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

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

 

A

 

Top config

 

Checked:
11.06.2019 14:53:50

 

Older results

 

O - 11.06.2019 14:42:00
O - 11.06.2019 14:19:39

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
mail.7lb.de
A
194.32.77.195
/DE
Hostname: mail.7lb.de
yes
1
0

AAAA

yes


www.mail.7lb.de

Name Error
yes
1
0

 

2. DNSSEC

Zone (*)DNSSEC - Informations


Zone: (root)

(root)
1 DS RR published






• Status: Valid because published






2 DNSKEY RR found






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






Public Key with Algorithm 8, KeyTag 25266, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 01.07.2019, 00:00:00 +, Signature-Inception: 10.06.2019, 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: de

de
1 DS RR in the parent zone found






1 RRSIG RR to validate DS RR found






RRSIG-Owner de., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 24.06.2019, 05:00:00 +, Signature-Inception: 11.06.2019, 04:00:00 +, KeyTag 25266, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 25266 used to validate the DS RRSet in the parent zone






3 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 22771, Flags 256






Public Key with Algorithm 8, KeyTag 26298, Flags 256






Public Key with Algorithm 8, KeyTag 39227, Flags 257 (SEP = Secure Entry Point)






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner de., Algorithm: 8, 1 Labels, original TTL: 7200 sec, Signature-expiration: 20.06.2019, 12:00:00 +, Signature-Inception: 30.05.2019, 12:00:00 +, KeyTag 39227, Signer-Name: de






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 39227 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 39227, DigestType 2 and Digest "qrcwg7nvcOSl6UdppBisEuiH/DwIde8gbDRR3EC2xPo=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: 7lb.de

7lb.de
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 "b40t1uc52djcd5a7stq68qlnp2kdbkei" between the hashed NSEC3-owner "b40s563ukcb8da55o66f7gn5b478bdr4" and the hashed NextOwner "b40u6s24c2uigomihgt1m2n57ei7r44p". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: A, RRSIG Validated: RRSIG-Owner b40s563ukcb8da55o66f7gn5b478bdr4.de., Algorithm: 8, 2 Labels, original TTL: 7200 sec, Signature-expiration: 18.06.2019, 11:01:05 +, Signature-Inception: 11.06.2019, 11:01:05 +, KeyTag 22771, Signer-Name: de






0 DNSKEY RR found









Zone: mail.7lb.de

mail.7lb.de
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: www.mail.7lb.de

www.mail.7lb.de
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.mail.7lb.de
•  ns1.hosting.de

mail.7lb.de
•  ns1.hosting.de / ns1a.platformadmin.de
134.0.30.178
Aachen/Nordrhein-Westfalen/DE		•

• 
2a03:2900:3:1::2
Aachen/Nordrhein-Westfalen/DE		•
7lb.de
•  ns1.hosting.de / ns1a.platformadmin.de
•

•  ns2.hosting.de / ns-vie1
•

•  ns3.hosting.de / ns3b
•
de
•  a.nic.de / ns-2.de.de8.bind
•

•  f.nic.de / ns-1.de.de1.bind
•

•  l.de.net / ns-2.de.fr1.bind
•

•  n.de.net / s3.amx
•

•  s.de.net / ns-2.de.de9.bind
•

•  z.nic.de / ns-1.de.de8.bind
•

 

4. SOA-Entries


Domain:de
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


Domain:de
Zone-Name:
Primary:f.nic.de
Mail:its.denic.de
Serial:2019061157
Refresh:7200
Retry:7200
Expire:3600000
TTL:7200
num Entries:5


Domain:7lb.de
Zone-Name:
Primary:ns1.hosting.de
Mail:hostmaster.7lb.de
Serial:2019061101
Refresh:86400
Retry:7200
Expire:2419200
TTL:900
num Entries:3


Domain:mail.7lb.de
Zone-Name:
Primary:ns1.hosting.de
Mail:hostmaster.7lb.de
Serial:2019061101
Refresh:86400
Retry:7200
Expire:2419200
TTL:900
num Entries:2


Domain:www.mail.7lb.de
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


5. Screenshots

No Screenshot listed, because no screenshot found. Perhaps the check is too old, the feature startet 2019-12-23.

 

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://mail.7lb.de/
194.32.77.195
301
https://mail.7lb.de/

0.057
A
Server: nginx/1.10.3
Date: Tue, 11 Jun 2019 12:54:14 GMT
Content-Type: text/html
Content-Length: 185
Connection: close
Location: https://mail.7lb.de/
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block

• https://mail.7lb.de/
194.32.77.195
200


0.430
A
Server: nginx/1.10.3
Date: Tue, 11 Jun 2019 12:54:14 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: close
Set-Cookie: roundcube_sessid=c46igl2ffadnq3upbosb4n7vk0; Path=/; Domain=mail.7lb.de; HttpOnly; Secure
Expires: Tue, 11 Jun 2019 12:54:14 GMT
Last-Modified: Tue, 11 Jun 2019 12:54:14 GMT
Cache-Control: private, no-cache, no-store, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
X-DNS-Prefetch-Control: off
X-Frame-Options: sameorigin,DENY
Content-Language: en
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block

• http://mail.7lb.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
194.32.77.195
301
https://mail.7lb.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

0.057
A
Visible Content:
Server: nginx/1.10.3
Date: Tue, 11 Jun 2019 12:54:15 GMT
Content-Type: text/html
Content-Length: 185
Connection: close
Location: https://mail.7lb.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
X-Frame-Options: DENY
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block

• https://mail.7lb.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

403


0.283
M
Forbidden
Visible Content:
Server: nginx/1.10.3
Date: Tue, 11 Jun 2019 12:54:15 GMT
Content-Type: text/html
Content-Length: 169
Connection: close

 

7. Comments


1. General Results, most used to calculate the result

Aname "mail.7lb.de" is subdomain, public suffix is "de", top-level-domain-type is "country-code", Country is Germany, tld-manager is "DENIC eG"
AGood: All ip addresses are public addresses
AGood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: non-www is preferred
AGood: every cookie sent via https is marked as secure
AGood: every https has a Strict Transport Security Header
AGood: HSTS max-age is long enough, 63072000 seconds = 730 days
AGood: HSTS has includeSubdomains - directive
AGood: HSTS has preload directive
Warning: HSTS preload sent, but not in Preload-List. Never send a preload directive if you don't know what preload means. Check https://hstspreload.org/ to learn the basics about the Google-Preload list. If you send a preload directive, you should **immediately** add your domain to the HSTS preload list via https://hstspreload.org/ . If Google accepts the domain, so the status is "pending": Note that new entries are hardcoded into the Chrome source code and can take several months before they reach the stable version. So you will see this message some months. If you don't want that or if you don't understand "preload", but if you send a preload directive and if you have correct A-redirects, everybody can add your domain to that list. Then you may have problems, it's not easy to undo that. So if you don't want your domain preloaded, remove the preload directive.
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):1 complete Content-Type - header (2 urls)
https://mail.7lb.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de


Url with incomplete Content-Type - header - missing charset
Ahttp://mail.7lb.de/ 194.32.77.195
301
https://mail.7lb.de/
Correct redirect http - https with the same domain name

2. Header-Checks (Cross-Origin-* headers are alpha - started 2024-06-05)


3. DNS- and NameServer - Checks

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
Nameserver doesn't pass all EDNS-Checks: ns1.hosting.de: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
AGood: All SOA have the same Serial Number
AGood: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates

4. Content- and Performance-critical Checks

https://mail.7lb.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
403

Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 401 / 403 Not Allowed / Forbidden. A http status 404 - Not Found - is expected. Creating a Letsencrypt certificate via http-01 challenge may not work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
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
http://mail.7lb.de/ 194.32.77.195
301

Warning: HSTS header sent via http has no effect
ADuration: 27364 milliseconds, 27.364 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
mail.7lb.de
194.32.77.195
443
ok
Tls12
DiffieHellman
2048
Aes256
256
Sha384
supported
ok
mail.7lb.de
194.32.77.195
443
ok
Tls12

DiffieHellman
2048
Aes256
256
Sha384
supported
ok
 
no Tls.1.2
no Tls.1.1
no Tls.1.0

 no Tls.1.2
no Tls.1.1
no Tls.1.0
Chain - incomplete

1CN=7lb.de


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


mail.7lb.de
mail.7lb.de
443
ok
Tls12
DiffieHellman
2048
Aes256
256
Sha384
supported
ok

mail.7lb.de
mail.7lb.de
443
ok
Tls12

DiffieHellman
2048
Aes256
256
Sha384
supported
ok
 
no Tls.1.2
no Tls.1.1
no Tls.1.0

 no Tls.1.2
no Tls.1.1
no Tls.1.0
Chain - incomplete

1CN=7lb.de


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

 

9. Certificates

1.
1.
CN=7lb.de
08.05.2019
06.08.2019
1947 days expired		*.7lb.de, 7lb.de - 2 entries
1.
1.
CN=7lb.de
08.05.2019

06.08.2019
1947 days expired


*.7lb.de, 7lb.de - 2 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:03002915FD1A85D0CAEC1EB420D201BF9929
Thumbprint:F7EAC1E7345E544C3BBDC3A146C7156D140A3367
SHA256 / Certificate:PKzcfDc4dVDsv2y9OLa6ydzHrykCk5h6qzggY0nIfB0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):c9e693b9355ebe1c4fc0aa65bbca728795137a6dab74a33ef38e979f7b91bcee
SHA256 hex / Subject Public Key Information (SPKI):c9e693b9355ebe1c4fc0aa65bbca728795137a6dab74a33ef38e979f7b91bcee
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:Server Authentication (1.3.6.1.5.5.7.3.1), Client Authentication (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
1358 days expired

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

17.03.2021
1358 days expired




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):60b87575447dcba2a36b7d11ac09fb24a9db406fee12d2cc90180517616e8a18
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
1161 days expired

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

30.09.2021
1161 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

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. Html-Parsing via https://validator.nu/ / https://validator.w3.org/nu/ (started 2024-09-28, 09:00, alpha)

  Unfortunately, there are differences between the first used validator.nu and validator.w3.org/nu/ - switched to validator.w3.org/nu/. Looks like some error messages (link - fetchpriority attribute) of validator.nu are obsolete, not seen in the w3.org-version and not found in the current specification: link may have a fetchpriority attribute.

Small Code update, wait one minute

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers:

 

No NameServer - IP address informations found. The feature is new (2020-05-07), so recheck this domain.

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
mail.7lb.de
0

no CAA entry found
1
0
7lb.de
32773
issue
letsencrypt.org
1
0
de
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
7lb.de
v=spf1 a:mail.7lb.de ?all
ok
1
0
mail.7lb.de

ok
1
0
_acme-challenge.mail.7lb.de

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.7lb.de.7lb.de

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.7lb.de.mail.7lb.de

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No Ciphers found

 

18. Portchecks

No Port informations found. The feature is new (startet 2019-07-09), so recheck this domain.

 

 

Permalink: https://check-your-website.server-daten.de/?i=4cbb7157-cacc-4249-9411-3e27985abb07

 

Last Result: https://check-your-website.server-daten.de/?q=mail.7lb.de - 2019-06-11 14:53:50

 

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