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



E

Wrong redirect http ⇒ https with new domain name

Checked:
03.04.2021 15:38:39


Older results


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
api.bookclubz.com
A
162.243.186.159
Clifton/New Jersey/United States (US) - DigitalOcean, LLC
Hostname: api.bookclubz.com
yes
1
0

AAAA
2604:a880:800:10::3a61:a001
Clifton/New Jersey/United States (US) - DigitalOcean, LLC

yes


www.api.bookclubz.com
A
162.243.186.159
Clifton/New Jersey/United States (US) - DigitalOcean, LLC
Hostname: api.bookclubz.com
yes
1
0

AAAA
2604:a880:800:10::3a61:a001
Clifton/New Jersey/United States (US) - DigitalOcean, LLC

yes


*.bookclubz.com
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.api.bookclubz.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 42351, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.04.2021, 00:00:00 +, Signature-Inception: 01.04.2021, 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=



1 RRSIG RR to validate DS RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 16.04.2021, 05:00:00 +, Signature-Inception: 03.04.2021, 04:00:00 +, 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 58540, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 15.04.2021, 18:24:21 +, Signature-Inception: 31.03.2021, 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: bookclubz.com
bookclubz.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 "i94l6o5h9q9du8uvc81nogqndlpphg4n" between the hashed NSEC3-owner "i94l299gon8pgvln7k1et1a1k67cmtcq" and the hashed NextOwner "i94l8tm3etsi6b6pk91tr1pb31gp5tek". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner i94l299gon8pgvln7k1et1a1k67cmtcq.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 09.04.2021, 04:21:15 +, Signature-Inception: 02.04.2021, 03:11:15 +, KeyTag 58540, 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 "bookclubz.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: 10.04.2021, 04:23:48 +, Signature-Inception: 03.04.2021, 03:13:48 +, KeyTag 58540, Signer-Name: com



0 DNSKEY RR found




Zone: api.bookclubz.com
api.bookclubz.com
0 DS RR in the parent zone found



0 DNSKEY RR found




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


3. Name Servers

DomainNameserverNS-IP
www.api.bookclubz.com
  ns1.dnsimple.com / 67m33

api.bookclubz.com
  ns1.dnsimple.com / 67m33
162.159.24.4
Ashburn/Virginia/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1804
Columbus/North Carolina/United States (US) - CLOUDFLARE

bookclubz.com
  ns1.dnsimple.com / 67m33
162.159.24.4
Ashburn/Virginia/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1804
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns2.dnsimple.com / 67m33
162.159.25.4
Ashburn/Virginia/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1904
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns3.dnsimple.com / 67m33
162.159.26.4
Ashburn/Virginia/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1a04
Columbus/North Carolina/United States (US) - CLOUDFLARE


  ns4.dnsimple.com / 67m24
162.159.27.4
Ashburn/Virginia/United States (US) - Cloudflare, Inc.


 
2400:cb00:2049:1::a29f:1b04
Columbus/North Carolina/United States (US) - CLOUDFLARE

com
  a.gtld-servers.net / nnn1-was1


  b.gtld-servers.net / nnn1-eltxl2


  c.gtld-servers.net / nnn1-was1


  d.gtld-servers.net / nnn1-was1


  e.gtld-servers.net / nnn1-was1


  f.gtld-servers.net / nnn1-ams6


  g.gtld-servers.net / nnn1-ams6


  h.gtld-servers.net / nnn1-ams6


  i.gtld-servers.net / nnn1-ams6


  j.gtld-servers.net / nnn1-ein2


  k.gtld-servers.net / nnn1-ein5


  l.gtld-servers.net / nnn1-ein2


  m.gtld-servers.net / nnn1-ein2


4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1617457090
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:1617457090
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:1617457100
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:8


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1617457100
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:8


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1617457115
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:4


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1617457115
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:4


Domain:bookclubz.com
Zone-Name:bookclubz.com
Primary:ns1.dnsimple.com
Mail:admin.dnsimple.com
Serial:1435005961
Refresh:86400
Retry:7200
Expire:604800
TTL:300
num Entries:8


Domain:api.bookclubz.com
Zone-Name:bookclubz.com
Primary:ns1.dnsimple.com
Mail:admin.dnsimple.com
Serial:1435005961
Refresh:86400
Retry:7200
Expire:604800
TTL:300
num Entries:2


Domain:www.api.bookclubz.com
Zone-Name:bookclubz.com
Primary:ns1.dnsimple.com
Mail:admin.dnsimple.com
Serial:1435005961
Refresh:86400
Retry:7200
Expire:604800
TTL:300
num Entries:1


5. Screenshots

Startaddress: https://api.bookclubz.com, address used: https://api.bookclubz.com/, Screenshot created 2021-04-03 15:40:30 +00:0

Mobil (412px x 732px)

349 milliseconds

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

357 milliseconds

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

656 milliseconds

Screenshot Desktop - https://api.bookclubz.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 1.2, ECDHE_RSA with P-256, 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://api.bookclubz.com/
162.243.186.159
301
https://api.bookclubz.com/
Html is minified: 109.03 %
0.194
A
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:36 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

• http://api.bookclubz.com/
2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
Html is minified: 109.03 %
0.203
A
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:36 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

• http://www.api.bookclubz.com/
162.243.186.159
301
https://api.bookclubz.com/
Html is minified: 109.03 %
0.193
E
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:37 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

• http://www.api.bookclubz.com/
2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
Html is minified: 109.03 %
0.190
E
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:37 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

• https://www.api.bookclubz.com/
162.243.186.159
301
https://api.bookclubz.com/
Html is minified: 109.03 %
3.327
B
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:45 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

• https://www.api.bookclubz.com/
2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
Html is minified: 109.03 %
3.324
B
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:49 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

• https://api.bookclubz.com/
162.243.186.159
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 102.97 %
3.383
B
small visible content (num chars: 65)
Welcome to the Bookclubz server! To visit Bookclubz, click here .
Server: nginx
Date: Sat, 03 Apr 2021 13:39:37 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 104
Connection: close
X-Frame-Options: SAMEORIGIN
Vary: Origin, Cookie
Set-Cookie: sessionid=dqkbxz25f8gvp7wr03t3uotxs3ytzguu; expires=Sat, 17 Apr 2021 13:39:37 GMT; HttpOnly; Max-Age=1209600; Path=/; SameSite=Lax

• https://api.bookclubz.com/
2604:a880:800:10::3a61:a001
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 102.97 %
3.380
B
small visible content (num chars: 65)
Welcome to the Bookclubz server! To visit Bookclubz, click here .
Server: nginx
Date: Sat, 03 Apr 2021 13:39:41 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 104
Connection: close
X-Frame-Options: SAMEORIGIN
Vary: Origin, Cookie
Set-Cookie: sessionid=crjlt2wceaw4d7u6x5jx9uvyq3xhicee; expires=Sat, 17 Apr 2021 13:39:41 GMT; HttpOnly; Max-Age=1209600; Path=/; SameSite=Lax

• http://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
162.243.186.159
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.03 %
0.193
A
Visible Content: 301 Moved Permanently nginx/1.16.1
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:53 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• http://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2604:a880:800:10::3a61:a001
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.03 %
0.200
A
Visible Content: 301 Moved Permanently nginx/1.16.1
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:54 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• http://www.api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
162.243.186.159
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.03 %
0.193
E
Visible Content: 301 Moved Permanently nginx/1.16.1
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:54 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• http://www.api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2604:a880:800:10::3a61:a001
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.03 %
0.200
E
Visible Content: 301 Moved Permanently nginx/1.16.1
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:54 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• https://api.bookclubz.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 %
3.404
B
Not Found
Visible Content: Not Found The requested resource was not found on this server.
Server: nginx
Date: Sat, 03 Apr 2021 13:40:03 GMT
Content-Type: text/html
Content-Length: 77
Connection: close
X-Frame-Options: SAMEORIGIN
Vary: Origin, Cookie
Set-Cookie: sessionid=28ub2fl8nrglu44nkt2kq26t5wn5q182; expires=Sat, 17 Apr 2021 13:40:03 GMT; HttpOnly; Max-Age=1209600; Path=/; SameSite=Lax

• https://162.243.186.159/
162.243.186.159
301
https://api.bookclubz.com/
Html is minified: 109.03 %
3.330
N
Certificate error: RemoteCertificateNameMismatch
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:55 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

• https://[2604:a880:0800:0010:0000:0000:3a61:a001]/
2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
Html is minified: 109.03 %
3.364
N
Certificate error: RemoteCertificateNameMismatch
Server: nginx/1.16.1
Date: Sat, 03 Apr 2021 13:39:59 GMT
Content-Type: text/html
Content-Length: 169
Connection: close
Location: https://api.bookclubz.com/

7. Comments


1. General Results, most used to calculate the result

Aname "api.bookclubz.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
AGood: Minimal 2 ip addresses per domain name found: api.bookclubz.com has 2 different ip addresses (authoritative).
AGood: Minimal 2 ip addresses per domain name found: www.api.bookclubz.com has 2 different ip addresses (authoritative).
AGood: Ipv4 and Ipv6 addresses per domain name found: api.bookclubz.com has 1 ipv4, 1 ipv6 addresses
AGood: Ipv4 and Ipv6 addresses per domain name found: www.api.bookclubz.com has 1 ipv4, 1 ipv6 addresses
Agood: No asked Authoritative Name Server had a timeout
Ahttps://162.243.186.159/ 162.243.186.159
301
https://api.bookclubz.com/
correct redirect https to https
Ahttps://162.243.186.159/ 162.243.186.159
301
https://api.bookclubz.com/
correct redirect https to https
Ahttps://[2604:a880:0800:0010:0000:0000:3a61:a001]/ 2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
correct redirect https to https
Ahttps://[2604:a880:0800:0010:0000:0000:3a61:a001]/ 2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
correct redirect https to https
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 cookie has a SameSite Attribute with a correct value Strict/Lax/None
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 (3 urls)
https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de


Url with incomplete Content-Type - header - missing charset
Ahttp://api.bookclubz.com/ 162.243.186.159
301
https://api.bookclubz.com/
correct redirect http - https with the same domain name
Ahttp://api.bookclubz.com/ 2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
correct redirect http - https with the same domain name
Bhttps://api.bookclubz.com/ 162.243.186.159
200

Missing HSTS-Header
Bhttps://api.bookclubz.com/ 2604:a880:800:10::3a61:a001
200

Missing HSTS-Header
Bhttps://www.api.bookclubz.com/ 162.243.186.159
301

Missing HSTS-Header
Bhttps://www.api.bookclubz.com/ 2604:a880:800:10::3a61:a001
301

Missing HSTS-Header
Bhttps://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404

Missing HSTS-Header
Bhttps://api.bookclubz.com/ 162.243.186.159
200
sessionid=dqkbxz25f8gvp7wr03t3uotxs3ytzguu; expires=Sat, 17 Apr 2021 13:39:37 GMT; HttpOnly; Max-Age=1209600; Path=/; SameSite=Lax
Cookie sent via https, but not marked as secure
Bhttps://api.bookclubz.com/ 2604:a880:800:10::3a61:a001
200
sessionid=crjlt2wceaw4d7u6x5jx9uvyq3xhicee; expires=Sat, 17 Apr 2021 13:39:41 GMT; HttpOnly; Max-Age=1209600; Path=/; SameSite=Lax
Cookie sent via https, but not marked as secure
Bhttps://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
sessionid=28ub2fl8nrglu44nkt2kq26t5wn5q182; expires=Sat, 17 Apr 2021 13:40:03 GMT; HttpOnly; Max-Age=1209600; Path=/; SameSite=Lax
Cookie sent via https, but not marked as secure
Ehttp://www.api.bookclubz.com/ 162.243.186.159
301
https://api.bookclubz.com/
Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. 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. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Ehttp://www.api.bookclubz.com/ 2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. 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. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Nhttps://162.243.186.159/ 162.243.186.159
301
https://api.bookclubz.com/
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://[2604:a880:0800:0010:0000:0000:3a61:a001]/ 2604:a880:800:10::3a61:a001
301
https://api.bookclubz.com/
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 api.bookclubz.com, 2 ip addresses.
AGood: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain www.api.bookclubz.com, 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 api.bookclubz.com, 2 ip addresses, 1 different http results.
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.api.bookclubz.com, 2 ip addresses, 1 different http results.

2. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 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.dnsimple.com (162.159.24.4, 2400:cb00:2049:1::a29f:1804), ns2.dnsimple.com (162.159.25.4, 2400:cb00:2049:1::a29f:1904), ns3.dnsimple.com (162.159.26.4, 2400:cb00:2049:1::a29f:1a04), ns4.dnsimple.com (162.159.27.4, 2400:cb00:2049:1::a29f:1b04)
AGood (1 - 3.0):: An average of 0.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 4 different Name Servers found: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, 4 Name Servers included in Delegation: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, 4 Name Servers included in 1 Zone definitions: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com, 1 Name Servers listed in SOA.Primary: ns1.dnsimple.com.
AGood: Only one SOA.Primary Name Server found.: ns1.dnsimple.com.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.dnsimple.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.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.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: 4 different Name Servers found
AGood: All name servers have ipv4- and ipv6-addresses.: 4 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.: 4 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: dnsimple.com
Warning: All Name Servers from the same Country / IP location.: 4 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 4 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: 4 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: 2 good Nameserver
AGood: Nameserver supports Echo Capitalization: 2 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 2 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 2 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

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: No https + http status 200 with inline CSS / JavaScript found
AGood: Every https result with status 200 has a minified Html-Content with a quota lower then 110 %.
AGood: Every https connection via port 443 supports the http/2 protocol via ALPN.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
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
https://api.bookclubz.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.404 seconds
Warning: 404 needs more then one second
AInfo: Different Server-Headers found
ADuration: 117547 milliseconds, 117.547 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
api.bookclubz.com
162.243.186.159
443
ok
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok
api.bookclubz.com
162.243.186.159
443
ok
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
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 - incomplete
1CN=api.bookclubz.com

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


api.bookclubz.com
2604:a880:800:10::3a61:a001
443
ok
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

api.bookclubz.com
2604:a880:800:10::3a61:a001
443
ok
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
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 - incomplete
1CN=api.bookclubz.com

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


www.api.bookclubz.com
162.243.186.159
443
ok
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

www.api.bookclubz.com
162.243.186.159
443
ok
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
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 - incomplete
1CN=api.bookclubz.com

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


www.api.bookclubz.com
2604:a880:800:10::3a61:a001
443
ok
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

www.api.bookclubz.com
2604:a880:800:10::3a61:a001
443
ok
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
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 - incomplete
1CN=api.bookclubz.com

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


api.bookclubz.com
api.bookclubz.com
443
ok
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

api.bookclubz.com
api.bookclubz.com
443
ok
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
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 - incomplete
1CN=api.bookclubz.com

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


162.243.186.159
162.243.186.159
443
name does not match
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

162.243.186.159
162.243.186.159
443
name does not match
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
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 - incomplete
1CN=api.bookclubz.com

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


[2604:a880:0800:0010:0000:0000:3a61:a001]
2604:a880:800:10::3a61:a001
443
name does not match
Tls12
ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
ok

[2604:a880:0800:0010:0000:0000:3a61:a001]
2604:a880:800:10::3a61:a001
443
name does not match
Tls12

ECDH Ephermal
256
Aes128
128
Sha256
error checking OCSP stapling
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 - incomplete
1CN=api.bookclubz.com

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


9. Certificates

1.
1.
CN=api.bookclubz.com
25.03.2021
24.06.2021
372 days expired
api.bookclubz.com, www.api.bookclubz.com - 2 entries
1.
1.
CN=api.bookclubz.com
25.03.2021

24.06.2021
372 days expired
api.bookclubz.com, www.api.bookclubz.com - 2 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:032E2AD3D38094A039E10C0299346B1F5F66
Thumbprint:F7648CDA862B027F2FF40C31E72E5007E9A9B3F9
SHA256 / Certificate:q9633c3XKWorba303lrWVPJ8t423k6i/1e4idGol1Sc=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):bbff21834c8567c26ba072611945b9026bd7dde1010d46d04c4deeec3479f94a
SHA256 hex / Subject Public Key Information (SPKI):bbff21834c8567c26ba072611945b9026bd7dde1010d46d04c4deeec3479f94a
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
275 days expired


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

29.09.2021
275 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
274 days expired


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

30.09.2021
274 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)

Issuerlast 7 daysactivenum Certs
CN=R3, O=Let's Encrypt, C=US
0
0
2

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2401721116
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-03-25 22:28:04
2021-06-23 22:28:04
api.bookclubz.com, www.api.bookclubz.com - 2 entries


2243204051
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-01-24 23:08:18
2021-04-24 23:08:18
api.bookclubz.com, www.api.bookclubz.com - 2 entries



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

No CRT - CT-Log entries found


11. Html-Content - Entries

Summary

No data found or small Code-update

Details

Small Code Update - wait one minute


12. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns1.dnsimple.com, ns2.dnsimple.com, ns3.dnsimple.com, ns4.dnsimple.com

QNr.DomainTypeNS used
1
com
NS
l.root-servers.net (2001:500:9f::42)

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.dnsimple.com: 162.159.24.4, 2400:cb00:2049:1::a29f:1804
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns2.dnsimple.com
162.159.25.4, 2400:cb00:2049:1::a29f:1904

Answer: ns3.dnsimple.com
162.159.26.4, 2400:cb00:2049:1::a29f:1a04

Answer: ns4.dnsimple.com
162.159.27.4, 2400:cb00:2049:1::a29f:1b04


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.api.bookclubz.com
0

no CAA entry found
1
0
api.bookclubz.com
0

no CAA entry found
1
0
bookclubz.com
0

no CAA entry found
1
0
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
bookclubz.com
google-site-verification=QwrWtqrtRFs62B9MT8LukHY_zO0cd20bEjNisMTQj_c
ok
1
0
bookclubz.com
google-site-verification=X2GLnLF4n9GQwBbPQ6cUlVd0AiK-qwWJV0310oln5cc
ok
1
0
bookclubz.com
v=spf1 a include:_spf.google.com ~all
ok
1
0
api.bookclubz.com

ok
1
0
www.api.bookclubz.com

ok
1
0
_acme-challenge.api.bookclubz.com

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

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

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

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

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

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=ed58de39-6728-440d-bf92-407c13f7eb4c


Last Result: https://check-your-website.server-daten.de/?q=api.bookclubz.com - 2021-04-03 15:38:39


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