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Tls-Protocol error

Checked:
03.10.2025 08:27:42

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1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
gideon.com	A	3.33.251.168 Montreal/Quebec/Canada (CA) - Amazon.com, Inc. Hostname: aec037177372cc6cd.awsglobalaccelerator.com	yes	1	0
	A	15.197.225.128 Montreal/Quebec/Canada (CA) - Amazon.com, Inc. Hostname: aec037177372cc6cd.awsglobalaccelerator.com	yes	1	0
	AAAA		yes
www.gideon.com		Name Error	yes	1	0
*.gideon.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


	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 46441, Flags 256


	Public Key with Algorithm 8, KeyTag 61809, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.10.2025, 00:00:00 +, Signature-Inception: 01.10.2025, 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 13, KeyTag 19718, DigestType 2 and Digest isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 16.10.2025, 05:00:00 +, Signature-Inception: 03.10.2025, 04:00:00 +, KeyTag 61809, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 61809 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 13, KeyTag 19718, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 20545, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner com., Algorithm: 13, 1 Labels, original TTL: 86400 sec, Signature-expiration: 14.10.2025, 14:02:35 +, Signature-Inception: 29.09.2025, 13:57:35 +, KeyTag 19718, Signer-Name: com


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 19718 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 19718, DigestType 2 and Digest "isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: gideon.com
gideon.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 "842edhudk7a3ehoh588crutbv14g7i30" between the hashed NSEC3-owner "842eavel8muscr2eg66f5mft9dpdv07s" and the hashed NextOwner "842enmr8f65ckd1ggh1nfj1sqpe24pgu". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 842eavel8muscr2eg66f5mft9dpdv07s.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 10.10.2025, 01:09:53 +, Signature-Inception: 02.10.2025, 23:59:53 +, KeyTag 20545, 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 "ck0q3udg8cekkae7rukpgct1dvssh8ll". So that domain name is the Closest Encloser of "gideon.com". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 10.10.2025, 00:26:19 +, Signature-Inception: 02.10.2025, 23:16:19 +, KeyTag 20545, Signer-Name: com


	0 DNSKEY RR found




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

3. Name Servers

Domain	Nameserver	NS-IP
www.gideon.com	• pdns13.domaincontrol.com
gideon.com	• pdns13.domaincontrol.com / hex:0D 70 32 31	97.74.110.56 Tempe/Arizona/United States (US) - Host Europe GmbH	•
	• pdns14.domaincontrol.com / hex:0D 70 30 32	173.201.78.56 Tempe/Arizona/United States (US) - Host Europe GmbH	•
com	• a.gtld-servers.net / nnn1-par6		•
	• b.gtld-servers.net / nnn1-elwaw4		•
	• c.gtld-servers.net / nnn1-par6		•
	• d.gtld-servers.net / nnn1-par6		•
	• e.gtld-servers.net / nnn1-par6		•
	• f.gtld-servers.net / nnn1-ham3		•
	• g.gtld-servers.net / nnn1-ham4		•
	• h.gtld-servers.net / nnn1-ham2		•
	• i.gtld-servers.net / nnn1-wie3		•
	• j.gtld-servers.net / nnn1-frmrs-2		•
	• k.gtld-servers.net / nnn1-frmrs-2		•
	• l.gtld-servers.net / nnn1-frmrs-2		•
	• m.gtld-servers.net / nnn1-frmrs-2		•

4. SOA-Entries

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1759472824
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	1

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1759472824
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	1

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1759472839
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	7

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1759472839
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	7

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1759472854
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	5

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1759472854
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	5

Domain:	gideon.com
Zone-Name:	gideon.com
Primary:	pdns13.domaincontrol.com
Mail:	dns.jomax.net
Serial:	2025051300
Refresh:	28800
Retry:	7200
Expire:	604800
TTL:	600
num Entries:	2

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

5. Screenshots

Startaddress: https://gideon.health/, address used: https://gideon.health/, Screenshot created 2025-10-03 08:29:47 +00:0

Mobil (412px x 732px)

1124 milliseconds

Screenshot mobile - https://gideon.health/

Mobil + Landscape (732px x 412px)

1120 milliseconds

Screenshot mobile landscape - https://gideon.health/

Screen (1280px x 1680px)

1561 milliseconds

Screenshot Desktop - https://gideon.health/

Mobile- and other Chrome-Checks

	width	height
visual Viewport	412	732
content Size	412	732

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

6. Url-Checks

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://gideon.com/ 3.33.251.168	301	http://www.gideon.health/ Html is minified: 103.51 %	0.050	D
Date: Fri, 03 Oct 2025 06:28:22 GMT
Connection: keep-alive
Location: http://www.gideon.health/
Server: ip-100-74-4-207.eu-west-2.compute.internal
Vary: Accept-Encoding
X-Request-ID: bf605cdc-11fe-4530-b775-d49ad475d280
Content-Type: text/html; charset=utf-8
Content-Length: 59

• http://gideon.com/ 15.197.225.128	301	http://www.gideon.health/ Html is minified: 103.51 %	0.054	D
Date: Fri, 03 Oct 2025 06:28:22 GMT
Connection: keep-alive
Location: http://www.gideon.health/
Server: ip-100-74-4-165.eu-west-2.compute.internal
Vary: Accept-Encoding
X-Request-ID: 6ba04bfd-f404-4680-93dd-b7593e448fca
Content-Type: text/html; charset=utf-8
Content-Length: 59

• http://www.gideon.health/	301	https://gideon.health/ Html is minified: 109.46 %	0.307	E
Connection: keep-alive
Server: GitHub.com
Location: https://gideon.health/
X-GitHub-Request-Id: 417C:23049E:1ABA90C:1AE84C3:68DF6D07
Accept-Ranges: bytes
Age: 0
Date: Fri, 03 Oct 2025 06:28:23 GMT
Via: 1.1 varnish
X-Served-By: cache-fra-eddf8230042-FRA
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1759472904.612893,VS0,VE99
Vary: Accept-Encoding
X-Fastly-Request-ID: 47805dc12197a0f662dc509ab5fe4d6f0f6ce3f1
Content-Length: 162
Content-Type: text/html

• https://gideon.com/ 3.33.251.168	-103		0.060	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Authentication failed because the remote party sent a TLS alert: 'ProtocolVersion' Only Tls.1.3 allowed? That's bad, allow Tls.1.2.

• https://gideon.com/ 15.197.225.128	-103		0.066	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Authentication failed because the remote party sent a TLS alert: 'ProtocolVersion' Only Tls.1.3 allowed? That's bad, allow Tls.1.2.

• https://gideon.health/ gzip used - 754 / 2165 - 65.17 % Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	200	Html is minified: 117.03 % Other inline scripts (∑/total): 0/0	2.587	A
Connection: keep-alive
Server: GitHub.com
Access-Control-Allow-Origin: *
Strict-Transport-Security: max-age=31556952
ETag: W/"5f6d8173-875"
Cache-Control: max-age=600
x-proxy-cache: MISS
X-GitHub-Request-Id: E15F:229741:17BDF5B:17E5763:68DF50E9
Accept-Ranges: bytes
Age: 0
Date: Fri, 03 Oct 2025 06:28:23 GMT
Via: 1.1 varnish
X-Served-By: cache-fra-eddf8230056-FRA
X-Cache: HIT
X-Cache-Hits: 0
X-Timer: S1759472904.820670,VS0,VE113
Vary: Accept-Encoding
X-Fastly-Request-ID: b5af82a13f57203112e5f3da1168244bf096ada7
Content-Length: 754
Content-Type: text/html; charset=utf-8
Last-Modified: Fri, 25 Sep 2020 05:34:43 GMT
Expires: Fri, 03 Oct 2025 04:38:26 GMT
Content-Encoding: gzip

• http://gideon.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 3.33.251.168	403		0.026	M
Forbidden
Visible Content:
Server: awselb/2.0
Date: Fri, 03 Oct 2025 06:28:23 GMT
Connection: keep-alive
WAFRule: 4
Content-Length: 0

• http://gideon.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 15.197.225.128	403		0.030	M
Forbidden
Visible Content:
Server: awselb/2.0
Date: Fri, 03 Oct 2025 06:28:23 GMT
Connection: keep-alive
WAFRule: 4
Content-Length: 0

• https://3.33.251.168/ 3.33.251.168	-103		0.057	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Authentication failed because the remote party sent a TLS alert: 'ProtocolVersion' Only Tls.1.3 allowed? That's bad, allow Tls.1.2.

• https://15.197.225.128/ 15.197.225.128	-103		0.060	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Authentication failed because the remote party sent a TLS alert: 'ProtocolVersion' Only Tls.1.3 allowed? That's bad, allow Tls.1.2.

7. Comments

	1. General Results, most used to calculate the result
A	name "gideon.com" is domain, 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: 108094 (complete: 276475)
A	Good: All ip addresses are public addresses
A	Good: Minimal 2 ip addresses per domain name found: gideon.com has 2 different ip addresses (authoritative).
	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: gideon.com has no ipv6 address.
A	Good: No asked Authoritative Name Server had a timeout
A	DNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
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.
D	http://gideon.com/ 3.33.251.168	301	http://www.gideon.health/	Wrong redirect one domain http to other domain http. First redirect to https without changing the domain, so no new dns query is required. 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.
D	http://gideon.com/ 15.197.225.128	301	http://www.gideon.health/	Wrong redirect one domain http to other domain http. First redirect to https without changing the domain, so no new dns query is required. 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.
E	http://www.gideon.health/	301	https://gideon.health/	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.
A	Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain gideon.com, 2 ip addresses.
	Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain gideon.com, 2 ip addresses.
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.gideon.com
	2. Header-Checks
F	gideon.health	Content-Security-Policy		Critical: Missing Header:
F	gideon.health	X-Content-Type-Options		Critical: Missing Header:
F	gideon.health	Referrer-Policy		Critical: Missing Header:
F	gideon.health	Permissions-Policy		Critical: Missing Header:
B	gideon.health	Cross-Origin-Embedder-Policy		Info: Missing Header
B	gideon.health	Cross-Origin-Opener-Policy		Info: Missing Header
B	gideon.health	Cross-Origin-Resource-Policy		Info: Missing Header
	3. DNS- and NameServer - Checks
A	Info:: 26 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
A	Info:: 26 Queries complete, 26 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
	Bad (greater 8):: An average of 13.0 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 2 different Name Servers found: pdns13.domaincontrol.com, pdns14.domaincontrol.com, 2 Name Servers included in Delegation: pdns13.domaincontrol.com, pdns14.domaincontrol.com, 2 Name Servers included in 1 Zone definitions: pdns13.domaincontrol.com, pdns14.domaincontrol.com, 1 Name Servers listed in SOA.Primary: pdns13.domaincontrol.com.
A	Good: Only one SOA.Primary Name Server found.: pdns13.domaincontrol.com.
A	Good: SOA.Primary Name Server included in the delegation set.: pdns13.domaincontrol.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: pdns13.domaincontrol.com, pdns14.domaincontrol.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: domaincontrol.com
	Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: US
A	Info: Ipv4-Subnet-list: 2 Name Servers, 2 different subnets (first Byte): 173., 97., 2 different subnets (first two Bytes): 173.201., 97.74., 2 different subnets (first three Bytes): 173.201.78., 97.74.110.
A	Excellent: Every Name Server IPv4-address starts with an unique Byte.
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
	Nameserver doesn't pass all EDNS-Checks: pdns13.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.
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
	http://gideon.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 3.33.251.168	403		Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 401 / 403 Not Allowed / Forbidden. A http status 404 - Not Found - is expected. Creating a Letsencrypt certificate via http-01 challenge may not work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
	http://gideon.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 15.197.225.128	403		Fatal: Check of /.well-known/acme-challenge/random-filename has a http status 401 / 403 Not Allowed / Forbidden. A http status 404 - Not Found - is expected. Creating a Letsencrypt certificate via http-01 challenge may not work. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
A	Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
A	Good: No https + http status 200 with inline CSS / JavaScript found
	https://gideon.health/	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.
A	Good: Every https connection via port 443 supports the http/2 protocol via ALPN.
A	Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 1 external CSS / JavaScript files found
A	Good: All svg-Images greater 1024 Bytes without internal compression are compressed. Svg is an Xml-Application, so Compression reduces the size of the file. 1 images (type image/svg+xml, image/x-icon, image/vnd.microsoft.icon) found with compression.
	Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 1 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 1 complete.
	Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 1 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 1 complete.
A	Good: All checked attribute values are enclosed in quotation marks (" or ').
A	Good: All img-elements have a valid alt-attribute.: 1 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
A	Info: Different Server-Headers found
A	Duration: 132490 milliseconds, 132.490 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

gideon.health

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

gideon.health

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

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

http/2 via ALPN supported

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

Chain (complete)	1	CN=gideon.health
	2	CN=R12, O=Let's Encrypt, C=US

9. Certificates

CN=gideon.health

29.08.2025

27.11.2025
expires in 21 days

gideon.health - 1 entry

CN=gideon.health

29.08.2025

27.11.2025
expires in 21 days

gideon.health - 1 entry

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	067CE27D92C4D0D009E3BEF398328FC43D57
Thumbprint:	AFAF175858026E69C343AF29F1DD34DB1A08FED9
SHA256 / Certificate:	IMOc+QW2EsZ+ubc1WcIwrQ0onFO6HRGmNJ6lS/J6IAY=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	0d073b9b73b4b0ee16e3f580e521c7b6c7aa20a48a764a758e1b31dff5043d90
SHA256 hex / Subject Public Key Information (SPKI):	0d073b9b73b4b0ee16e3f580e521c7b6c7aa20a48a764a758e1b31dff5043d90 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
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)

CN=R12, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 492 days

CN=R12, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 492 days

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	00C212324B70A9B49171DC40F7E285263C
Thumbprint:	EE44782835D8FB31394DA5CEB840DC93849BCF5A
SHA256 / Certificate:	Ex/Od4QBaJmloAIDqe/IDxjrvXVYBxftwVU1gJMINuw=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	919c0df7a787b597ed056ace654b1de9c0387acf349f73734a4fd7b58cf612a4
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 3497 days

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

04.06.2015

04.06.2035
expires in 3497 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)

Issuer				last 7 days	active	num Certs
//certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2				0	1	1

CertSpotter-Id	Issuer	not before	not after	Domain names	LE-Duplicate	next LE
10407444270 leaf cert	//certs.godaddy.com/repository/, CN=Go Daddy Secure Certificate Authority - G2	2025-05-14 01:19:22	2026-05-14 01:19:22	gideon.com - 1 entries

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://gideon.health/	a		1		0			0	0	0
	img		1	7,499 Bytes	0	1	0	0	0	0
	link	stylesheet	1	942 Bytes	0	1	0	0	0	0
	link	other	3	6,818 Bytes	0	3	0	0	0	0
	meta	twitter	3		0			0	0	0
	meta	other	13		0			0	0	0
	video		1		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	∑
https://gideon.health/	a		mailto:jobs@gideon.health			1	ok
							ok


	img	src	assets/typeface-logo-with-subtitle.svg		200	1	ok
	alt: typeface-logo			image/svg+xml missing X-Content-Type-Options nosniff			ok
	Cache-Control: max-age=600 - max-age too short.			Compression (gzip): 7499/23069 Bytes
	ETag: W/"5f6d8173-5a1d"

	link	apple-touch-icon	assets/favicon/apple-touch-icon.png		200	1	ok
				image/png missing X-Content-Type-Options nosniff			ok
	Cache-Control: max-age=600 - max-age too short.			No Compression - 5555 Bytes
	ETag: "5f6d8173-15b3"

	link	icon	assets/favicon/favicon-16x16.png		200	1	ok
				image/png missing X-Content-Type-Options nosniff			ok
	Cache-Control: max-age=600 - max-age too short.			No Compression - 448 Bytes
	ETag: "5f6d8173-1c0"

	link	icon	assets/favicon/favicon-32x32.png		200	1	ok
				image/png missing X-Content-Type-Options nosniff			ok
	Cache-Control: max-age=600 - max-age too short.			No Compression - 815 Bytes
	ETag: "5f6d8173-32f"

	link	stylesheet	index.css		200	1	ok
				text/css; charset=utf-8 missing X-Content-Type-Options nosniff			ok
	Cache-Control: max-age=600 - max-age too short.			Compression (gzip): 942/3163 Bytes
	ETag: W/"5f6d8173-c5b"
	local SRI possible, possible hash-values: sha256-kzRJpg5IFJ1ZkcPLJWZ3ShVu3JYpqD2OrRlDQMb8fhk= sha384-rWn75ABGxUx4NPeVMWj6lqbnxbgvwJSsOw8rSFDoXnn8eJGP24PmaxsWb5cBjXki sha512-zk9x+KiB77OC7T1Dw6ixN4KTIJd9XMOt1882cjfKXrL9qk8hvqZrno+UG39MYmRqt0yCPTCrd8/fIxi+76lPnQ== <link rel="stylesheet" href="index.css" crossorigin="anonymous" integrity="sha256-kzRJpg5IFJ1ZkcPLJWZ3ShVu3JYpqD2OrRlDQMb8fhk=" />

	meta	charset	utf-8			1	ok
							ok


	meta		A new vision for mind-body health			1	ok
							ok


	meta		Gideon Health			1	ok
							ok


	meta		https://res.cloudinary.com/dplnvyrgn/image/upload/v1585762084/social-logo_tkeqfv.png			1	ok
							ok


	meta	description	A new vision for mind-body health			1	ok
							ok


	meta	image	https://res.cloudinary.com/dplnvyrgn/image/upload/v1585762084/social-logo_tkeqfv.png			1	ok
							ok


	meta	og:description	A new vision for mind-body health			1	ok
							ok


	meta	og:image	https://res.cloudinary.com/dplnvyrgn/image/upload/v1585762084/social-logo_tkeqfv.png			1	ok
							ok


	meta	og:site_name	Gideon Health			1	ok
							ok


	meta	og:title	Gideon Health			1	ok
							ok


	meta	og:type	website			1	ok
							ok


	meta	og:url	https://gideon.health			1	ok
							ok


	meta	twitter:card	summary			1	ok
							ok


	meta	twitter:description	A new vision for mind-body health			1	ok
							ok


	meta	twitter:title	Gideon Health			1	ok
							ok


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


	video					1	ok
							ok


		• source	assets/background-video-swarm-314.mp4 video/mp4		200	1	ok
				video/mp4 missing X-Content-Type-Options nosniff			ok
				13182038 Bytes
	ETag: "5f6d8173-c92456"

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

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

Summary
	Good: No non-document-errors
	3 errors
	0 warnings
1.	error	The `itemprop` attribute was specified, but the element is not a property of any item.	3
Details
	Type	Message + Sample
1	error	The `itemprop` attribute was specified, but the element is not a property of any item.
		From line 17, column 5 to line 17, column 50
		e --> <meta itemprop="name" content="Gideon Health"> <
2	error	The `itemprop` attribute was specified, but the element is not a property of any item.
		From line 18, column 5 to line 18, column 77
		lth"> <meta itemprop="description" content="A new vision for mind-body health"> <
3	error	The `itemprop` attribute was specified, but the element is not a property of any item.
		From line 19, column 5 to line 19, column 122
		lth"> <meta itemprop="image" content="https://res.cloudinary.com/dplnvyrgn/image/upload/v1585762084/social-logo_tkeqfv.png"> <

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: pdns13.domaincontrol.com, pdns14.domaincontrol.com

QNr.	Domain	Type	NS used
1	com	NS	k.root-servers.net (2001:7fd::1)
	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	pdns13.domaincontrol.com	NS	a.gtld-servers.net (2001:503:a83e::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	pdns14.domaincontrol.com	NS	a.gtld-servers.net (2001:503:a83e::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, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a4-67.akam.net, a6-67.akam.net
	Answer: a1-67.akam.net 193.108.91.67, 2600:1401:2::43
	Answer: a11-67.akam.net 2600:1480:1::43, 84.53.139.67
	Answer: a12-67.akam.net 184.26.160.67, 2600:1480:f000::43
	Answer: a18-67.akam.net 2600:1480:4800::43, 95.101.36.67
	Answer: a22-67.akam.net 23.211.61.67, 2600:1480:7800::43
	Answer: a28-67.akam.net 2600:1480:d800::43, 95.100.173.67
	Answer: a4-67.akam.net 2600:1480:9000::43, 72.246.46.67
	Answer: a6-67.akam.net 23.211.133.67, 2600:1401:1::43
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, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a4-67.akam.net, a6-67.akam.net
	Answer: a1-67.akam.net 193.108.91.67, 2600:1401:2::43
	Answer: a11-67.akam.net 2600:1480:1::43, 84.53.139.67
	Answer: a12-67.akam.net 184.26.160.67, 2600:1480:f000::43
	Answer: a18-67.akam.net 2600:1480:4800::43, 95.101.36.67
	Answer: a22-67.akam.net 23.211.61.67, 2600:1480:7800::43
	Answer: a28-67.akam.net 2600:1480:d800::43, 95.100.173.67
	Answer: a4-67.akam.net 2600:1480:9000::43, 72.246.46.67
	Answer: a6-67.akam.net 23.211.133.67, 2600:1401:1::43
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, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a4-67.akam.net, a6-67.akam.net
	Answer: a1-67.akam.net 193.108.91.67, 2600:1401:2::43
	Answer: a11-67.akam.net 2600:1480:1::43, 84.53.139.67
	Answer: a12-67.akam.net 184.26.160.67, 2600:1480:f000::43
	Answer: a18-67.akam.net 2600:1480:4800::43, 95.101.36.67
	Answer: a22-67.akam.net 23.211.61.67, 2600:1480:7800::43
	Answer: a28-67.akam.net 2600:1480:d800::43, 95.100.173.67
	Answer: a4-67.akam.net 2600:1480:9000::43, 72.246.46.67
	Answer: a6-67.akam.net 23.211.133.67, 2600:1401:1::43
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, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a4-67.akam.net, a6-67.akam.net
	Answer: a1-67.akam.net 193.108.91.67, 2600:1401:2::43
	Answer: a11-67.akam.net 2600:1480:1::43, 84.53.139.67
	Answer: a12-67.akam.net 184.26.160.67, 2600:1480:f000::43
	Answer: a18-67.akam.net 2600:1480:4800::43, 95.101.36.67
	Answer: a22-67.akam.net 23.211.61.67, 2600:1480:7800::43
	Answer: a28-67.akam.net 2600:1480:d800::43, 95.100.173.67
	Answer: a4-67.akam.net 2600:1480:9000::43, 72.246.46.67
	Answer: a6-67.akam.net 23.211.133.67, 2600:1401:1::43
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, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a4-67.akam.net, a6-67.akam.net
	Answer: a1-67.akam.net 193.108.91.67, 2600:1401:2::43
	Answer: a11-67.akam.net 2600:1480:1::43, 84.53.139.67
	Answer: a12-67.akam.net 184.26.160.67, 2600:1480:f000::43
	Answer: a18-67.akam.net 2600:1480:4800::43, 95.101.36.67
	Answer: a22-67.akam.net 23.211.61.67, 2600:1480:7800::43
	Answer: a28-67.akam.net 2600:1480:d800::43, 95.100.173.67
	Answer: a4-67.akam.net 2600:1480:9000::43, 72.246.46.67
	Answer: a6-67.akam.net 23.211.133.67, 2600:1401:1::43
10	a9-67.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, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a4-67.akam.net, a6-67.akam.net
	Answer: a1-67.akam.net 193.108.91.67, 2600:1401:2::43
	Answer: a11-67.akam.net 2600:1480:1::43, 84.53.139.67
	Answer: a12-67.akam.net 184.26.160.67, 2600:1480:f000::43
	Answer: a18-67.akam.net 2600:1480:4800::43, 95.101.36.67
	Answer: a22-67.akam.net 23.211.61.67, 2600:1480:7800::43
	Answer: a28-67.akam.net 2600:1480:d800::43, 95.100.173.67
	Answer: a4-67.akam.net 2600:1480:9000::43, 72.246.46.67
	Answer: a6-67.akam.net 23.211.133.67, 2600:1401:1::43
11	a1-245.akam.net: 193.108.91.245	A	a1-67.akam.net (2600:1401:2::43)
12	a1-245.akam.net: 2600:1401:2::f5	AAAA	a1-67.akam.net (2600:1401:2::43)
13	a11-64.akam.net: 84.53.139.64	A	a1-67.akam.net (2600:1401:2::43)
14	a11-64.akam.net: 2600:1480:1::40	AAAA	a1-67.akam.net (2600:1401:2::43)
15	a20-65.akam.net: 95.100.175.65	A	a1-67.akam.net (2600:1401:2::43)
16	a20-65.akam.net: 2a02:26f0:67::41	AAAA	a1-67.akam.net (2600:1401:2::43)
17	a6-66.akam.net: 23.211.133.66	A	a1-67.akam.net (2600:1401:2::43)
18	a6-66.akam.net: 2600:1401:1::42	AAAA	a1-67.akam.net (2600:1401:2::43)
19	a8-67.akam.net: 2.16.40.67	A	a1-67.akam.net (2600:1401:2::43)
20	a8-67.akam.net: 2600:1403:a::43	AAAA	a1-67.akam.net (2600:1401:2::43)
21	a9-67.akam.net: 184.85.248.67	A	a1-67.akam.net (2600:1401:2::43)
22	a9-67.akam.net: 2a02:26f0:117::43	AAAA	a1-67.akam.net (2600:1401:2::43)
23	pdns13.domaincontrol.com: 97.74.110.56	A	a1-245.akam.net (2600:1401:2::f5)
24	pdns13.domaincontrol.com: No AAAA record found	AAAA	a1-245.akam.net (2600:1401:2::f5)
25	pdns14.domaincontrol.com: 173.201.78.56	A	a1-245.akam.net (2600:1401:2::f5)
26	pdns14.domaincontrol.com: No AAAA record found	AAAA	a1-245.akam.net (2600:1401:2::f5)

14. CAA - Entries

Domainname	flag	Name	Value	∑ Queries	∑ Timeout
gideon.com	0		no CAA entry found	1	0
com	0		no CAA entry found	1	0

15. TXT - Entries

Domainname	TXT Entry	Status	∑ Queries
gideon.com	google-site-verification=yClcVWj-TqR0bdxogsW8izocmF8RqLVB1nh0A_JBl6I	ok	1
_acme-challenge.gideon.com		Name Error - The domain name does not exist	1
_acme-challenge.gideon.com.gideon.com		Name Error - The domain name does not exist	1

16. DomainService - Entries

Type		Domain	Pref	Value	num Answers	Status
MX		gideon.com	10	aspmx.l.google.com	5	ok
	A			142.251.173.27	1	ok
	AAAA			2a00:1450:400c:c09::1a	1	ok
	CNAME				0	ok
MX		gideon.com	20	alt1.aspmx.l.google.com	5	ok
	A			192.178.213.27	1	ok
	AAAA			2a00:1450:4013:c1e::1b	1	ok
	CNAME				0	ok
MX		gideon.com	30	alt2.aspmx.l.google.com	5	ok
	A			142.250.147.26	1	ok
	AAAA			2a00:1450:4025:c01::1a	1	ok
	CNAME				0	ok
MX		gideon.com	40	aspmx2.googlemail.com	5	ok
	A			192.178.213.27	1	ok
	AAAA			2a00:1450:4013:c1e::1a	1	ok
	CNAME				0	ok
MX		gideon.com	50	aspmx3.googlemail.com	5	ok
	A			142.250.147.26	1	ok
	AAAA			2a00:1450:4025:c01::1a	1	ok
	CNAME				0	ok

17. Cipher Suites

No results

18. Portchecks

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

Permalink: https://check-your-website.server-daten.de/?i=ec21bdcf-c347-4ea9-bea2-c83a47058f30

Last Result: https://check-your-website.server-daten.de/?q=gideon.com - 2025-10-03 08:27:42

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QR-Code of this page - https://check-your-website.server-daten.de/?d=gideon.com

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