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.




B

Missing HSTS or Cookie-warnings

Checked:
14.02.2020 01:05:42


Older results


1. IP-Addresses

HostTIP-Addressis auth.∑ Queries∑ Timeout
mail.clt.dk
A
158.248.202.74
Holstebro/Central Jutland/Denmark (DK) - Altibox Danmark
Hostname: 74.158-248-202.customer.lyse.net
yes
1
0

AAAA

yes


www.mail.clt.dk

Name Error
yes
1
0


2. DNSSEC

Zone (*)DNSSEC - Informations (beta)

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: dk
dk
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: 26.02.2020, 21:00:00, Signature-Inception: 13.02.2020, 20:00:00, 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 24435, Flags 256



Public Key with Algorithm 8, KeyTag 32195, Flags 257 (SEP = Secure Entry Point)



1 RRSIG RR to validate DNSKEY RR found



Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 10.03.2020, 13:06:02, Signature-Inception: 11.02.2020, 11:36:02, KeyTag 32195, Signer-Name: dk



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 32195 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 32195, DigestType 2 and Digest "FnyzZSBI9HgiLpWNHK2QfX7LKOelRd4BuFka0p6sZEQ=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: clt.dk
clt.dk
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: mail.clt.dk
mail.clt.dk
0 DS RR in the parent zone found



0 DNSKEY RR found





Zone: www.mail.clt.dk
www.mail.clt.dk
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.mail.clt.dk
  ns1.gratisdns.dk

mail.clt.dk
  ns1.gratisdns.dk
217.61.111.93
Frankfurt am Main/Hesse/Germany (DE) - Aruba GmbH Cloud Network DC05

clt.dk
  ns1.gratisdns.dk


  ns2.gratisdns.dk


  ns3.gratisdns.dk


  ns4.gratisdns.dk


  ns5.gratisdns.dk

dk
  a.nic.dk


  b.nic.dk


  c.nic.dk / LHR2


  l.nic.dk / l.nic.dk


  p.nic.dk / 1.ber.pch


  s.nic.dk / ns-ext1a.sidn.nl


4. SOA-Entries


Domain:dk
Primary:b.nic.dk
Mail:tech.dk-hostmaster.dk
Serial:1581638402
Refresh:600
Retry:300
Expire:1814400
TTL:300
num Entries:1


Domain:dk
Primary:b.nic.dk
Mail:tech.dk-hostmaster.dk
Serial:1581638641
Refresh:600
Retry:300
Expire:1814400
TTL:300
num Entries:5


Domain:clt.dk
Primary:ns1.gratisdns.dk
Mail:hostmaster.gratisdns.dk
Serial:2020021303
Refresh:14400
Retry:3600
Expire:2419000
TTL:43200
num Entries:5


Domain:mail.clt.dk
Primary:ns1.gratisdns.dk
Mail:hostmaster.gratisdns.dk
Serial:2020021303
Refresh:14400
Retry:3600
Expire:2419000
TTL:43200
num Entries:1


5. Screenshots (Beta)

Startaddress: https://mail.clt.dk, address used: https://mail.clt.dk/, Screenshot created 2020-02-15 00:02:35 +00:0

Mobil (412px x 732px)

436 milliseconds

Screenshot mobile - https://mail.clt.dk/
Screen (1280px x 1680px)

744 milliseconds

Screenshot Desktop - https://mail.clt.dk/
Mobil + Landscape (732px x 412px)

464 milliseconds

Screenshot mobile landscape - https://mail.clt.dk/

Mobile- and other Chrome-Checks

widthheight
visual Viewport396732
content Size396803

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.2, ECDHE_RSA with P-256, and AES_128_GCM.

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

6. Url-Checks


:

:
Domainname Http-StatusredirectSec.G
• http://mail.clt.dk/
158.248.202.74
301
https://mail.clt.dk/
Html is minified: 100.00 %
0.064
A
Date: Fri, 14 Feb 2020 00:06:12 GMT
Server: Apache/2.4.25 (Debian)
Location: https://mail.clt.dk/
Content-Length: 305
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://mail.clt.dk/
158.248.202.74 GZip used - 4550 / 15707 - 71.03 %
Inline-JavaScript (∑/total): 1/6631 Inline-CSS (∑/total): 0/0
200

Html is minified: 225.58 %
4.080
B
Date: Fri, 14 Feb 2020 00:06:12 GMT
Server: nginx
Content-Type: text/html; charset=utf-8
Vary: Accept-Encoding
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
Strict-Transport-Security: max-age=15768000;
X-Content-Type-Options: nosniff
X-XSS-Protection: 1; mode=block
X-Robots-Tag: none
X-Download-Options: noopen
X-Frame-Options: SAMEORIGIN
X-Permitted-Cross-Domain-Policies: none
Referrer-Policy: strict-origin
Content-Encoding: gzip
Set-Cookie: PHPSESSID=94ac9bfa83640d69215803bc118b2f9a; Path=/; Domain=mail.clt.dk; HttpOnly; Secure
Connection: close
Transfer-Encoding: chunked

• http://mail.clt.dk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
158.248.202.74
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://mail.clt.dk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
0.074
A
Visible Content: Moved Permanently The document has moved here . Apache/2.4.25 (Debian) Server at mail.clt.dk Port 80
Date: Fri, 14 Feb 2020 00:06:16 GMT
Server: Apache/2.4.25 (Debian)
Location: https://mail.clt.dk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 374
Connection: close
Content-Type: text/html; charset=iso-8859-1

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

Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 110.61 %
3.603
A
Not Found
Visible Content: 404 Not Found nginx
Date: Fri, 14 Feb 2020 00:06:17 GMT
Server: nginx
Content-Type: text/html; charset=utf-8
Content-Length: 146
X-Frame-Options: SAMEORIGIN
Connection: close

7. Comments

Aname "mail.clt.dk" is subdomain, public suffix is "dk", top-level-domain-type is "country-code", Country is Denmark, tld-manager is "Dansk Internet Forum"
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
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)
Ahttp://mail.clt.dk/ 158.248.202.74
301
https://mail.clt.dk/
correct redirect http - https with the same domain name
Bwarning: HSTS max-age is too short - minimum 31536000 = 365 days required, 15768000 seconds = 182 days found
Bhttps://mail.clt.dk/ 158.248.202.74
200
max-age=15768000;
Critical: HSTS-Header has Parse-Errors Empty entry, remove the semicolon at the end., Value of max-age is too small. Should be minimal one year = 31536000., Unknown directive found. Only max-age (with value), includeSubdomains or preload allowed.
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: ns1.gratisdns.dk: 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
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.
AGood: Every https result with status 200 supports GZip.
https://mail.clt.dk/ 158.248.202.74
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://mail.clt.dk/ 158.248.202.74
200

Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
https://mail.clt.dk/ 158.248.202.74
200

Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
AGood: All CSS / JavaScript files are sent with GZip. That reduces the content of the files. 2 external CSS / JavaScript files found
AGood: All CSS / JavaScript files are sent with a long Cache-Control header (minimum 7 days). So the browser can re-use these files, no download is required. 2 external CSS / JavaScript files with long Cache-Control max-age found
AGood: All images are sent with a long Cache-Control header (minimum 7 days). So the browser can reuse these files, no download is required. 2 image files with long Cache-Control max-age found
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: All img-elements have a valid alt-attribute.: 2 img-elements found.
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
https://mail.clt.dk/ 158.248.202.74
200
Strict-Transport-Security: max-age=15768000;
Parse Error - Header can't be parsed
https://mail.clt.dk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.603 seconds
Warning: 404 needs more then one second
AInfo: Different Server-Headers found
ADuration: 64330 milliseconds, 64.330 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
mail.clt.dk
158.248.202.74
443
ok
Tls12
ECDH Ephermal
256
Aes256
256
Sha384
error checking OCSP stapling
ok
mail.clt.dk
158.248.202.74
443
ok
Tls12

ECDH Ephermal
256
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN  Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=mail.clt.dk

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

mail.clt.dk
mail.clt.dk
443
ok
Tls12
ECDH Ephermal
256
Aes256
256
Sha384
error checking OCSP stapling
ok
mail.clt.dk
mail.clt.dk
443
ok
Tls12

ECDH Ephermal
256
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN  Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=mail.clt.dk

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


9. Certificates

1.
1.
CN=mail.clt.dk
13.02.2020
13.05.2020
expires in 42 days
autoconfig.claustoft.dk, autodiscover.claustoft.dk, mail.clt.dk - 3 entries
1.
1.
CN=mail.clt.dk
13.02.2020

13.05.2020
expires in 42 days
autoconfig.claustoft.dk, autodiscover.claustoft.dk, mail.clt.dk - 3 entries

KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:03E68D3562C98BC1F156B2631F0F38513D48
Thumbprint:CDE144E6EC4E64C57BB4A4158D43EDC083E100CC
SHA256 / Certificate:0e8Wt1fhnZmQqf4SKNYjoFwyI9AA2XbZhgLfn+48rHQ=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):3d94e126c4f59ec7601358d99993ba99ca14214e7482fe505a8f34a8147ac770
SHA256 hex / Subject Public Key Information (SPKI):e7c695442b3fdfda7b8a3830b67d078139c0edb70b9eb439ccd1914e68662aa6
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


2.
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
17.03.2016
17.03.2021
expires in 350 days


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

17.03.2021
expires in 350 days


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):cbb93d32de628874a3ecfb92affadc97f1b795f84cc6f24221a089dee1aa25ad
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


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
expires in 547 days


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

30.09.2021
expires in 547 days


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):29cc40db5e2de462a311cbbafaa1dc466960002335ecdf3317f2cd05c1d0bedf
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no



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
2
2

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
1430380465
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-13 22:21:07
2020-05-13 22:21:07
autoconfig.claustoft.dk, autoconfig.clt.dk, autodiscover.claustoft.dk, autodiscover.clt.dk, mail.clt.dk - 5 entries


1429313129
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-13 09:40:37
2020-05-13 09:40:37
autoconfig.claustoft.dk, autodiscover.claustoft.dk, mail.clt.dk - 3 entries



2. Source crt.sh - old and new certificates, sometimes very slow (Update 2020-01-11: Should now work again - code updated. Old message: currently no newer certificates - read Crt.sh has stopped - Letsencrypt-forum - may work next week again - 2019-12-02 - but I must check the code).

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0 /0 new
2
3

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2459271263
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-13 21:21:07
2020-05-13 20:21:07
autoconfig.claustoft.dk, autoconfig.clt.dk, autodiscover.claustoft.dk, autodiscover.clt.dk, mail.clt.dk
5 entries


2457268020
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-02-13 08:40:37
2020-05-13 07:40:37
autoconfig.claustoft.dk, autodiscover.claustoft.dk, mail.clt.dk
3 entries


1128840530
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-01-20 20:07:55
2019-04-20 19:07:55
imap.clt.dk, mail.clt.dk, smtp.clt.dk, webmail.clt.dk
4 entries



11. Html-Content - Entries

Summary

Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://mail.clt.dk/
158.248.202.74
a

31

0


0
0
0


form

2

0
1
0
0
0
0


img

2

0
2
0
0
0
0


link
stylesheet
1

0
1
0
0
0
0


link
other
2
30,856 Bytes
0
2
0
0
0
0


meta
other
5

0


0
0
0


script

1

0
1
0
0
0
0

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://mail.clt.dk/
158.248.202.74
a

#


1
ok








a

#collapse1


1
ok








a

/


1
ok








a

/rc/


1
ok








a

/SOGo/


1
ok








a

?lang=ca


2
ok








a

?lang=cs


2
ok








a

?lang=de


2
ok








a

?lang=en


2
ok








a

?lang=es


2
ok








a

?lang=fi


2
ok








a

?lang=fr


2
ok








a

?lang=it


2
ok








a

?lang=lv


2
ok








a

?lang=nl


2
ok








a

?lang=pl


2
ok








a

?lang=pt


2
ok








a

?lang=ru


2
ok








form
post



1
ok








form
post
/
200

1
ok
text/html; charset=utf-8

4547 Bytes






img
src
/img/cow_mailcow.svg
200

1
ok
alt: mailcowimage/svg+xml

Cache-Control: max-age=315360000,public with long duration found.
GZip: 5247/14552 Bytes






img
src
/img/cow_mailcow.svg
200

1
ok
alt: mailcow-logoimage/svg+xml

Cache-Control: max-age=315360000,public with long duration found.
GZip: 5247/14552 Bytes






link
icon
/favicon.png
200

1
ok
image/png

No Cache-Control header
No GZip - 15428 Bytes






link
shortcut icon
/favicon.png
200

1
ok
image/png

No Cache-Control header
No GZip - 15428 Bytes






link
stylesheet
/cache/fa1409e580bf3d22a285ec17471a8f133b2e47bc.css
200

1
ok
text/css; charset=utf-8

Cache-Control: max-age=31536000 - with long duration found.
GZip: 33095/195361 Bytes




local SRI possible, possible hash-values:

sha256-6jy8nIx8s4pdzSPYE3sGAtn7CsHizGp3TEamiU9Aqj0=
sha384-T1zStFbnFCoZ/VooQ6GzhkrPByWsUbo5CF/5yF/dN1+1mcO6MdKZHyDuHFJUK3/f
sha512-9eXJb+pPzzhDfTC+D1YA3KCpKZXSDxr0fkIRsHJfoInn4DPWfX0C9yZCkRVvq1Qi8DyzvhijMuS6hvYoP7lMFg==

<link rel="stylesheet" href="/cache/fa1409e580bf3d22a285ec17471a8f133b2e47bc.css" crossorigin="anonymous" integrity="sha256-6jy8nIx8s4pdzSPYE3sGAtn7CsHizGp3TEamiU9Aqj0=" />



Content loaded via url("...")

/fonts/glyphicons-halflings-regular.eot1
/fonts/glyphicons-halflings-regular.eot?#iefix1
/fonts/glyphicons-halflings-regular.svg#glyphicons_halflingsregular1
/fonts/glyphicons-halflings-regular.ttf1
/fonts/glyphicons-halflings-regular.woff1
/fonts/glyphicons-halflings-regular.woff21
/fonts/pt-sans-v9-cyrillic_latin-700.woff1
/fonts/pt-sans-v9-cyrillic_latin-700.woff21
/fonts/pt-sans-v9-cyrillic_latin-italic.woff1
/fonts/pt-sans-v9-cyrillic_latin-italic.woff21
/fonts/pt-sans-v9-cyrillic_latin-regular.woff1
/fonts/pt-sans-v9-cyrillic_latin-regular.woff21
/img/languages.png1

meta

utf-8


1
ok








meta
Referrer-Policy
same-origin


1
ok








meta
X-UA-Compatible
IE=edge


1
ok








meta
theme-color
#F5D76E


1
ok








meta
viewport
width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0


1
ok








script
src
/cache/701d0b5b4282d409e131ed3659d9c1c91b4ddc78.js
200

1
ok
application/javascript; charset=utf-8

Cache-Control: max-age=31536000 - with long duration found.
GZip: 153135/536394 Bytes




local SRI possible, possible hash-values:

sha256-kM7/TJqzIwiyRWsuZXh9/beoj9V9MnA7TPV+f7s/tLQ=
sha384-5U1UAzi/c+OBxte9hAo7Rj+qNR47OZu77uasFGbTz3QlCMz3kixDxJlIE49t4i0o
sha512-LiJq2yplANF7szOV/2ywG1WXqF+MjwtT12ipWGq+lhOOpJpLeS1O2jl2nCb2LsZZEBDfgbvWD4E+Xmy7zo13RA==

<script src="/cache/701d0b5b4282d409e131ed3659d9c1c91b4ddc78.js" crossorigin="anonymous" integrity="sha256-kM7/TJqzIwiyRWsuZXh9/beoj9V9MnA7TPV+f7s/tLQ=" />




12. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
mail.clt.dk
32773
issue
letsencrypt.org
1
0
clt.dk
0

no CAA entry found
1
0
dk
0

no CAA entry found
1
0


13. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
clt.dk
v=spf1 ip4:158.248.202.74 ~all
ok
1
0
mail.clt.dk

ok
1
0
_acme-challenge.mail.clt.dk

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.clt.dk.clt.dk

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.clt.dk.mail.clt.dk

Name Error - The domain name does not exist
1
0


14. Portchecks

Domain or IPPortDescriptionResultAnswer
mail.clt.dk
21
FTP



mail.clt.dk
21
FTP



mail.clt.dk
22
SSH



mail.clt.dk
22
SSH



mail.clt.dk
25
SMTP
open
220-mail.clt.dk ESMTP Postcow 220 mail.clt.dk ESMTP Postcow

mail.clt.dk
25
SMTP
open
220-mail.clt.dk ESMTP Postcow 220 mail.clt.dk ESMTP Postcow

mail.clt.dk
53
DNS



mail.clt.dk
53
DNS



mail.clt.dk
110
POP3



mail.clt.dk
110
POP3



mail.clt.dk
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ STARTTLS LOGINDISABLED] Dovecot ready.

mail.clt.dk
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ STARTTLS LOGINDISABLED] Dovecot ready.

mail.clt.dk
465
SMTP (encrypted)



mail.clt.dk
465
SMTP (encrypted)



mail.clt.dk
587
SMTP (encrypted, submission)
open
220 mail.clt.dk ESMTP Postcow

mail.clt.dk
587
SMTP (encrypted, submission)
open
220 mail.clt.dk ESMTP Postcow

mail.clt.dk
993
IMAP (encrypted)



mail.clt.dk
993
IMAP (encrypted)



mail.clt.dk
995
POP3 (encrypted)



mail.clt.dk
995
POP3 (encrypted)



mail.clt.dk
1433
MS SQL



mail.clt.dk
1433
MS SQL



mail.clt.dk
2082
cPanel (http)



mail.clt.dk
2082
cPanel (http)



mail.clt.dk
2083
cPanel (https)



mail.clt.dk
2083
cPanel (https)



mail.clt.dk
2086
WHM (http)



mail.clt.dk
2086
WHM (http)



mail.clt.dk
2087
WHM (https)



mail.clt.dk
2087
WHM (https)



mail.clt.dk
2089
cPanel Licensing



mail.clt.dk
2089
cPanel Licensing



mail.clt.dk
2095
cPanel Webmail (http)



mail.clt.dk
2095
cPanel Webmail (http)



mail.clt.dk
2096
cPanel Webmail (https)



mail.clt.dk
2096
cPanel Webmail (https)



mail.clt.dk
2222
DirectAdmin (http)



mail.clt.dk
2222
DirectAdmin (http)



mail.clt.dk
2222
DirectAdmin (https)



mail.clt.dk
2222
DirectAdmin (https)



mail.clt.dk
3306
mySql



mail.clt.dk
3306
mySql



mail.clt.dk
5224
Plesk Licensing



mail.clt.dk
5224
Plesk Licensing



mail.clt.dk
5432
PostgreSQL



mail.clt.dk
5432
PostgreSQL



mail.clt.dk
8080
Ookla Speedtest (http)



mail.clt.dk
8080
Ookla Speedtest (http)



mail.clt.dk
8080
Ookla Speedtest (https)



mail.clt.dk
8080
Ookla Speedtest (https)



mail.clt.dk
8083
VestaCP http



mail.clt.dk
8083
VestaCP http



mail.clt.dk
8083
VestaCP https



mail.clt.dk
8083
VestaCP https



mail.clt.dk
8443
Plesk Administration (https)



mail.clt.dk
8443
Plesk Administration (https)



mail.clt.dk
8447
Plesk Installer + Updates



mail.clt.dk
8447
Plesk Installer + Updates



mail.clt.dk
8880
Plesk Administration (http)



mail.clt.dk
8880
Plesk Administration (http)



mail.clt.dk
10000
Webmin (http)



mail.clt.dk
10000
Webmin (http)



mail.clt.dk
10000
Webmin (https)



mail.clt.dk
10000
Webmin (https)



158.248.202.74
21
FTP



158.248.202.74
21
FTP



158.248.202.74
22
SSH



158.248.202.74
22
SSH



158.248.202.74
25
SMTP
open
220-mail.clt.dk ESMTP Postcow 220 mail.clt.dk ESMTP Postcow

158.248.202.74
25
SMTP
open
220-mail.clt.dk ESMTP Postcow 220 mail.clt.dk ESMTP Postcow

158.248.202.74
53
DNS



158.248.202.74
53
DNS



158.248.202.74
110
POP3



158.248.202.74
110
POP3



158.248.202.74
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ STARTTLS LOGINDISABLED] Dovecot ready.

158.248.202.74
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 SASL-IR LOGIN-REFERRALS ID ENABLE IDLE LITERAL+ STARTTLS LOGINDISABLED] Dovecot ready.

158.248.202.74
465
SMTP (encrypted)



158.248.202.74
465
SMTP (encrypted)



158.248.202.74
587
SMTP (encrypted, submission)
open
220 mail.clt.dk ESMTP Postcow

158.248.202.74
587
SMTP (encrypted, submission)
open
220 mail.clt.dk ESMTP Postcow

158.248.202.74
993
IMAP (encrypted)



158.248.202.74
993
IMAP (encrypted)



158.248.202.74
995
POP3 (encrypted)



158.248.202.74
995
POP3 (encrypted)



158.248.202.74
1433
MS SQL



158.248.202.74
1433
MS SQL



158.248.202.74
2082
cPanel (http)



158.248.202.74
2082
cPanel (http)



158.248.202.74
2083
cPanel (https)



158.248.202.74
2083
cPanel (https)



158.248.202.74
2086
WHM (http)



158.248.202.74
2086
WHM (http)



158.248.202.74
2087
WHM (https)



158.248.202.74
2087
WHM (https)



158.248.202.74
2089
cPanel Licensing



158.248.202.74
2089
cPanel Licensing



158.248.202.74
2095
cPanel Webmail (http)



158.248.202.74
2095
cPanel Webmail (http)



158.248.202.74
2096
cPanel Webmail (https)



158.248.202.74
2096
cPanel Webmail (https)



158.248.202.74
2222
DirectAdmin (http)



158.248.202.74
2222
DirectAdmin (http)



158.248.202.74
2222
DirectAdmin (https)



158.248.202.74
2222
DirectAdmin (https)



158.248.202.74
3306
mySql



158.248.202.74
3306
mySql



158.248.202.74
5224
Plesk Licensing



158.248.202.74
5224
Plesk Licensing



158.248.202.74
5432
PostgreSQL



158.248.202.74
5432
PostgreSQL



158.248.202.74
8080
Ookla Speedtest (http)



158.248.202.74
8080
Ookla Speedtest (http)



158.248.202.74
8080
Ookla Speedtest (https)



158.248.202.74
8080
Ookla Speedtest (https)



158.248.202.74
8083
VestaCP http



158.248.202.74
8083
VestaCP http



158.248.202.74
8083
VestaCP https



158.248.202.74
8083
VestaCP https



158.248.202.74
8443
Plesk Administration (https)



158.248.202.74
8443
Plesk Administration (https)



158.248.202.74
8447
Plesk Installer + Updates



158.248.202.74
8447
Plesk Installer + Updates



158.248.202.74
8880
Plesk Administration (http)



158.248.202.74
8880
Plesk Administration (http)



158.248.202.74
10000
Webmin (http)



158.248.202.74
10000
Webmin (http)



158.248.202.74
10000
Webmin (https)



158.248.202.74
10000
Webmin (https)





Permalink: https://check-your-website.server-daten.de/?i=20060d23-0d0a-4758-9283-5a487179c328


Last Result: https://check-your-website.server-daten.de/?q=mail.clt.dk - 2020-02-15 00:01:33


Do you like this page? Support this tool, add a link on your page:

<a href="https://check-your-website.server-daten.de/?q=mail.clt.dk" target="_blank">Check this Site: mail.clt.dk</a>