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
devhub.schoolathome.ca
A
152.44.40.167
Chicago/Illinois/United States (US) - UpCloud USA Inc
Hostname: 152-44-40-167.us-chi1.upcloud.host
yes
2
0

AAAA

yes


www.devhub.schoolathome.ca
C
devhub.schoolathome.ca
yes
1
0

A
152.44.40.167
Chicago/Illinois/United States (US) - UpCloud USA Inc
Hostname: 152-44-40-167.us-chi1.upcloud.host
yes



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: 22.04.2020, 00:00:00 +, Signature-Inception: 01.04.2020, 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: ca
ca
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: 19.04.2020, 17:00:00 +, Signature-Inception: 06.04.2020, 16:00:00 +, KeyTag 48903, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 48903 used to validate the DS RRSet in the parent zone



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 2134, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 35433, Flags 256



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 12.04.2020, 17:47:37 +, Signature-Inception: 05.04.2020, 14:09:07 +, KeyTag 2134, Signer-Name: ca



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 2134 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 2134, DigestType 2 and Digest "S4R1wMD+Kv3+4acaI3yRBZCY0S/BgmWykO2yOKX2NYI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: schoolathome.ca
schoolathome.ca
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: NS, DS, RRSIG



0 DNSKEY RR found





Zone: devhub.schoolathome.ca
devhub.schoolathome.ca
0 DS RR in the parent zone found



0 DNSKEY RR found





Zone: www.devhub.schoolathome.ca
www.devhub.schoolathome.ca
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
devhub.schoolathome.ca
  ns1.schoolathome.ca
94.237.48.233
London/England/United Kingdom (GB) - UpCloud Ltd


  ns2.schoolathome.ca
94.237.67.154
Singapore//Singapore (SG) - UpCloud Ltd

schoolathome.ca
  ns1.schoolathome.ca


  ns2.schoolathome.ca

ca
  any.ca-servers.ca / LHR2


  c.ca-servers.ca / STO1


  j.ca-servers.ca


  x.ca-servers.ca / dns-decix-dns01.nic.cz


4. SOA-Entries


Domain:ca
Zone-Name:
Primary:prdpublish04.cira.ca
Mail:admin-dns.cira.ca
Serial:2004062100
Refresh:1800
Retry:900
Expire:3456000
TTL:3600
num Entries:2


Domain:ca
Zone-Name:
Primary:prdpublish04.cira.ca
Mail:admin-dns.cira.ca
Serial:2004062130
Refresh:1800
Retry:900
Expire:3456000
TTL:3600
num Entries:2


Domain:schoolathome.ca
Zone-Name:
Primary:ns1.schoolathome.ca
Mail:techsupport.schoolathome.ca
Serial:2014030514
Refresh:86400
Retry:7200
Expire:3600000
TTL:3600
num Entries:2


Domain:devhub.schoolathome.ca
Zone-Name:
Primary:ns1.schoolathome.ca
Mail:techsupport.schoolathome.ca
Serial:2218080106
Refresh:3600
Retry:7200
Expire:1209600
TTL:3600
num Entries:2


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://devhub.schoolathome.ca/
152.44.40.167
200

Html is minified: 100.00 %
0.250
H
small visible content (num chars: 4)
test
Date: Mon, 06 Apr 2020 21:44:08 GMT
Server: Apache/2.4.37 (centos)
X-Powered-By: PHP/7.2.29
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

• http://www.devhub.schoolathome.ca/
152.44.40.167
200

Html is minified: 100.00 %
0.243
H
small visible content (num chars: 4)
test
Date: Mon, 06 Apr 2020 21:44:08 GMT
Server: Apache/2.4.37 (centos)
X-Powered-By: PHP/7.2.29
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8

• https://devhub.schoolathome.ca/
152.44.40.167
-2

1.367
V
ConnectFailure - Unable to connect to the remote server

• https://www.devhub.schoolathome.ca/
152.44.40.167
-2

1.357
V
ConnectFailure - Unable to connect to the remote server

• http://devhub.schoolathome.ca/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
152.44.40.167
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 100.00 %
0.257
A
Not Found
Visible Content: Not Found The requested URL /.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de was not found on this server.
Date: Mon, 06 Apr 2020 21:44:11 GMT
Server: Apache/2.4.37 (centos)
Content-Length: 267
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.devhub.schoolathome.ca/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
152.44.40.167
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 100.00 %
0.243
A
Not Found
Visible Content: Not Found The requested URL /.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de was not found on this server.
Date: Mon, 06 Apr 2020 21:44:11 GMT
Server: Apache/2.4.37 (centos)
Content-Length: 267
Connection: close
Content-Type: text/html; charset=iso-8859-1

7. Comments


1. General Results, most used to calculate the result

Aname "devhub.schoolathome.ca" is subdomain, public suffix is "ca", top-level-domain-type is "country-code", Country is Canada, tld-manager is "Canadian Internet Registration Authority (CIRA) Autorité Canadienne pour les enregistrements Internet (ACEI)"
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.
AGood: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
CError - more then one version with Http-Status 200. After all redirects, all users (and search engines) should see the same https url: Non-www or www, but not both with http status 200.
Hfatal error: No https - result with http-status 200, no encryption
HFatal error: http result with http-status 200, no encryption. Add a redirect http ⇒ https, so every connection is secure. 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.
Vhttps://devhub.schoolathome.ca/ 152.44.40.167
-2

connect failure - perhaps firewall
Vhttps://www.devhub.schoolathome.ca/ 152.44.40.167
-2

connect failure - perhaps firewall

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.schoolathome.ca,ns2.schoolathome.ca
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.
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: 41183 milliseconds, 41.183 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
www.devhub.schoolathome.ca



1
0
devhub.schoolathome.ca
0

no CAA entry found
1
0
schoolathome.ca
0

no CAA entry found
1
0
ca
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
schoolathome.ca
MS=3B9D8FC81B2C00ACA47F018C68DAFAC0AAE8584C
ok
1
0
schoolathome.ca
MS=ms64544604
ok
1
0
schoolathome.ca
v=spf1 include:_spf.google.com include:moodle.schoolathome.ca include:hub.schoolathome.ca ~all
ok
1
0
devhub.schoolathome.ca
v=spf1 a -all
ok
1
0
www.devhub.schoolathome.ca
v=spf1 a -all
ok
1
0
_acme-challenge.devhub.schoolathome.ca

Name Error - The domain name does not exist
1
0
_acme-challenge.www.devhub.schoolathome.ca

Name Error - The domain name does not exist
1
0
_acme-challenge.devhub.schoolathome.ca.schoolathome.ca

Name Error - The domain name does not exist
1
0
_acme-challenge.devhub.schoolathome.ca.devhub.schoolathome.ca

Name Error - The domain name does not exist
1
0
_acme-challenge.www.devhub.schoolathome.ca.devhub.schoolathome.ca

Name Error - The domain name does not exist
1
0
_acme-challenge.www.devhub.schoolathome.ca.www.devhub.schoolathome.ca

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=65bcaa70-cfbe-4503-b2f5-0e147bb8f0d6


Last Result: https://check-your-website.server-daten.de/?q=devhub.schoolathome.ca - 2020-04-06 23:44:06


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