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Content problems - mixed content, missing files etc.

Checked:
31.03.2025 09:46:40

Older results

I - 31.03.2025 09:32:14

I - 28.03.2025 10:48:06

I - 28.03.2025 09:57:15

I - 28.03.2025 09:40:33

I - 27.03.2025 14:55:48

I - 27.03.2025 14:35:01

A+ - 02.09.2024 09:26:16

A+ - 27.08.2024 11:51:47

O - 27.08.2024 10:26:03

A+ - 09.05.2024 18:56:44

1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
vetuni.cz	A	195.113.198.43 Brno/South Moravian/Czechia (CZ) - CESNET-TCZ Hostname: fvl.vfu.cz	yes	1	0
	AAAA		yes
www.vetuni.cz	A	195.113.198.43 Brno/South Moravian/Czechia (CZ) - CESNET-TCZ Hostname: fvl.vfu.cz	yes	1	0
	AAAA		yes
*.vetuni.cz	A	Name Error	yes
	AAAA	Name Error	yes
	CNAME	Name Error	yes
mta-sts.vetuni.cz	A	195.113.198.43 No Hostname found	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 26470, Flags 256


	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: 12.04.2025, 00:00:00 +, Signature-Inception: 22.03.2025, 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: 13.04.2025, 05:00:00 +, Signature-Inception: 31.03.2025, 04:00:00 +, KeyTag 26470, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26470 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 63781, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner cz., Algorithm: 13, 1 Labels, original TTL: 3600 sec, Signature-expiration: 13.04.2025, 00:21:34 +, Signature-Inception: 29.03.2025, 22:51:34 +, 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: vetuni.cz
vetuni.cz	2 DS RR in the parent zone found


	DS with Algorithm 13, KeyTag 2689, DigestType 2 and Digest 3z8fjLyymZ+x7wGA7MmtOGoTNWK4Lj/1FwxHUWqTgLk=


	DS with Algorithm 13, KeyTag 63145, DigestType 2 and Digest ITcAStw5i/bO7p8uhul0R7RfsWkZ0DoJqEhCmj0ryx0=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner vetuni.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 12.04.2025, 16:46:51 +, Signature-Inception: 29.03.2025, 15:16:51 +, KeyTag 63781, Signer-Name: cz


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 63781 used to validate the DS RRSet in the parent zone


	4 DNSKEY RR found


	Public Key with Algorithm 13, KeyTag 2689, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 32111, Flags 256


	Public Key with Algorithm 13, KeyTag 46557, Flags 256


	Public Key with Algorithm 13, KeyTag 63145, Flags 257 (SEP = Secure Entry Point)


	2 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner vetuni.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 02.04.2025, 22:22:52 +, Signature-Inception: 26.03.2025, 21:22:52 +, KeyTag 2689, Signer-Name: vetuni.cz


	RRSIG-Owner vetuni.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 02.04.2025, 22:22:52 +, Signature-Inception: 26.03.2025, 21:22:52 +, KeyTag 46557, Signer-Name: vetuni.cz


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 2689 used to validate the DNSKEY RRSet


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 46557 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 2689, DigestType 2 and Digest "3z8fjLyymZ+x7wGA7MmtOGoTNWK4Lj/1FwxHUWqTgLk=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone


	RRSIG Type 1 validates the A - Result: 195.113.198.43 Validated: RRSIG-Owner vetuni.cz., Algorithm: 13, 2 Labels, original TTL: 600 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	RRSIG Type 16 validates the TXT - Result: have-i-been-pwned-verification=08f67ed21f25e6b1bd8036f49dfdd0ac google-site-verification=SS616g7O9rjS6xmaPTsyYJBe7gPYoIfp_TCcpAiU6Bk 2qa5xElNjZgFIRm2f8tI1K8VQNTJvV3rAcOWPWkzluL74oYXRENcgeVRaFnTleIG2EML1gXgUoO9fS6gJ2ZEjw== 5SfsvWEMgxjjcIGtmWK4/5FonYR/2oFH+RCeQTRXDE6AhGW4583adrPJSyETrmq34idu5EH+k+5p0tSmIID6bA== v=spf1 a:mail.vfu.cz include:spf.protection.outlook.com ip4:195.113.198.0/24 include:web.spf.e-fractal.cz ~all Validated: RRSIG-Owner vetuni.cz., Algorithm: 13, 2 Labels, original TTL: 7200 sec, Signature-expiration: 06.04.2025, 08:38:10 +, Signature-Inception: 27.03.2025, 07:38:10 +, KeyTag 46557, Signer-Name: vetuni.cz


	CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "9461pncpj7p8g34q28cpoarbcrhs9761" equal the hashed NSEC3-owner "9461pncpj7p8g34q28cpoarbcrhs9761" and the hashed NextOwner "95b3ajbpo33bmn9mn2e6a7nblt74jddj". 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, TXT, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner 9461pncpj7p8g34q28cpoarbcrhs9761.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 06.04.2025, 08:38:10 +, Signature-Inception: 27.03.2025, 07:38:10 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NoData-Proof required and found.


	AAAA-Query sends a valid NSEC3 RR as result with the hashed query name "9461pncpj7p8g34q28cpoarbcrhs9761" equal the hashed NSEC3-owner "9461pncpj7p8g34q28cpoarbcrhs9761" and the hashed NextOwner "95b3ajbpo33bmn9mn2e6a7nblt74jddj". So the zone confirmes the not-existence of that AAAA RR, but the existence of that query name (minimal one RR with that name exists). Bitmap: A, NS, SOA, MX, TXT, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner 9461pncpj7p8g34q28cpoarbcrhs9761.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 06.04.2025, 08:38:10 +, Signature-Inception: 27.03.2025, 07:38:10 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NoData-Proof required and found.


	TLSA-Query (_443._tcp.vetuni.cz) sends a valid NSEC3 RR as result with the hashed owner name "qhorbtknb6gpj6bc1hdnnkg33gdiu0m7" (unhashed: _tcp.vetuni.cz). So that's the Closest Encloser of the query name. Bitmap: No Bitmap? Validated: RRSIG-Owner qhorbtknb6gpj6bc1hdnnkg33gdiu0m7.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NXDomain-Proof required and found.


	TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Wildcard expansion of the ClosestEncloser "hskadetosd34k2ugfvhbsg8m5gjhmas4" (unhashed: *._tcp.vetuni.cz) with the owner "hktugb1idk8tellu5au6nnikpducejga" and the NextOwner "i1tvnaegfgco25ee12507a72ljtojb2k". So that NSEC3 confirms the not-existence of the Wildcard expansion. Bitmap: A, RRSIG Validated: RRSIG-Owner hktugb1idk8tellu5au6nnikpducejga.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NXDomain-Proof required and found.


	TLSA-Query (_443._tcp.vetuni.cz) sends a valid NSEC3 RR as result with the hashed query name "j31teqqk529no9p7mronjakr4l5u5roo" between the hashed NSEC3-owner "ipmrninf6s2qlgq7s66lb2v6cgkevj2c" and the hashed NextOwner "j6r25pnrg3vl8eo8idj4m0lve6t8sqa0". So the zone confirmes the not-existence of that TLSA RR. Bitmap: TXT, RRSIG Validated: RRSIG-Owner ipmrninf6s2qlgq7s66lb2v6cgkevj2c.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NXDomain-Proof required and found.


	CAA-Query sends a valid NSEC3 RR as result with the hashed query name "9461pncpj7p8g34q28cpoarbcrhs9761" equal the hashed NSEC3-owner "9461pncpj7p8g34q28cpoarbcrhs9761" and the hashed NextOwner "95b3ajbpo33bmn9mn2e6a7nblt74jddj". 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, TXT, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner 9461pncpj7p8g34q28cpoarbcrhs9761.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 06.04.2025, 08:38:10 +, Signature-Inception: 27.03.2025, 07:38:10 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NoData-Proof required and found.

Zone: www.vetuni.cz
www.vetuni.cz	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 "k8jqbtcf1bmq1bbculo61tb05h39ioto" between the hashed NSEC3-owner "k8jqbtcf1bmq1bbculo61tb05h39ioto" and the hashed NextOwner "kbj2k6qor0e72homrm6estqgvkopclt0". So the parent zone confirmes the not-existence of a DS RR. Bitmap: A, RRSIG Validated: RRSIG-Owner k8jqbtcf1bmq1bbculo61tb05h39ioto.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	RRSIG Type 1 validates the A - Result: 195.113.198.43 Validated: RRSIG-Owner www.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "k8jqbtcf1bmq1bbculo61tb05h39ioto" equal the hashed NSEC3-owner "k8jqbtcf1bmq1bbculo61tb05h39ioto" and the hashed NextOwner "kbj2k6qor0e72homrm6estqgvkopclt0". 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, RRSIG Validated: RRSIG-Owner k8jqbtcf1bmq1bbculo61tb05h39ioto.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NoData-Proof required and found.


	TXT-Query sends a valid NSEC3 RR as result with the hashed query name "k8jqbtcf1bmq1bbculo61tb05h39ioto" equal the hashed NSEC3-owner "k8jqbtcf1bmq1bbculo61tb05h39ioto" and the hashed NextOwner "kbj2k6qor0e72homrm6estqgvkopclt0". 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, RRSIG Validated: RRSIG-Owner k8jqbtcf1bmq1bbculo61tb05h39ioto.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NoData-Proof required and found.


	AAAA-Query sends a valid NSEC3 RR as result with the hashed query name "k8jqbtcf1bmq1bbculo61tb05h39ioto" equal the hashed NSEC3-owner "k8jqbtcf1bmq1bbculo61tb05h39ioto" and the hashed NextOwner "kbj2k6qor0e72homrm6estqgvkopclt0". So the zone confirmes the not-existence of that AAAA RR, but the existence of that query name (minimal one RR with that name exists). Bitmap: A, RRSIG Validated: RRSIG-Owner k8jqbtcf1bmq1bbculo61tb05h39ioto.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NoData-Proof required and found.


	TLSA-Query (_443._tcp.www.vetuni.cz) sends a valid NSEC3 RR as result with the hashed owner name "k8jqbtcf1bmq1bbculo61tb05h39ioto" (unhashed: www.vetuni.cz). So that's the Closest Encloser of the query name. Bitmap: A, RRSIG Validated: RRSIG-Owner k8jqbtcf1bmq1bbculo61tb05h39ioto.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NXDomain-Proof required and found.


	TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Next Closer Name "s0hcr6gh6dardnmnr18phq5vkfn43720" (unhashed: _tcp.www.vetuni.cz) with the owner "rtvfk2o5hj2e23gum79fr5v90no1fm15" and the NextOwner "sbcukkkvupg2hf1e3u0tgj3rkmclf4h0". So that NSEC3 confirms the not-existence of the Next Closer Name. Bitmap: A, RRSIG Validated: RRSIG-Owner rtvfk2o5hj2e23gum79fr5v90no1fm15.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NXDomain-Proof required and found.


	TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Wildcard expansion of the ClosestEncloser "dg1pfbc3ldirv22ih16tqv10mrn07qs2" (unhashed: *.www.vetuni.cz) with the owner "deghinhehdunm1fi5e0a8tq3okjbakd2" and the NextOwner "djr80gqvphf164ohnjvfgtt6jb7i7l8e". So that NSEC3 confirms the not-existence of the Wildcard expansion. Bitmap: A, RRSIG Validated: RRSIG-Owner deghinhehdunm1fi5e0a8tq3okjbakd2.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NXDomain-Proof required and found.


	CAA-Query sends a valid NSEC3 RR as result with the hashed query name "k8jqbtcf1bmq1bbculo61tb05h39ioto" equal the hashed NSEC3-owner "k8jqbtcf1bmq1bbculo61tb05h39ioto" and the hashed NextOwner "kbj2k6qor0e72homrm6estqgvkopclt0". 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, RRSIG Validated: RRSIG-Owner k8jqbtcf1bmq1bbculo61tb05h39ioto.vetuni.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 46557, Signer-Name: vetuni.cz


	Status: Good. NoData-Proof required and found.

3. Name Servers

Domain	Nameserver	NS-IP
www.vetuni.cz	• ns1.vetuni.cz		•
vetuni.cz	• ns.muni.cz	147.251.4.33 Brno/South Moravian/Czechia (CZ) - CESNET z.s.p.o.	•
	•	2001:718:801:404::33 Brno/South Moravian/Czechia (CZ) - CESNET6-TCZ	•
	• ns1.vetuni.cz	195.113.198.35 Brno/South Moravian/Czechia (CZ) - CESNET-TCZ	•
cz	• a.ns.nic.cz / dns-sixusa-dns01.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:	1743405410
Refresh:	900
Retry:	300
Expire:	604800
TTL:	900
num Entries:	4

Domain:	vetuni.cz
Zone-Name:	vetuni.cz
Primary:	ns1.vetuni.cz
Mail:	jdvor.vfu.cz
Serial:	2025021025
Refresh:	86400
Retry:	7200
Expire:	1209600
TTL:	7200
num Entries:	3

Domain:	www.vetuni.cz
Zone-Name:	vetuni.cz
Primary:	ns1.vetuni.cz
Mail:	jdvor.vfu.cz
Serial:	2025021025
Refresh:	86400
Retry:	7200
Expire:	1209600
TTL:	7200
num Entries:	1

5. Screenshots

Startaddress: https://www.vetuni.cz/, address used: https://www.vetuni.cz/, Screenshot created 2025-03-31 09:49:58 +00:0

Mobil (412px x 732px)

1081 milliseconds

Screenshot mobile - https://www.vetuni.cz/

Mobil + Landscape (732px x 412px)

1083 milliseconds

Screenshot mobile landscape - https://www.vetuni.cz/

Screen (1280px x 1680px)

1269 milliseconds

Screenshot Desktop - https://www.vetuni.cz/

Mobile- and other Chrome-Checks

	width	height
visual Viewport	396	732
content Size	396	3587

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

6. Url-Checks

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://vetuni.cz/ 195.113.198.43	301	https://vetuni.cz/ Html is minified: 103.20 %	0.054	A
Date: Mon, 31 Mar 2025 07:47:37 GMT
Server: VETUNI
Location: https://vetuni.cz/
Content-Length: 226
Content-Type: text/html; charset=iso-8859-1

• http://www.vetuni.cz/ 195.113.198.43	301	https://www.vetuni.cz/ Html is minified: 103.14 %	0.027	A
Date: Mon, 31 Mar 2025 07:47:37 GMT
Server: VETUNI
Location: https://www.vetuni.cz/
Content-Length: 230
Content-Type: text/html; charset=iso-8859-1

• https://vetuni.cz/ 195.113.198.43	301	https://www.vetuni.cz/ Html is minified: 103.14 %	3.276	A
Date: Mon, 31 Mar 2025 07:47:37 GMT
Server: VETUNI
Content-Security-Policy: base-uri 'self'; connect-src 'self' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org .google-analytics.com; default-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; frame-src 'self' https://www.google.com; img-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org; object-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' data: .googletagmanager.com .vfu.cz .vetuni.cz; style-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz;
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Permissions-Policy: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), fullscreen=(), sync-xhr=(), autoplay=(), encrypted-media=()
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin
Location: https://www.vetuni.cz/
Content-Length: 230
Content-Type: text/html; charset=iso-8859-1

• https://www.vetuni.cz/ 195.113.198.43 gzip used - 5050 / 26457 - 80.91 % Inline-JavaScript (∑/total): 1/139 Inline-CSS (∑/total): 2/783	200	Html is minified: 104.26 % Other inline scripts (∑/total): 1/778	3.343	I
Date: Mon, 31 Mar 2025 07:47:42 GMT
Server: VETUNI
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Content-Security-Policy: base-uri 'self'; connect-src 'self' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org .google-analytics.com; default-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; frame-src 'self' https://www.google.com; img-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org; object-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' data: .googletagmanager.com .vfu.cz .vetuni.cz; style-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz;
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Permissions-Policy: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), fullscreen=(), sync-xhr=(), autoplay=(), encrypted-media=()
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin
Upgrade: h2
Connection: Upgrade
Vary: Accept-Encoding
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, OPTIONS
Access-Control-Allow-Headers: Content-Type
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Encoding: gzip
Content-Length: 5050
Content-Type: text/html; charset=UTF-8

• https://mta-sts.vetuni.cz/.well-known/mta-sts.txt 195.113.198.43 gzip used - 97 / 109 - 11.01 %	200			A
0 None CN=mta-sts.vetuni.cz
Date: Mon, 31 Mar 2025 07:48:04 GMT
Server: VETUNI
Content-Security-Policy: base-uri 'self'; default-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; frame-src 'self'; img-src 'self' https:; object-src 'self' data: https:; script-src 'self' 'nonce-Z-pItOvx55l6pgJZpuLbyQAAAMA' data: https:; style-src 'self' 'nonce-Z-pItOvx55l6pgJZpuLbyQAAAMA' data: https:;
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Permissions-Policy: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), fullscreen=(), sync-xhr=(), autoplay=(), encrypted-media=()
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin
Upgrade: h2
Connection: Upgrade
ETag: "6d-610dd9fd1494d-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Last-Modified: Thu, 08 Feb 2024 12:05:15 GMT
Content-Encoding: gzip
Content-Length: 97
Content-Type: text/plain; charset=utf-8

• http://vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 195.113.198.43 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	301	https://vetuni.cz/error404.php Html is minified: 103.03 % Other inline scripts (∑/total): 0/0	0.057	A
Visible Content:
Date: Mon, 31 Mar 2025 07:47:47 GMT
Server: VETUNI
Location: https://vetuni.cz/error404.php
Content-Length: 238
Content-Type: text/html; charset=iso-8859-1

• http://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 195.113.198.43 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	301	https://www.vetuni.cz/error404.php Html is minified: 102.98 % Other inline scripts (∑/total): 0/0	0.033	A
Visible Content:
Date: Mon, 31 Mar 2025 07:47:47 GMT
Server: VETUNI
Location: https://www.vetuni.cz/error404.php
Content-Length: 242
Content-Type: text/html; charset=iso-8859-1

• https://vetuni.cz/error404.php Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	301	https://www.vetuni.cz/error404.php Html is minified: 102.98 % Other inline scripts (∑/total): 0/0	3.183	A
Visible Content:
Date: Mon, 31 Mar 2025 07:47:51 GMT
Server: VETUNI
Content-Security-Policy: base-uri 'self'; connect-src 'self' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org .google-analytics.com; default-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; frame-src 'self' https://www.google.com; img-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org; object-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' data: .googletagmanager.com .vfu.cz .vetuni.cz; style-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz;
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Permissions-Policy: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), fullscreen=(), sync-xhr=(), autoplay=(), encrypted-media=()
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin
Location: https://www.vetuni.cz/error404.php
Content-Length: 242
Content-Type: text/html; charset=iso-8859-1

• https://www.vetuni.cz/error404.php Inline-JavaScript (∑/total): 1/139 Inline-CSS (∑/total): 2/783	404	Html is minified: 108.36 % Other inline scripts (∑/total): 1/778	3.393	A
Not Found
Visible Content:
Date: Mon, 31 Mar 2025 07:47:56 GMT
Server: VETUNI
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Content-Security-Policy: base-uri 'self'; connect-src 'self' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org .google-analytics.com; default-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; frame-src 'self' https://www.google.com; img-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org; object-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' data: .googletagmanager.com .vfu.cz .vetuni.cz; style-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz;
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Permissions-Policy: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), fullscreen=(), sync-xhr=(), autoplay=(), encrypted-media=()
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin
Upgrade: h2
Connection: Upgrade
Access-Control-Allow-Origin: *
Access-Control-Allow-Methods: GET, OPTIONS
Access-Control-Allow-Headers: Content-Type
Transfer-Encoding: chunked
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 34394

• https://195.113.198.43/ 195.113.198.43	301	https://www.vetuni.cz/ Html is minified: 103.14 %	3.266	N
Certificate error: RemoteCertificateNameMismatch
Date: Mon, 31 Mar 2025 07:47:47 GMT
Server: VETUNI
Content-Security-Policy: base-uri 'self'; connect-src 'self' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org .google-analytics.com; default-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; frame-src 'self' https://www.google.com; img-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org; object-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' data: .googletagmanager.com .vfu.cz .vetuni.cz; style-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz;
Strict-Transport-Security: max-age=63072000; includeSubDomains; preload
Permissions-Policy: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), fullscreen=(), sync-xhr=(), autoplay=(), encrypted-media=()
X-Content-Type-Options: nosniff
Referrer-Policy: strict-origin-when-cross-origin
Location: https://www.vetuni.cz/
Content-Length: 230
Content-Type: text/html; charset=iso-8859-1

7. Comments

	1. General Results, most used to calculate the result
A	name "vetuni.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: 2224 (complete: 263653)
A	Good: All ip addresses are public addresses
	Warning: Only one ip address found: vetuni.cz has only one ip address.
	Warning: Only one ip address found: www.vetuni.cz 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: vetuni.cz 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.vetuni.cz 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: www is preferred
A	Good: No cookie sent via http.
A	Good: every https has a Strict Transport Security Header
A	Good: HSTS max-age is long enough, 63072000 seconds = 730 days
A	Good: HSTS has includeSubdomains - directive
A	Good: HSTS has preload directive
A	Excellent: Domain is in the Google-Preload-List
A	Excellent: Domain is in the Mozilla/Firefox-Preload-List
A	HSTS-Preload-Status: Preloaded. 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://vetuni.cz/ 195.113.198.43	301	https://vetuni.cz/	Correct redirect http - https with the same domain name
A	http://www.vetuni.cz/ 195.113.198.43	301	https://www.vetuni.cz/	Correct redirect http - https with the same domain name
I	https://www.vetuni.cz/ 195.113.198.43	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://www.vetuni.cz/error404.php	404		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
N	https://195.113.198.43/ 195.113.198.43	301	https://www.vetuni.cz/	Error - Certificate isn't trusted, RemoteCertificateNameMismatch
	Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain vetuni.cz, 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.vetuni.cz, 1 ip addresses, 1 different http results.
A	Good: _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Domainname: _mta-sts.vetuni.cz
A	Good: _mta-sts TXT record is valid.
A	Good: Subdomain mta-sts found: Subdomain-name: mta-sts.vetuni.cz, ip : 195.113.198.43
A	Good: Certificate of subdomain is valid. mta-sts.vetuni.cz, ip : 195.113.198.43
A	Good: /.well-known/mta-sts.txt with http status 200 found. Complete path: https://mta-sts.vetuni.cz/.well-known/mta-sts.txt - ip : 195.113.198.43
A	Good: mta-sts.txt has the required names "version", "mode", "max_age". mta-sts.vetuni.cz, ip : 195.113.198.43
A	Good: Minimal one mx definition found. mta-sts.vetuni.cz, ip : 195.113.198.43
A	Excellent: Complete and valid MTA-STS found!
	2. Header-Checks
A	www.vetuni.cz 195.113.198.43	Content-Security-Policy		Ok: Header without syntax errors found: base-uri 'self'; connect-src 'self' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org .google-analytics.com; default-src 'self'; font-src 'self' data:; form-action 'self'; frame-ancestors 'self'; frame-src 'self' https://www.google.com; img-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz .vetuni.eu .openalex.org; object-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval' data: .googletagmanager.com .vfu.cz .vetuni.cz; style-src 'self' 'unsafe-inline' data: .vfu.cz .vetuni.cz;
A				Good: default-src directive only with 'none' or 'self', additional sources are blocked.
A				Good: default-src without 'unsafe-inline' or 'unsave-eval'.
A				Good: form-action directive found. That reduces the risk sending data to unwanted domains. form-action is a navigation-directive, so default-src isn't used.
A				Good: frame-ancestors directive found. That limits pages who are allowed to use this page in a frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
A				Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required.
A				Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements.
F				Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and without a nonce found. That's dangerous, don't use it. If you really need one of these unsafe directives, add a nonce.
F				Critical: script-src with * or a scheme found. Never allow wildcard - sources.
F				Dangerous: script-src with data: schema found. The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens.
A				Good: frame-src without data: defined or frame-src missing and the default-src used as fallback not allows the data: schema. That blocks hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens.
A		X-Content-Type-Options		Ok: Header without syntax errors found: nosniff
A		Referrer-Policy		Ok: Header without syntax errors found: strict-origin-when-cross-origin
A		Permissions-Policy		Ok: Header without syntax errors found: accelerometer=(), camera=(), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), payment=(), usb=(), fullscreen=(), sync-xhr=(), autoplay=(), encrypted-media=()
B	www.vetuni.cz 195.113.198.43	Cross-Origin-Embedder-Policy		Info: Missing Header
B	www.vetuni.cz 195.113.198.43	Cross-Origin-Opener-Policy		Info: Missing Header
B	www.vetuni.cz 195.113.198.43	Cross-Origin-Resource-Policy		Info: Missing Header
	3. DNS- and NameServer - Checks
A	Info:: 12 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
A	Info:: 12 Queries complete, 10 with IPv6, 2 with IPv4.
	Warning: Only some DNS Queries done via ipv6. IPv6 is the future, so the name servers of your name servers should have ipv6 addresses.
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.muni.cz (147.251.4.33, 2001:718:801:404::33), ns1.vetuni.cz (195.113.198.35), ns.muni.cz (147.251.4.33, 2001:718:801:404::33)
	Ok (4 - 8):: An average of 6.0 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 2 different Name Servers found: ns.muni.cz, ns1.vetuni.cz, 2 Name Servers included in Delegation: ns.muni.cz, ns1.vetuni.cz, 2 Name Servers included in 1 Zone definitions: ns.muni.cz, ns1.vetuni.cz, 1 Name Servers listed in SOA.Primary: ns1.vetuni.cz.
A	Good: Only one SOA.Primary Name Server found.: ns1.vetuni.cz.
A	Good: SOA.Primary Name Server included in the delegation set.: ns1.vetuni.cz.
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.muni.cz, ns1.vetuni.cz
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
A	Good: Some Name Servers have IPv6 addresses: 1 Name Servers with IPv6 found (1 Name Servers without IPv6)
	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: cz
A	Good: Name Servers with different domain names found.: 2 different Domains found
	Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: CZ
A	Info: Ipv4-Subnet-list: 2 Name Servers, 2 different subnets (first Byte): 147., 195., 2 different subnets (first two Bytes): 147.251., 195.113., 2 different subnets (first three Bytes): 147.251.4., 195.113.198.
A	Excellent: Every Name Server IPv4-address starts with an unique Byte.
A	Info: IPv6-Subnet-list: 1 Name Servers with IPv6, 1 different subnets (first block): 2001:, 1 different subnets (first two blocks): 2001:0718:, 1 different subnets (first three blocks): 2001:0718:0801:, 1 different subnets (first four blocks): 2001:0718:0801:0404:
	Fatal: All Name Server IPv6 addresses from the same subnet.
A	Info: Nameserver mit different domain names found. May be a problem with DNS-Updates
A	Good: Nameserver supports TCP connections: 3 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 3 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 3 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: ns.muni.cz / 147.251.4.33: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok. COOKIE: fatal timeout. 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	Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
	https://www.vetuni.cz/ 195.113.198.43	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.
A	Good: Every https connection via port 443 supports the http/2 protocol via ALPN.
A	Good: Some script Elements (type text/javascript) with a src-Attribute have a defer / async - Attribute. So loading and executing these JavaScripts doesn't block parsing and rendering the Html-Output.
	https://www.vetuni.cz/ 195.113.198.43	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.: 1 script elements without defer/async.
	https://www.vetuni.cz/error404.php	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.: 1 script elements without defer/async.
A	Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 22 external CSS / JavaScript files found
	Warning: Svg-Images greater 1024 Bytes without internal compression are found. Svg is an Xml-Application, so Compression is required to reduce the size of the file. 2 images (type image/svg+xml, image/x-icon, image/vnd.microsoft.icon) found without compression.
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. 8 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. 0 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 2 with Cache-Control max-age too short (minimum 7 days), 22 with Cache-Control long enough, 24 complete.
A	Good: All images are sent with a long Cache-Control header (minimum 7 days). So the browser can reuse these files, no download is required. 10 image files with long Cache-Control max-age found
A	Good: All checked attribute values are enclosed in quotation marks (" or ').
A	Good: All img-elements have a valid alt-attribute.: 10 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://www.vetuni.cz/error404.php	404	3.393 seconds	Warning: 404 needs more then one second
A	Duration: 204850 milliseconds, 204.850 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

vetuni.cz

195.113.198.43

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

vetuni.cz

195.113.198.43

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

http/2 via ALPN supported
No SNI required - domain included in main certificate

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

http/2 via ALPN supported
No SNI required - domain included in main certificate

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

Chain (complete)	1	CN=vetuni.cz
	2	CN=R11, O=Let's Encrypt, C=US

www.vetuni.cz

195.113.198.43

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

www.vetuni.cz

195.113.198.43

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

http/2 via ALPN supported
No SNI required - domain included in main certificate

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

http/2 via ALPN supported
No SNI required - domain included in main certificate

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

Chain (complete)	1	CN=vetuni.cz
	2	CN=R11, O=Let's Encrypt, C=US

vetuni.cz

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

vetuni.cz

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

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=vetuni.cz
	2	CN=R11, O=Let's Encrypt, C=US

www.vetuni.cz

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

www.vetuni.cz

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

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=vetuni.cz
	2	CN=R11, O=Let's Encrypt, C=US

mta-sts.vetuni.cz

195.113.198.43

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

mta-sts.vetuni.cz

195.113.198.43

443

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

http/2 via ALPN supported
SNI required

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

http/2 via ALPN supported
SNI required

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

Chain (complete)	1	CN=mta-sts.vetuni.cz
	2	CN=R10, O=Let's Encrypt, C=US

195.113.198.43

443

name does not match

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

195.113.198.43

443

name does not match

Tls12

ECDH Ephermal

255

Aes256

256

Sha384

supported

http/2 via ALPN supported
Cert sent without SNI

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

http/2 via ALPN supported
Cert sent without SNI

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

Chain (complete)	1	CN=vetuni.cz
	2	CN=R11, O=Let's Encrypt, C=US

9. Certificates

CN=vetuni.cz

30.03.2025

28.06.2025
14 days expired

vetuni.cz, www.vetuni.cz - 2 entries

CN=vetuni.cz

30.03.2025

28.06.2025
14 days expired

vetuni.cz, www.vetuni.cz - 2 entries

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	05D112BD73530850A9C9F8CCA5A22FE7BE00
Thumbprint:	B17AC64C37EE0F0B3836D1C61DC2A96CDDD06C2E
SHA256 / Certificate:	NokPQ8KLC75BXwgPIkm+tqLK050kWtVed4YTpskbxek=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	ff5da8f118c267b157cf76f7dc63b90ec38e15f397fcbff3e7c9628bb830bcc7
SHA256 hex / Subject Public Key Information (SPKI):	ff5da8f118c267b157cf76f7dc63b90ec38e15f397fcbff3e7c9628bb830bcc7 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:	http://r11.o.lencr.org
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

CN=R11, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 609 days

CN=R11, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 609 days

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	008A7D3E13D62F30EF2386BD29076B34F8
Thumbprint:	696DB3AF0DFFC17E65C6A20D925C5A7BD24DEC7E
SHA256 / Certificate:	WR6c5shj06B56fq+FHjHM5omshJp3eeVIRNhAkrjGkQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ddac18698f7f1f7e1c69b9bce420d974ac6f94ca8b2c761701623f99c767dc7
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 3614 days

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

04.06.2015

04.06.2035
expires in 3614 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:

CN=mta-sts.vetuni.cz

03.02.2025

04.05.2025
69 days expired

mta-sts.vetuni.cz - 1 entry

CN=mta-sts.vetuni.cz

03.02.2025

04.05.2025
69 days expired

mta-sts.vetuni.cz - 1 entry

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	03549F4DB9CE8731B87569CD4EFDDBB13117
Thumbprint:	82EB53D4A4F498E8BBC9F44C5C31B248B6D0486A
SHA256 / Certificate:	tBFZ/B3ZFpOIV4PBczZ6LVBrCFLXmcC3CDkLx2uE4Tk=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	098e59db4e51d9178f35a0895f1423c86e188001b2024b8851f322065e079fcf
SHA256 hex / Subject Public Key Information (SPKI):	098e59db4e51d9178f35a0895f1423c86e188001b2024b8851f322065e079fcf (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:	http://r10.o.lencr.org
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

CN=R10, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 609 days

CN=R10, O=Let's Encrypt, C=US

13.03.2024

13.03.2027
expires in 609 days

Keyalgorithm	RSA encryption (2048 bit)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	4BA85293F79A2FA273064BA8048D75D0
Thumbprint:	00ABEFD055F9A9C784FFDEABD1DCDD8FED741436
SHA256 / Certificate:	nXw/GqatKy7A1c8eJG+NmubLyf0HVa03u5dLHy+2A/M=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	Error find_SubjectPublicKeyInfo_in_Certificate - no result found
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 3614 days

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

04.06.2015

04.06.2035
expires in 3614 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
CN=R3, O=Let's Encrypt, C=US				0	0	5
CN=R11, O=Let's Encrypt, C=US				0	0	2

CertSpotter-Id	Issuer	not before	not after	Domain names	LE-Duplicate	next LE
9351774289 leaf cert	CN=R11, O=Let's Encrypt, C=US	2025-01-29 07:28:29	2025-04-29 07:28:28	vetuni.cz, www.vetuni.cz - 2 entries
7793106258 leaf cert	CN=R11, O=Let's Encrypt, C=US	2024-07-25 10:03:27	2024-10-23 10:03:26	vetuni.cz, www.vetuni.cz - 2 entries
7007286848 leaf cert	CN=R3, O=Let's Encrypt, C=US	2024-03-26 11:51:52	2024-06-24 11:51:51	vetuni.cz, www.vetuni.cz - 2 entries
6636972314 leaf cert	CN=R3, O=Let's Encrypt, C=US	2024-01-26 16:09:12	2024-04-25 16:09:11	vetuni.cz, www.vetuni.cz - 2 entries
6635034701 leaf cert	CN=R3, O=Let's Encrypt, C=US	2024-01-26 09:01:24	2024-04-25 09:01:23	vetuni.cz, www.vetuni.cz - 2 entries
6263565463 leaf cert	CN=R3, O=Let's Encrypt, C=US	2023-11-27 09:19:05	2024-02-25 09:19:04	vetuni.cz, www.vetuni.cz - 2 entries
6263439389 leaf cert	CN=R3, O=Let's Encrypt, C=US	2023-11-27 08:51:02	2024-02-25 08:51:01	vetuni.cz, www.vetuni.cz - 2 entries

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

Issuer				last 7 days	active	num Certs
CN=R3, O=Let's Encrypt, C=US				0 /0 new	0	8
CN=R11, O=Let's Encrypt, C=US				0	0	4

CRT-Id	Issuer	not before	not after	Domain names	LE-Duplicate	next LE
17519728821 leaf cert	CN=R11, O=Let's Encrypt, C=US	2025-03-30 17:18:26	2025-06-28 17:18:25	vetuni.cz, www.vetuni.cz 2 entries
16506748996 precert	CN=R11, O=Let's Encrypt, C=US	2025-01-29 06:28:29	2025-04-29 05:28:28	vetuni.cz, www.vetuni.cz 2 entries
15596233749 leaf cert	CN=R11, O=Let's Encrypt, C=US	2024-11-22 19:52:31	2025-02-20 19:52:30	vetuni.cz, www.vetuni.cz 2 entries
13888105374 leaf cert	CN=R11, O=Let's Encrypt, C=US	2024-07-25 08:03:27	2024-10-23 08:03:26	vetuni.cz, www.vetuni.cz 2 entries
13181966848 precert	CN=R3, O=Let's Encrypt, C=US	2024-05-25 23:49:17	2024-08-23 23:49:16	vetuni.cz, www.vetuni.cz 2 entries
12550342941 leaf cert	CN=R3, O=Let's Encrypt, C=US	2024-03-26 10:51:52	2024-06-24 09:51:51	vetuni.cz, www.vetuni.cz 2 entries
11876942644 leaf cert	CN=R3, O=Let's Encrypt, C=US	2024-01-26 15:09:12	2024-04-25 14:09:11	vetuni.cz, www.vetuni.cz 2 entries
11873575023 leaf cert	CN=R3, O=Let's Encrypt, C=US	2024-01-26 08:01:24	2024-04-25 07:01:23	vetuni.cz, www.vetuni.cz 2 entries
11236350980 precert	CN=R3, O=Let's Encrypt, C=US	2023-11-27 08:19:05	2024-02-25 08:19:04	vetuni.cz, www.vetuni.cz 2 entries
11236122818 leaf cert	CN=R3, O=Let's Encrypt, C=US	2023-11-27 07:51:02	2024-02-25 07:51:01	vetuni.cz, www.vetuni.cz 2 entries
10742929668 leaf cert	CN=R3, O=Let's Encrypt, C=US	2023-09-28 07:54:35	2023-12-27 08:54:34	vetuni.cz, www.vetuni.cz 2 entries
10742033089 leaf cert	CN=R3, O=Let's Encrypt, C=US	2023-09-28 05:16:13	2023-12-27 06:16:12	vetuni.cz, www.vetuni.cz 2 entries

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://www.vetuni.cz/ 195.113.198.43	a		62		0			0	0	0
	img		8	1,315,727 Bytes	0	8	0	0	0	0
	link	stylesheet	8	84,679 Bytes	0	8	0	0	0	0
	link	other	2	4,286 Bytes	0	1	0	0	0	0
	meta	og	13	18,379 Bytes	0	2	0	0	0	0
	meta	twitter	4		0			0	0	0
	meta	other	7		0			0	0	0
	script		4	160,713 Bytes	1	3	1	0	0	0
https://www.vetuni.cz/error404.php	a		51		0			0	0	0
	img		2	16,699 Bytes	0	2	0	0	0	0
	link	stylesheet	8	84,679 Bytes	0	8	0	0	0	0
	link	other	2	4,286 Bytes	0	1	0	0	0	0
	meta	og	13	47,724 Bytes	1	2	0	0	0	0
	meta	twitter	4		0			0	0	0
	meta	other	7		0			0	0	0
	script		4	160,504 Bytes	1	3	1	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://www.vetuni.cz/ 195.113.198.43	a		#				1	ok
								ok


	a		/chci-studovat				2	ok
								ok


	a		/chci-studovat/celozivotni-vzdelavani				2	ok
								ok


	a		/chci-studovat/fakulty				2	ok
								ok


	a		/chci-studovat/uchazeci-o-studium				2	ok
								ok


	a		/index				1	ok
								ok


	a		/jsem-student				2	ok
								ok


	a		/jsem-student/informace-pro-studenty-1				2	ok
								ok


	a		/jsem-student/institut-celozivotniho-vzdelavani				2	ok
								ok


	a		/jsem-student/rychle-odkazy				2	ok
								ok


	a		/kontakt				2	ok
								ok


	a		/kontakt/ambulace-a-pohotovost				2	ok
								ok


	a		/kontakt/lide-na-vfu-brno				2	ok
								ok


	a		/kontakt/mapa-arealu				2	ok
								ok


	a		/kontakt/podatelna				2	ok
								ok


	a		/kontakt/zakladni-udaje				2	ok
								ok


	a		/o-univerzite				2	ok
								ok


	a		/o-univerzite/informace-o-univerzite				2	ok
								ok


	a		/o-univerzite/novinky-a-media				2	ok
								ok


	a		/o-univerzite/uredni-deska				2	ok
								ok


	a		/o-univerzite/uredni-deska/prohlaseni-o-pristupnosti				1	ok
								ok


	a		/o-univerzite/vyzkum-vyvoj-rozvoj				2	ok
								ok


	a		https://www.facebook.com/VetuniBrno/				1	ok
								ok


	a		https://www.instagram.com/vetuni_brno				1	ok
								ok


	a		https://www.linkedin.com/company/vetuni/mycompany/?viewAsMember=true				1	ok
								ok


	a		https://www.youtube.com/channel/UCRPO7V-e97OMnVdf3lmQbpw				1	ok
								ok


	a		https://x.com/vetuni_brno				1	ok
								ok


	a		mailto:podatelna@vfu.cz				1	ok
								ok


	a		mailto:vfu@vfu.cz				1	ok
								ok


	a		novinky				1	ok
								ok


	a		novinky/halove-zavody-sprezeni-15-3-2025				2	ok
								ok


	a		novinky/navsteva-prezidenta-republiky-25-2-2025				2	ok
								ok


	a		novinky/navsteva-prezidenta-republiky-s-choti				2	ok
								ok


	a		novinky/oceneni-studentu-za-sportovni-vysledky				2	ok
								ok


	a		novinky/rektor-necas-privital-na-vetuni-ministra-zemedelstvi-marka-vyborneho				2	ok
								ok


	a		novinky/univerzitni-ples-2025-je-za-nami				2	ok
								ok


	a		tel:+420541561111				1	ok
								ok


	img	src	/assets/images/eng.svg		200		1	ok
	alt: Změnit jazyk do Angličtiny			image/svg+xml X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 3369 Bytes
	ETag: "d29-62521900ce90c"

	img	src	/assets/images/vfu_cz.webp		200		1	ok
	alt: logo VETUNI			image/webp X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 13330 Bytes
	ETag: "3412-6238e88cee987"

	img	src	https://www.vetuni.cz/files/thumbs/1740215396_com.webp		200		1	ok
	alt: Univerzitní ples 2025 je za námi			image/webp X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 5896 Bytes
	ETag: "1708-62eb778881570"

	img	src	https://www.vetuni.cz/files/thumbs/1740487256_com.webp		200		1	ok
	alt: Náv&scaron;těva prezidenta republiky s chotí			image/webp X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 20816 Bytes
	ETag: "5150-62ef6c4af991a"

	img	src	https://www.vetuni.cz/files/thumbs/1741013907_com.webp		200		1	ok
	alt: Rektor Nečas přivítal na VETUNI ministra zemědělství Marka Výborného			image/webp X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 12416 Bytes
	ETag: "3080-62f71637e119e"

	img	src	https://www.vetuni.cz/files/thumbs/1741168710_com.webp		200		1	ok
	alt: Halové závody spřežení 15. 3. 2025			image/webp X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 17774 Bytes
	ETag: "456e-630227489ded1"

	img	src	https://www.vetuni.cz/files/thumbs/1742825317_com.webp		200		1	ok
	alt: Ocenění studentů za sportovní výsledky			image/webp X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 1001918 Bytes
	ETag: "f49be-6311a13f0d4a2"

	img	src	https://www.vetuni.cz/files/thumbs/2014_com.webp		200		1	ok
	alt: Náv&scaron;těva prezidenta republiky 25. 2. 2025			image/webp X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 240208 Bytes
	ETag: "3aa50-63022641eab5a"

	link	icon	/favicon.ico		200		1	ok
				image/vnd.microsoft.icon X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 with long duration found.			No Compression - 4286 Bytes
	ETag: "10be-62057d14c3afa"

	link	manifest	/manifest.json				1	ok
								ok


	link	stylesheet	/assets/css/all.min.css		200		2	ok
				text/css X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 - with long duration found.			Compression (gzip): 22447/96704 Bytes
	ETag: "179c0-623a52ccb207a-gzip"
	local SRI possible, possible hash-values: sha256-DwAiZ04mZs2CSEObNl5GSPsVM1KLXhMbu5dROsJXG8c= sha384-pHEhv7DfSy9YqBgog0XrF0dblv3zKwSdNovPEbTHFYk9Y3n+Pm+jK0vIi0it7IA1 sha512-D1+nAsdSfoJHxBH5XI8a9nACMLHp1EoPwYGSEx49FKvF0q00DyuiagypG6XvTQ3hg17XjlOB05rHCRNDdxr1Vg== <link rel="stylesheet" href="/assets/css/all.min.css" crossorigin="anonymous" integrity="sha256-DwAiZ04mZs2CSEObNl5GSPsVM1KLXhMbu5dROsJXG8c=" />

	link	stylesheet	/assets/css/bootstrap.min.css		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 - with long duration found.			Compression (gzip): 23916/160392 Bytes
	ETag: "27288-62057d19fe8ef-gzip"
	local SRI possible, possible hash-values: sha256-93wNFzm2GO3EoByj9rKZCwGjAJAwr0nujPaOgwUt8ZQ= sha384-TX8t27EcRE3e/ihU7zmQxVncDAy5uIKz4rEkgIXeMed4M0jlfIDPvg6uqKI2xXr2 sha512-oc9+XSs1H243/FRN9Rw62Fn8EtxjEYWHXRvjS43YtueEewbS6ObfXcJNyohjHqVKFPoXXUxwc+q1K7Dee6vv9g== <link rel="stylesheet" href="/assets/css/bootstrap.min.css" crossorigin="anonymous" integrity="sha256-93wNFzm2GO3EoByj9rKZCwGjAJAwr0nujPaOgwUt8ZQ=" />

	link	stylesheet	/assets/css/css.css?1743159358		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 - with long duration found.			Compression (gzip): 2674/8639 Bytes
	ETag: "21bf-62f2fb7b9eaf7-gzip"
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	meta	googlebot	index, follow, snippet, archive				1	ok
								ok


	meta	keywords	s, infinite, ups, vypadá, že, něco, pokazilozkuste, použít, vyhledávačjít, domů				1	ok
								ok


	meta	robots	index, follow				1	ok
								ok


	meta	theme-color	#478ac9				1	ok
								ok


	meta	twitter:card	summary				1	ok
								ok


	meta	twitter:description					1	ok
								ok


	meta	twitter:site	@VETUNI_Brno				1	ok
								ok


	meta	twitter:title	Stránka nebyla nalezena. – VETUNI				1	ok
								ok


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


	script	src	/assets/js/app.js?1743159358		200		1	ok
	defer attribute found			text/javascript X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 - with long duration found.			Compression (gzip): 1851/4264 Bytes
	ETag: "10a8-6315419fbaa61-gzip"
	local SRI possible, possible hash-values: sha256-E4m6zcBZPmplJb1LDMXRoxTj7oyt5a0UbhxJEohwKn8= sha384-mbfhyckLEHJQOY0KBpFA+dRfZArFduK46hmEa0Dy9Oj6LhOKaPbvt6MuQSFUkyEx sha512-8W3kbjhzs5KiBil6g/nP697dXrC3m0nrdWjVB5kW3exs+nGFrC0zpgZUZMZGMLDF0Os3QB+3Xc95s+80WpeMHg== <script src="/assets/js/app.js?1743159358" crossorigin="anonymous" integrity="sha256-E4m6zcBZPmplJb1LDMXRoxTj7oyt5a0UbhxJEohwKn8=" />

	script	src	/assets/js/jquery.min.js		200		1	ok
	Missing defer / async attribute.			text/javascript X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 - with long duration found.			Compression (gzip): 30910/89476 Bytes
	ETag: "15d84-62057d1ac2d93-gzip"
	local SRI possible, possible hash-values: sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0= sha384-ZvpUoO/+PpLXR1lu4jmpXWu80pZlYUAfxl5NsBMWOEPSjUn/6Z/hRTt8+pR6L4N2 sha512-bLT0Qm9VnAYZDflyKcBaQ2gg0hSYNQrJ8RilYldYQ1FxQYoCLtUjuuRuZo+fjqhx/qtq/1itJ0C2ejDxltZVFg== <script src="/assets/js/jquery.min.js" crossorigin="anonymous" integrity="sha256-9/aliU8dGd2tb6OSsuzixeV4y/faTqgFtohetphbbj0=" />

	script	src	/assets/js/menu.min.js?1743159358		200		1	ok
	async attribute found			text/javascript X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000 - with long duration found.			Compression (gzip): 4206/19616 Bytes
	ETag: "4ca0-631659a8fb51a-gzip"
	local SRI possible, possible hash-values: sha256-jqxzU27eQkWfTaQthnCO2WZ8MOhwidBOjaowWnkGFB8= sha384-vsMPVkP/ckPkC4pHpkX+bOqNc9gIZYXRZG0hH5CuK3Aakcd5xUDNGauVBqUkR05C sha512-oaqt2+RqX1+4ofP+f/IBAbFJ0xp+4McBZDg0abVlGiMcC4kyNAgt4vmvh+sfDNvclL1g5ajRJJOIL4SbXthzsw== <script src="/assets/js/menu.min.js?1743159358" crossorigin="anonymous" integrity="sha256-jqxzU27eQkWfTaQthnCO2WZ8MOhwidBOjaowWnkGFB8=" />

	script	src	https://www.googletagmanager.com/gtag/js?id=G-5N1118FWPP		200		1	Problems with Content-Type - Header - see details
	async attribute found			application/javascript; charset=UTF-8 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
	Cache-Control: max-age=900, private - max-age too short.			Compression (br): 123537/370298 Bytes
	Server-Header Access-Control-Allow-Origin: https://www.vetuni.cz			Cross-Origin Resource Sharing (CORS) not supported

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

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

Summary
	Good: No non-document-errors
	3 errors
	1 warnings
1.	error	Element `style` not allowed as child of element `h6` in this context. (Suppressing further errors from this subtree.)	1
2.	error	Element `style` not allowed as child of element `div` in this context. (Suppressing further errors from this subtree.)	1
3.	error	Bad value `https://www.w3.org/1999/xlink` for the attribute `xmlns:link` (only `http://www.w3.org/1999/xlink` permitted here).	1
4.	warning	Attribute `xmlns:xlink` with a value other than `http://www.w3.org/1999/xlink` is not serializable as XML 1.0 without changing document semantics.	1
Details
	Type	Message + Sample
1	error	Element `style` not allowed as child of element `h6` in this context. (Suppressing further errors from this subtree.)
		From line 2, column 5212 to line 2, column 5254
		t-1 notp"><style nonce="Z-pInnxHZ98jbE6lz6ba2wAAABA">.flag{
2	error	Element `style` not allowed as child of element `div` in this context. (Suppressing further errors from this subtree.)
		From line 2, column 15653 to line 2, column 15695
		ontainer"><style nonce="Z-pInnxHZ98jbE6lz6ba2wAAABA"> .btn{
3	error	Bad value `https://www.w3.org/1999/xlink` for the attribute `xmlns:link` (only `http://www.w3.org/1999/xlink` permitted here).
		From line 2, column 24137 to line 2, column 24208
		style=""><use xmlns:xlink="https://www.w3.org/1999/xlink" xlink:href="#svg-af2b"></use>
4	warning	Attribute `xmlns:xlink` with a value other than `http://www.w3.org/1999/xlink` is not serializable as XML 1.0 without changing document semantics.
		From line 2, column 24137 to line 2, column 24208
		style=""><use xmlns:xlink="https://www.w3.org/1999/xlink" xlink:href="#svg-af2b"></use>

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns.muni.cz, ns1.vetuni.cz

QNr.	Domain	Type	NS used
1	cz	NS	d.root-servers.net (2001:500:2d::d)
	Answer: a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz
2	ns.muni.cz: 147.251.4.33, 2001:718:801:404::33	NS	a.ns.nic.cz (2001:678:f::1)
	Answer: ns2.muni.cz 147.251.6.10, 2001:718:801:406::10
3	ns1.vetuni.cz: 195.113.198.35	NS	a.ns.nic.cz (2001:678:f::1)
	Answer: ns.muni.cz 147.251.4.33, 2001:718:801:404::33
4	ns2.muninet.cz	NS	a.ns.nic.cz (2001:678:f::1)
	Answer: ns.inecnet.cz, ns.muninet.cz
	Answer: ns.inecnet.cz 212.47.0.10
	Answer: ns.muninet.cz 217.69.96.9
5	net	NS	a.root-servers.net (2001:503:ba3e::2:30)
	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
6	nsa.ces.net: 195.113.144.205, 2001:718:1:1::144:205	NS	a.gtld-servers.net (2001:503:a83e::2:30)
7	decsys.vsb.cz: 158.196.149.9, 2001:718:1001:149::9	NS	a.ns.nic.cz (2001:678:f::1)
8	nsa.cesnet.cz: 195.113.144.228, 2001:718:1:101::144:228	NS	a.ns.nic.cz (2001:678:f::1)
	Answer: decsys.vsb.cz 158.196.149.9, 2001:718:1001:149::9
	Answer: nsa.ten.cz 2a02:4a8:ac24:115::101:67, 81.95.101.67
9	sk	NS	d.root-servers.net (2001:500:2d::d)
	Answer: a.tld.sk, b.tld.sk, c.tld.sk, e.tld.sk, f.tld.sk, g.tld.sk, h.tld.sk
10	sun.uakom.sk: 192.108.131.11, 2001:4118:100:1::11	NS	a.tld.sk (2001:678:70::1)
	Answer: ans.uakom.sk 194.160.185.188, 2001:4118:100:c::188
	Answer: ns.fei.stuba.sk 147.175.111.15, 2001:4118:10:6f00::f
11	ns2.muninet.cz: 217.69.96.26	A	ns.inecnet.cz (212.47.0.10)
12	ns2.muninet.cz: No AAAA record found	AAAA	ns.inecnet.cz (212.47.0.10)

14. CAA - Entries

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

15. TXT - Entries

Domainname	TXT Entry	Status	∑ Queries
vetuni.cz	2qa5xElNjZgFIRm2f8tI1K8VQNTJvV3rAcOWPWkzluL74oYXRENcgeVRaFnTleIG2EML1gXgUoO9fS6gJ2ZEjw==	ok	1
vetuni.cz	5SfsvWEMgxjjcIGtmWK4/5FonYR/2oFH+RCeQTRXDE6AhGW4583adrPJSyETrmq34idu5EH+k+5p0tSmIID6bA==	ok	1
vetuni.cz	google-site-verification=SS616g7O9rjS6xmaPTsyYJBe7gPYoIfp_TCcpAiU6Bk	ok	1
vetuni.cz	have-i-been-pwned-verification=08f67ed21f25e6b1bd8036f49dfdd0ac	ok	1
vetuni.cz	v=spf1 a:mail.vfu.cz include:spf.protection.outlook.com ip4:195.113.198.0/24 include:web.spf.e-fractal.cz ~all	ok	1
www.vetuni.cz		ok	1
_acme-challenge.vetuni.cz		Name Error - The domain name does not exist	1
_acme-challenge.www.vetuni.cz		Name Error - The domain name does not exist	1
_acme-challenge.vetuni.cz.vetuni.cz		Name Error - The domain name does not exist	1
_acme-challenge.www.vetuni.cz.vetuni.cz		Name Error - The domain name does not exist	1
_acme-challenge.www.vetuni.cz.www.vetuni.cz		Name Error - The domain name does not exist	1

16. DomainService - Entries

Type		Domain	Pref	Value	DNS-error	num Answers	Status	Description
MX		vetuni.cz	1	mx.cesnet.cz	0	2	ok
	A			195.113.161.46	0	1	ok
	AAAA			2001:718:1:a100::161:46	0	1	ok
	CNAME				0	0	ok
MX		vetuni.cz	1	mx2.cesnet.cz	0	2	ok
	A			195.113.144.198	0	1	ok
	AAAA			2001:718:1:1::144:198	0	1	ok
	CNAME				0	0	ok
_mta-sts	TXT	_mta-sts.vetuni.cz		v=STSv1; id=20240208131300			ok
	A	mta-sts.vetuni.cz		195.113.198.43			ok
	mta-sts.txt file	Content of https://mta-sts.vetuni.cz/.well-known/mta-sts.txt - see RFC 8461			text/plain; charset=utf-8		ok
				version: STSv1			ok
				mode: testing			ok
				mx: mx.cesnet.cz			ok
				mx: mx2.cesnet.cz			ok
				mx: *.vetuni.cz			ok
				mx: *.vfu.cz			ok
				max_age: 604800			ok
SMTP-TLS Reporting	TXT	_smtp._tls.vetuni.cz		v=TLSRPTv1; rua=mailto:postmaster@vfu.cz			ok
SPF	TXT	vetuni.cz		v=spf1 a:mail.vfu.cz include:spf.protection.outlook.com ip4:195.113.198.0/24 include:web.spf.e-fractal.cz ~all			ok
	A	mail.vfu.cz		195.113.198.77			ok
	TXT	spf.protection.outlook.com		v=spf1 ip4:40.92.0.0/15 ip4:40.107.0.0/16 ip4:52.100.0.0/15 ip4:52.102.0.0/16 ip4:52.103.0.0/17 ip4:104.47.0.0/17 ip6:2a01:111:f400::/48 ip6:2a01:111:f403::/49 ip6:2a01:111:f403:8000::/51 ip6:2a01:111:f403:c000::/51 ip6:2a01:111:f403:f000::/52 -all			ok
	TXT	web.spf.e-fractal.cz		v=spf1 ip4:81.0.228.0/25 -all			ok
_dmarc	TXT	_dmarc.vetuni.cz		v=DMARC1; p=quarantine; pct=100; rua=mailto:postmaster@vfu.cz; ruf=mailto:postmaster@vfu.cz			ok
	TXT	vetuni.cz._report._dmarc.vfu.cz		mailto:postmaster@vfu.cz			ok	Mail domain unequal current domain. Check required, if there is a confirming _report._dmarc-Record. See RFC 7489, 7.1.
	TXT	vetuni.cz._report._dmarc.vfu.cz					16	Domainname not defined: NXDOMAIN. Report not sent.

17. Cipher Suites

Summary
Domain	IP	Port	num Ciphers	time	Std.Protocol	Forward Secrecy
vetuni.cz	195.113.198.43	443	5 Ciphers	36.32 sec		0 without, 5 FS	100.00 %
www.vetuni.cz	195.113.198.43	443	5 Ciphers	36.56 sec		0 without, 5 FS	100.00 %
Complete		2	10 Ciphers 5.00 Ciphers/Check	72.89 sec	36.44 sec/Check	0 without, 10 FS	100.00 %

Details
Domain	IP	Port	Cipher (OpenSsl / IANA)
vetuni.cz	195.113.198.43	443	ECDHE-RSA-CHACHA20-POLY1305		(Secure)	TLSv1.2	0xCC,0xA8	FS
5 Ciphers, 36.32 sec			TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		RSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-RSA-AES256-GCM-SHA384		(Secure)	TLSv1.2	0xC0,0x30	FS
			TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
			ECDH		RSA	AESGCM(256)	AEAD
			DHE-RSA-AES256-GCM-SHA384		(Secure)	TLSv1.2	0x00,0x9F	FS
			TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
			DH		RSA	AESGCM(256)	AEAD
			ECDHE-RSA-AES128-GCM-SHA256		(Secure)	TLSv1.2	0xC0,0x2F	FS
			TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
			ECDH		RSA	AESGCM(128)	AEAD
			DHE-RSA-AES128-GCM-SHA256		(Secure)	TLSv1.2	0x00,0x9E	FS
			TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
			DH		RSA	AESGCM(128)	AEAD
www.vetuni.cz	195.113.198.43	443	ECDHE-RSA-CHACHA20-POLY1305		(Secure)	TLSv1.2	0xCC,0xA8	FS
5 Ciphers, 36.56 sec			TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		RSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-RSA-AES256-GCM-SHA384		(Secure)	TLSv1.2	0xC0,0x30	FS
			TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
			ECDH		RSA	AESGCM(256)	AEAD
			DHE-RSA-AES256-GCM-SHA384		(Secure)	TLSv1.2	0x00,0x9F	FS
			TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
			DH		RSA	AESGCM(256)	AEAD
			ECDHE-RSA-AES128-GCM-SHA256		(Secure)	TLSv1.2	0xC0,0x2F	FS
			TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
			ECDH		RSA	AESGCM(128)	AEAD
			DHE-RSA-AES128-GCM-SHA256		(Secure)	TLSv1.2	0x00,0x9E	FS
			TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
			DH		RSA	AESGCM(128)	AEAD

18. Portchecks

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

Permalink: https://check-your-website.server-daten.de/?i=ebb6413e-42f8-46cf-b5bf-283e9d4992e5

Last Result: https://check-your-website.server-daten.de/?q=vetuni.cz - 2025-03-31 09:46:40

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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