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



N

No trusted Certificate

Checked:
23.06.2022 12:39:58


Older results

No older results found


1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
mail.demergsystems.com
A
95.216.223.178
Helsinki/Uusimaa/Finland (FI) - Hetzner Online GmbH
Hostname: mail.ms2.ironcrust.com
yes
1
0

AAAA

yes


www.mail.demergsystems.com

Name Error
yes
1
0
*.demergsystems.com
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.mail.demergsystems.com
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes



2. DNSSEC

Zone (*)DNSSEC - Informations

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



DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=



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 20826, Flags 256



Public Key with Algorithm 8, KeyTag 47671, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.07.2022, 00:00:00 +, Signature-Inception: 20.06.2022, 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: com
com
1 DS RR in the parent zone found



DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest 4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=



1 RRSIG RR to validate DS RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 06.07.2022, 05:00:00 +, Signature-Inception: 23.06.2022, 04:00:00 +, KeyTag 47671, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 47671 used to validate the DS RRSet in the parent zone



2 DNSKEY RR found



Public Key with Algorithm 8, KeyTag 30909, Flags 257 (SEP = Secure Entry Point)



Public Key with Algorithm 8, KeyTag 37269, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 29.06.2022, 18:24:21 +, Signature-Inception: 14.06.2022, 18:19:21 +, KeyTag 30909, Signer-Name: com



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 30909 used to validate the DNSKEY RRSet



Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 30909, DigestType 2 and Digest "4tPJFvbe6scylOgmj7WIUESoM/xUWViPSpGEz8QaV2Y=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: demergsystems.com
demergsystems.com
0 DS RR in the parent zone found



DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "3p69bjfmoi1rhq0puaqtubut4b6dtaqd" between the hashed NSEC3-owner "3p690c0qq7gfd744aapa5l7pg5kc7m8c" and the hashed NextOwner "3p69jdv3u0jccoep1oehksginrd69km3". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 3p690c0qq7gfd744aapa5l7pg5kc7m8c.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 29.06.2022, 04:29:57 +, Signature-Inception: 22.06.2022, 03:19:57 +, KeyTag 37269, Signer-Name: com



DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q2d6ni4i7eqh8na30ns61o48ul8g5". So that domain name is the Closest Encloser of "demergsystems.com". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 28.06.2022, 04:24:03 +, Signature-Inception: 21.06.2022, 03:14:03 +, KeyTag 37269, Signer-Name: com



0 DNSKEY RR found




Zone: mail.demergsystems.com
mail.demergsystems.com
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.mail.demergsystems.com
www.mail.demergsystems.com
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.mail.demergsystems.com
  ns01.domaincontrol.com

mail.demergsystems.com
  ns01.domaincontrol.com / hex:0D 70 30 33
2603:5:2140::1
Chicago/Illinois/United States (US) - Host Europe GmbH

demergsystems.com
  ns01.domaincontrol.com / hex:0D 70 30 33
2603:5:2140::1
Chicago/Illinois/United States (US) - Host Europe GmbH


  ns02.domaincontrol.com / hex:0D 70 31 32
2603:5:2240::1
Chicago/Illinois/United States (US) - Host Europe GmbH

com
  a.gtld-servers.net / nnn1-stk4


  b.gtld-servers.net / nnn1-eltxl2


  c.gtld-servers.net / nnn1-stk4


  d.gtld-servers.net / nnn1-stk4


  e.gtld-servers.net / nnn1-stk4


  f.gtld-servers.net / nnn1-ham1


  g.gtld-servers.net / nnn1-ham5


  h.gtld-servers.net / nnn1-ham2


  i.gtld-servers.net / nnn1-wie5


  j.gtld-servers.net / nnn1-lon5


  k.gtld-servers.net / nnn1-lon5


  l.gtld-servers.net / nnn1-lon5


  m.gtld-servers.net / nnn1-lon5


4. SOA-Entries


Domain:com
Zone-Name:com
Primary:a.gtld-servers.net
Mail:nstld.verisign-grs.com
Serial:1655980785
Refresh:1800
Retry:900
Expire:604800
TTL:86400
num Entries:13


Domain:demergsystems.com
Zone-Name:demergsystems.com
Primary:ns01.domaincontrol.com
Mail:dns.jomax.net
Serial:2022051001
Refresh:28800
Retry:7200
Expire:604800
TTL:600
num Entries:2


Domain:mail.demergsystems.com
Zone-Name:demergsystems.com
Primary:ns01.domaincontrol.com
Mail:dns.jomax.net
Serial:2022051001
Refresh:28800
Retry:7200
Expire:604800
TTL:600
num Entries:1


Domain:www.mail.demergsystems.com
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


5. Screenshots

Startaddress: https://mail.demergsystems.com/accounts/login/?next=/, address used: https://mail.demergsystems.com/accounts/login/?next=/, Screenshot created 2022-06-23 12:41:50 +00:0 url is insecure, certificate invalid

Mobil (412px x 732px)

442 milliseconds

Screenshot mobile - https://mail.demergsystems.com/accounts/login/?next=/
Mobil + Landscape (732px x 412px)

521 milliseconds

Screenshot mobile landscape - https://mail.demergsystems.com/accounts/login/?next=/
Screen (1280px x 1680px)

756 milliseconds

Screenshot Desktop - https://mail.demergsystems.com/accounts/login/?next=/

Mobile- and other Chrome-Checks

widthheight
visual Viewport412732
content Size412732

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

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://mail.demergsystems.com/
95.216.223.178
301
https://mail.demergsystems.com/
Html is minified: 107.78 %
0.080
A
Server: nginx/1.14.0 (Ubuntu)
Date: Thu, 23 Jun 2022 10:40:33 GMT
Content-Type: text/html
Content-Length: 194
Connection: close
Location: https://mail.demergsystems.com/

• https://mail.demergsystems.com/
95.216.223.178
302
https://mail.demergsystems.com/accounts/login/?next=/
4.046
N
Certificate error: RemoteCertificateNameMismatch
Server: nginx/1.14.0 (Ubuntu)
Date: Thu, 23 Jun 2022 10:40:33 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 0
Connection: close
Content-Language: en
Vary: Accept-Language, Cookie
Location: /accounts/login/?next=/
X-Frame-Options: SAMEORIGIN

• https://mail.demergsystems.com/accounts/login/?next=/
GZip used - 1175 / 3087 - 61.94 %
Inline-JavaScript (∑/total): 4/71 Inline-CSS (∑/total): 0/0
200

Html is minified: 132.60 %
3.614
N
Certificate error: RemoteCertificateNameMismatch
small visible content (num chars: 53)
Username Password Remember me Log in Forgot password?
Server: nginx/1.14.0 (Ubuntu)
Date: Thu, 23 Jun 2022 10:40:44 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Content-Language: en
Expires: Thu, 23 Jun 2022 10:40:44 GMT
Vary: Accept-Language, Cookie
Cache-Control: no-cache, no-store, must-revalidate, max-age=0
X-Frame-Options: SAMEORIGIN
Set-Cookie: csrftoken=MeHMs90RtFJ2ivKnucOmpdE57yeAu2UukBLAr7ghTSIuxpO36bMFnrkveC0dvpOL; expires=Thu, 22-Jun-2023 10:40:44 GMT; Max-Age=31449600; Path=/; secure
Content-Encoding: gzip

• http://mail.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
95.216.223.178
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://mail.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 107.78 %
0.076
A
Visible Content: 301 Moved Permanently nginx/1.14.0 (Ubuntu)
Server: nginx/1.14.0 (Ubuntu)
Date: Thu, 23 Jun 2022 10:40:39 GMT
Content-Type: text/html
Content-Length: 194
Connection: close
Location: https://mail.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

• https://mail.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
GZip used - 431 / 878 - 50.91 %
Inline-JavaScript (∑/total): 3/0 Inline-CSS (∑/total): 1/55
404

Html is minified: 123.31 %
3.567
N
Not Found
Certificate error: RemoteCertificateNameMismatch
Visible Content: Sorry The requested page does not exist.
Info: Html-Content with meta and/or script, may be a problem creating a Letsencrypt certificate using http-01 validation
Server: nginx/1.14.0 (Ubuntu)
Date: Thu, 23 Jun 2022 10:40:49 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: close
Vary: Accept-Language, Cookie
X-Frame-Options: SAMEORIGIN
Content-Language: en
Content-Encoding: gzip

• https://95.216.223.178/
95.216.223.178
400

Html is minified: 100.00 %
3.656
N
Bad Request
Certificate error: RemoteCertificateNameMismatch
Server: nginx/1.14.0 (Ubuntu)
Date: Thu, 23 Jun 2022 10:40:40 GMT
Content-Type: text/html
Transfer-Encoding: chunked
Connection: close

7. Comments


1. General Results, most used to calculate the result

Aname "mail.demergsystems.com" is subdomain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 63591 (complete: 175327)
Agood: All ip addresses are public addresses
Warning: Only one ip address found: mail.demergsystems.com has only one ip address.
Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: mail.demergsystems.com has no ipv6 address.
Agood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
Ahttps://mail.demergsystems.com/ 95.216.223.178
302
https://mail.demergsystems.com/accounts/login/?next=/
correct redirect https to https
Agood: destination is https
Agood - only one version with Http-Status 200
Agood: one preferred version: non-www is preferred
AGood: No cookie sent via http.
Agood: every cookie sent via https is marked as secure
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.demergsystems.com/ 95.216.223.178
301
https://mail.demergsystems.com/
correct redirect http - https with the same domain name
Bhttps://mail.demergsystems.com/ 95.216.223.178
302

Missing HSTS-Header
Bhttps://mail.demergsystems.com/accounts/login/?next=/
200

Missing HSTS-Header
Bhttps://mail.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404

Missing HSTS-Header
Bhttps://mail.demergsystems.com/accounts/login/?next=/
200
csrftoken=MeHMs90RtFJ2ivKnucOmpdE57yeAu2UukBLAr7ghTSIuxpO36bMFnrkveC0dvpOL; expires=Thu, 22-Jun-2023 10:40:44 GMT; Max-Age=31449600; Path=/; secure
Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value.
Mhttps://95.216.223.178/ 95.216.223.178
400

Misconfiguration - main pages should never send http status 400 - 499
Nhttps://mail.demergsystems.com/ 95.216.223.178
302
https://mail.demergsystems.com/accounts/login/?next=/
Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://mail.demergsystems.com/accounts/login/?next=/
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://mail.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nhttps://95.216.223.178/ 95.216.223.178
400

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nmail.demergsystems.com:993


Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Nmail.demergsystems.com:995


Error - Certificate isn't trusted, RemoteCertificateNameMismatch
N95.216.223.178:993


Error - Certificate isn't trusted, RemoteCertificateNameMismatch
N95.216.223.178:995


Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain mail.demergsystems.com, 1 ip addresses, 1 different http results.

2. DNS- and NameServer - Checks

AInfo:: 27 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 27 Queries complete, 27 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
Bad (greater 8):: An average of 13.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 2 different Name Servers found: ns01.domaincontrol.com, ns02.domaincontrol.com, 2 Name Servers included in Delegation: ns01.domaincontrol.com, ns02.domaincontrol.com, 2 Name Servers included in 1 Zone definitions: ns01.domaincontrol.com, ns02.domaincontrol.com, 1 Name Servers listed in SOA.Primary: ns01.domaincontrol.com.
AGood: Only one SOA.Primary Name Server found.: ns01.domaincontrol.com.
AGood: SOA.Primary Name Server included in the delegation set.: ns01.domaincontrol.com.
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: ns01.domaincontrol.com, ns02.domaincontrol.com
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 2 different Name Servers found
Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 2 Name Servers, 1 Top Level Domain: com
Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used: domaincontrol.com
Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: US
A
AInfo: IPv6-Subnet-list: 2 Name Servers with IPv6, 1 different subnets (first block): 2603:, 1 different subnets (first two blocks): 2603:0005:, 2 different subnets (first three blocks): 2603:0005:2140:, 2603:0005:2240:, 2 different subnets (first four blocks): 2603:0005:2140:0000:, 2603:0005:2240:0000:
AGood: Name Server IPv6 addresses from different subnets found.
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: ns01.domaincontrol.com: 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

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.demergsystems.com/accounts/login/?next=/
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.demergsystems.com/accounts/login/?next=/
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.demergsystems.com/accounts/login/?next=/
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.
https://mail.demergsystems.com/accounts/login/?next=/
200

Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 3 script elements without defer/async.
https://mail.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404

Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 3 script elements without defer/async.
Warning: CSS / JavaScript found without GZip support. Send these ressources with GZip. 10 external CSS / JavaScript files without GZip found - 0 with GZip, 10 complete
AGood: All images with internal compression not sent via GZip. Images (.png, .jpg) are already compressed, so an additional GZip isn't helpful. 1 images (type image/png, image/jpg) found without additional GZip. Not required because these images are already compressed
Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 10 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 10 complete.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 1 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 1 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
Wrong: img-elements without alt-attribute or empty alt-attribute found. The alt-attribute ("alternative") is required and should describe the img. So Screenreader and search engines are able to use these informations.: 1 img-elements without alt-attribute, 0 img-elements with empty alt-attribute 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.demergsystems.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.567 seconds
Warning: 404 needs more then one second
ADuration: 121773 milliseconds, 121.773 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
mail.demergsystems.com
mail.demergsystems.com
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
mail.demergsystems.com
mail.demergsystems.com
443
name does not match
Tls12

ECDH Ephermal
255
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 - too much certificates, don't send root certificates
1CN=mail.ms2.ironcrust.com

2CN=R3, O=Let's Encrypt, C=US

3CN=ISRG Root X1, O=Internet Security Research Group, C=US


mail.demergsystems.com
95.216.223.178
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

mail.demergsystems.com
95.216.223.178
443
name does not match
Tls12

ECDH Ephermal
255
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 - too much certificates, don't send root certificates
1CN=mail.ms2.ironcrust.com

2CN=R3, O=Let's Encrypt, C=US

3CN=ISRG Root X1, O=Internet Security Research Group, C=US


95.216.223.178
95.216.223.178
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok

95.216.223.178
95.216.223.178
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
error checking OCSP stapling
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
Chain - too much certificates, don't send root certificates
1CN=mail.ms2.ironcrust.com

2CN=R3, O=Let's Encrypt, C=US

3CN=ISRG Root X1, O=Internet Security Research Group, C=US


mail.demergsystems.com
mail.demergsystems.com
993
name does not match
Tls12
ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok

mail.demergsystems.com
mail.demergsystems.com
993
name does not match
Tls12

ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok
 
Tls.1.2
Tls.1.1
Tls.1.0

Tls.1.2
Tls.1.1
Tls.1.0


mail.demergsystems.com
mail.demergsystems.com
995
name does not match
Tls12
ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok

mail.demergsystems.com
mail.demergsystems.com
995
name does not match
Tls12

ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok
 
Tls.1.2
Tls.1.1
Tls.1.0

Tls.1.2
Tls.1.1
Tls.1.0


95.216.223.178
95.216.223.178
993
name does not match
Tls12
ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok

95.216.223.178
95.216.223.178
993
name does not match
Tls12

ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok
 
Tls.1.2
Tls.1.1
Tls.1.0

Tls.1.2
Tls.1.1
Tls.1.0


95.216.223.178
95.216.223.178
995
name does not match
Tls12
ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok

95.216.223.178
95.216.223.178
995
name does not match
Tls12

ECDH Ephermal
384
Aes256
256
Sha384
error checking OCSP stapling
ok
 
Tls.1.2
Tls.1.1
Tls.1.0

Tls.1.2
Tls.1.1
Tls.1.0


9. Certificates

1.
1.
CN=mail.ms2.ironcrust.com
20.06.2022
18.09.2022
expires in 79 days
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.goaspc.org, mail.irineupereira.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.narayanipublications.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org, mail.uniqueenterprisegoa.com - 10 entries
1.
1.
CN=mail.ms2.ironcrust.com
20.06.2022

18.09.2022
expires in 79 days
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.goaspc.org, mail.irineupereira.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.narayanipublications.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org, mail.uniqueenterprisegoa.com - 10 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:03BEE7AC039D4887B7B1475F4FD79AF44C31
Thumbprint:E717A171F5EE5A83E9DB19139608C598A85AC6E4
SHA256 / Certificate:9bsKPc8zi0RRLooebcAHD5XkDItT2d8sygWL3rc5D+E=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):7655ceeb277a6f1c01ae7d251cc417b6ba88606e35920f033863954a1c39141b
SHA256 hex / Subject Public Key Information (SPKI):7655ceeb277a6f1c01ae7d251cc417b6ba88606e35920f033863954a1c39141b (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://r3.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
expires in 1172 days


2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
expires in 1172 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 4721 days


3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 4721 days


KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:



10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Issuerlast 7 daysactivenum Certs
CN=R3, O=Let's Encrypt, C=US
0
1
3

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
3618796784
leaf cert
CN=R3, O=Let's Encrypt, C=US
2022-04-12 09:58:42
2022-07-11 09:58:41
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.irineupereira.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.narayanipublications.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org, mail.uniqueenterprisegoa.com - 10 entries


3567542401
leaf cert
CN=R3, O=Let's Encrypt, C=US
2022-03-29 09:42:33
2022-06-27 09:42:32
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.irineupereira.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org - 8 entries


3564162691
leaf cert
CN=R3, O=Let's Encrypt, C=US
2022-03-28 10:54:30
2022-06-26 10:54:29
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org - 7 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=R3, O=Let's Encrypt, C=US
0 /0 new
1
11
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0 /0 new
0
7

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
6529340771
precert
CN=R3, O=Let's Encrypt, C=US
2022-04-12 07:58:42
2022-07-11 07:58:41
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.irineupereira.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.narayanipublications.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org, mail.uniqueenterprisegoa.com
10 entries


6434630248
leaf cert
CN=R3, O=Let's Encrypt, C=US
2022-03-29 07:42:33
2022-06-27 07:42:32
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.irineupereira.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org
8 entries


6428490199
leaf cert
CN=R3, O=Let's Encrypt, C=US
2022-03-28 08:54:30
2022-06-26 08:54:29
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com, mail.specialolympicsbharatgoa.org
7 entries


6114840252
leaf cert
CN=R3, O=Let's Encrypt, C=US
2022-02-03 06:17:23
2022-05-04 05:17:22
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


5610729149
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-11-15 06:41:11
2022-02-13 06:41:10
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


5453807627
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-10-21 04:01:47
2022-01-19 05:01:46
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


4923213806
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-07-23 01:19:02
2021-10-21 01:19:00
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


4814042137
precert
CN=R3, O=Let's Encrypt, C=US
2021-07-05 08:31:16
2021-10-03 08:31:15
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


4433049189
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-04-26 07:53:58
2021-07-25 07:53:58
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


4084324637
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-02-15 09:43:35
2021-05-16 08:43:35
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


3736370549
leaf cert
CN=R3, O=Let's Encrypt, C=US
2020-12-04 10:14:58
2021-03-04 10:14:58
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


3601858504
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-11-04 09:41:20
2021-02-02 09:41:20
mail.avocet-peregrine.com, mail.coralshipping.co.in, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
6 entries


3421562506
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-09-24 05:26:01
2020-12-23 06:26:01
mail.avocet-peregrine.com, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
5 entries


3001773860
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-06-25 09:59:49
2020-09-23 09:59:49
mail.avocet-peregrine.com, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
5 entries


2672882266
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-04-06 05:31:10
2020-07-05 05:31:10
mail.avocet-peregrine.com, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
5 entries


2309159364
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-01-07 06:40:28
2020-04-06 05:40:28
mail.avocet-peregrine.com, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
5 entries


2047197732
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-10-28 11:46:19
2020-01-26 11:46:19
mail.avocet-peregrine.com, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
5 entries


2012595384
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-10-18 11:11:42
2020-01-16 12:11:42
mail.avocet-peregrine.com, mail.demergsystems.com, mail.machadogoa.com, mail.ms2.ironcrust.com, mail.siliconcomp.com
5 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.demergsystems.com/accounts/login/?next=/
a

2

0


0
0
0


form

1

0
1
0
0
0
0


img

1
13,670 Bytes
0
1
0
0
0
0


link
stylesheet
3
122,056 Bytes
0
3
0
0
0
0


link
other
1
550 Bytes
0
1
0
0
0
0


meta
other
3

0


0
0
0


script

3
308,642 Bytes
0
3
0
0
0
0

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://mail.demergsystems.com/accounts/login/?next=/

a

#


1
ok








a

/accounts/password_reset/


1
ok








form
post
/accounts/login/
200

1
ok
text/html; charset=utf-8, missing X-Content-Type-Options nosniff

1166 Bytes






img
src
/sitestatic/css/modoboa.png
200

1
ok
no alt-Attributeimage/png, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip - 13670 Bytes






link
icon
/sitestatic/css/logo-icon.png
200

1
ok
image/png, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip - 550 Bytes






link
stylesheet
/sitestatic/bootstrap/dist/css/bootstrap.min.css
200

1
ok
text/css, missing X-Content-Type-Options nosniff

No Cache-Control - header
GZip required: 121200 Bytes




local SRI possible, possible hash-values:

sha256-916EbMg70RQy9LHiGkXzG8hSg9EdNy97GazNG/aiY1w=
sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u
sha512-6MXa8B6uaO18Hid6blRMetEIoPqHf7Ux1tnyIQdpt9qI5OACx7C+O3IVTr98vwGnlcg0LOLa02i9Y1HpVhlfiw==

<link rel="stylesheet" href="/sitestatic/bootstrap/dist/css/bootstrap.min.css" crossorigin="anonymous" integrity="sha256-916EbMg70RQy9LHiGkXzG8hSg9EdNy97GazNG/aiY1w=" />



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

link
stylesheet
/sitestatic/css/login.css
200

1
ok
text/css, missing X-Content-Type-Options nosniff

No Cache-Control - header
GZip required: 226 Bytes




local SRI possible, possible hash-values:

sha256-4OxR03+jiIMZ/3HLcLJNa6g3iywU9Qll/tppTLaihNA=
sha384-iKQIbXpeSTtaT7o254iRxCsk2oAQk3QJKu9ugb96F51UbZDvFES5YNK3RxPAi8Ao
sha512-sROTBbTm4oKp8rZbh2RZsBUpao3N2yXCiErxQPgVHewVcDKVeJHCUo1BJTI9aZrS+E/6j5rA06kbVwDaiprPHw==

<link rel="stylesheet" href="/sitestatic/css/login.css" crossorigin="anonymous" integrity="sha256-4OxR03+jiIMZ/3HLcLJNa6g3iywU9Qll/tppTLaihNA=" />




link
stylesheet
/sitestatic/css/offline.css
200

1
ok
text/css, missing X-Content-Type-Options nosniff

No Cache-Control - header
GZip required: 630 Bytes




local SRI possible, possible hash-values:

sha256-iMK4vNeebKftUmUAJETcI1qDZhMBa7FBbptftj38gYY=
sha384-lhMiB/K0YOoBCerzDzm1rb/TF40TcH2xIH9exwI+NmMoF5DqKB2gHfM7Q0IyCZdW
sha512-p+Jcz6i5MCot9OxA65PwDolwnzFloEfACDe/PDg0YjvgElJriaeyS6Mbj4UBrjdtQsKLx32Iuoz1odry2uwwcw==

<link rel="stylesheet" href="/sitestatic/css/offline.css" crossorigin="anonymous" integrity="sha256-iMK4vNeebKftUmUAJETcI1qDZhMBa7FBbptftj38gYY=" />




meta

utf-8


1
ok








meta
X-UA-Compatible
IE=edge


1
ok








meta
viewport
width=device-width, initial-scale=1.0


1
ok








script
src
/jsi18n/
200

1
ok
Missing defer / async attribute. text/javascript, missing X-Content-Type-Options nosniff

No Cache-Control - header
GZip required: 3217 Bytes




local SRI possible, possible hash-values:

sha256-pOjn42Nw/jI3xbKKacExgIYiR8L742E4+ovd4A8dpzE=
sha384-csy2xaUNFTy/yGLFCP4id+L+RRScCIerIs6k8dpXqn4i4AHQZjPTw1yvSY8TOdJq
sha512-NgSSm/Jlnv25gKqojdNRbdTDR5aIcd4gN4STdDj9yrTwHF8CjvifKNXrnGqAmfdzkBypZubDLr+Dz/SpbNQY9Q==

<script src="/jsi18n/" crossorigin="anonymous" integrity="sha256-pOjn42Nw/jI3xbKKacExgIYiR8L742E4+ovd4A8dpzE=" />




script
src
/sitestatic/bootstrap/dist/js/bootstrap.min.js
200

1
ok
Missing defer / async attribute. application/javascript, missing X-Content-Type-Options nosniff

No Cache-Control - header
GZip required: 37045 Bytes




local SRI possible, possible hash-values:

sha256-U5ZEeKfGNOja007MMD3YBI0A3OSZOQbeG6z2f2Y0hu8=
sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa
sha512-iztkobsvnjKfAtTNdHkGVjAYTrrtlC7mGp/54c40wowO7LhURYl3gVzzcEqGl/qKXQltJ2HwMrdLcNUdo+N/RQ==

<script src="/sitestatic/bootstrap/dist/js/bootstrap.min.js" crossorigin="anonymous" integrity="sha256-U5ZEeKfGNOja007MMD3YBI0A3OSZOQbeG6z2f2Y0hu8=" />




script
src
/sitestatic/jquery/jquery.js
200

1
ok
Missing defer / async attribute. application/javascript, missing X-Content-Type-Options nosniff

No Cache-Control - header
GZip required: 268380 Bytes




local SRI possible, possible hash-values:

sha256-xZdk8eFlltgO7/v2ue0eqzudpF3IVET1lPX6L1lPzIM=
sha384-wouZgTd8v7OjpsoF2TXnp2yW+e2P1+a2zk7+NrSpB+yNf2mtknK/+otXcOONFICn
sha512-307fs8DOtwDApxabOt6GX6wjusUubPRw/pkTn/DV9jJ/kQG12BTUCIAJ6882muA1imXYFriCT2/Uq1SMQg4tfg==

<script src="/sitestatic/jquery/jquery.js" crossorigin="anonymous" integrity="sha256-xZdk8eFlltgO7/v2ue0eqzudpF3IVET1lPX6L1lPzIM=" />




12. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns01.domaincontrol.com, ns02.domaincontrol.com

QNr.DomainTypeNS used
1
com
NS
f.root-servers.net (2001:500:2f::f)

Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
2
ns01.domaincontrol.com
NS
b.gtld-servers.net (2001:503:231d::2:30)

Answer: a1-245.akam.net, a11-64.akam.net, a20-65.akam.net, a6-66.akam.net, a8-67.akam.net, a9-67.akam.net, ans01.domaincontrol.com, ans02.domaincontrol.com

Answer: ans01.domaincontrol.com
2603:5:2111::23, 97.74.97.35

Answer: ans02.domaincontrol.com
173.201.65.35, 2603:5:2211::23
3
ns02.domaincontrol.com
NS
b.gtld-servers.net (2001:503:231d::2:30)

Answer: a1-245.akam.net, a11-64.akam.net, a20-65.akam.net, a6-66.akam.net, a8-67.akam.net, a9-67.akam.net, ans01.domaincontrol.com, ans02.domaincontrol.com

Answer: ans01.domaincontrol.com
2603:5:2111::23, 97.74.97.35

Answer: ans02.domaincontrol.com
173.201.65.35, 2603:5:2211::23
4
net
NS
d.root-servers.net (2001:500:2d::d)

Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
5
a1-245.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
6
a11-64.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
7
a20-65.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
8
a6-66.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
9
a8-67.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
10
a4-67.akam.net: 72.246.46.67
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
11
a6-67.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a4-67.akam.net
72.246.46.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
12
a1-245.akam.net: 193.108.91.245
A
a1-67.akam.net (2600:1401:2::43)
13
a1-245.akam.net: 2600:1401:2::f5
AAAA
a1-67.akam.net (2600:1401:2::43)
14
a11-64.akam.net: 84.53.139.64
A
a1-67.akam.net (2600:1401:2::43)
15
a11-64.akam.net: 2600:1480:1::40
AAAA
a1-67.akam.net (2600:1401:2::43)
16
a20-65.akam.net: 95.100.175.65
A
a1-67.akam.net (2600:1401:2::43)
17
a20-65.akam.net: 2a02:26f0:67::41
AAAA
a1-67.akam.net (2600:1401:2::43)
18
a6-66.akam.net: 23.211.133.66
A
a1-67.akam.net (2600:1401:2::43)
19
a6-66.akam.net: 2600:1401:1::42
AAAA
a1-67.akam.net (2600:1401:2::43)
20
a8-67.akam.net: 2.16.40.67
A
a1-67.akam.net (2600:1401:2::43)
21
a8-67.akam.net: 2600:1403:a::43
AAAA
a1-67.akam.net (2600:1401:2::43)
22
a6-67.akam.net: 23.211.133.67
A
a1-67.akam.net (2600:1401:2::43)
23
a6-67.akam.net: 2600:1401:1::43
AAAA
a1-67.akam.net (2600:1401:2::43)
24
ns01.domaincontrol.com: 97.74.100.1
A
a1-245.akam.net (2600:1401:2::f5)
25
ns01.domaincontrol.com: 2603:5:2140::1
AAAA
a1-245.akam.net (2600:1401:2::f5)
26
ns02.domaincontrol.com: 173.201.68.1
A
a1-245.akam.net (2600:1401:2::f5)
27
ns02.domaincontrol.com: 2603:5:2240::1
AAAA
a1-245.akam.net (2600:1401:2::f5)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
mail.demergsystems.com
0

no CAA entry found
1
0
demergsystems.com
0

no CAA entry found
1
0
com
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
demergsystems.com
v=spf1 mx ~all
ok
1
0
mail.demergsystems.com

ok
1
0
_acme-challenge.mail.demergsystems.com

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.demergsystems.com.demergsystems.com

Name Error - The domain name does not exist
1
0
_acme-challenge.mail.demergsystems.com.mail.demergsystems.com

Name Error - The domain name does not exist
1
0


15. Portchecks

Domain or IPPortDescriptionResultAnswer
mail.demergsystems.com
21
FTP



mail.demergsystems.com
21
FTP



mail.demergsystems.com
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.7

mail.demergsystems.com
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.7

mail.demergsystems.com
25
SMTP
open
220-Welcome, please wait...

mail.demergsystems.com
25
SMTP
open
220-Welcome, please wait...

mail.demergsystems.com
53
DNS



mail.demergsystems.com
53
DNS



mail.demergsystems.com
110
POP3
open
+OK Dovecot (Ubuntu) ready.

mail.demergsystems.com
110
POP3
open
+OK Dovecot (Ubuntu) ready.

mail.demergsystems.com
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot (Ubuntu) ready.

mail.demergsystems.com
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot (Ubuntu) ready.

mail.demergsystems.com
465
SMTP (encrypted)



mail.demergsystems.com
465
SMTP (encrypted)



mail.demergsystems.com
587
SMTP (encrypted, submission)
open
220 mail.ms2.ironcrust.com ESMTP

mail.demergsystems.com
587
SMTP (encrypted, submission)
open
220 mail.ms2.ironcrust.com ESMTP

mail.demergsystems.com
993
IMAP (encrypted)
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot (Ubuntu) ready.
Mail certificate is invalid
mail.demergsystems.com
993
IMAP (encrypted)
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot (Ubuntu) ready.
Mail certificate is invalid
mail.demergsystems.com
995
POP3 (encrypted)
open
+OK Dovecot (Ubuntu) ready.
Mail certificate is invalid
mail.demergsystems.com
995
POP3 (encrypted)
open
+OK Dovecot (Ubuntu) ready.
Mail certificate is invalid
mail.demergsystems.com
1433
MS SQL



mail.demergsystems.com
1433
MS SQL



mail.demergsystems.com
2082
cPanel (http)



mail.demergsystems.com
2082
cPanel (http)



mail.demergsystems.com
2083
cPanel (https)



mail.demergsystems.com
2083
cPanel (https)



mail.demergsystems.com
2086
WHM (http)



mail.demergsystems.com
2086
WHM (http)



mail.demergsystems.com
2087
WHM (https)



mail.demergsystems.com
2087
WHM (https)



mail.demergsystems.com
2089
cPanel Licensing



mail.demergsystems.com
2089
cPanel Licensing



mail.demergsystems.com
2095
cPanel Webmail (http)



mail.demergsystems.com
2095
cPanel Webmail (http)



mail.demergsystems.com
2096
cPanel Webmail (https)



mail.demergsystems.com
2096
cPanel Webmail (https)



mail.demergsystems.com
2222
DirectAdmin (http)



mail.demergsystems.com
2222
DirectAdmin (http)



mail.demergsystems.com
2222
DirectAdmin (https)



mail.demergsystems.com
2222
DirectAdmin (https)



mail.demergsystems.com
3306
mySql



mail.demergsystems.com
3306
mySql



mail.demergsystems.com
5224
Plesk Licensing



mail.demergsystems.com
5224
Plesk Licensing



mail.demergsystems.com
5432
PostgreSQL



mail.demergsystems.com
5432
PostgreSQL



mail.demergsystems.com
8080
Ookla Speedtest (http)



mail.demergsystems.com
8080
Ookla Speedtest (http)



mail.demergsystems.com
8080
Ookla Speedtest (https)



mail.demergsystems.com
8080
Ookla Speedtest (https)



mail.demergsystems.com
8083
VestaCP http



mail.demergsystems.com
8083
VestaCP http



mail.demergsystems.com
8083
VestaCP https



mail.demergsystems.com
8083
VestaCP https



mail.demergsystems.com
8443
Plesk Administration (https)



mail.demergsystems.com
8443
Plesk Administration (https)



mail.demergsystems.com
8447
Plesk Installer + Updates



mail.demergsystems.com
8447
Plesk Installer + Updates



mail.demergsystems.com
8880
Plesk Administration (http)



mail.demergsystems.com
8880
Plesk Administration (http)



mail.demergsystems.com
10000
Webmin (http)



mail.demergsystems.com
10000
Webmin (http)



mail.demergsystems.com
10000
Webmin (https)



mail.demergsystems.com
10000
Webmin (https)



95.216.223.178
21
FTP



95.216.223.178
21
FTP



95.216.223.178
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.7

95.216.223.178
22
SSH
open
SSH-2.0-OpenSSH_7.6p1 Ubuntu-4ubuntu0.7

95.216.223.178
25
SMTP
open
220-Welcome, please wait... 220 mail.ms2.ironcrust.com ESMTP

95.216.223.178
25
SMTP
open
220-Welcome, please wait... 220 mail.ms2.ironcrust.com ESMTP

95.216.223.178
53
DNS



95.216.223.178
53
DNS



95.216.223.178
110
POP3
open
+OK Dovecot (Ubuntu) ready.

95.216.223.178
110
POP3
open
+OK Dovecot (Ubuntu) ready.

95.216.223.178
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot (Ubuntu) ready.

95.216.223.178
143
IMAP
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE STARTTLS LOGINDISABLED] Dovecot (Ubuntu) ready.

95.216.223.178
465
SMTP (encrypted)



95.216.223.178
465
SMTP (encrypted)



95.216.223.178
587
SMTP (encrypted, submission)
open
220 mail.ms2.ironcrust.com ESMTP

95.216.223.178
587
SMTP (encrypted, submission)
open
220 mail.ms2.ironcrust.com ESMTP

95.216.223.178
993
IMAP (encrypted)
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot (Ubuntu) ready.
Mail certificate is invalid
95.216.223.178
993
IMAP (encrypted)
open
* OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN AUTH=LOGIN] Dovecot (Ubuntu) ready.
Mail certificate is invalid
95.216.223.178
995
POP3 (encrypted)
open
+OK Dovecot (Ubuntu) ready.
Mail certificate is invalid
95.216.223.178
995
POP3 (encrypted)
open
+OK Dovecot (Ubuntu) ready.
Mail certificate is invalid
95.216.223.178
1433
MS SQL



95.216.223.178
1433
MS SQL



95.216.223.178
2082
cPanel (http)



95.216.223.178
2082
cPanel (http)



95.216.223.178
2083
cPanel (https)



95.216.223.178
2083
cPanel (https)



95.216.223.178
2086
WHM (http)



95.216.223.178
2086
WHM (http)



95.216.223.178
2087
WHM (https)



95.216.223.178
2087
WHM (https)



95.216.223.178
2089
cPanel Licensing



95.216.223.178
2089
cPanel Licensing



95.216.223.178
2095
cPanel Webmail (http)



95.216.223.178
2095
cPanel Webmail (http)



95.216.223.178
2096
cPanel Webmail (https)



95.216.223.178
2096
cPanel Webmail (https)



95.216.223.178
2222
DirectAdmin (http)



95.216.223.178
2222
DirectAdmin (http)



95.216.223.178
2222
DirectAdmin (https)



95.216.223.178
2222
DirectAdmin (https)



95.216.223.178
3306
mySql



95.216.223.178
3306
mySql



95.216.223.178
5224
Plesk Licensing



95.216.223.178
5224
Plesk Licensing



95.216.223.178
5432
PostgreSQL



95.216.223.178
5432
PostgreSQL



95.216.223.178
8080
Ookla Speedtest (http)



95.216.223.178
8080
Ookla Speedtest (http)



95.216.223.178
8080
Ookla Speedtest (https)



95.216.223.178
8080
Ookla Speedtest (https)



95.216.223.178
8083
VestaCP http



95.216.223.178
8083
VestaCP http



95.216.223.178
8083
VestaCP https



95.216.223.178
8083
VestaCP https



95.216.223.178
8443
Plesk Administration (https)



95.216.223.178
8443
Plesk Administration (https)



95.216.223.178
8447
Plesk Installer + Updates



95.216.223.178
8447
Plesk Installer + Updates



95.216.223.178
8880
Plesk Administration (http)



95.216.223.178
8880
Plesk Administration (http)



95.216.223.178
10000
Webmin (http)



95.216.223.178
10000
Webmin (http)



95.216.223.178
10000
Webmin (https)



95.216.223.178
10000
Webmin (https)





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