNZ3Bzk=
SHA256 hex / Cert (DANE * 0 1):0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
SHA256 hex / PublicKey (DANE * 1 1):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
SHA256 hex / Subject Public Key Information (SPKI):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
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

No Html-Content entries found. Only checked if https + status 200/401/403/404


12. Nameserver - IP-Adresses

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

QNr.DomainTypeNS used
1
it
NS
a.root-servers.net (2001:503:ba3e::2:30)

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

Answer: dns.seeweb.it, dns2.seeweb.it

Answer: dns.seeweb.it
212.25.160.10

Answer: dns2.seeweb.it
2001:4b78::22, 85.94.194.108
3
ns2.th.seeweb.it
NS
a.dns.it (2001:678:12:0:194:0:16:215)

Answer: dns.seeweb.it, dns2.seeweb.it

Answer: dns.seeweb.it
212.25.160.10

Answer: dns2.seeweb.it
2001:4b78::22, 85.94.194.108
4
ns1.th.seeweb.it: No A record found
A
dns.seeweb.it (212.25.160.10)
5
ns1.th.seeweb.it: No AAAA record found
AAAA
dns.seeweb.it (212.25.160.10)
6
ns2.th.seeweb.it: No A record found
A
dns.seeweb.it (212.25.160.10)
7
ns2.th.seeweb.it: No AAAA record found
AAAA
dns.seeweb.it (212.25.160.10)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.server3.sio4.org
0

no CAA entry found
1
0
server3.sio4.org
0

no CAA entry found
1
0
sio4.org
0

no CAA entry found
1
0
org



6
6


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
sio4.org
v=spf1 mx a:server.sio4.org ip4:91.205.175.213 ~all
ok
1
0
server3.sio4.org

ok
1
0
www.server3.sio4.org

ok
1
0
_acme-challenge.server3.sio4.org

Name Error - The domain name does not exist
1
0
_acme-challenge.www.server3.sio4.org

Name Error - The domain name does not exist
1
0
_acme-challenge.server3.sio4.org.sio4.org

Name Error - The domain name does not exist
1
0
_acme-challenge.server3.sio4.org.server3.sio4.org

Name Error - The domain name does not exist
1
0
_acme-challenge.www.server3.sio4.org.server3.sio4.org

Name Error - The domain name does not exist
1
0
_acme-challenge.www.server3.sio4.org.www.server3.sio4.org

Name Error - The domain name does not exist
1
0


15. DomainService - Entries (SSHFP Check is new - 2022-09-24, may be incomplete, alpha, some results are required)

No DomainServiceEntries entries found



16. Cipher Suites

No Ciphers found


17. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.



Permalink: https://check-your-website.server-daten.de/?i=e968a245-1e44-4a67-9983-456ca43e410e


Last Result: https://check-your-website.server-daten.de/?q=server3.sio4.org - 2020-12-24 08:00:00


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