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


Info: Problems with 3.048.289 Letsencrypt certificates (378.325 accounts). They must be revoked (revocation starts 2020-03-04 20:00 UTC) - see Revoking certain certificates on March 4. Update 2020-03-07: Good news: Mass-revocation is canceled.

This tool: A check (SerialNumber) is added. Letsencrypt has published a list of critical SerialNumbers, this list is checked. See the part "9. Certificates". If there is a warning, renew that certificate and replace the current certificate.




Y

Private IP-Address found

Checked:
25.03.2020 19:15:55


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
koblitz.spdns.de
A
192.168.2.126
No Hostname found
yes
1
0

AAAA

yes


www.koblitz.spdns.de

Name Error
yes
1
0


2. DNSSEC

Info: The Xml-split has triggered some hidden bugs. Now it looks ok.
If root or the top level zone isn't validated, it's buggy.
Both green and your domain is red -> it's your domain.

Zone (*)DNSSEC - Informations

Zone: (root)
(root)
1 DS RR published



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 33853, Flags 256



Public Key with Algorithm 8, KeyTag 48903, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.04.2020, 00:00:00 +, Signature-Inception: 21.03.2020, 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: de
de
1 DS RR in the parent zone found



1 RRSIG RR to validate DS RR found



Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 07.04.2020, 17:00:00 +, Signature-Inception: 25.03.2020, 16:00:00 +, KeyTag 33853, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 33853 used to validate the DS RRSet in the parent zone



3 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 7836, Flags 256



Public Key with Algorithm 8, KeyTag 21939, Flags 256



Public Key with Algorithm 8, KeyTag 45580, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 1 Labels, original TTL: 300 sec, Signature-expiration: 08.04.2020, 14:16:50 +, Signature-Inception: 25.03.2020, 12:46:50 +, KeyTag 45580, Signer-Name: de



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 45580 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 45580, DigestType 2 and Digest "kYwy4vEiEXZr5iJmdPRHRY8iWbmg2HtE0p1Vr+ymsuE=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: spdns.de
spdns.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 domain name between the hashed NSEC3-owner and the hashed NextOwner. So the parent zone confirmes the non-existence of a DS RR.Bitmap: A, RRSIG



0 DNSKEY RR found





Zone: koblitz.spdns.de
koblitz.spdns.de
0 DS RR in the parent zone found



0 DNSKEY RR found





Zone: www.koblitz.spdns.de
www.koblitz.spdns.de
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.koblitz.spdns.de
  dyndns.securepoint.de

koblitz.spdns.de
  dyndns.securepoint.de / localhost
195.4.152.238
Lüneburg/Lower Saxony/Germany (DE) - WORTMANN AG

spdns.de
  dns-001.securepoint.de / mhwserv01.mhw.de


  dyndns.securepoint.de / localhost


  ns1.m-online.net / ns1.m-online.net


  ns2.m-online.net / ns2.m-online.net


  ns3.m-online.net / ns1.m-online.net


  ns4.m-online.net / ns4.m-online.net

de
  a.nic.de / ns-2.de.de8.bind


  f.nic.de / ns-1.de.de1


  l.de.net / ns-2.de.fr1


  n.de.net / s3.amx


  s.de.net / ns-3.de.de9


  z.nic.de / ns-3.de.de2.bind


4. SOA-Entries


Domain:de
Zone-Name:
Primary:f.nic.de
Mail:its.denic.de
Serial:1585160036
Refresh:7200
Retry:7200
Expire:3600000
TTL:7200
num Entries:6


Domain:spdns.de
Zone-Name:
Primary:dyndns.securepoint.de
Mail:hostmaster.securepoint.de
Serial:1446931780
Refresh:180
Retry:180
Expire:604800
TTL:180
num Entries:4


Domain:spdns.de
Zone-Name:
Primary:dyndns.securepoint.de
Mail:hostmaster.securepoint.de
Serial:1446931781
Refresh:180
Retry:180
Expire:604800
TTL:180
num Entries:2


Domain:koblitz.spdns.de
Zone-Name:
Primary:dyndns.securepoint.de
Mail:hostmaster.securepoint.de
Serial:1446931782
Refresh:180
Retry:180
Expire:604800
TTL:180
num Entries:1


Domain:www.koblitz.spdns.de
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
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







7. Comments


1. General Results, most used to calculate the result

Aname "koblitz.spdns.de" is domain, public suffix is "spdns.de", top-level-domain-type is "country-code", Country is Germany, tld-manager is "DENIC eG"
Agood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
Ykoblitz.spdns.de

192.168.2.126
Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 192.168.0.0 to 192.168.255.255: Class C - 256 private net, every with 256 addresses

2. DNS- and NameServer - Checks

AGood: Nameserver supports TCP connections: 1 good Nameserver
AGood: Nameserver supports Echo Capitalization: 1 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 1 good Nameserver
Nameserver doesn't pass all EDNS-Checks: dyndns.securepoint.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
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

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: 24170 milliseconds, 24.170 seconds


8. Connections

No connection informations found. Perhaps only http - connections.


9. Certificates

No certificate informations found. Perhaps only http - connections.


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

No CRT - CT-Log entries found


11. Html-Content - Entries

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


12. Nameserver - IP-Adresses (alpha)

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.


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
koblitz.spdns.de
0

no CAA entry found
1
0
spdns.de
0

no CAA entry found
1
0
de
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
koblitz.spdns.de

ok
1
0
_acme-challenge.koblitz.spdns.de

Name Error - The domain name does not exist
1
0
_acme-challenge.koblitz.spdns.de.koblitz.spdns.de

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=1bb21bc5-a95f-4154-8115-d5eda618c1e3


Last Result: https://check-your-website.server-daten.de/?q=koblitz.spdns.de - 2020-03-25 19:15:55


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