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

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No trusted Certificate

Checked:
08.07.2026 00:26:05

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1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
dakota-science.org	A	54.152.53.125 Ashburn/Virginia/United States (US) - Amazon.com, Inc. Hostname: ec2-54-152-53-125.compute-1.amazonaws.com	yes	1	0
	AAAA		yes
www.dakota-science.org	A	54.152.53.125 Ashburn/Virginia/United States (US) - Amazon.com, Inc. Hostname: ec2-54-152-53-125.compute-1.amazonaws.com	yes	1	0
	AAAA		yes
*.dakota-science.org	A	54.152.53.125	yes
	AAAA		yes
	CNAME		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


	4 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 38696, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 54393, Flags 256


	Public Key with Algorithm 8, KeyTag 57780, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.07.2026, 00:00:00 +, Signature-Inception: 01.07.2026, 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: org
org	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 20.07.2026, 20:00:00 +, Signature-Inception: 07.07.2026, 19:00:00 +, KeyTag 57780, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 57780 used to validate the DS RRSet in the parent zone


	3 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 13950, Flags 256


	Public Key with Algorithm 8, KeyTag 22809, Flags 256


	Public Key with Algorithm 8, KeyTag 26974, Flags 257 (SEP = Secure Entry Point)


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner org., Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 22.07.2026, 15:24:00 +, Signature-Inception: 01.07.2026, 14:24:00 +, KeyTag 26974, Signer-Name: org


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26974 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 26974, DigestType 2 and Digest "T+3ilMU/Q4oVjEHTlInNeKhr6w2KCur/FHRcDRbh3jI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: dakota-science.org
dakota-science.org	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 "nrpnleh6anr4qclvihshlabpjpgemha0" between the hashed NSEC3-owner "nrpkp0oj8vdiastn3up1v6cdm7622juh" and the hashed NextOwner "nrpo6he898hh1tkq0ias5df9vpj25s49". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner nrpkp0oj8vdiastn3up1v6cdm7622juh.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 22.07.2026, 15:24:00 +, Signature-Inception: 01.07.2026, 14:24:00 +, KeyTag 13950, Signer-Name: org


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "gdtpongmpok61u9lvnipqor8lra9l4t0" as Owner. That's the Hash of "org" with the NextHashedOwnerName "gdtrea8kmj2rneqen4m2ogj26kfsukj7". So that domain name is the Closest Encloser of "dakota-science.org". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner gdtpongmpok61u9lvnipqor8lra9l4t0.org., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 28.07.2026, 22:25:28 +, Signature-Inception: 07.07.2026, 21:25:28 +, KeyTag 13950, Signer-Name: org


	0 DNSKEY RR found




Zone: www.dakota-science.org
www.dakota-science.org	0 DS RR in the parent zone found

3. Name Servers

Domain	Nameserver	NS-IP
www.dakota-science.org	• ns49.worldnic.com / txl01		•
dakota-science.org	• ns49.worldnic.com / txl01	162.159.26.111 Toronto/Ontario/Canada (CA) - Cloudflare, Inc.	•
	• ns50.worldnic.com / txl01	162.159.27.50 Toronto/Ontario/Canada (CA) - Cloudflare, Inc.	•
org	• a0.org.afilias-nst.info / app23.lax1.hosts.meta.redstone.afilias-nst.info-1633102198		•
	• a2.org.afilias-nst.info / FRA3		•
	• b0.org.afilias-nst.org / app23.lax1.hosts.meta.redstone.afilias-nst.info-1633102198		•
	• b2.org.afilias-nst.org / FRA4		•
	• c0.org.afilias-nst.info / app11.nrt1.hosts.meta.redstone.afilias-nst.info-1615580861		•
	• d0.org.afilias-nst.org / app9.lax1.hosts.meta.redstone.afilias-nst.info-1633102198		•

4. SOA-Entries

Domain:	org
Zone-Name:	org
Primary:	a0.org.afilias-nst.info
Mail:	hostmaster.donuts.email
Serial:	1783462829
Refresh:	7200
Retry:	900
Expire:	1209600
TTL:	3600
num Entries:	6

Domain:	dakota-science.org
Zone-Name:	dakota-science.org
Primary:	ns49.worldnic.com
Mail:	namehost.WORLDNIC.COM
Serial:	124032712
Refresh:	10800
Retry:	3600
Expire:	604800
TTL:	3600
num Entries:	2

Domain:	www.dakota-science.org
Zone-Name:	dakota-science.org
Primary:	ns49.worldnic.com
Mail:	namehost.WORLDNIC.COM
Serial:	124032712
Refresh:	10800
Retry:	3600
Expire:	604800
TTL:	3600
num Entries:	1

5. Screenshots

Startaddress: https://dakota-science.org/, address used: https://dakota-science.org/, Screenshot created 2026-07-08 00:31:21 +00:0 url is insecure, certificate invalid

Mobil (412px x 732px)

1367 milliseconds

Screenshot mobile - https://dakota-science.org/

Mobil + Landscape (732px x 412px)

1378 milliseconds

Screenshot mobile landscape - https://dakota-science.org/

Screen (1280px x 1680px)

1535 milliseconds

Screenshot Desktop - https://dakota-science.org/

Mobile- and other Chrome-Checks

	width	height
visual Viewport	397	732
content Size	397	2716

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

6. Url-Checks

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://dakota-science.org/ 54.152.53.125	302	https://dakota-science.org/ Html is minified: 103.43 %	0.290	A
Date: Tue, 07 Jul 2026 22:26:57 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Location: https://dakota-science.org/
Content-Length: 211
Content-Type: text/html; charset=iso-8859-1

• http://www.dakota-science.org/ 54.152.53.125	301	https://dakota-science.org/https://www.dakota-science.org/ Html is minified: 102.70 %	0.147	E
Date: Tue, 07 Jul 2026 22:26:57 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Location: https://dakota-science.org/https://www.dakota-science.org/
Content-Length: 266
Content-Type: text/html; charset=iso-8859-1

• https://www.dakota-science.org/ 54.152.53.125	301	https://dakota-science.org/ Html is minified: 103.07 %	5.260	N
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Date: Tue, 07 Jul 2026 22:27:06 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Location: https://dakota-science.org/
Content-Length: 235
Content-Type: text/html; charset=iso-8859-1

• https://dakota-science.org/ 54.152.53.125 No Compression used - 4932 / 14794 - 33.34 % possible Inline-JavaScript (∑/total): 1/615 Inline-CSS (∑/total): 0/0	200	Html is minified: 131.96 % Other inline scripts (∑/total): 0/0	5.600	N
Certificate error: RemoteCertificateChainErrors
Date: Tue, 07 Jul 2026 22:26:58 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Set-Cookie: PHPSESSID=qbem7r3qpmkdlehk3eaqv6312o; path=/
Transfer-Encoding: chunked
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 14794

• https://dakota-science.org/https://www.dakota-science.org/ Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	404	Html is minified: 137.01 % Other inline scripts (∑/total): 0/0	4.807	N
Not Found
Certificate error: RemoteCertificateChainErrors
Date: Tue, 07 Jul 2026 22:27:22 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Set-Cookie: PHPSESSID=3kkt7pbo4s8bv7gfm5pbic8evs; path=/
Transfer-Encoding: chunked
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 9004

• http://dakota-science.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 54.152.53.125 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	302	https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de Html is minified: 102.70 % Other inline scripts (∑/total): 0/0	0.287	A
Visible Content:
Date: Tue, 07 Jul 2026 22:27:12 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Location: https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de
Content-Length: 266
Content-Type: text/html; charset=iso-8859-1

• http://www.dakota-science.org/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 54.152.53.125 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	301	https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de Html is minified: 102.23 % Other inline scripts (∑/total): 0/0	0.150	E
Visible Content:
Date: Tue, 07 Jul 2026 22:27:13 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Location: https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de
Content-Length: 321
Content-Type: text/html; charset=iso-8859-1

• https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	404	Html is minified: 137.01 % Other inline scripts (∑/total): 0/0	4.753	N
Not Found
Certificate error: RemoteCertificateChainErrors
Visible Content:
Date: Tue, 07 Jul 2026 22:27:29 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Transfer-Encoding: chunked
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 9004

• https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	404	Html is minified: 137.01 % Other inline scripts (∑/total): 0/0	4.766	N
Not Found
Certificate error: RemoteCertificateChainErrors
Visible Content:
Date: Tue, 07 Jul 2026 22:27:35 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Transfer-Encoding: chunked
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 9004

• https://54.152.53.125/ 54.152.53.125 No Compression used - 4932 / 14794 - 33.34 % possible Inline-JavaScript (∑/total): 1/615 Inline-CSS (∑/total): 0/0	200	Html is minified: 131.96 % Other inline scripts (∑/total): 0/0	5.576	N
Certificate error: RemoteCertificateNameMismatch, RemoteCertificateChainErrors
Date: Tue, 07 Jul 2026 22:27:15 GMT
Server: Apache/2.4.56,(Amazon Linux),OpenSSL/3.0.8
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Transfer-Encoding: chunked
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 14794

7. Comments

	1. General Results, most used to calculate the result
A	name "dakota-science.org" is domain, public suffix is ".org", top-level-domain is ".org", top-level-domain-type is "generic", tld-manager is "Public Interest Registry (PIR)", num .org-domains preloaded: 10357 (complete: 276475)
A	Good: All ip addresses are public addresses
	Warning: Only one ip address found: dakota-science.org has only one ip address.
	Warning: Only one ip address found: www.dakota-science.org 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: dakota-science.org has no ipv6 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: www.dakota-science.org has no ipv6 address.
A	Good: No asked Authoritative Name Server had a timeout
A	Good: destination is https
A	Good - only one version with Http-Status 200
A	Good: one preferred version: non-www is preferred
A	Good: No cookie sent via http.
	HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
A	Good: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
A	http://dakota-science.org/ 54.152.53.125	302	https://dakota-science.org/	Correct redirect http - https with the same domain name
B	https://dakota-science.org/https://www.dakota-science.org/	404		Missing HSTS-Header
B	https://dakota-science.org/ 54.152.53.125	200		Missing HSTS-Header
B	https://www.dakota-science.org/ 54.152.53.125	301		Missing HSTS-Header
B	https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404		Missing HSTS-Header
B	https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404		Missing HSTS-Header
B	https://dakota-science.org/https://www.dakota-science.org/	404	PHPSESSID=3kkt7pbo4s8bv7gfm5pbic8evs; path=/	Cookie sent via https, but not marked as secure
B	https://dakota-science.org/ 54.152.53.125	200	PHPSESSID=qbem7r3qpmkdlehk3eaqv6312o; path=/	Cookie sent via https, but not marked as secure
B	https://dakota-science.org/https://www.dakota-science.org/	404	PHPSESSID=3kkt7pbo4s8bv7gfm5pbic8evs; path=/	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.
B	https://dakota-science.org/ 54.152.53.125	200	PHPSESSID=qbem7r3qpmkdlehk3eaqv6312o; path=/	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.
E	http://www.dakota-science.org/ 54.152.53.125	301	https://dakota-science.org/https://www.dakota-science.org/	Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. 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. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
I	https://dakota-science.org/ 54.152.53.125	200		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
I	https://54.152.53.125/ 54.152.53.125	200		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
I	https://dakota-science.org/https://www.dakota-science.org/	404		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
I	https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
I	https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
M	https://dakota-science.org/https://www.dakota-science.org/	404		Misconfiguration - main pages should never send http status 400 - 499
N	https://dakota-science.org/https://www.dakota-science.org/	404		Error - Certificate isn't trusted, RemoteCertificateChainErrors
N	https://dakota-science.org/ 54.152.53.125	200		Error - Certificate isn't trusted, RemoteCertificateChainErrors
N	https://www.dakota-science.org/ 54.152.53.125	301	https://dakota-science.org/	Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
N	https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404		Error - Certificate isn't trusted, RemoteCertificateChainErrors
N	https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404		Error - Certificate isn't trusted, RemoteCertificateChainErrors
N	https://54.152.53.125/ 54.152.53.125	200		Error - Certificate isn't trusted, RemoteCertificateNameMismatch, RemoteCertificateChainErrors
	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 dakota-science.org, 1 ip addresses, 1 different http results.
	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 www.dakota-science.org, 1 ip addresses, 1 different http results.
B	No _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.dakota-science.org
	2. Header-Checks
F	dakota-science.org 54.152.53.125	Content-Security-Policy		Critical: Missing Header:
F	dakota-science.org 54.152.53.125	X-Content-Type-Options		Critical: Missing Header:
F	dakota-science.org 54.152.53.125	Referrer-Policy		Critical: Missing Header:
F	dakota-science.org 54.152.53.125	Permissions-Policy		Critical: Missing Header:
B	dakota-science.org 54.152.53.125	Cross-Origin-Embedder-Policy		Info: Missing Header
B	dakota-science.org 54.152.53.125	Cross-Origin-Opener-Policy		Info: Missing Header
B	dakota-science.org 54.152.53.125	Cross-Origin-Resource-Policy		Info: Missing Header
F	dakota-science.org	Content-Security-Policy		Critical: Missing Header:
F	dakota-science.org	X-Content-Type-Options		Critical: Missing Header:
F	dakota-science.org	Referrer-Policy		Critical: Missing Header:
F	dakota-science.org	Permissions-Policy		Critical: Missing Header:
B	dakota-science.org	Cross-Origin-Embedder-Policy		Info: Missing Header
B	dakota-science.org	Cross-Origin-Opener-Policy		Info: Missing Header
B	dakota-science.org	Cross-Origin-Resource-Policy		Info: Missing Header
	3. DNS- and NameServer - Checks
A	Info:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
A	Info:: 7 Queries complete, 7 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
	Ok (4 - 8):: An average of 3.5 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 2 different Name Servers found: ns49.worldnic.com, ns50.worldnic.com, 2 Name Servers included in Delegation: ns49.worldnic.com, ns50.worldnic.com, 2 Name Servers included in 1 Zone definitions: ns49.worldnic.com, ns50.worldnic.com, 1 Name Servers listed in SOA.Primary: ns49.worldnic.com.
A	Good: Only one SOA.Primary Name Server found.: ns49.worldnic.com.
A	Good: SOA.Primary Name Server included in the delegation set.: ns49.worldnic.com.
A	Good: 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: ns49.worldnic.com, ns50.worldnic.com
A	Good: All Name Server Domain Names have a Public Suffix.
A	Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
A	Good: All Name Server ip addresses are public.
A	Good: Minimal 2 different name servers (public suffix and public ip address) found: 2 different Name Servers found
	Warning: No Name Server IPv6 address found. IPv6 is the future, so your name servers should be visible via IPv6.: 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: worldnic.com
	Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: CA
A	Info: Ipv4-Subnet-list: 2 Name Servers, 1 different subnets (first Byte): 162., 1 different subnets (first two Bytes): 162.159., 2 different subnets (first three Bytes): 162.159.26., 162.159.27.
A	Good: Name Server IPv4-addresses from different subnet found:
A	Good: Nameserver supports TCP connections: 2 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 2 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 2 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 2 good Nameserver
A	Good: 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.
	4. Content- and Performance-critical Checks
A	Good: 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.
	https://dakota-science.org/ 54.152.53.125	200		Warning: https result with status 200 and size greater then 1024 Bytes without Compression found. Add Compression support (gzip, deflate, br - these are checked) so the html content is compressed.
	https://dakota-science.org/ 54.152.53.125	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://54.152.53.125/ 54.152.53.125	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://dakota-science.org/ 54.152.53.125	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://54.152.53.125/ 54.152.53.125	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://dakota-science.org/ 54.152.53.125	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://54.152.53.125/ 54.152.53.125	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://dakota-science.org/https://www.dakota-science.org/	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.: 5 script elements without defer/async.
	https://dakota-science.org/ 54.152.53.125	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.: 6 script elements without defer/async.
	https://dakota-science.org/index.php?id=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.: 5 script elements without defer/async.
	https://dakota-science.org/https://www.dakota-science.org/index.php?id=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.: 5 script elements without defer/async.
	https://54.152.53.125/ 54.152.53.125	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.: 6 script elements without defer/async.
	Warning: CSS / JavaScript found without Compression. Compress these ressources, gzip, deflate, br are checked. 34 external CSS / JavaScript files without Compression found - 0 with Compression, 34 complete
A	Good: All images with internal compression not compressed. Some Images (.png, .jpg, .jpeg, .webp, .gif) are already compressed, so an additional compression isn't helpful. 4 images (type image/png, image/jpg, image/jpeg, image/webp, image/gif) found without additional Compression. 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. 50 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, 50 complete.
	Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 4 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, 4 complete.
A	Good: All checked attribute values are enclosed in quotation marks (" or ').
A	Good: All img-elements have a valid alt-attribute.: 5 img-elements found.
A	Good: 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://dakota-science.org/https://www.dakota-science.org/	404	4.807 seconds	Warning: 404 needs more then one second
	https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404	4.753 seconds	Warning: 404 needs more then one second
	https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	404	4.766 seconds	Warning: 404 needs more then one second
A	Duration: 321574 milliseconds, 321.574 seconds

8. Connections

Domain

Port

Cert.

Protocol

KeyExchange

Strength

Cipher

Strength

HashAlgorithm

OCSP stapling

Domain/KeyExchange

IP/Strength

Port/Cipher

Cert./Strength

Protocol/HashAlgorithm

OCSP stapling

dakota-science.org

443

Certificate/chain invalid

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

dakota-science.org

443

Certificate/chain invalid

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain (complete)	1	CN=dakota-science.org
	2	CN=E8, O=Let's Encrypt, C=US

dakota-science.org

54.152.53.125

443

Certificate/chain invalid

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

dakota-science.org

54.152.53.125

443

Certificate/chain invalid

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain (complete)	1	CN=dakota-science.org
	2	CN=E8, O=Let's Encrypt, C=US

www.dakota-science.org

54.152.53.125

443

Certificate/chain invalid and wrong name

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

www.dakota-science.org

54.152.53.125

443

Certificate/chain invalid and wrong name

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain (complete)	1	CN=dakota-science.org
	2	CN=E8, O=Let's Encrypt, C=US

54.152.53.125

443

Certificate/chain invalid and wrong name

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

54.152.53.125

443

Certificate/chain invalid and wrong name

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

not supported

no http/2 via ALPN
Cert sent without SNI

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

no http/2 via ALPN
Cert sent without SNI

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain (complete)	1	CN=dakota-science.org
	2	CN=E8, O=Let's Encrypt, C=US

9. Certificates

CN=dakota-science.org

27.03.2026

25.06.2026
27 days expired

dakota-science.org - 1 entry

CN=dakota-science.org

27.03.2026

25.06.2026
27 days expired

dakota-science.org - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	06C68EA60730E6E11140341EAEB5B9AE2452
Thumbprint:	C19AFA4002524BA75829233B5C1EF2041541E135
SHA256 / Certificate:	JXOyIGK3mGYi3I1OKRBvqECCdOClOMyUyIySPcOjSBg=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b1b175040b8333825aba9d971547ddc327688ccd93f170b6f7713a6fbda3b2bb
SHA256 hex / Subject Public Key Information (SPKI):	b1b175040b8333825aba9d971547ddc327688ccd93f170b6f7713a6fbda3b2bb (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

NotTimeValid: A required certificate is not within its validity period when verifying against the current system clock or the timestamp in the signed file.

CN=E8, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 234 days

CN=E8, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 234 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	63959363C24E7082715918BFC3D7ED56
Thumbprint:	54317EB0765F0BC674855184EB8374B4199E4655
SHA256 / Certificate:	g2JP0zjI2bAjwYpny3qcBRnaQ9EXdbTGy9rUXD2ZfFI=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	885bf0572252c6741dc9a52f5044487fef2a93b811cdedfad7624cc283b7cdd5
SHA256 hex / Subject Public Key Information (SPKI):
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)

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

04.06.2015

04.06.2035
expires in 3239 days

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

04.06.2015

04.06.2035
expires in 3239 days

Keyalgorithm	RSA 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)

No CertSpotter - CT-Log entries found

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

No CRT - CT-Log entries found

11. Html-Content - Entries

Summary

							Subresource Integrity (SRI)
Domainname	HtmlElement	rel/property	∑	∑ size	∑ problems	∑ int.	∑ ext.	∑ Origin poss.	∑ SRI ParseErrors	∑ SRI valid	∑ SRI missing
https://dakota-science.org/https://www.dakota-science.org/	a		11		0			0	0	0
	img		1	3,203 Bytes	0	1	0	0	0	0
	link	stylesheet	7	180,102 Bytes	2	5	0	0	0	0
	link	other	2		1	1	0	0	0	0
	meta	other	5		0			0	0	0
	script		5	140,399 Bytes	5	5	0	0	0	0
https://dakota-science.org/ 54.152.53.125	a		14		0			0	0	0
	img		1	3,203 Bytes	0	1	0	0	0	0
	link	stylesheet	8	186,133 Bytes	2	6	0	0	0	0
	link	other	2	22,382 Bytes	0	1	0	0	0	0
	meta	other	6		0			0	0	0
	script		6	148,402 Bytes	6	6	0	0	0	0
https://dakota-science.org/https://www.dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	a		11		0			0	0	0
	img		1	3,203 Bytes	0	1	0	0	0	0
	link	stylesheet	7	180,102 Bytes	2	5	0	0	0	0
	link	other	2		1	1	0	0	0	0
	meta	other	5		0			0	0	0
	script		5	140,399 Bytes	5	5	0	0	0	0
https://dakota-science.org/index.php?id=check-your-website-dot-server-daten-dot-de	a		11		0			0	0	0
	img		1	3,203 Bytes	0	1	0	0	0	0
	link	stylesheet	7	180,102 Bytes	2	5	0	0	0	0
	link	other	2	22,382 Bytes	0	1	0	0	0	0
	meta	other	5		0			0	0	0
	script		5	140,399 Bytes	5	5	0	0	0	0
https://54.152.53.125/ 54.152.53.125	a		14		0			0	0	0
	img		1		0			0	0	0
	link	stylesheet	8		2			0	0	0
	link	other	2		0			0	0	0
	meta	other	6		0			0	0	0
	script		6		0			0	0	0

Details (currently limited to 500 rows - some problems with spam users)

Domainname	Html-Element	name/equiv/ property/rel	href/src/content	HttpStatus	∑	Status
https://dakota-science.org/https://www.dakota-science.org/	a		#				1	ok
								ok


	a		https://dakota-science.org/				2	ok
								ok


	a		https://dakota-science.org//admin				1	ok
								ok


	a		https://dakota-science.org/about-dsc/				1	ok
								ok


	a		https://dakota-science.org/contact/				1	ok
								ok


	a		https://dakota-science.org/projects/				1	ok
								ok


	a		https://dakota-science.org/resources/				1	ok
								ok


	a		https://dakota-science.org/updates/				1	ok
								ok


	a		https://www.facebook.com/profile.php?id=100064553295680				1	ok
								ok


	a		mailto:Dakota.Science@gmail.com				1	ok
								ok


	img	src	https://dakota-science.org/theme/DakotaScience2/images/DSC_64_White.png		200		1	ok
	alt: Logo image			image/png missing X-Content-Type-Options nosniff				ok
	No Cache-Control header			No Compression - 3203 Bytes
	ETag: "c83-60529091f3268"

	link	canonical	https://dakota-science.org/404/				1	ok
								ok


	link	icon	favicon.ico		404	Not Found	1	missing file
				text/html; charset=utf-8 missing X-Content-Type-Options nosniff				missing file
				0 Bytes

	link	stylesheet	http://fonts.googleapis.com/css?family=Open+Sans:400italic,600,400&subset=latin,cyrillic				1	http-link, change to https
								http-link, change to https


	link	stylesheet	http://fonts.googleapis.com/css?family=Open+Sans+Condensed:700&subset=latin,cyrillic				1	http-link, change to https
								http-link, change to https


	link	stylesheet	https://dakota-science.org/plugins/cbcontact/form/cbcontact.css		200		1	ok
				text/css missing X-Content-Type-Options nosniff				ok
	No Cache-Control - header			Compression required: 2338 Bytes
	ETag: "922-6044e28c262a9"
	local SRI possible, possible hash-values: sha256-HjEtyR4X3RKaxikzp2tJ2he2qtgAgESeceO8WSCQhJE= sha384-TO/RllOPJmOmrcN2i7oHYeTAsXqP2vLoiWbirdeXXe4QiI98F2q4ZVVlYu3emuVv sha512-oCf6q6djn3xmg4S2DCA/nn65EjxXE37f73P1KFYDxEHW4QuFTKxnXO5hShHXh9P3I7+xPwbIfN62ZT8FLdZY8w== <link rel="stylesheet" href="https://dakota-science.org/plugins/cbcontact/form/cbcontact.css" crossorigin="anonymous" integrity="sha256-HjEtyR4X3RKaxikzp2tJ2he2qtgAgESeceO8WSCQhJE=" />

	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/bootstrap.min.css		200		1	ok
				text/css missing X-Content-Type-Options nosniff				ok
	No Cache-Control - header			Compression required: 122540 Bytes
	ETag: "1deac-60451add918cc"
	local SRI possible, possible hash-values: sha256-MfvZlkHCEqatNoGiOXveE8FIwMzZg4W85qfrfIFBfYc= sha384-pdapHxIh7EYuwy6K7iE41uXVxGCXY0sAjBzaElYGJUrzwodck3Lx6IE2lA0rFREo sha512-dTfge/zgoMYpP7QbHy4gWMEGsbsdZeCXz7irItjcC3sPUFtf0kuFbDz/ixG7ArTxmDjLXDmezHubeNikyKGVyQ== <link rel="stylesheet" href="https://dakota-science.org/theme/DakotaScience2/css/bootstrap.min.css" crossorigin="anonymous" integrity="sha256-MfvZlkHCEqatNoGiOXveE8FIwMzZg4W85qfrfIFBfYc=" />

	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/color.css		200		1	ok
				text/css missing X-Content-Type-Options nosniff				ok
	No Cache-Control - header			Compression required: 12374 Bytes
	ETag: "3056-604a35407a692"
	local SRI possible, possible hash-values: sha256-oXMOfaAoI6d9kL5eBnwWPlvKCNubhs3vTnVH+VwPHss= sha384-/1Yao3O1PXbVvTKzSba9A0E0ChyczhwqPZ9hUnrNJyhh108PC6MQ/wjjuPt3RIpS sha512-lsKQfa8rAhpe/WhVMJbaZsIN0FSZK8DCwu1mqkj5i7/A3VWPui0VVuvAhUm2MxNb2RHJEbI9VHg5DSHR0EjMCw== <link rel="stylesheet" href="https://dakota-science.org/theme/DakotaScience2/css/color.css" crossorigin="anonymous" integrity="sha256-oXMOfaAoI6d9kL5eBnwWPlvKCNubhs3vTnVH+VwPHss=" />

	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/font-awesome.min.css		200		1	ok
				text/css missing X-Content-Type-Options nosniff				ok
	No Cache-Control - header			Compression required: 23739 Bytes
	ETag: "5cbb-60451add918cc"
	local SRI possible, possible hash-values: sha256-VBrFgheoreGl4pKmWgZh3J23pJrhNlSUOBek+8Z2Gv0= sha384-yNuQMX46Gcak2eQsUzmBYgJ3eBeWYNKhnjyiBqLd1vvtE9kuMtgw6bjwN8J0JauQ sha512-i8+QythOYyQke6XbStjt9T4yQHhhM+9Y9yTY1fOxoDQwsQpKMEpIoSQZ8mVomtnVCf9PBvoQDnKl06gGOOD19Q== <link rel="stylesheet" href="https://dakota-science.org/theme/DakotaScience2/css/font-awesome.min.css" crossorigin="anonymous" integrity="sha256-VBrFgheoreGl4pKmWgZh3J23pJrhNlSUOBek+8Z2Gv0=" />

	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/style.css		200		1	ok
				text/css missing X-Content-Type-Options nosniff				ok
	No Cache-Control - header			Compression required: 19111 Bytes
	ETag: "4aa7-604a32cadfe3d"
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	a		https://dakota-science.org/updates/				1	ok
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	link	canonical	https://dakota-science.org/404/				1	ok
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	link	stylesheet	http://fonts.googleapis.com/css?family=Open+Sans:400italic,600,400&subset=latin,cyrillic				1	http-link, change to https
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	link	stylesheet	http://fonts.googleapis.com/css?family=Open+Sans+Condensed:700&subset=latin,cyrillic				1	http-link, change to https
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	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/bootstrap.min.css		200		1	ok
				text/css missing X-Content-Type-Options nosniff				ok
	No Cache-Control - header			Compression required: 122540 Bytes
	ETag: "1deac-60451add918cc"
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	ETag: "3056-604a35407a692"
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	meta	content-type	text/html;charset=utf-8				1	ok
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	meta	keywords	error				1	ok
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	meta	viewport	width=device-width, initial-scale=1.0				1	ok
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	script	src	https://dakota-science.org/theme/DakotaScience2/js/bootstrap.min.js		200		1	Problems with Content-Type - Header - see details
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	ETag: "8fd0-60451add918cc"
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	script	src	https://dakota-science.org/theme/DakotaScience2/js/custom.js		200		1	Problems with Content-Type - Header - see details
	Missing defer / async attribute.			application/javascript missing X-Content-Type-Options nosniff		This Combination of MediaType "application" and MediaSubType "javascript" is obsolete. Don't use it. See https://www.iana.org/assignments/media-types/media-types.xhtml to find a correct Combination. Use "text/javascript" instead.		Problems with Content-Type - Header - see details
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	ETag: "1ab-60451add918cc"
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	script	src	https://dakota-science.org/theme/DakotaScience2/js/jquery.min.js		200		1	Problems with Content-Type - Header - see details
	Missing defer / async attribute.			application/javascript missing X-Content-Type-Options nosniff		This Combination of MediaType "application" and MediaSubType "javascript" is obsolete. Don't use it. See https://www.iana.org/assignments/media-types/media-types.xhtml to find a correct Combination. Use "text/javascript" instead.		Problems with Content-Type - Header - see details
	No Cache-Control - header			Compression required: 95957 Bytes
	ETag: "176d5-60451add918cc"
	local SRI possible, possible hash-values: sha256-7LkWEzqTdpEfELxcZZlS6wAx5Ff13zZ83lYO2/ujj7g= sha384-+54fLHoW8AHu3nHtUxs9fW2XKOZ2ZwKHB5olRtKSDTKJIb1Na1EceFZMS8E72mzW sha512-xAERw8wHVOkM9x9y9/FvQ7g1t+gIQj39mfkN1Rd1OLcC5k/x2e6NO8hq6qEbb3oO+CYYTjVLFiFYg5/7ddF0zA== <script src="https://dakota-science.org/theme/DakotaScience2/js/jquery.min.js" crossorigin="anonymous" integrity="sha256-7LkWEzqTdpEfELxcZZlS6wAx5Ff13zZ83lYO2/ujj7g=" />

	script	src	https://dakota-science.org/theme/DakotaScience2/js/jquery-migrate-1.2.1.min.js		200		1	Problems with Content-Type - Header - see details
	Missing defer / async attribute.			application/javascript missing X-Content-Type-Options nosniff		This Combination of MediaType "application" and MediaSubType "javascript" is obsolete. Don't use it. See https://www.iana.org/assignments/media-types/media-types.xhtml to find a correct Combination. Use "text/javascript" instead.		Problems with Content-Type - Header - see details
	No Cache-Control - header			Compression required: 7199 Bytes
	ETag: "1c1f-60451add918cc"
	local SRI possible, possible hash-values: sha256-HmfY28yh9v2U4HfIXC+0D6HCdWyZI42qjaiCFEJgpo0= sha384-9tt8DlZQhE63eBuKml9tnMclfDeo/8/wstzUrBQStZZkCCvwfw78IiV+r9o600g2 sha512-e2ikOiKkFASi/1jg2mojdJLK0Pw+VtIWmAgCtNX7SDiVJip+BJNA1mcAAr34mbqIwxkjnmDQquGsMdmFVrCtbg== <script src="https://dakota-science.org/theme/DakotaScience2/js/jquery-migrate-1.2.1.min.js" crossorigin="anonymous" integrity="sha256-HmfY28yh9v2U4HfIXC+0D6HCdWyZI42qjaiCFEJgpo0=" />

	script	src	https://dakota-science.org/theme/DakotaScience2/js/modernizr.js		200		1	Problems with Content-Type - Header - see details
	Missing defer / async attribute.			application/javascript missing X-Content-Type-Options nosniff		This Combination of MediaType "application" and MediaSubType "javascript" is obsolete. Don't use it. See https://www.iana.org/assignments/media-types/media-types.xhtml to find a correct Combination. Use "text/javascript" instead.		Problems with Content-Type - Header - see details
	No Cache-Control - header			0 Bytes
	ETag: "0-60451add918cc"
	local SRI possible, possible hash-values: sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU= sha384-OLBgp1GsljhM2TJ+sbHjaiH9txEUvgdDTAzHv2P24donTt6/529l+9Ua0vFImLlb sha512-z4PhNX7vuL3xVChQ1m2AB9Yg5AULVxXcg/SpIdNs6c5H0NE8XYXysP+DGNKHfuwvY7kxvUdBeoGlODJ6+SfaPg== <script src="https://dakota-science.org/theme/DakotaScience2/js/modernizr.js" crossorigin="anonymous" integrity="sha256-47DEQpj8HBSa+/TImW+5JCeuQeRkm5NMpJWZG3hSuFU=" />

https://54.152.53.125/ 54.152.53.125	a		#				1	ok
								ok


	a		https://dakota-science.org/				2	ok
								ok


	a		https://dakota-science.org//admin				1	ok
								ok


	a		https://dakota-science.org/about-dsc				1	ok
								ok


	a		https://dakota-science.org/about-dsc/				1	ok
								ok


	a		https://dakota-science.org/contact				1	ok
								ok


	a		https://dakota-science.org/contact/				1	ok
								ok


	a		https://dakota-science.org/projects/				1	ok
								ok


	a		https://dakota-science.org/resources				1	ok
								ok


	a		https://dakota-science.org/resources/				1	ok
								ok


	a		https://dakota-science.org/updates/				1	ok
								ok


	a		https://www.facebook.com/profile.php?id=100064553295680				1	ok
								ok


	a		mailto:Dakota.Science@gmail.com				1	ok
								ok


	img	src	https://dakota-science.org/theme/DakotaScience2/images/DSC_64_White.png				1	ok
	alt: Logo image							ok


	link	canonical	https://dakota-science.org/				1	ok
								ok


	link	icon	favicon.ico				1	ok
								ok


	link	stylesheet	http://fonts.googleapis.com/css?family=Open+Sans:400italic,600,400&subset=latin,cyrillic				1	http-link, change to https
								http-link, change to https


	link	stylesheet	http://fonts.googleapis.com/css?family=Open+Sans+Condensed:700&subset=latin,cyrillic				1	http-link, change to https
								http-link, change to https


	link	stylesheet	https://dakota-science.org/plugins/carouselCreator/style/style-1.css				1	ok
								ok


	link	stylesheet	https://dakota-science.org/plugins/cbcontact/form/cbcontact.css				1	ok
								ok


	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/bootstrap.min.css				1	ok
								ok


	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/color.css				1	ok
								ok


	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/font-awesome.min.css				1	ok
								ok


	link	stylesheet	https://dakota-science.org/theme/DakotaScience2/css/style.css				1	ok
								ok


	meta	charset	utf-8				1	ok
								ok


	meta	content-type	text/html;charset=utf-8				1	ok
								ok


	meta	X-UA-Compatible	IE=edge				1	ok
								ok


	meta	description	Dakota Science Center Home				1	ok
								ok


	meta	keywords	Dakota Science Center Home				1	ok
								ok


	meta	viewport	width=device-width, initial-scale=1.0				1	ok
								ok


	script	src	https://dakota-science.org/plugins/carouselCreator/js/swipe.min.js				1	ok
	Missing defer / async attribute.							ok


	script	src	https://dakota-science.org/theme/DakotaScience2/js/bootstrap.min.js				1	ok
	Missing defer / async attribute.							ok


	script	src	https://dakota-science.org/theme/DakotaScience2/js/custom.js				1	ok
	Missing defer / async attribute.							ok


	script	src	https://dakota-science.org/theme/DakotaScience2/js/jquery.min.js				1	ok
	Missing defer / async attribute.							ok


	script	src	https://dakota-science.org/theme/DakotaScience2/js/jquery-migrate-1.2.1.min.js				1	ok
	Missing defer / async attribute.							ok


	script	src	https://dakota-science.org/theme/DakotaScience2/js/modernizr.js				1	ok
	Missing defer / async attribute.							ok

12. Html-Parsing via https://validator.w3.org/nu/

	Type	Message	num found
Url used (first standard-https-result with http status 200): https://dakota-science.org/

Summary
	Good: No non-document-errors
	5 errors
	12 warnings
1.	error	Unclosed element `div`.	2
2.	error	A document must not include both a `meta` element with an `http-equiv` attribute whose value is `content-type`, and a `meta` element with a `charset` attribute.	1
3.	error	Start tag `head` seen but an element of the same type was already open.	1
4.	error	End tag for `body` seen, but there were unclosed elements.	1
5.	warning	The `type` attribute is unnecessary for JavaScript resources.	5
6.	warning	Empty heading.	4
7.	warning	The `navigation` role is unnecessary for element `nav`.	1
8.	warning	This document has heading elements but none of them has a computed heading level of 1.	1
9.	warning	Section lacks heading. Consider using `h2`-`h6` elements to add identifying headings to all sections, or else use a `div` element instead for any cases where no heading is needed.	1
Details
	Type	Message + Sample
1	error	A document must not include both a `meta` element with an `http-equiv` attribute whose value is `content-type`, and a `meta` element with a `charset` attribute.
		From line 5, column 1 to line 5, column 68
		IE=edge"> <meta http-equiv="content-type" content="text/html;charset=utf-8" /> <meta
2	error	Start tag `head` seen but an element of the same type was already open.
		From line 7, column 2 to line 7, column 7
		le=1.0"> <head> <ti
3	error	Unclosed element `div`.
		From line 107, column 3 to line 107, column 19
		der --> <div id="slider">
4	error	Unclosed element `div`.
		From line 109, column 104 to line 109, column 167
		le-1.css"><div class="slider-container" id="TestSlide" style="width:100%"><div i
5	error	End tag for `body` seen, but there were unclosed elements.
		From line 299, column 2 to line 299, column 8
		pt> </body> </ht
6	warning	The `type` attribute is unnecessary for JavaScript resources.
		From line 10, column 3 to line 10, column 103
		n.ico"> <script type="text/javascript" src="https://dakota-science.org/theme/DakotaScience2/js/modernizr.js"></scri
7	warning	The `type` attribute is unnecessary for JavaScript resources.
		From line 25, column 3 to line 25, column 104
		ipt --> <script type="text/javascript" src="https://dakota-science.org/theme/DakotaScience2/js/jquery.min.js"></scri
8	warning	The `type` attribute is unnecessary for JavaScript resources.
		From line 26, column 3 to line 26, column 118
		script> <script type="text/javascript" src="https://dakota-science.org/theme/DakotaScience2/js/jquery-migrate-1.2.1.min.js"></scri
9	warning	The `navigation` role is unnecessary for element `nav`.
		From line 62, column 3 to line 62, column 60
		bar --> <nav class="navbar bg-color-lightblack" role="navigation"> <!
10	warning	Empty heading.
		From line 110, column 112 to line 110, column 115
		-content"><h4></h4><
11	warning	This document has heading elements but none of them has a computed heading level of 1.
		From line 110, column 112 to line 110, column 115
		-content"><h4></h4><
12	warning	Empty heading.
		From line 111, column 112 to line 111, column 115
		-content"><h4></h4><
13	warning	Empty heading.
		From line 112, column 112 to line 112, column 115
		-content"><h4></h4><
14	warning	Empty heading.
		From line 113, column 112 to line 113, column 115
		-content"><h4></h4><
15	warning	Section lacks heading. Consider using `h2`-`h6` elements to add identifying headings to all sections, or else use a `div` element instead for any cases where no heading is needed.
		From line 141, column 3 to line 141, column 34
		ite --> <section class="bg-color-white">
16	warning	The `type` attribute is unnecessary for JavaScript resources.
		From line 296, column 3 to line 296, column 107
		</a> <script type="text/javascript" src="https://dakota-science.org/theme/DakotaScience2/js/bootstrap.min.js"></scri
17	warning	The `type` attribute is unnecessary for JavaScript resources.
		From line 297, column 3 to line 297, column 100
		script> <script type="text/javascript" src="https://dakota-science.org/theme/DakotaScience2/js/custom.js"></scri

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns49.worldnic.com, ns50.worldnic.com

QNr.	Domain	Type	NS used
1	com	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
2	ns49.worldnic.com	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: heidi.ns.cloudflare.com, rex.ns.cloudflare.com
	Answer: heidi.ns.cloudflare.com 108.162.194.236, 162.159.38.236, 172.64.34.236, 2606:4700:50::a29f:26ec, 2803:f800:50::6ca2:c2ec, 2a06:98c1:50::ac40:22ec
	Answer: rex.ns.cloudflare.com 108.162.195.13, 162.159.44.13, 172.64.35.13, 2606:4700:58::a29f:2c0d, 2803:f800:50::6ca2:c30d, 2a06:98c1:50::ac40:230d
3	ns50.worldnic.com	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: heidi.ns.cloudflare.com, rex.ns.cloudflare.com
	Answer: heidi.ns.cloudflare.com 108.162.194.236, 162.159.38.236, 172.64.34.236, 2606:4700:50::a29f:26ec, 2803:f800:50::6ca2:c2ec, 2a06:98c1:50::ac40:22ec
	Answer: rex.ns.cloudflare.com 108.162.195.13, 162.159.44.13, 172.64.35.13, 2606:4700:58::a29f:2c0d, 2803:f800:50::6ca2:c30d, 2a06:98c1:50::ac40:230d
4	ns49.worldnic.com: 162.159.26.111	A	heidi.ns.cloudflare.com (2606:4700:50::a29f:26ec)
5	ns49.worldnic.com: No AAAA record found	AAAA	heidi.ns.cloudflare.com (2606:4700:50::a29f:26ec)
6	ns50.worldnic.com: 162.159.27.50	A	heidi.ns.cloudflare.com (2606:4700:50::a29f:26ec)
7	ns50.worldnic.com: No AAAA record found	AAAA	heidi.ns.cloudflare.com (2606:4700:50::a29f:26ec)

14. CAA - Entries

Domainname	Value	∑ Queries
www.dakota-science.org	no CAA entry found	1
dakota-science.org	no CAA entry found	1
org	no CAA entry found	1

15. TXT - Entries

Domainname	Status	∑ Queries
dakota-science.org	ok	1
www.dakota-science.org	ok	1
_acme-challenge.dakota-science.org	missing entry or wrong length	1
_acme-challenge.www.dakota-science.org	Name Error - The domain name does not exist	1
_acme-challenge.dakota-science.org.dakota-science.org	perhaps wrong	1
_acme-challenge.www.dakota-science.org.dakota-science.org	perhaps wrong	1
_acme-challenge.www.dakota-science.org.www.dakota-science.org	Name Error - The domain name does not exist	1

16. DomainService - Entries

Type		Domain	Pref	Value	num Answers	Status
MX		dakota-science.org	10	507692ce.21.ik2.com	2	ok
	A			64.38.239.83	4	ok
	A			207.81.189.178	4	ok
	A			162.213.157.172	4	ok
	A			38.246.57.230	4	ok
	CNAME				0	ok
MX		dakota-science.org	20	507692ce.22.ik2.io	2	ok
	A			38.246.57.226	2	ok
	A			64.38.239.82	2	ok
	CNAME				0	ok

17. Cipher Suites

Summary
Domain	IP	Port	num Ciphers	time	Std.Protocol	Forward Secrecy
dakota-science.org	54.152.53.125	443	8 Ciphers	90.95 sec		0 without, 8 FS	100.00 %
www.dakota-science.org	54.152.53.125	443	8 Ciphers	90.70 sec		0 without, 8 FS	100.00 %
Complete		2	16 Ciphers 8.00 Ciphers/Check	181.65 sec	90.83 sec/Check	0 without, 16 FS	100.00 %

Details
Domain	IP	Port	Cipher (OpenSsl / IANA)
dakota-science.org	54.152.53.125	443	ECDHE-ECDSA-CHACHA20-POLY1305		(Recommended)	TLSv1.2	0xCC,0xA9	FS
8 Ciphers, 90.95 sec			TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		ECDSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-ECDSA-AES256-GCM-SHA384		(Recommended)	TLSv1.2	0xC0,0x2C	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
			ECDH		ECDSA	AESGCM(256)	AEAD
			ECDHE-ECDSA-AES128-GCM-SHA256		(Recommended)	TLSv1.2	0xC0,0x2B	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
			ECDH		ECDSA	AESGCM(128)	AEAD
			ECDHE-ECDSA-AES256-CCM		(Secure)	TLSv1.2	0xC0,0xAD	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_CCM
			ECDH		ECDSA	AESCCM(256)	AEAD
			ECDHE-ECDSA-AES128-CCM		(Secure)	TLSv1.2	0xC0,0xAC	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_CCM
			ECDH		ECDSA	AESCCM(128)	AEAD
			ECDHE-ECDSA-AES128-SHA256		(Weak)	TLSv1.2	0xC0,0x23	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
			ECDH		ECDSA	AES(128)	SHA256
			ECDHE-ECDSA-AES256-SHA		(Weak)	TLSv1	0xC0,0x0A	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
			ECDH		ECDSA	AES(256)	SHA1
			ECDHE-ECDSA-AES128-SHA		(Weak)	TLSv1	0xC0,0x09	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
			ECDH		ECDSA	AES(128)	SHA1
www.dakota-science.org	54.152.53.125	443	ECDHE-ECDSA-CHACHA20-POLY1305		(Recommended)	TLSv1.2	0xCC,0xA9	FS
8 Ciphers, 90.70 sec			TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		ECDSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-ECDSA-AES256-GCM-SHA384		(Recommended)	TLSv1.2	0xC0,0x2C	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
			ECDH		ECDSA	AESGCM(256)	AEAD
			ECDHE-ECDSA-AES128-GCM-SHA256		(Recommended)	TLSv1.2	0xC0,0x2B	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
			ECDH		ECDSA	AESGCM(128)	AEAD
			ECDHE-ECDSA-AES256-CCM		(Secure)	TLSv1.2	0xC0,0xAD	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_CCM
			ECDH		ECDSA	AESCCM(256)	AEAD
			ECDHE-ECDSA-AES128-CCM		(Secure)	TLSv1.2	0xC0,0xAC	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_CCM
			ECDH		ECDSA	AESCCM(128)	AEAD
			ECDHE-ECDSA-AES128-SHA256		(Weak)	TLSv1.2	0xC0,0x23	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
			ECDH		ECDSA	AES(128)	SHA256
			ECDHE-ECDSA-AES256-SHA		(Weak)	TLSv1	0xC0,0x0A	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
			ECDH		ECDSA	AES(256)	SHA1
			ECDHE-ECDSA-AES128-SHA		(Weak)	TLSv1	0xC0,0x09	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
			ECDH		ECDSA	AES(128)	SHA1

18. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.

Permalink: https://check-your-website.server-daten.de/?i=d7e74c9e-90ab-47cf-8f0c-642649ed3d83

Last Result: https://check-your-website.server-daten.de/?q=dakota-science.org - 2026-07-08 00:26:05

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

Older results

1. IP-Addresses

2. DNSSEC

3. Name Servers

4. SOA-Entries

5. Screenshots

Mobile- and other Chrome-Checks

6. Url-Checks

7. Comments

1. General Results, most used to calculate the result

2. Header-Checks

3. DNS- and NameServer - Checks

4. Content- and Performance-critical Checks

8. Connections

9. Certificates

10. Last Certificates - Certificate Transparency Log Check

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

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

11. Html-Content - Entries

Summary

Details (currently limited to 500 rows - some problems with spam users)

12. Html-Parsing via https://validator.w3.org/nu/

Summary

Details

13. Nameserver - IP-Adresses

14. CAA - Entries

15. TXT - Entries

16. DomainService - Entries

17. Cipher Suites

18. Portchecks