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.





1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
billrothgymnasium.at
A
91.227.205.222
Graz/Styria/Austria (AT) - EDIS GmbH
Hostname: 222-205-227-91.static.edis.at
yes
1
0

AAAA

yes


www.billrothgymnasium.at
A
91.227.205.222
Graz/Styria/Austria (AT) - EDIS GmbH
Hostname: 222-205-227-91.static.edis.at
yes
1
0

AAAA

yes



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 33853, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 02.03.2020, 00:00:00 +, Signature-Inception: 10.02.2020, 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: at
at
2 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: 01.03.2020, 05:00:00 +, Signature-Inception: 17.02.2020, 04:00:00 +, KeyTag 33853, Signer-Name: (root)



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



4 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 739, Flags 256



Public Key with Algorithm 8, KeyTag 5321, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 19294, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 26899, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 29.02.2020, 12:08:38 +, Signature-Inception: 16.02.2020, 05:09:14 +, KeyTag 5321, Signer-Name: at



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 5321 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 5321, DigestType 2 and Digest "s/vQJLYUIxnAZHbQ/KU8LlvYlLGwO0wY6p4nvfs86vM=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: billrothgymnasium.at
billrothgymnasium.at
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: TXT, RRSIG



0 DNSKEY RR found





Zone: www.billrothgymnasium.at
www.billrothgymnasium.at
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.billrothgymnasium.at
  ns1.edis.at / ns1

billrothgymnasium.at
  ns1.edis.at / ns1
91.227.204.227
Graz/Styria/Austria (AT) - EDIS GmbH


 
2a03:f80:ad15:91:227:204:227:1
Graz/Styria/Austria (AT) - EDIS GmbH 3


  ns2.edis.at / ns2
91.227.205.227
Graz/Styria/Austria (AT) - EDIS GmbH


 
2a03:f80:ad15:91:227:205:227:1
Graz/Styria/Austria (AT) - EDIS GmbH 3


  ns5.edis.at / ns5.edis.at
37.235.54.54
London/England/United Kingdom (GB) - Goscomb Technologies


 
2a01:348:70:46:17:57:5:1
City of London/England/United Kingdom (GB) - HighSpeed Office Limited


  ns6.edis.at / ns6.edis.at
178.209.42.105
Zurich/Switzerland (CH) - Nine Internet Solutions AG


 
2a02:418:6a04:178:209:42:105:1
Bern/Switzerland (CH) - Nine Internet Solutions AG

at
  d.ns.at / id-d-FRA-01-at


  j.ns.at / s2.amx


  n.ns.at / id-n-AMS-01-at


  ns1.univie.ac.at / id-01-NIG-02-at


  ns2.univie.ac.at / id-02-STO-03-at


  ns9.univie.ac.at / ns-2.at.de8.bind


  r.ns.at / tld-at-fra2


  u.ns.at / id-u-LON-02-at


4. SOA-Entries


Domain:at
Zone-Name:
Primary:dns.nic.at
Mail:domain-admin.univie.ac.at
Serial:1581933601
Refresh:10800
Retry:3600
Expire:604800
TTL:10800
num Entries:8


Domain:billrothgymnasium.at
Zone-Name:
Primary:ns1.edis.at
Mail:root.edis.at
Serial:2019022917
Refresh:10800
Retry:900
Expire:604800
TTL:86400
num Entries:8


Domain:www.billrothgymnasium.at
Zone-Name:
Primary:ns1.edis.at
Mail:root.edis.at
Serial:2019022917
Refresh:10800
Retry:900
Expire:604800
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://billrothgymnasium.at/
91.227.205.222
-14

10.047
T
Timeout - The operation has timed out

• http://www.billrothgymnasium.at/
91.227.205.222
-14

10.030
T
Timeout - The operation has timed out

• https://billrothgymnasium.at/
91.227.205.222
-14

10.040
T
Timeout - The operation has timed out

• https://www.billrothgymnasium.at/
91.227.205.222
-14

10.044
T
Timeout - The operation has timed out

• http://billrothgymnasium.at/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
91.227.205.222
-14

10.044
T
Timeout - The operation has timed out
Visible Content:

• http://www.billrothgymnasium.at/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
91.227.205.222
-14

10.107
T
Timeout - The operation has timed out
Visible Content:

7. Comments


1. General Results, most used to calculate the result

Aname "billrothgymnasium.at" is domain, public suffix is "at", top-level-domain-type is "country-code", Country is Austria, tld-manager is "nic.at GmbH"
Agood: All ip addresses are public addresses
Agood: No asked Authoritative Name Server had a timeout
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.

2. DNS- and NameServer - Checks

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.edis.at,ns2.edis.at,ns5.edis.at,ns6.edis.at
AGood: Nameserver supports TCP connections: 8 good Nameserver
AGood: Nameserver supports Echo Capitalization: 8 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 8 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 8 good Nameserver
Nameserver doesn't pass all EDNS-Checks: ns1.edis.at: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns1). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.edis.at / 91.227.204.227: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns1). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns1.edis.at / 2a03:f80:ad15:91:227:204:227:1: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns1). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.edis.at / 91.227.205.227: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns2). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns2.edis.at / 2a03:f80:ad15:91:227:205:227:1: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns2). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns5.edis.at / 37.235.54.54: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns5.edis.at). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns5.edis.at / 2a01:348:70:46:17:57:5:1: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns5.edis.at). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns6.edis.at / 178.209.42.105: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns6.edis.at). COOKIE: ok. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: ns6.edis.at / 2a02:418:6a04:178:209:42:105:1: OP100: ok. FLAGS: ok. V1: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. V1OP100: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. V1FLAGS: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. DNSSEC: ok. V1DNSSEC: SOA NOT expected, but found, BADVER expected, NOERR found, Version 0 expectend and found. NSID: ok (ns6.edis.at). COOKIE: ok. CLIENTSUBNET: ok.
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://billrothgymnasium.at/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 91.227.205.222
-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.billrothgymnasium.at/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 91.227.205.222
-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.
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: 114454 milliseconds, 114.454 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)

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0
0
5
CN=Sectigo RSA Domain Validation Secure Server CA, O=Sectigo Limited, L=Salford, C=GB, ST=Greater Manchester
0
0
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
1364083074
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-01-14 10:42:01
2020-04-13 10:42:01
*.billrothgymnasium.at, billrothgymnasium.at - 2 entries


1364081608
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-01-14 10:41:06
2020-04-13 10:41:06
*.billrothgymnasium.at, billrothgymnasium.at - 2 entries


1316167723
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-12-20 09:07:43
2020-03-19 09:07:43
portal.billrothgymnasium.at, www.billrothgymnasium.at - 2 entries


1197264616
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-10-21 06:08:39
2020-01-19 06:08:39
portal.billrothgymnasium.at, www.billrothgymnasium.at - 2 entries


876993073
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-04-23 07:39:14
2019-07-22 07:39:14
portal.billrothgymnasium.at, www.billrothgymnasium.at - 2 entries


787011713
leaf cert
CN=Sectigo RSA Domain Validation Secure Server CA, O=Sectigo Limited, L=Salford, C=GB, ST=Greater Manchester
2019-02-28 00:00:00
2020-02-28 23:59:59
*.billrothgymnasium.at, billrothgymnasium.at - 2 entries



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
4
CN=Sectigo RSA Domain Validation Secure Server CA, O=Sectigo Limited, L=Salford, C=GB, ST=Greater Manchester
0
0
1

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2338924906
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-01-14 09:42:01
2020-04-13 08:42:01
*.billrothgymnasium.at, billrothgymnasium.at
2 entries


2338923855
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-01-14 09:41:06
2020-04-13 08:41:06
*.billrothgymnasium.at, billrothgymnasium.at
2 entries


2247201653
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-12-20 08:07:43
2020-03-19 08:07:43
portal.billrothgymnasium.at, www.billrothgymnasium.at
2 entries


2024577473
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-10-21 04:08:39
2020-01-19 05:08:39
portal.billrothgymnasium.at, www.billrothgymnasium.at
2 entries


1239535702
leaf cert
CN=Sectigo RSA Domain Validation Secure Server CA, O=Sectigo Limited, L=Salford, C=GB, ST=Greater Manchester
2019-02-27 23:00:00
2020-02-28 22:59:59
*.billrothgymnasium.at, billrothgymnasium.at
2 entries



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
www.billrothgymnasium.at
0

no CAA entry found
1
0
billrothgymnasium.at
0

no CAA entry found
1
0
at
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
billrothgymnasium.at
MS=ms43414964
ok
1
0
billrothgymnasium.at
v=spf1 include:spf.protection.outlook.com -all
ok
1
0
www.billrothgymnasium.at

ok
1
0
_acme-challenge.billrothgymnasium.at
32YxBwZEphwNWzufmiFjz0N4yGT-2HFU9hNmCd6DYQo
looks good, correct length, correct characters
1
0
_acme-challenge.billrothgymnasium.at
63051kYQh6ZumVBOuxDwmIuqgLKNrOeE8D3wWvgFzuQ
looks good, correct length, correct characters
1
0
_acme-challenge.billrothgymnasium.at
6fACK9kYgBeOT_9BX-Z6WQQUug8Vds-UIrZORA3AiAg
looks good, correct length, correct characters
1
0
_acme-challenge.billrothgymnasium.at
gh6m5_ghhRlimZQOTQn-_a6oJlGUE1MvJ4iJRN6Mg_I
looks good, correct length, correct characters
1
0
_acme-challenge.www.billrothgymnasium.at

Name Error - The domain name does not exist
1
0
_acme-challenge.billrothgymnasium.at.billrothgymnasium.at

perhaps wrong
1
0
_acme-challenge.www.billrothgymnasium.at.billrothgymnasium.at

perhaps wrong
1
0
_acme-challenge.www.billrothgymnasium.at.www.billrothgymnasium.at

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=07557d8f-901f-45fa-adcd-fe31b8ed69a0


Last Result: https://check-your-website.server-daten.de/?q=billrothgymnasium.at - 2020-02-17 11:36:01


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