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

...

skip EDNS-Check

skip Content-Check

check links

Private IP-Address found

Checked:
09.06.2025 21:37:53

Older results

No older results found

1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
martinsramek.cz	A	10.0.0.4 No Hostname found	yes	1	0
	AAAA	2a02:2b88:1:4::17 Hluboká nad Vltavou/Jihočeský kraj/Czechia (CZ) - WEDOS Internet	yes
www.martinsramek.cz	A	10.0.0.4 No Hostname found	yes	1	0
	AAAA	2a02:2b88:1:4::17 Hluboká nad Vltavou/Jihočeský kraj/Czechia (CZ) - WEDOS Internet	yes
*.martinsramek.cz	A	10.0.0.4	yes
	AAAA	2a02:2b88:1:4::17	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


	3 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 53148, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 21.06.2025, 00:00:00 +, Signature-Inception: 31.05.2025, 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: cz
cz	1 DS RR in the parent zone found


	DS with Algorithm 13, KeyTag 20237, DigestType 2 and Digest z/Dz7NvFKcHwAxuhhAv7g1hTuSCe0eUI//SEUde3eOI=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner cz., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 22.06.2025, 17:00:00 +, Signature-Inception: 09.06.2025, 16:00:00 +, KeyTag 53148, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 53148 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 13, KeyTag 20237, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 39356, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner cz., Algorithm: 13, 1 Labels, original TTL: 3600 sec, Signature-expiration: 21.06.2025, 08:33:23 +, Signature-Inception: 07.06.2025, 07:03:23 +, KeyTag 20237, Signer-Name: cz


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 20237 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 20237, DigestType 2 and Digest "z/Dz7NvFKcHwAxuhhAv7g1hTuSCe0eUI//SEUde3eOI=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: martinsramek.cz
martinsramek.cz	1 DS RR in the parent zone found


	DS with Algorithm 13, KeyTag 33701, DigestType 2 and Digest BSEmC96nUtCi8OrBji4hJwV5weJsXa3BEXdZ153npq0=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 14.06.2025, 04:21:34 +, Signature-Inception: 31.05.2025, 02:51:34 +, KeyTag 39356, Signer-Name: cz


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 39356 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 13, KeyTag 33701, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 42838, Flags 256


	2 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 33701, Signer-Name: martinsramek.cz


	RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 33701 used to validate the DNSKEY RRSet


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 42838 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 33701, DigestType 2 and Digest "BSEmC96nUtCi8OrBji4hJwV5weJsXa3BEXdZ153npq0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone


	RRSIG Type 1 validates the A - Result: 10.0.0.4 Validated: RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	RRSIG Type 28 validates the AAAA - Result: 2A02:2B88:0001:0004:0000:0000:0000:0017 Validated: RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	CNAME-Query sends a valid NSEC RR as result with the query name "martinsramek.cz" equal the NSEC-owner "martinsramek.cz" and the NextOwner "*.martinsramek.cz". So the zone confirmes the not-existence of that CNAME RR, but the existence of that query name (minimal one RR with that name exists). Bitmap: A, NS, SOA, MX, AAAA, RRSIG, NSEC, DNSKEY Validated: RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	TXT-Query sends a valid NSEC RR as result with the query name "martinsramek.cz" equal the NSEC-owner "martinsramek.cz" and the NextOwner "*.martinsramek.cz". So the zone confirmes the not-existence of that TXT RR, but the existence of that query name (minimal one RR with that name exists). Bitmap: A, NS, SOA, MX, AAAA, RRSIG, NSEC, DNSKEY Validated: RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	TLSA-Query sends a valid NSEC RR as result with the owner name .martinsramek.cz as the Wildcard-Expansion of the Closest Encloser of the query name "_443._tcp.martinsramek.cz". So the Wildcard-Expansion of the Closest Encloser confirms that the query name is generated via wildcard expansion (NoError instead of NXDomain). TLSA-Query (_443._tcp.martinsramek.cz) sends a valid NSEC RR as result with the query name "_443._tcp.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that TLSA RR.TLSA-Query (_443._tcp.martinsramek.cz) sends a valid NSEC RR as result with the parent Wildcard "._tcp.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that Wildcard-expansion. Bitmap: A, AAAA, RRSIG, NSEC Validated: RRSIG-Owner *.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	CAA-Query sends a valid NSEC RR as result with the query name "martinsramek.cz" equal the NSEC-owner "martinsramek.cz" and the NextOwner "*.martinsramek.cz". So the zone confirmes the not-existence of that CAA RR, but the existence of that query name (minimal one RR with that name exists). Bitmap: A, NS, SOA, MX, AAAA, RRSIG, NSEC, DNSKEY Validated: RRSIG-Owner martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.

Zone: www.martinsramek.cz
www.martinsramek.cz	0 DS RR in the parent zone found


	DS-Query in the parent zone has a valid NSEC RR as result with the domain name between the NSEC-Owner "*.martinsramek.cz" and the NextOwner "martinsramek.cz". So the parent zone confirmes the non-existence of a DS RR. Bitmap: A, AAAA, RRSIG, NSEC


	RRSIG Type 1 validates the A - Result: 10.0.0.4. RRSIG Owner has 3 labels, RRSIG Labels = 2, so it's a wildcard expansion, the Query Name doesn't exists. An additional NSEC/NSEC3 is required to confirm the Not-Existence of the query name. Validated: RRSIG-Owner www.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	RRSIG Type 28 validates the AAAA - Result: 2A02:2B88:0001:0004:0000:0000:0000:0017. RRSIG Owner has 3 labels, RRSIG Labels = 2, so it's a wildcard expansion, the Query Name doesn't exists. An additional NSEC/NSEC3 is required to confirm the Not-Existence of the query name. Validated: RRSIG-Owner www.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	A-Query sends a valid NSEC RR as result with the owner name .martinsramek.cz as the Wildcard-Expansion of the Closest Encloser of the query name "www.martinsramek.cz". So the Wildcard-Expansion of the Closest Encloser confirms that the query name is generated via wildcard expansion (NoError instead of NXDomain). A-Query sends a valid NSEC RR as result with the query name "www.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that A RR. Bitmap: A, AAAA, RRSIG, NSEC Validated: RRSIG-Owner *.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	CNAME-Query sends a valid NSEC RR as result with the owner name .martinsramek.cz as the Wildcard-Expansion of the Closest Encloser of the query name "www.martinsramek.cz". So the Wildcard-Expansion of the Closest Encloser confirms that the query name is generated via wildcard expansion (NoError instead of NXDomain). CNAME-Query sends a valid NSEC RR as result with the query name "www.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that CNAME RR. Bitmap: A, AAAA, RRSIG, NSEC Validated: RRSIG-Owner *.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	TXT-Query sends a valid NSEC RR as result with the owner name .martinsramek.cz as the Wildcard-Expansion of the Closest Encloser of the query name "www.martinsramek.cz". So the Wildcard-Expansion of the Closest Encloser confirms that the query name is generated via wildcard expansion (NoError instead of NXDomain). TXT-Query sends a valid NSEC RR as result with the query name "www.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that TXT RR. Bitmap: A, AAAA, RRSIG, NSEC Validated: RRSIG-Owner *.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	AAAA-Query sends a valid NSEC RR as result with the owner name .martinsramek.cz as the Wildcard-Expansion of the Closest Encloser of the query name "www.martinsramek.cz". So the Wildcard-Expansion of the Closest Encloser confirms that the query name is generated via wildcard expansion (NoError instead of NXDomain). AAAA-Query sends a valid NSEC RR as result with the query name "www.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that AAAA RR. Bitmap: A, AAAA, RRSIG, NSEC Validated: RRSIG-Owner *.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	TLSA-Query sends a valid NSEC RR as result with the owner name .martinsramek.cz as the Wildcard-Expansion of the Closest Encloser of the query name "_443._tcp.www.martinsramek.cz". So the Wildcard-Expansion of the Closest Encloser confirms that the query name is generated via wildcard expansion (NoError instead of NXDomain). TLSA-Query (_443._tcp.www.martinsramek.cz) sends a valid NSEC RR as result with the query name "_443._tcp.www.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that TLSA RR.TLSA-Query (_443._tcp.www.martinsramek.cz) sends a valid NSEC RR as result with the parent Wildcard "._tcp.www.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that Wildcard-expansion. Bitmap: A, AAAA, RRSIG, NSEC Validated: RRSIG-Owner *.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.


	CAA-Query sends a valid NSEC RR as result with the owner name .martinsramek.cz as the Wildcard-Expansion of the Closest Encloser of the query name "www.martinsramek.cz". So the Wildcard-Expansion of the Closest Encloser confirms that the query name is generated via wildcard expansion (NoError instead of NXDomain). CAA-Query sends a valid NSEC RR as result with the query name "www.martinsramek.cz" between the NSEC-owner ".martinsramek.cz" and the NextOwner "martinsramek.cz". So the zone confirmes the not-existence of that CAA RR. Bitmap: A, AAAA, RRSIG, NSEC Validated: RRSIG-Owner *.martinsramek.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 10.08.2025, 20:55:06 +, Signature-Inception: 09.06.2025, 17:47:17 +, KeyTag 42838, Signer-Name: martinsramek.cz


	Status: Good. NoData-Proof required and found.

3. Name Servers

Domain	Nameserver	NS-IP
www.martinsramek.cz	• ns.wedos.com / dns-ac110-a-7c74fffc9c-gmw6w		•
martinsramek.cz	• ns.wedos.com / dns-ac110-a-7c74fffc9c-gmw6w	45.138.106.0 Hluboká nad Vltavou/Jihočeský kraj/Czechia (CZ) - WEDOS Internet, a.s.	•
	•	2a0e:acc0:1::cafe:cafe:cafe Hluboká nad Vltavou/Jihočeský kraj/Czechia (CZ) - WEDOS Internet, a.s.	•
	• ns.wedos.cz / dns-ac110-c-555f975df7-txr5r	185.8.238.1 Prague/Czechia (CZ) - WEDOS Internet, a.s.	•
	•	45.138.106.1 Hluboká nad Vltavou/Jihočeský kraj/Czechia (CZ) - WEDOS Internet, a.s.	•
	•	2a0e:acc0:1::caff:caff:cafb Hluboká nad Vltavou/Jihočeský kraj/Czechia (CZ) - WEDOS Internet, a.s.	•
	•	2a0e:acc0:2::c:1:c1 Prague/Czechia (CZ) - WEDOS Internet, a.s.	•
	• ns.wedos.eu / dns-ac110-b-686b7ffcb9-bmtx4	185.8.238.0 Prague/Czechia (CZ) - WEDOS Internet, a.s.	•
	•	2a0e:acc0:2::b:1:b1 Prague/Czechia (CZ) - WEDOS Internet, a.s.	•
	• ns.wedos.net / dns1-fra1	75.2.92.86 Seattle/Washington/United States (US) - Amazon.com, Inc.	•
	•	99.83.142.9 Seattle/Washington/United States (US) - Amazon.com, Inc.	•
	•	2a0e:acc0:1::caff:caff:caff Hluboká nad Vltavou/Jihočeský kraj/Czechia (CZ) - WEDOS Internet, a.s.	•
cz	• a.ns.nic.cz / dns-jinx-02.nic.cz		•
	• b.ns.nic.cz / dns-sgix-01.nic.cz		•
	• c.ns.nic.cz / dns-linx-dns03.nic.cz		•
	• d.ns.nic.cz / dns-sgix-02.nic.cz		•

4. SOA-Entries

Domain:	cz
Zone-Name:	cz
Primary:	a.ns.nic.cz
Mail:	hostmaster.nic.cz
Serial:	1749496612
Refresh:	900
Retry:	300
Expire:	604800
TTL:	900
num Entries:	4

Domain:	martinsramek.cz
Zone-Name:	martinsramek.cz
Primary:	ns.wedos.com
Mail:	wedos.wedos.com
Serial:	2025060903
Refresh:	3600
Retry:	1800
Expire:	1814400
TTL:	3600
num Entries:	11

Domain:	www.martinsramek.cz
Zone-Name:	martinsramek.cz
Primary:	ns.wedos.com
Mail:	wedos.wedos.com
Serial:	2025060903
Refresh:	3600
Retry:	1800
Expire:	1814400
TTL:	3600
num Entries:	1

5. Screenshots

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

6. Url-Checks

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://martinsramek.cz/.well-known/acme-challenge/test 2a02:2b88:1:4::17	404	Html is minified: 103.15 %	0.053	M
Not Found
Date: Mon, 09 Jun 2025 19:38:53 GMT
Server: Apache
Content-Length: 229
Content-Type: text/html; charset=iso-8859-1

• http://www.martinsramek.cz/.well-known/acme-challenge/test 2a02:2b88:1:4::17	404	Html is minified: 103.15 %	0.027	M
Not Found
Date: Mon, 09 Jun 2025 19:38:53 GMT
Server: Apache
Content-Length: 229
Content-Type: text/html; charset=iso-8859-1

• https://martinsramek.cz/.well-known/acme-challenge/test 2a02:2b88:1:4::17	-14		10.024	T
Timeout - The operation has timed out.

• https://www.martinsramek.cz/.well-known/acme-challenge/test 2a02:2b88:1:4::17	-14		10.030	T
Timeout - The operation has timed out.

• http://martinsramek.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a02:2b88:1:4::17 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	404	Html is minified: 102.69 % Other inline scripts (∑/total): 0/0	0.047	A
Not Found
Visible Content:
Date: Mon, 09 Jun 2025 19:39:13 GMT
Server: Apache
Content-Length: 267
Content-Type: text/html; charset=iso-8859-1

• http://www.martinsramek.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a02:2b88:1:4::17 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	404	Html is minified: 102.69 % Other inline scripts (∑/total): 0/0	0.026	A
Not Found
Visible Content:
Date: Mon, 09 Jun 2025 19:39:13 GMT
Server: Apache
Content-Length: 267
Content-Type: text/html; charset=iso-8859-1

• https://[2a02:2b88:0001:0004:0000:0000:0000:0017]/.well-known/acme-challenge/test 2a02:2b88:1:4::17	-14		10.023	T
Timeout - The operation has timed out.

7. Comments

	1. General Results, most used to calculate the result
A	name "martinsramek.cz" is domain, public suffix is ".cz", top-level-domain is ".cz", top-level-domain-type is "country-code", Country is Czechia, tld-manager is "CZ.NIC, z.s.p.o", num .cz-domains preloaded: 2267 (complete: 271405)
	Warning: Only one ip address found: martinsramek.cz has only one ip address.
	Warning: Only one ip address found: www.martinsramek.cz has only one ip address.
A	Good: No asked Authoritative Name Server had a timeout
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)
C	Error - no version with Http-Status 200
H	Fatal error: No https - result with http-status 200, no encryption
M	http://martinsramek.cz/.well-known/acme-challenge/test 2a02:2b88:1:4::17	404		Misconfiguration - main pages should never send http status 400 - 499
M	http://www.martinsramek.cz/.well-known/acme-challenge/test 2a02:2b88:1:4::17	404		Misconfiguration - main pages should never send http status 400 - 499
Y	martinsramek.cz		10.0.0.4	Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 10.0.0.0 to 10.255.255.255: Class A - one private net with 16.777.216 adresses
Y	www.martinsramek.cz		10.0.0.4	Warning: Private ip address found. No connection possible. There are two types of ip addresses: Worldwide unique, global addresses and private addresses. If you want that other users connect your domain, your domain must have minimal one A- (ipv4) or AAAA- (ipv6) entry with a global ip address. Check https://en.wikipedia.org/wiki/Private_network to understand the details: 10.0.0.0 to 10.255.255.255: Class A - one private net with 16.777.216 adresses
	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 martinsramek.cz, 1 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 www.martinsramek.cz, 1 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.martinsramek.cz
	2. Header-Checks
U				No https result with http status 2 or 4 (standard-check) found, no header checked.
	3. DNS- and NameServer - Checks
A	Info:: 8 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
A	Info:: 8 Queries complete, 8 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
A	Good: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.ns.wedos.com (2a0e:acc0:1::cafe:cafe:cafe, 45.138.106.0), ns.wedos.cz (185.8.238.1, 2a0e:acc0:1::caff:caff:cafb, 2a0e:acc0:2::c:1:c1, 45.138.106.1), ns.wedos.eu (185.8.238.0, 2a0e:acc0:2::b:1:b1), ns.wedos.net (2a0e:acc0:1::caff:caff:caff, 75.2.92.86, 99.83.142.9)
A	Good (1 - 3.0):: An average of 2.0 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 4 different Name Servers found: ns.wedos.com, ns.wedos.cz, ns.wedos.eu, ns.wedos.net, 4 Name Servers included in Delegation: ns.wedos.com, ns.wedos.cz, ns.wedos.eu, ns.wedos.net, 4 Name Servers included in 1 Zone definitions: ns.wedos.com, ns.wedos.cz, ns.wedos.eu, ns.wedos.net, 1 Name Servers listed in SOA.Primary: ns.wedos.com.
A	Good: Only one SOA.Primary Name Server found.: ns.wedos.com.
A	Good: SOA.Primary Name Server included in the delegation set.: ns.wedos.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: ns.wedos.com, ns.wedos.cz, ns.wedos.eu, ns.wedos.net
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: 4 different Name Servers found
A	Good: Name servers with different Top Level Domains / Public Suffix List entries found: 4 Name Servers, 4 Top Level Domains: eu, cz, net, com
A	Good: Name Servers with different domain names found.: 4 different Domains found
A	Good: Name servers with different Country locations found: 4 Name Servers, 2 Countries: CZ, US
A	Info: Ipv4-Subnet-list: 6 Name Servers, 4 different subnets (first Byte): 185., 45., 75., 99., 4 different subnets (first two Bytes): 185.8., 45.138., 75.2., 99.83., 4 different subnets (first three Bytes): 185.8.238., 45.138.106., 75.2.92., 99.83.142.
A	Good: Name Server IPv4-addresses from different subnet found:
A	Info: IPv6-Subnet-list: 5 Name Servers with IPv6, 1 different subnets (first block): 2a0e:, 1 different subnets (first two blocks): 2a0e:acc0:, 2 different subnets (first three blocks): 2a0e:acc0:0001:, 2a0e:acc0:0002:, 2 different subnets (first four blocks): 2a0e:acc0:0001:0000:, 2a0e:acc0:0002:0000:
A	Good: Name Server IPv6 addresses from different subnets found.
A	Good: Nameserver supports TCP connections: 11 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 11 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 11 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 10 good Nameserver
	Nameserver doesn't pass all EDNS-Checks: ns.wedos.cz / 2a0e:acc0:2::c:1:c1: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: fatal timeout. COOKIE: ok. CLIENTSUBNET: ok.
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.
A	Info: No img element found, no alt attribute checked
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	Duration: 114700 milliseconds, 114.700 seconds

8. Connections

No connection informations found. Perhaps only http - connections.

9. Certificates

No certificate informations found. Perhaps only http - connections.

10. Last Certificates - Certificate Transparency Log Check

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

No CertSpotter - CT-Log entries found

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

No CRT - CT-Log entries found

11. Html-Content - Entries

No Html-Content entries found. Only checked if https + status 200/401/403/404

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

No https result http status 200 and Content-Type text/html or text/xml found, no Html-Parsing - Check

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns.wedos.com, ns.wedos.cz, ns.wedos.eu, ns.wedos.net

QNr.	Domain	Type	NS used
1	com	NS	g.root-servers.net (2001:500:12::d0d)
	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	ns.wedos.com: 2a0e:acc0:1::cafe:cafe:cafe, 45.138.106.0	NS	l.gtld-servers.net (2001:500:d937::30)
3	cz	NS	g.root-servers.net (2001:500:12::d0d)
	Answer: a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz
4	ns.wedos.cz: 185.8.238.1, 2a0e:acc0:1::caff:caff:cafb, 2a0e:acc0:2::c:1:c1, 45.138.106.1	NS	a.ns.nic.cz (2001:678:f::1)
5	eu	NS	a.root-servers.net (2001:503:ba3e::2:30)
	Answer: be.dns.eu, si.dns.eu, w.dns.eu, x.dns.eu, y.dns.eu
6	ns.wedos.eu: 185.8.238.0, 2a0e:acc0:2::b:1:b1	NS	si.dns.eu (2001:1470:8000:100::62)
7	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
8	ns.wedos.net: 2a0e:acc0:1::caff:caff:caff, 75.2.92.86, 99.83.142.9	NS	a.gtld-servers.net (2001:503:a83e::2:30)

14. CAA - Entries

Domainname	Value	∑ Queries
www.martinsramek.cz	no CAA entry found	1
martinsramek.cz	no CAA entry found	1
cz	no CAA entry found	1

15. TXT - Entries

Domainname	Status	∑ Queries
martinsramek.cz	ok	1
www.martinsramek.cz	ok	1
_acme-challenge.martinsramek.cz	missing entry or wrong length	1
_acme-challenge.www.martinsramek.cz	missing entry or wrong length	1
_acme-challenge.martinsramek.cz.martinsramek.cz	perhaps wrong	1
_acme-challenge.www.martinsramek.cz.martinsramek.cz	perhaps wrong	1
_acme-challenge.www.martinsramek.cz.www.martinsramek.cz	perhaps wrong	1

16. DomainService - Entries

Type		Domain	Pref	Value	num Answers	Status
MX		martinsramek.cz	10	e9c1bbef0f17619b.mx1.emailprofi.seznam.cz	2	ok
	A			77.75.77.56	1	ok
	AAAA			2a02:598:2::1056	1	ok
	CNAME				0	ok
MX		martinsramek.cz	20	e9c1bbef0f17619b.mx2.emailprofi.seznam.cz	2	ok
	A			77.75.77.146	1	ok
	AAAA			2a02:598:2::1146	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=4d1ca8a0-caa4-4af6-a9b4-edaa78bcb273

Last Result: https://check-your-website.server-daten.de/?q=martinsramek.cz%2F.well-known%2Facme-challenge%2Ftest - 2025-06-09 21:37:53

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

<a href="https://check-your-website.server-daten.de/?q=martinsramek.cz%2F.well-known%2Facme-challenge%2Ftest" target="_blank">Check this Site: martinsramek.cz%2F.well-known%2Facme-challenge%2Ftest</a>

Do you really want to support this project? Donate: Check-your-website, IBAN DE98 1001 0010 0575 2211 07, SWIFT/BIC PBNKDEFF, Euro

QR-Code of this page - https://check-your-website.server-daten.de/?d=martinsramek.cz/.well-known/acme-challenge/test