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



L

Loop - it's impossible to use this site

Checked:
26.06.2020 19:16:20


Older results


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
openbooksocial.com
A
172.104.239.204
Frankfurt am Main/Hesse/Germany (DE) - Linode, LLC
Hostname: li1815-204.members.linode.com
yes
1
0

AAAA
2a01:7e01::f03c:92ff:fe03:3d9b
Frankfurt am Main/Hesse/Germany (DE) - Linode, LLC

yes


www.openbooksocial.com
A
172.104.239.204
Frankfurt am Main/Hesse/Germany (DE) - Linode, LLC
Hostname: li1815-204.members.linode.com
yes
1
0

AAAA
2a01:7e01::f03c:92ff:fe03:3d9b
Frankfurt am Main/Hesse/Germany (DE) - Linode, LLC

yes


*.openbooksocial.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 20326, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 46594, Flags 256



Public Key with Algorithm 8, KeyTag 48903, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.07.2020, 00:00:00 +, Signature-Inception: 20.06.2020, 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: com
com
1 DS RR in the parent zone found



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



1 RRSIG RR to validate DS RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 09.07.2020, 05:00:00 +, Signature-Inception: 26.06.2020, 04:00:00 +, KeyTag 48903, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 48903 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 39844, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 09.07.2020, 18:24:21 +, Signature-Inception: 24.06.2020, 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: openbooksocial.com
openbooksocial.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 "ot5rf5r9v58mnlb4mjtgov3jt2d1m3rv" between the hashed NSEC3-owner "ot5rejhijif5qj37sqj39qpp5hi6t45f" and the hashed NextOwner "ot5rjdrltf7452bp4piphsgh823jnqoj". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner ot5rejhijif5qj37sqj39qpp5hi6t45f.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 01.07.2020, 05:03:25 +, Signature-Inception: 24.06.2020, 03:53:25 +, KeyTag 39844, 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 "openbooksocial.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: 30.06.2020, 04:42:18 +, Signature-Inception: 23.06.2020, 03:32:18 +, KeyTag 39844, Signer-Name: com



0 DNSKEY RR found




Zone: www.openbooksocial.com
www.openbooksocial.com
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.openbooksocial.com
  ns1.linode.com / 67m20

openbooksocial.com
  ns1.linode.com / 67m7
162.159.27.72
Newark/New Jersey/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1a63
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns2.linode.com / 67m2
162.159.24.39
Newark/New Jersey/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1827
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns3.linode.com / 67m29
162.159.25.129
Newark/New Jersey/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1981
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns4.linode.com / 67m17
162.159.26.99
Newark/New Jersey/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1b48
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns5.linode.com / 67m6
162.159.24.25
Newark/New Jersey/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1819
Columbus/North Carolina/United States (US) - CLOUDFLARE

com
  a.gtld-servers.net


  b.gtld-servers.net


  c.gtld-servers.net


  d.gtld-servers.net


  e.gtld-servers.net


  f.gtld-servers.net


  g.gtld-servers.net


  h.gtld-servers.net


  i.gtld-servers.net


  j.gtld-servers.net


  k.gtld-servers.net


  l.gtld-servers.net


  m.gtld-servers.net


4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1593191760
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:9


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1593191775
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:4


Domain:openbooksocial.com
Zone-Name:openbooksocial.com
Primary:ns1.linode.com
Mail:openbookemail.gmail.com
Serial:2021000038
Refresh:14400
Retry:14400
Expire:1209600
TTL:86400
num Entries:10


Domain:www.openbooksocial.com
Zone-Name:openbooksocial.com
Primary:ns1.linode.com
Mail:openbookemail.gmail.com
Serial:2021000038
Refresh:14400
Retry:14400
Expire:1209600
TTL:86400
num Entries:1


5. Screenshots

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://openbooksocial.com/
172.104.239.204
301
https://openbooksocial.com/
Html is minified: 108.48 %
0.040
A
Server: nginx/1.17.10 (Ubuntu)
Date: Fri, 26 Jun 2020 17:17:07 GMT
Content-Type: text/html
Content-Length: 179
Connection: close
Location: https://openbooksocial.com/

• http://openbooksocial.com/
2a01:7e01::f03c:92ff:fe03:3d9b
-14

10.020
T
Timeout - The operation has timed out

• http://www.openbooksocial.com/
172.104.239.204 GZip used - 384 / 612 - 37.25 %
200

Html is minified: 129.94 %
0.036
H
small visible content (num chars: 273)
Welcome to nginx! If you see this page, the nginx web server is successfully installed and working. Further configuration is required. For online documentation and support please refer to nginx.org . Commercial support is available at nginx.com . Thank you for using nginx.
Server: nginx/1.17.10 (Ubuntu)
Date: Fri, 26 Jun 2020 17:17:17 GMT
Content-Type: text/html
Last-Modified: Sun, 21 Jun 2020 14:53:50 GMT
Transfer-Encoding: chunked
Connection: close
ETag: W/"5eef747e-264"
Content-Encoding: gzip

• http://www.openbooksocial.com/
2a01:7e01::f03c:92ff:fe03:3d9b
-14

10.010
T
Timeout - The operation has timed out

• https://openbooksocial.com/
172.104.239.204
301
https://openbooksocial.com/
Html is minified: 108.48 %
2.220
L
Server: nginx/1.17.10 (Ubuntu)
Date: Fri, 26 Jun 2020 17:17:28 GMT
Content-Type: text/html
Content-Length: 179
Connection: close
Location: https://openbooksocial.com/

• https://www.openbooksocial.com/
172.104.239.204
301
https://www.openbooksocial.com/
Html is minified: 108.48 %
2.200
L
Certificate error: RemoteCertificateNameMismatch
Server: nginx/1.17.10 (Ubuntu)
Date: Fri, 26 Jun 2020 17:17:40 GMT
Content-Type: text/html
Content-Length: 179
Connection: close
Location: https://www.openbooksocial.com/

• https://openbooksocial.com/
2a01:7e01::f03c:92ff:fe03:3d9b
-14

10.004
T
Timeout - The operation has timed out

• https://www.openbooksocial.com/
2a01:7e01::f03c:92ff:fe03:3d9b
-14

10.024
T
Timeout - The operation has timed out

• http://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
172.104.239.204
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 108.48 %
0.036
A
Visible Content: 301 Moved Permanently nginx/1.17.10 (Ubuntu)
Server: nginx/1.17.10 (Ubuntu)
Date: Fri, 26 Jun 2020 17:17:53 GMT
Content-Type: text/html
Content-Length: 179
Connection: close
Location: https://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• http://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a01:7e01::f03c:92ff:fe03:3d9b
-14

10.024
T
Timeout - The operation has timed out
Visible Content:

• http://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
172.104.239.204 GZip used - 124 / 163 - 23.93 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 109.40 %
0.037
A
Not Found
Visible Content: 404 Not Found nginx/1.17.10 (Ubuntu)
Server: nginx/1.17.10 (Ubuntu)
Date: Fri, 26 Jun 2020 17:18:03 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: close
Content-Encoding: gzip

• http://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a01:7e01::f03c:92ff:fe03:3d9b
-14

10.023
T
Timeout - The operation has timed out
Visible Content:

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

-14

10.027
T
Timeout - The operation has timed out
Visible Content:

• https://172.104.239.204/
172.104.239.204
301
https://172.104.239.204/
Html is minified: 108.48 %
2.210
L
Certificate error: RemoteCertificateNameMismatch
Server: nginx/1.17.10 (Ubuntu)
Date: Fri, 26 Jun 2020 17:18:13 GMT
Content-Type: text/html
Content-Length: 179
Connection: close
Location: https://172.104.239.204/

• https://[2a01:7e01::f03c:92ff:fe03:3d9b]/
2a01:7e01::f03c:92ff:fe03:3d9b
-14

10.023
T
Timeout - The operation has timed out

7. Comments


1. General Results, most used to calculate the result

Aname "openbooksocial.com" is domain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services"
Agood: All ip addresses are public addresses
AGood: Minimal 2 ip addresses per domain name found: openbooksocial.com has 2 different ip addresses (authoritative).
AGood: Minimal 2 ip addresses per domain name found: www.openbooksocial.com has 2 different ip addresses (authoritative).
AGood: Ipv4 and Ipv6 addresses per domain name found: openbooksocial.com has 1 ipv4, 1 ipv6 addresses
AGood: Ipv4 and Ipv6 addresses per domain name found: www.openbooksocial.com has 1 ipv4, 1 ipv6 addresses
Agood: No asked Authoritative Name Server had a timeout
Agood - only one version with Http-Status 200
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):0 complete Content-Type - header (2 urls)
http://www.openbooksocial.com/ 172.104.239.204


Url with incomplete Content-Type - header - missing charset
http://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 172.104.239.204


Url with incomplete Content-Type - header - missing charset
Ahttp://openbooksocial.com/ 172.104.239.204
301
https://openbooksocial.com/
correct redirect http - https with the same domain name
Bhttps://openbooksocial.com/ 172.104.239.204
301

Missing HSTS-Header
Bhttps://www.openbooksocial.com/ 172.104.239.204
301

Missing HSTS-Header
Bhttps://172.104.239.204/ 172.104.239.204
301

Missing HSTS-Header
Hfatal error: No https - result with http-status 200, no encryption
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.
Khttp://openbooksocial.com/ 172.104.239.204, Status 301

http://openbooksocial.com/ 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14
configuration problem - different ip addresses with different status
Khttp://www.openbooksocial.com/ 172.104.239.204, Status 200

http://www.openbooksocial.com/ 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14
configuration problem - different ip addresses with different status
Khttps://openbooksocial.com/ 172.104.239.204, Status 301

https://openbooksocial.com/ 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14
configuration problem - different ip addresses with different status
Khttps://www.openbooksocial.com/ 172.104.239.204, Status 301

https://www.openbooksocial.com/ 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14
configuration problem - different ip addresses with different status
Khttp://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 172.104.239.204, Status 301

http://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14
configuration problem - different ip addresses with different status
Khttp://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 172.104.239.204, Status 404

http://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14
configuration problem - different ip addresses with different status
Lhttps://openbooksocial.com/ 172.104.239.204
301
https://openbooksocial.com/
Error direct loop
Lhttps://www.openbooksocial.com/ 172.104.239.204
301
https://www.openbooksocial.com/
Error direct loop
Lhttps://172.104.239.204/ 172.104.239.204
301
https://172.104.239.204/
Error direct loop
Nhttps://www.openbooksocial.com/ 172.104.239.204
301
https://www.openbooksocial.com/
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://172.104.239.204/ 172.104.239.204
301
https://172.104.239.204/
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Fatal: More then one ip address per domain name found, but checking all ip addresses different http status found.: Domain openbooksocial.com, 2 ip addresses, 2 different http results.
Fatal: More then one ip address per domain name found, but checking all ip addresses different http status found.: Domain www.openbooksocial.com, 2 ip addresses, 2 different http results.

2. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 5 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.linode.com (162.159.27.72, 2400:cb00:2049:1::a29f:1a63), ns2.linode.com (162.159.24.39, 2400:cb00:2049:1::a29f:1827), ns3.linode.com (162.159.25.129, 2400:cb00:2049:1::a29f:1981), ns4.linode.com (162.159.26.99, 2400:cb00:2049:1::a29f:1b48), ns5.linode.com (162.159.24.25, 2400:cb00:2049:1::a29f:1819)
AGood (1 - 3.0):: An average of 0.4 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 5 different Name Servers found: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com, 5 Name Servers included in Delegation: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com, 5 Name Servers included in 1 Zone definitions: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com, 1 Name Servers listed in SOA.Primary: ns1.linode.com.
AGood: Only one SOA.Primary Name Server found.: ns1.linode.com.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.linode.com.
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.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com
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: 5 different Name Servers found
AGood: All name servers have ipv4- and ipv6-addresses.: 5 different Name Servers found
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.: 5 Name Servers, 1 Top Level Domain: com
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: linode.com
Warning: All Name Servers from the same Country / IP location.: 5 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 5 Name Servers, 1 different subnets (first Byte): 162., 1 different subnets (first two Bytes): 162.159., 4 different subnets (first three Bytes): 162.159.24., 162.159.25., 162.159.26., 162.159.27.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 5 Name Servers with IPv6, 1 different subnets (first block): 2400:, 1 different subnets (first two blocks): 2400:cb00:, 1 different subnets (first three blocks): 2400:cb00:2049:, 1 different subnets (first four blocks): 2400:cb00:2049:0001:
Fatal: All Name Server IPv6 addresses from the same subnet.
AGood: Nameserver supports TCP connections: 10 good Nameserver
AGood: Nameserver supports Echo Capitalization: 10 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 10 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 10 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.

3. Content- and Performance-critical Checks

http://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:7e01::f03c:92ff:fe03:3d9b
-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://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:7e01::f03c:92ff:fe03:3d9b
-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.
https://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
-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://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14

http://openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 172.104.239.204, Status 301
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.
http://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:7e01::f03c:92ff:fe03:3d9b, Status -14

http://www.openbooksocial.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 172.104.239.204, 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.
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: 156617 milliseconds, 156.617 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
openbooksocial.com
172.104.239.204
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
openbooksocial.com
172.104.239.204
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
no Tls.1.1
no Tls.1.0
no http/2 via ALPN
No SNI required - domain included in main certificate
Tls.1.2
no Tls.1.1
no Tls.1.0
Chain (complete)
1CN=openbooksocial.com

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


www.openbooksocial.com
172.104.239.204
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

www.openbooksocial.com
172.104.239.204
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
no Tls.1.1
no Tls.1.0
no http/2 via ALPN
Tls.1.2
no Tls.1.1
no Tls.1.0
Chain (complete)
1CN=openbooksocial.com

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


172.104.239.204
172.104.239.204
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

172.104.239.204
172.104.239.204
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
no Tls.1.1
no Tls.1.0
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
no Tls.1.1
no Tls.1.0
Chain (complete)
1CN=openbooksocial.com

2CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US


9. Certificates

1.
1.
CN=openbooksocial.com
26.06.2020
24.09.2020
0 days expired
openbooksocial.com - 1 entry
1.
1.
CN=openbooksocial.com
26.06.2020

24.09.2020
0 days expired
openbooksocial.com - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:037BC37629FF464AE51D935505D955995B1C
Thumbprint:8AAA97EB3A1617FF2E01C155113E4B2E7EADE2AF
SHA256 / Certificate:Hi6aGTLyhnIKM9qjSVwsAKlQI300vioTo1IXxiwyBIM=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):7117ade6ea28de6f546ecd012a4daf2da42f33fc12ef7c63601bb632e55762f3
SHA256 hex / Subject Public Key Information (SPKI):9fe7ddd36e43a80b01bf7844a3a6c42b2597b0a2d86775030d76fc81f42efa32
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://ocsp.int-x3.letsencrypt.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=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016
17.03.2021
expires in 174 days


2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016

17.03.2021
expires in 174 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:0A0141420000015385736A0B85ECA708
Thumbprint:E6A3B45B062D509B3382282D196EFE97D5956CCB
SHA256 / Certificate:JYR9Zo608E/dQLErawdAxWfafQJDCOtsLJb+QdneIY0=
SHA256 hex / Cert (DANE * 0 1):25847d668eb4f04fdd40b12b6b0740c567da7d024308eb6c2c96fe41d9de218d
SHA256 hex / PublicKey (DANE * 1 1):60b87575447dcba2a36b7d11ac09fb24a9db406fee12d2cc90180517616e8a18
SHA256 hex / Subject Public Key Information (SPKI):cbb93d32de628874a3ecfb92affadc97f1b795f84cc6f24221a089dee1aa25ad
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://isrg.trustid.ocsp.identrust.com
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
expires in 371 days


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

30.09.2021
expires in 371 days


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):29cc40db5e2de462a311cbbafaa1dc466960002335ecdf3317f2cd05c1d0bedf
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)

No CertSpotter - CT-Log entries found


2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > 2019 are listed

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0 /0 new
0
1

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
3004299727
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-06-26 02:02:42
2020-09-24 02:02:42
openbooksocial.com
1 entries



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.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com

QNr.DomainTypeNS used
1
com
NS
b.root-servers.net (2001:500:200::b)

Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
2
ns1.linode.com: 162.159.27.72, 2400:cb00:2049:1::a29f:1a63
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns2.linode.com
162.159.24.39, 2400:cb00:2049:1::a29f:1827

Answer: ns3.linode.com
162.159.25.129, 2400:cb00:2049:1::a29f:1981

Answer: ns4.linode.com
162.159.26.99, 2400:cb00:2049:1::a29f:1b48

Answer: ns5.linode.com
162.159.24.25, 2400:cb00:2049:1::a29f:1819


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.openbooksocial.com
0

no CAA entry found
1
0
openbooksocial.com
0

no CAA entry found
1
0
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
openbooksocial.com

ok
1
0
www.openbooksocial.com

ok
1
0
_acme-challenge.openbooksocial.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.openbooksocial.com

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

Name Error - The domain name does not exist
1
0
_acme-challenge.www.openbooksocial.com.openbooksocial.com

Name Error - The domain name does not exist
1
0
_acme-challenge.www.openbooksocial.com.www.openbooksocial.com

Name Error - The domain name does not exist
1
0


15. Portchecks

Domain or IPPortDescriptionResultAnswer
openbooksocial.com
21
FTP



openbooksocial.com
21
FTP



openbooksocial.com
22
SSH
open
SSH-2.0-OpenSSH_8.2p1 Ubuntu-4

openbooksocial.com
22
SSH
open
SSH-2.0-OpenSSH_8.2p1 Ubuntu-4

openbooksocial.com
25
SMTP



openbooksocial.com
25
SMTP



openbooksocial.com
53
DNS



openbooksocial.com
53
DNS



openbooksocial.com
110
POP3



openbooksocial.com
110
POP3



openbooksocial.com
143
IMAP



openbooksocial.com
143
IMAP



openbooksocial.com
465
SMTP (encrypted)



openbooksocial.com
465
SMTP (encrypted)



openbooksocial.com
587
SMTP (encrypted, submission)



openbooksocial.com
587
SMTP (encrypted, submission)



openbooksocial.com
993
IMAP (encrypted)



openbooksocial.com
993
IMAP (encrypted)



openbooksocial.com
995
POP3 (encrypted)



openbooksocial.com
995
POP3 (encrypted)



openbooksocial.com
1433
MS SQL



openbooksocial.com
1433
MS SQL



openbooksocial.com
2082
cPanel (http)



openbooksocial.com
2082
cPanel (http)



openbooksocial.com
2083
cPanel (https)



openbooksocial.com
2083
cPanel (https)



openbooksocial.com
2086
WHM (http)



openbooksocial.com
2086
WHM (http)



openbooksocial.com
2087
WHM (https)



openbooksocial.com
2087
WHM (https)



openbooksocial.com
2089
cPanel Licensing



openbooksocial.com
2089
cPanel Licensing



openbooksocial.com
2095
cPanel Webmail (http)



openbooksocial.com
2095
cPanel Webmail (http)



openbooksocial.com
2096
cPanel Webmail (https)



openbooksocial.com
2096
cPanel Webmail (https)



openbooksocial.com
2222
DirectAdmin (http)



openbooksocial.com
2222
DirectAdmin (http)



openbooksocial.com
2222
DirectAdmin (https)



openbooksocial.com
2222
DirectAdmin (https)



openbooksocial.com
3306
mySql



openbooksocial.com
3306
mySql



openbooksocial.com
5224
Plesk Licensing



openbooksocial.com
5224
Plesk Licensing



openbooksocial.com
5432
PostgreSQL



openbooksocial.com
5432
PostgreSQL



openbooksocial.com
8080
Ookla Speedtest (http)



openbooksocial.com
8080
Ookla Speedtest (http)



openbooksocial.com
8080
Ookla Speedtest (https)



openbooksocial.com
8080
Ookla Speedtest (https)



openbooksocial.com
8083
VestaCP http



openbooksocial.com
8083
VestaCP http



openbooksocial.com
8083
VestaCP https



openbooksocial.com
8083
VestaCP https



openbooksocial.com
8443
Plesk Administration (https)



openbooksocial.com
8443
Plesk Administration (https)



openbooksocial.com
8447
Plesk Installer + Updates



openbooksocial.com
8447
Plesk Installer + Updates



openbooksocial.com
8880
Plesk Administration (http)



openbooksocial.com
8880
Plesk Administration (http)



openbooksocial.com
10000
Webmin (http)



openbooksocial.com
10000
Webmin (http)



openbooksocial.com
10000
Webmin (https)



openbooksocial.com
10000
Webmin (https)



www.openbooksocial.com
21
FTP



www.openbooksocial.com
21
FTP



www.openbooksocial.com
22
SSH
open
SSH-2.0-OpenSSH_8.2p1 Ubuntu-4

www.openbooksocial.com
22
SSH
open
SSH-2.0-OpenSSH_8.2p1 Ubuntu-4

www.openbooksocial.com
25
SMTP



www.openbooksocial.com
25
SMTP



www.openbooksocial.com
53
DNS



www.openbooksocial.com
53
DNS



www.openbooksocial.com
110
POP3



www.openbooksocial.com
110
POP3



www.openbooksocial.com
143
IMAP



www.openbooksocial.com
143
IMAP



www.openbooksocial.com
465
SMTP (encrypted)



www.openbooksocial.com
465
SMTP (encrypted)



www.openbooksocial.com
587
SMTP (encrypted, submission)



www.openbooksocial.com
587
SMTP (encrypted, submission)



www.openbooksocial.com
993
IMAP (encrypted)



www.openbooksocial.com
993
IMAP (encrypted)



www.openbooksocial.com
995
POP3 (encrypted)



www.openbooksocial.com
995
POP3 (encrypted)



www.openbooksocial.com
1433
MS SQL



www.openbooksocial.com
1433
MS SQL



www.openbooksocial.com
2082
cPanel (http)



www.openbooksocial.com
2082
cPanel (http)



www.openbooksocial.com
2083
cPanel (https)



www.openbooksocial.com
2083
cPanel (https)



www.openbooksocial.com
2086
WHM (http)



www.openbooksocial.com
2086
WHM (http)



www.openbooksocial.com
2087
WHM (https)



www.openbooksocial.com
2087
WHM (https)



www.openbooksocial.com
2089
cPanel Licensing



www.openbooksocial.com
2089
cPanel Licensing



www.openbooksocial.com
2095
cPanel Webmail (http)



www.openbooksocial.com
2095
cPanel Webmail (http)



www.openbooksocial.com
2096
cPanel Webmail (https)



www.openbooksocial.com
2096
cPanel Webmail (https)



www.openbooksocial.com
2222
DirectAdmin (http)



www.openbooksocial.com
2222
DirectAdmin (http)



www.openbooksocial.com
2222
DirectAdmin (https)



www.openbooksocial.com
2222
DirectAdmin (https)



www.openbooksocial.com
3306
mySql



www.openbooksocial.com
3306
mySql



www.openbooksocial.com
5224
Plesk Licensing



www.openbooksocial.com
5224
Plesk Licensing



www.openbooksocial.com
5432
PostgreSQL



www.openbooksocial.com
5432
PostgreSQL



www.openbooksocial.com
8080
Ookla Speedtest (http)



www.openbooksocial.com
8080
Ookla Speedtest (http)



www.openbooksocial.com
8080
Ookla Speedtest (https)



www.openbooksocial.com
8080
Ookla Speedtest (https)



www.openbooksocial.com
8083
VestaCP http



www.openbooksocial.com
8083
VestaCP http



www.openbooksocial.com
8083
VestaCP https



www.openbooksocial.com
8083
VestaCP https



www.openbooksocial.com
8443
Plesk Administration (https)



www.openbooksocial.com
8443
Plesk Administration (https)



www.openbooksocial.com
8447
Plesk Installer + Updates



www.openbooksocial.com
8447
Plesk Installer + Updates



www.openbooksocial.com
8880
Plesk Administration (http)



www.openbooksocial.com
8880
Plesk Administration (http)



www.openbooksocial.com
10000
Webmin (http)



www.openbooksocial.com
10000
Webmin (http)



www.openbooksocial.com
10000
Webmin (https)



www.openbooksocial.com
10000
Webmin (https)



172.104.239.204
21
FTP



172.104.239.204
21
FTP



172.104.239.204
22
SSH
open
SSH-2.0-OpenSSH_8.2p1 Ubuntu-4

172.104.239.204
22
SSH
open
SSH-2.0-OpenSSH_8.2p1 Ubuntu-4

172.104.239.204
25
SMTP



172.104.239.204
25
SMTP



172.104.239.204
53
DNS



172.104.239.204
53
DNS



172.104.239.204
110
POP3



172.104.239.204
110
POP3



172.104.239.204
143
IMAP



172.104.239.204
143
IMAP



172.104.239.204
465
SMTP (encrypted)



172.104.239.204
465
SMTP (encrypted)



172.104.239.204
587
SMTP (encrypted, submission)



172.104.239.204
587
SMTP (encrypted, submission)



172.104.239.204
993
IMAP (encrypted)



172.104.239.204
993
IMAP (encrypted)



172.104.239.204
995
POP3 (encrypted)



172.104.239.204
995
POP3 (encrypted)



172.104.239.204
1433
MS SQL



172.104.239.204
1433
MS SQL



172.104.239.204
2082
cPanel (http)



172.104.239.204
2082
cPanel (http)



172.104.239.204
2083
cPanel (https)



172.104.239.204
2083
cPanel (https)



172.104.239.204
2086
WHM (http)



172.104.239.204
2086
WHM (http)



172.104.239.204
2087
WHM (https)



172.104.239.204
2087
WHM (https)



172.104.239.204
2089
cPanel Licensing



172.104.239.204
2089
cPanel Licensing



172.104.239.204
2095
cPanel Webmail (http)



172.104.239.204
2095
cPanel Webmail (http)



172.104.239.204
2096
cPanel Webmail (https)



172.104.239.204
2096
cPanel Webmail (https)



172.104.239.204
2222
DirectAdmin (http)



172.104.239.204
2222
DirectAdmin (http)



172.104.239.204
2222
DirectAdmin (https)



172.104.239.204
2222
DirectAdmin (https)



172.104.239.204
3306
mySql



172.104.239.204
3306
mySql



172.104.239.204
5224
Plesk Licensing



172.104.239.204
5224
Plesk Licensing



172.104.239.204
5432
PostgreSQL



172.104.239.204
5432
PostgreSQL



172.104.239.204
8080
Ookla Speedtest (http)



172.104.239.204
8080
Ookla Speedtest (http)



172.104.239.204
8080
Ookla Speedtest (https)



172.104.239.204
8080
Ookla Speedtest (https)



172.104.239.204
8083
VestaCP http



172.104.239.204
8083
VestaCP http



172.104.239.204
8083
VestaCP https



172.104.239.204
8083
VestaCP https



172.104.239.204
8443
Plesk Administration (https)



172.104.239.204
8443
Plesk Administration (https)



172.104.239.204
8447
Plesk Installer + Updates



172.104.239.204
8447
Plesk Installer + Updates



172.104.239.204
8880
Plesk Administration (http)



172.104.239.204
8880
Plesk Administration (http)



172.104.239.204
10000
Webmin (http)



172.104.239.204
10000
Webmin (http)



172.104.239.204
10000
Webmin (https)



172.104.239.204
10000
Webmin (https)





Permalink: https://check-your-website.server-daten.de/?i=e293d73f-a40a-44e8-a7e4-ef3583e56126


Last Result: https://check-your-website.server-daten.de/?q=openbooksocial.com - 2020-06-26 19:16:20


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