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.




W

wrong Web-Response

Checked:
14.01.2020 11:48:48


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
indicotest.albanova.se
A
130.237.244.143
Stockholm/Sweden (SE) - KTH-LAN
Hostname: indico.fysik.su.se
yes
1
0

AAAA

yes


www.indicotest.albanova.se

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 33853, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 01.02.2020, 00:00:00 +, Signature-Inception: 11.01.2020, 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: se
se
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: 27.01.2020, 05:00:00 +, Signature-Inception: 14.01.2020, 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



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 40264, Flags 256



Public Key with Algorithm 8, KeyTag 59407, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 25.01.2020, 19:07:02 +, Signature-Inception: 13.01.2020, 03:10:42 +, KeyTag 59407, Signer-Name: se



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 59407 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 59407, DigestType 2 and Digest "Z6jgb8792Tl/d/JsQa3k7BQvKZvPoYJ/Dvj9h/L2MCI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: albanova.se
albanova.se
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC RR as result with the domain name between the NSEC-Owner "albanova.se" and the NextOwner "albanska.se". So the parent zone confirmes the non-existence of a DS RR. Bitmap: NS, RRSIG, NSEC



0 DNSKEY RR found





Zone: indicotest.albanova.se
indicotest.albanova.se
0 DS RR in the parent zone found



0 DNSKEY RR found





Zone: www.indicotest.albanova.se
www.indicotest.albanova.se
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.indicotest.albanova.se
  a.ns.kth.se

indicotest.albanova.se
  a.ns.kth.se
130.237.72.246
Jönköping/Sweden (SE) - KTHLAN


 
2001:6b0:1::246
Stockholm/Sweden (SE) - SUNET

albanova.se
  a.ns.kth.se


  b.ns.kth.se

se
  a.ns.se / s2.stu


  b.ns.se / u2.gbg


  c.ns.se / u2.svl


  f.ns.se / n1.sth


  g.ns.se / n1.ume


  i.ns.se / s2.amx


  x.ns.se / tldns01-prd.iis.se


  y.ns.se / LHR2


  z.ns.se / STO2


4. SOA-Entries


Domain:se
Zone-Name:
Primary:catcher-in-the-rye.nic.se
Mail:registry-default.nic.se
Serial:2020011410
Refresh:1800
Retry:1800
Expire:864000
TTL:7200
num Entries:9


Domain:albanova.se
Zone-Name:
Primary:a.ns.kth.se
Mail:hostmaster.kth.se
Serial:2020011401
Refresh:600
Retry:600
Expire:604800
TTL:600
num Entries:2


Domain:indicotest.albanova.se
Zone-Name:
Primary:a.ns.kth.se
Mail:hostmaster.kth.se
Serial:2020011401
Refresh:600
Retry:600
Expire:604800
TTL:600
num Entries:2


Domain:www.indicotest.albanova.se
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
• http://indicotest.albanova.se/
130.237.244.143
302
https://indicotest.albanova.se/
0.107
A
content-length: 0
location: https://indicotest.albanova.se/
cache-control: no-cache
connection: close

• https://indicotest.albanova.se/
130.237.244.143
-4

0.266
W
SendFailure - The underlying connection was closed: An unexpected error occurred on a send.

• http://indicotest.albanova.se:443/
130.237.244.143
-8

0.173
A
ConnectionClosed - The underlying connection was closed: The connection was closed unexpectedly.
Visible Content:

• http://indicotest.albanova.se/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
130.237.244.143
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
503

Html is minified: 100.00 %
0.093
S
Service Unavailable
Visible Content: 503 Service Unavailable No server is available to handle this request.
content-length: 107
cache-control: no-cache
content-type: text/html
connection: close

7. Comments


1. General Results, most used to calculate the result

Aname "indicotest.albanova.se" is subdomain, public suffix is "se", top-level-domain-type is "country-code", Country is Sweden, tld-manager is "The Internet Infrastructure Foundation"
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
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
CError - no version with Http-Status 200
Hfatal error: No https - result with http-status 200, no encryption

2. 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: a.ns.kth.se: 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: digicert.com is allowed to create certificates

3. Content- and Performance-critical Checks

http://indicotest.albanova.se/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 130.237.244.143
503

Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 500 - 599, Server Error. Creating a Letsencrypt certificate via http-01 challenge can't 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
ADuration: 40237 milliseconds, 40.237 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
indicotest.albanova.se
0

no CAA entry found
1
0
albanova.se
5
issue
digicert.com
1
0
se
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
albanova.se
v=spf1 include:_spf.kth.se a:mail-prod-route02.it.su.se a:mail-prod-route03.it.su.se a:mail-prod-route04.it.su.se ~all
ok
1
0
indicotest.albanova.se

ok
1
0
_acme-challenge.indicotest.albanova.se

Name Error - The domain name does not exist
1
0
_acme-challenge.indicotest.albanova.se.albanova.se

Name Error - The domain name does not exist
1
0
_acme-challenge.indicotest.albanova.se.indicotest.albanova.se

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=5aaedddf-1547-4710-a53b-a8c8861a4bd6


Last Result: https://check-your-website.server-daten.de/?q=indicotest.albanova.se - 2020-01-14 11:48:48


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