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

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Hall of Fame - A+ and A

 

Shortcuts: 1. IP-Addresses | 2. DNSSEC | 3. Name Servers | 4. SOA-Entries | 5. Screenshots | 6. Url-Checks | 7. Comments | 8. Connections | 9. Certificates | 10. CT-Logs | 11. Html-Content | 12. Html-Parsing | 13. NameServer-IPAddresses | 14. CAA | 15. TXT | 16. DomainServiceEntries | 17. Cipher Suites | 18. Portchecks |

 

I

 

Content problems - mixed content, missing files etc.

 

Checked:
28.03.2025 08:59:35

 

Older results

 

A - 13.02.2024 09:32:54
N - 08.02.2024 11:55:17
N - 13.03.2023 12:30:07
N - 13.03.2023 12:22:02
N - 23.06.2021 13:42:52
N - 11.05.2021 09:42:49

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
vfu.cz
A
195.113.198.43
Brno/South Moravian/Czechia (CZ) - CESNET-TCZ
Hostname: fvl.vfu.cz
yes
1
0

AAAA

yes


www.vfu.cz
A
195.113.198.43
Brno/South Moravian/Czechia (CZ) - CESNET-TCZ
Hostname: fvl.vfu.cz
yes
1
0

AAAA

yes


*.vfu.cz
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


mta-sts.vfu.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: 10.04.2025, 05:00:00 +, Signature-Inception: 28.03.2025, 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: 06.04.2025, 00:21:34 +, Signature-Inception: 22.03.2025, 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: vfu.cz

vfu.cz
2 DS RR in the parent zone found






DS with Algorithm 13, KeyTag 36392, DigestType 2 and Digest ld2pLyj5a6m/nSs7pLmBJg3TZ3G82qHRgMaKz7/FxxY=






DS with Algorithm 13, KeyTag 41994, DigestType 2 and Digest RnZqY5pvGEIa8F6CxETM/yKTTttgiGdrq/PeoBtEPkU=






1 RRSIG RR to validate DS RR found






RRSIG-Owner vfu.cz., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 29.03.2025, 19:46:51 +, Signature-Inception: 15.03.2025, 18:16:51 +, 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 3049, Flags 256






Public Key with Algorithm 13, KeyTag 36392, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 13, KeyTag 41994, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 13, KeyTag 64577, Flags 256






2 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner vfu.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 3049, Signer-Name: vfu.cz






RRSIG-Owner vfu.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 41994, Signer-Name: vfu.cz






• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 3049 used to validate the DNSKEY RRSet






• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 41994 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 41994, DigestType 2 and Digest "RnZqY5pvGEIa8F6CxETM/yKTTttgiGdrq/PeoBtEPkU=" 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 vfu.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 3049, Signer-Name: vfu.cz






RRSIG Type 16 validates the TXT - Result: google-site-verification=miyd3SOaQ9HBeQkKsnfwKvLmzqtV4-OlOcIrNghIsLs xziceQbIhF6CnfeURUu91VytNd4amJrIQrrBdiliUD+WunyjZQ53q/MyI/1uJonDMPRoWoPmHZgfXFpG7moCog== v=spf1 a:mail.vfu.cz include:spf.protection.outlook.com ip4:195.113.198.0/24 include:web.spf.e-fractal.cz ip6:2603:10a6:150:1::20 ~all
Validated: RRSIG-Owner vfu.cz., Algorithm: 13, 2 Labels, original TTL: 120 sec, Signature-expiration: 04.04.2025, 12:46:45 +, Signature-Inception: 25.03.2025, 11:46:45 +, KeyTag 3049, Signer-Name: vfu.cz






CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "d5sb912lqvc13sdlape0oelrcd8c5voe" equal the hashed NSEC3-owner "d5sb912lqvc13sdlape0oelrcd8c5voe" and the hashed NextOwner "d686buhqlucprutiotagekh1qk90gl0b". 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 d5sb912lqvc13sdlape0oelrcd8c5voe.vfu.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 06.04.2025, 15:10:56 +, Signature-Inception: 27.03.2025, 14:10:56 +, KeyTag 3049, Signer-Name: vfu.cz






Status: Good. NoData-Proof required and found.






AAAA-Query sends a valid NSEC3 RR as result with the hashed query name "d5sb912lqvc13sdlape0oelrcd8c5voe" equal the hashed NSEC3-owner "d5sb912lqvc13sdlape0oelrcd8c5voe" and the hashed NextOwner "d686buhqlucprutiotagekh1qk90gl0b". 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 d5sb912lqvc13sdlape0oelrcd8c5voe.vfu.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 06.04.2025, 15:10:56 +, Signature-Inception: 27.03.2025, 14:10:56 +, KeyTag 3049, Signer-Name: vfu.cz






Status: Good. NoData-Proof required and found.






TLSA-Query (_443._tcp.vfu.cz) sends a valid NSEC3 RR as result with the hashed owner name "c3q2s2o23ep5a1enghsl1kl41l1sga15" (unhashed: _tcp.vfu.cz). So that's the Closest Encloser of the query name.
Bitmap: No Bitmap? Validated: RRSIG-Owner c3q2s2o23ep5a1enghsl1kl41l1sga15.vfu.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 3049, Signer-Name: vfu.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 "8bkm8gecoui3g2c06ep5ls4091o88d50" (unhashed: *._tcp.vfu.cz) with the owner "7slmvsoule76utgjt7f83mhc0ntvr04r" and the NextOwner "8isj8eiec4dp1pq41ca80e7k4on2c2aq". So that NSEC3 confirms the not-existence of the Wildcard expansion.
Bitmap: A, RRSIG Validated: RRSIG-Owner 7slmvsoule76utgjt7f83mhc0ntvr04r.vfu.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 05.04.2025, 11:10:59 +, Signature-Inception: 26.03.2025, 10:10:59 +, KeyTag 3049, Signer-Name: vfu.cz






Status: Good. NXDomain-Proof required and found.






TLSA-Query (_443._tcp.vfu.cz) sends a valid NSEC3 RR as result with the hashed query name "0i1pl7vfv3bvss5uc5549cibn4m4fe23" between the hashed NSEC3-owner "0gngoohv4ht717matp7ca8cg8iii714r" and the hashed NextOwner "0kr2uo7f6d4amgf4dg0vhjlm4gb0hmet". So the zone confirmes the not-existence of that TLSA RR.
Bitmap: A, RRSIG Validated: RRSIG-Owner 0gngoohv4ht717matp7ca8cg8iii714r.vfu.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 3049, Signer-Name: vfu.cz






Status: Good. NXDomain-Proof required and found.






CAA-Query sends a valid NSEC3 RR as result with the hashed query name "d5sb912lqvc13sdlape0oelrcd8c5voe" equal the hashed NSEC3-owner "d5sb912lqvc13sdlape0oelrcd8c5voe" and the hashed NextOwner "d686buhqlucprutiotagekh1qk90gl0b". 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 d5sb912lqvc13sdlape0oelrcd8c5voe.vfu.cz., Algorithm: 13, 3 Labels, original TTL: 7200 sec, Signature-expiration: 06.04.2025, 15:10:56 +, Signature-Inception: 27.03.2025, 14:10:56 +, KeyTag 3049, Signer-Name: vfu.cz






Status: Good. NoData-Proof required and found.



Zone: www.vfu.cz

www.vfu.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 "au8ku3v817cm1k53fpnri8laaoa0qv5j" between the hashed NSEC3-owner "au8ku3v817cm1k53fpnri8laaoa0qv5j" and the hashed NextOwner "b0ug3sq4ligl5ct91b8v49djmaorj3gh". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: A, RRSIG Validated: RRSIG-Owner au8ku3v817cm1k53fpnri8laaoa0qv5j.vfu.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 3049, Signer-Name: vfu.cz






RRSIG Type 1 validates the A - Result: 195.113.198.43
Validated: RRSIG-Owner www.vfu.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 3049, Signer-Name: vfu.cz






CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "au8ku3v817cm1k53fpnri8laaoa0qv5j" equal the hashed NSEC3-owner "au8ku3v817cm1k53fpnri8laaoa0qv5j" and the hashed NextOwner "b0ug3sq4ligl5ct91b8v49djmaorj3gh". 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 au8ku3v817cm1k53fpnri8laaoa0qv5j.vfu.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 3049, Signer-Name: vfu.cz






Status: Good. NoData-Proof required and found.






TXT-Query sends a valid NSEC3 RR as result with the hashed query name "au8ku3v817cm1k53fpnri8laaoa0qv5j" equal the hashed NSEC3-owner "au8ku3v817cm1k53fpnri8laaoa0qv5j" and the hashed NextOwner "b0ug3sq4ligl5ct91b8v49djmaorj3gh". 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 au8ku3v817cm1k53fpnri8laaoa0qv5j.vfu.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 3049, Signer-Name: vfu.cz






Status: Good. NoData-Proof required and found.






AAAA-Query sends a valid NSEC3 RR as result with the hashed query name "au8ku3v817cm1k53fpnri8laaoa0qv5j" equal the hashed NSEC3-owner "au8ku3v817cm1k53fpnri8laaoa0qv5j" and the hashed NextOwner "b0ug3sq4ligl5ct91b8v49djmaorj3gh". 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 au8ku3v817cm1k53fpnri8laaoa0qv5j.vfu.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 3049, Signer-Name: vfu.cz






Status: Good. NoData-Proof required and found.






TLSA-Query (_443._tcp.www.vfu.cz) sends a valid NSEC3 RR as result with the hashed owner name "au8ku3v817cm1k53fpnri8laaoa0qv5j" (unhashed: www.vfu.cz). So that's the Closest Encloser of the query name.
Bitmap: A, RRSIG Validated: RRSIG-Owner au8ku3v817cm1k53fpnri8laaoa0qv5j.vfu.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 3049, Signer-Name: vfu.cz






Status: Good. NXDomain-Proof required and found.






TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Next Closer Name "98oreevp4b7v7eufoonh2bljce011urk" (unhashed: _tcp.www.vfu.cz) with the owner "93cqbt4r1dt0uuknc75kl4ocepcdemjl" and the NextOwner "999du7aj3gs2d4vqheohs393dciujrdp". So that NSEC3 confirms the not-existence of the Next Closer Name.
Bitmap: A, RRSIG Validated: RRSIG-Owner 93cqbt4r1dt0uuknc75kl4ocepcdemjl.vfu.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 3049, Signer-Name: vfu.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 "4p424hv5s1ns5q9odaa9rrml13rl8m6p" (unhashed: *.www.vfu.cz) with the owner "4og4oqduclrfocmbq4u0ghiciplppuvq" and the NextOwner "4qqhjh15jsbsa8saahunj0422agfg1n1". So that NSEC3 confirms the not-existence of the Wildcard expansion.
Bitmap: A, RRSIG Validated: RRSIG-Owner 4og4oqduclrfocmbq4u0ghiciplppuvq.vfu.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 3049, Signer-Name: vfu.cz






Status: Good. NXDomain-Proof required and found.






CAA-Query sends a valid NSEC3 RR as result with the hashed query name "au8ku3v817cm1k53fpnri8laaoa0qv5j" equal the hashed NSEC3-owner "au8ku3v817cm1k53fpnri8laaoa0qv5j" and the hashed NextOwner "b0ug3sq4ligl5ct91b8v49djmaorj3gh". 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 au8ku3v817cm1k53fpnri8laaoa0qv5j.vfu.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 3049, Signer-Name: vfu.cz






Status: Good. NoData-Proof required and found.

 

3. Name Servers

DomainNameserverNS-IP
www.vfu.cz
•  ns1.vetuni.cz
•
vfu.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:1743148011
Refresh:900
Retry:300
Expire:604800
TTL:900
num Entries:4


Domain:vfu.cz
Zone-Name:vfu.cz
Primary:ns1.vetuni.cz
Mail:jdvor.vfu.cz
Serial:2025021036
Refresh:86400
Retry:7200
Expire:1209600
TTL:7200
num Entries:3


Domain:www.vfu.cz
Zone-Name:vfu.cz
Primary:ns1.vetuni.cz
Mail:jdvor.vfu.cz
Serial:2025021036
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 2025-03-28 09:03:12 +00:0

 

Mobil (412px x 732px)

 

1091 milliseconds

 

Screenshot mobile - https://www.vetuni.cz/
Mobil + Landscape (732px x 412px)

 

1057 milliseconds

 

Screenshot mobile landscape - https://www.vetuni.cz/
Screen (1280px x 1680px)

 

1290 milliseconds

 

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

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport396732
content Size3963587

 

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

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://vfu.cz/
195.113.198.43
301
https://www.vetuni.cz/
Html is minified: 103.14 %
0.054
E
Date: Fri, 28 Mar 2025 08:00:23 GMT
Server: VETUNI
Location: https://www.vetuni.cz/
Content-Length: 230
Content-Type: text/html; charset=iso-8859-1

• http://www.vfu.cz/
195.113.198.43
301
https://www.vetuni.cz/
Html is minified: 103.14 %
0.027
E
Date: Fri, 28 Mar 2025 08:00:23 GMT
Server: VETUNI
Location: https://www.vetuni.cz/
Content-Length: 230
Content-Type: text/html; charset=iso-8859-1

• https://vfu.cz/
195.113.198.43
301
https://www.vetuni.cz/
Html is minified: 103.14 %
3.286
A
Date: Fri, 28 Mar 2025 08:00:23 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.vfu.cz/
195.113.198.43
301
https://www.vetuni.cz/
Html is minified: 103.14 %
3.287
A
Date: Fri, 28 Mar 2025 08:00:28 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://mta-sts.vfu.cz/.well-known/mta-sts.txt
195.113.198.43 gzip used - 97 / 109 - 11.01 %
200



A
0 None CN=mta-sts.vfu.cz
Date: Fri, 28 Mar 2025 08:01:19 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-ZXTwttSHgMle44SPWNQAAAAAQ' data: https:; style-src 'self' 'nonce-Z-ZXTwttSHgMle44SPWNQAAAAAQ' 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

• https://www.vetuni.cz/
gzip used - 5056 / 26455 - 80.89 %
Inline-JavaScript (∑/total): 1/139 Inline-CSS (∑/total): 2/783		200

Html is minified: 104.26 %
Other inline scripts (∑/total): 1/777		3.540
I
Date: Fri, 28 Mar 2025 08:00:38 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: 5056
Content-Type: text/html; charset=UTF-8

• http://vfu.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/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 102.40 %
Other inline scripts (∑/total): 0/0		0.050
E
Visible Content:
Date: Fri, 28 Mar 2025 08:00:33 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/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 299
Content-Type: text/html; charset=iso-8859-1

• http://www.vfu.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/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 102.40 %
Other inline scripts (∑/total): 0/0		0.030
E
Visible Content:
Date: Fri, 28 Mar 2025 08:00:33 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/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 299
Content-Type: text/html; charset=iso-8859-1

• https://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
gzip used - 9598 / 34450 - 72.14 %
Inline-JavaScript (∑/total): 1/139 Inline-CSS (∑/total): 2/783		200

Html is minified: 108.35 %
Other inline scripts (∑/total): 1/777		3.383

Visible Content:
Date: Fri, 28 Mar 2025 08:00:43 GMT
Server: VETUNI
Cache-Control: no-store, must-revalidate, no-cache
Pragma: no-cache
Set-Cookie: PHPSESSID=i7oumhc1r3a0mo5hcshbjkg64b; path=/
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: 9598
Content-Type: text/html; charset=UTF-8

• https://195.113.198.43/
195.113.198.43
301
https://www.vetuni.cz/
Html is minified: 103.14 %
3.267
N
Certificate error: RemoteCertificateNameMismatch
Date: Fri, 28 Mar 2025 08:00:33 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

Aname "vfu.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)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: vfu.cz has only one ip address.
Warning: Only one ip address found: www.vfu.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: vfu.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.vfu.cz has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
Ahttps://www.vfu.cz/ 195.113.198.43
301
https://www.vetuni.cz/
Correct redirect https to https
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: www is preferred
AGood: No cookie sent via http.
AGood: every https has a Strict Transport Security Header
AGood: HSTS max-age is long enough, 63072000 seconds = 730 days
AGood: HSTS has includeSubdomains - directive
AGood: HSTS has preload directive
AExcellent: Domain is in the Google-Preload-List
AExcellent: Domain is in the Mozilla/Firefox-Preload-List
AHSTS-Preload-Status: Preloaded. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
Bhttps://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200
PHPSESSID=i7oumhc1r3a0mo5hcshbjkg64b; path=/
Cookie sent via https, but not marked as secure
Bhttps://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200
PHPSESSID=i7oumhc1r3a0mo5hcshbjkg64b; path=/
Cookie without a SameSite-Attribute. Possible values are: Strict/Lax/None. Cookie may not work as expected, if "None" is wanted, but browsers use "Lax" as default value.
Ehttp://vfu.cz/ 195.113.198.43
301
https://www.vetuni.cz/
Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Ehttp://www.vfu.cz/ 195.113.198.43
301
https://www.vetuni.cz/
Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
Ihttps://www.vetuni.cz/
200

Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
Ihttps://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
Nhttps://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 different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain vfu.cz, 1 ip addresses.
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 different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain www.vfu.cz, 1 ip addresses.
AGood: _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Domainname: _mta-sts.vfu.cz
AGood: _mta-sts TXT record is valid.
AGood: Subdomain mta-sts found: Subdomain-name: mta-sts.vfu.cz, ip : 195.113.198.43
AGood: Certificate of subdomain is valid. mta-sts.vfu.cz, ip : 195.113.198.43
AGood: /.well-known/mta-sts.txt with http status 200 found. Complete path: https://mta-sts.vfu.cz/.well-known/mta-sts.txt - ip : 195.113.198.43
AGood: mta-sts.txt has the required names "version", "mode", "max_age". mta-sts.vfu.cz, ip : 195.113.198.43
AGood: Minimal one mx definition found. mta-sts.vfu.cz, ip : 195.113.198.43
AExcellent: Complete and valid MTA-STS found!

2. Header-Checks

Awww.vetuni.cz
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=()
Bwww.vetuni.cz
Cross-Origin-Embedder-Policy
Info: Missing Header
Bwww.vetuni.cz
Cross-Origin-Opener-Policy
Info: Missing Header
Bwww.vetuni.cz
Cross-Origin-Resource-Policy
Info: Missing Header

3. DNS- and NameServer - Checks

AInfo:: 12 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 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.
AGood: 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.
AInfo:: 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.
AGood: Only one SOA.Primary Name Server found.: ns1.vetuni.cz.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.vetuni.cz.
AGood: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: ns.muni.cz, ns1.vetuni.cz
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 2 different Name Servers found
AGood: 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
AGood: 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
AInfo: 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.
AExcellent: Every Name Server IPv4-address starts with an unique Byte.
AInfo: 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.
AGood: Nameserver supports TCP connections: 3 good Nameserver
AInfo: Nameserver mit different domain names found. May be a problem with DNS-Updates
AGood: Nameserver supports Echo Capitalization: 3 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 3 good Nameserver
AGood: 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.
AGood: All SOA have the same Serial Number
Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.

4. Content- and Performance-critical Checks

https://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

Warning: Not existing ACME-file, but Server sends 200, not 404 or redirect. May be a problem creating a Letsencrypt certificate. Checking /.well-known/acme-challenge/random-filename - a http status 404 - Not Found - is expected. If your server sends content and a http status 200, the validation file (87 bytes, token, dot and the hash of the public part of the account key) may be invisible, so Letsencrypt can't validate your domain. If it is an application that sends this content, perhaps create an exception, so /.well-known/acme-challenge sends raw files. Or create a redirect to another domain and / or port 443, but your Letsencrypt client must support such a solution. Certbot: Use webroot as authenticator - https://certbot.eff.org/docs/using.html Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
AGood: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
https://www.vetuni.cz/
200

Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
https://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
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.
AGood: Every https connection via port 443 supports the http/2 protocol via ALPN.
AGood: 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/
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/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
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.
AGood: 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.
AGood: 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.
AGood: 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
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: All img-elements have a valid alt-attribute.: 10 img-elements found.
AGood: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
ADuration: 223476 milliseconds, 223.476 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
vfu.cz
195.113.198.43
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
vfu.cz
195.113.198.43
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
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)

1CN=vfu.cz


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


www.vfu.cz
195.113.198.43
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

www.vfu.cz
195.113.198.43
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
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)

1CN=vfu.cz


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


www.vetuni.cz
www.vetuni.cz
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

www.vetuni.cz
www.vetuni.cz
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
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)

1CN=vetuni.cz


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


mta-sts.vfu.cz
195.113.198.43
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

mta-sts.vfu.cz
195.113.198.43
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
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)

1CN=mta-sts.vfu.cz


2CN=R10, O=Let's Encrypt, C=US


195.113.198.43
195.113.198.43
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

195.113.198.43
195.113.198.43
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
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)

1CN=vetuni.cz


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

 

9. Certificates

1.
1.
CN=vfu.cz
03.02.2025
04.05.2025
67 days expired		vfu.cz, www.vfu.cz - 2 entries
1.
1.
CN=vfu.cz
03.02.2025

04.05.2025
67 days expired


vfu.cz, www.vfu.cz - 2 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:038287B234D5FD159C2DB56F9E3671939ACF
Thumbprint:2001A999074016B7E3CE7F0F602C08E10C0AE744
SHA256 / Certificate:vUm6g2AcSp2DxREoFWX/H46Go+bOE5Iqnt1665VjDV8=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):f151d18699ed17b75bcab782b68e1e1576efaf273b21e2865b27faecccf0c665
SHA256 hex / Subject Public Key Information (SPKI):f151d18699ed17b75bcab782b68e1e1576efaf273b21e2865b27faecccf0c665 (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)




2.
CN=R11, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 611 days

2.
CN=R11, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 611 days




KeyalgorithmRSA 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)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3616 days

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

04.06.2035
expires in 3616 days




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




2.
1.
CN=vetuni.cz
29.01.2025
29.04.2025
72 days expired		vetuni.cz, www.vetuni.cz - 2 entries
2.
1.
CN=vetuni.cz
29.01.2025

29.04.2025
72 days expired


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

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:031A332861B7F35B6E631DDEB005A9A84060
Thumbprint:0F906DCF553A5D3BC13613F0A56680ABD755A99E
SHA256 / Certificate:ehR3ZNGOt8r0Zqrqz5kBUbO9WarbNa/59cmTIRJFji0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):78ad62af19fafc17d265ce29ecec2af4f2ec6a3fc97e5ea019aa1fa36fa4aa02
SHA256 hex / Subject Public Key Information (SPKI):78ad62af19fafc17d265ce29ecec2af4f2ec6a3fc97e5ea019aa1fa36fa4aa02 (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)




2.
CN=R11, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 611 days

2.
CN=R11, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 611 days




KeyalgorithmRSA 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)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3616 days

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

04.06.2035
expires in 3616 days




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




3.
1.
CN=mta-sts.vfu.cz
03.02.2025
04.05.2025
67 days expired		mta-sts.vfu.cz - 1 entry
3.
1.
CN=mta-sts.vfu.cz
03.02.2025

04.05.2025
67 days expired


mta-sts.vfu.cz - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:03E6012979B5FC49AC84F3190702550FCAB1
Thumbprint:F667FA22C65C2C84B159309B0D9D48646AD7A654
SHA256 / Certificate:NS6aJeLV1hXqS+QIlYz7JQ/TD+SRvLHmXHU3HxdpG10=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):9c41cf341805af4483c002b7335a635cd927858979c3781dafb1f7bda0149a20
SHA256 hex / Subject Public Key Information (SPKI):9c41cf341805af4483c002b7335a635cd927858979c3781dafb1f7bda0149a20 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
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)




2.
CN=R10, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 611 days

2.
CN=R10, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 611 days




KeyalgorithmRSA 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)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3616 days

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

04.06.2035
expires in 3616 days




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




 

10. Last Certificates - Certificate Transparency Log Check

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

Issuerlast 7 daysactivenum Certs
CN=GEANT OV RSA CA 4, O=GEANT Vereniging, C=NL
0
0
2
CN=R3, O=Let's Encrypt, C=US
0
0
1
CN=R11, O=Let's Encrypt, C=US
0
0
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
9400505555
leaf cert		CN=R11, O=Let's Encrypt, C=US
2025-02-03 15:29:17
2025-05-04 15:29:16
vfu.cz, www.vfu.cz - 2 entries


7504892169
leaf cert		CN=GEANT OV RSA CA 4, O=GEANT Vereniging, C=NL
2024-06-14 00:00:00
2025-06-14 23:59:59
vfu.cz, vfu-dc.vfu.cz - 2 entries


6719092940
leaf cert		CN=R3, O=Let's Encrypt, C=US
2024-02-08 10:19:55
2024-05-08 10:19:54
vfu.cz, www.vfu.cz - 2 entries


5544150822
leaf cert		CN=GEANT OV RSA CA 4, O=GEANT Vereniging, C=NL
2023-07-18 00:00:00
2024-07-17 23:59:59
faf.vfu.cz, faf2.vfu.cz, fvhe.vfu.cz, fvhe2.vfu.cz, fvl.vfu.cz, fvl2.vfu.cz, sis.vfu.cz, soubory.vfu.cz, www.vfu.cz, www2.vfu.cz - 10 entries


 

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

Issuerlast 7 daysactivenum Certs
CN=GEANT OV RSA CA 4, O=GEANT Vereniging, C=NL
0
0
1
CN=R10, O=Let's Encrypt, C=US
0
0
1

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
14818845129
leaf cert		CN=R10, O=Let's Encrypt, C=US
2024-10-06 04:40:01
2025-01-04 05:40:00
vfu.cz, www.vfu.cz
2 entries


13391430956
leaf cert		CN=GEANT OV RSA CA 4, O=GEANT Vereniging, C=NL
2024-06-13 22:00:00
2025-06-14 21:59:59
vfu.cz, vfu-dc.vfu.cz
2 entries


 

11. Html-Content - Entries

Summary


Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://www.vetuni.cz/
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
18,387 Bytes
0
2
0
0
0
0


meta
twitter
4

0


0
0
0


meta
other
7

0


0
0
0


script

4
160,464 Bytes
1
3
1
0
0
0

https://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
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
22,931 Bytes
0
2
0
0
0
0


meta
twitter
4

0


0
0
0


meta
other
7

0


0
0
0


script

4
160,464 Bytes
1
3
1
0
0
0

 

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

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsg∑Status
https://www.vetuni.cz/

a

#


1
ok















a

/chci-studovat


2
ok















a

/chci-studovat/celozivotni-vzdelavani


2
ok















a

/chci-studovat/fakulty


2
ok















a

/chci-studovat/uchazeci-o-studium


2
ok















a

/index


1
ok















a

/jsem-student


2
ok















a

/jsem-student/informace-pro-studenty-1


2
ok















a

/jsem-student/institut-celozivotniho-vzdelavani


2
ok















a

/jsem-student/rychle-odkazy


2
ok















a

/kontakt


2
ok















a

/kontakt/ambulace-a-pohotovost


2
ok















a

/kontakt/lide-na-vfu-brno


2
ok















a

/kontakt/mapa-arealu


2
ok















a

/kontakt/podatelna


2
ok















a

/kontakt/zakladni-udaje


2
ok















a

/o-univerzite


2
ok















a

/o-univerzite/informace-o-univerzite


2
ok















a

/o-univerzite/novinky-a-media


2
ok















a

/o-univerzite/uredni-deska


2
ok















a

/o-univerzite/uredni-deska/prohlaseni-o-pristupnosti


1
ok















a

/o-univerzite/vyzkum-vyvoj-rozvoj


2
ok















a

https://www.facebook.com/VetuniBrno/


1
ok















a

https://www.instagram.com/vetuni_brno


1
ok















a

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


1
ok















a

https://www.youtube.com/channel/UCRPO7V-e97OMnVdf3lmQbpw


1
ok















a

https://x.com/vetuni_brno


1
ok















a

mailto:podatelna@vfu.cz


1
ok















a

mailto:vfu@vfu.cz


1
ok















a

novinky


1
ok















a

novinky/halove-zavody-sprezeni-15-3-2025


2
ok















a

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


2
ok















a

novinky/navsteva-prezidenta-republiky-s-choti


2
ok















a

novinky/oceneni-studentu-za-sportovni-vysledky


2
ok















a

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


2
ok















a

novinky/univerzitni-ples-2025-je-za-nami


2
ok















a

tel:+420541561111


1
ok















img
src
/assets/images/eng.svg
200

1
ok
alt: Změnit jazyk do Angličtinyimage/svg+xml
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 with long duration found.
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stylesheet
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Compression (gzip): 2674/8639 Bytes






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local SRI possible, possible hash-values:

 

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Cache-Control: public, max-age=31536000 - with long duration found.
64 Bytes






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local SRI possible, possible hash-values:

 

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Compression (gzip): 9743/63380 Bytes






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local SRI possible, possible hash-values:

 

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Compression (gzip): 1413/4695 Bytes






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local SRI possible, possible hash-values:

 

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Compression (gzip): 1975/14585 Bytes






ETag: "38f9-62f2fbda9c234-gzip"

local SRI possible, possible hash-values:

 

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5057 Bytes








meta
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Compression (gzip): 1851/4264 Bytes






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script
src
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Missing defer / async attribute. text/javascript
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Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 30910/89476 Bytes






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local SRI possible, possible hash-values:

 

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script
src
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ok
async attribute found text/javascript
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Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 4206/19616 Bytes






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local SRI possible, possible hash-values:

 

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script
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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.


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/o-univerzite/uredni-deska/prohlaseni-o-pristupnosti


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/o-univerzite/vyzkum-vyvoj-rozvoj


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https://www.instagram.com/vetuni_brno


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tel:+420541561111


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vyhledavani


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src
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X-Content-Type-Options nosniff found




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src
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X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 with long duration found.
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link
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manifest
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ok















link
stylesheet
/assets/css/all.min.css
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2
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text/css
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 22447/96704 Bytes






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link
stylesheet
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1
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X-Content-Type-Options nosniff found




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:

 

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link
stylesheet
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X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 2674/8639 Bytes






ETag: "21bf-62f2fb7b9eaf7-gzip"

local SRI possible, possible hash-values:

 

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link
stylesheet
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text/css
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 - with long duration found.
64 Bytes






ETag: "4b-62f2fb0083f24-gzip"

local SRI possible, possible hash-values:

 

sha256-Qgqbq2shIDqbzeCdgBUj+bcB7n4z8voyLGZfRUYVO0k=
sha384-GMc4P5KFLkOyYaW3koHHeOBYf9NhdIQkSjsC+exvff4YpsNQf9Sn+CoMhvkn8ktG
sha512-qBNFlPw8JKhILbs3gSSax84rTry7udsIhOHJdAqoDRxAx5vfJOpk40rqTHyVWWDr78zYBhGXA8UVUhI4M/9jFQ==

 

<link rel="stylesheet" href="/assets/css/css_button_menu.css?1743087157" crossorigin="anonymous" integrity="sha256-Qgqbq2shIDqbzeCdgBUj+bcB7n4z8voyLGZfRUYVO0k=" />



link
stylesheet
/assets/css/nicepage.min.css?1743087157
200

1
ok
text/css
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 9743/63380 Bytes






ETag: "f794-62521d0189769-gzip"

local SRI possible, possible hash-values:

 

sha256-tpBCDbL3AQ1Wy4DjHfL/rhdBOVxdrRXWeSM9i39CdbQ=
sha384-w5wkpGeTDV+2DF1fktP2xh7dRsPIMK/aw9JKzlK9eaVxlkseyqNv7Sik5OZ4xJqM
sha512-tHP8ubVcs1nDazzV/cuVBE/J2/wnWuZlj4LAV5b8A37mBNd0HLGRVPOPMcjHDuaVW/JlspKPuYyWuRyzO8icMw==

 

<link rel="stylesheet" href="/assets/css/nicepage.min.css?1743087157" crossorigin="anonymous" integrity="sha256-tpBCDbL3AQ1Wy4DjHfL/rhdBOVxdrRXWeSM9i39CdbQ=" />



link
stylesheet
/assets/css/print.css?1743087157
200

1
ok
text/css
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 1413/4695 Bytes






ETag: "1257-626b7ecc9a22e-gzip"

local SRI possible, possible hash-values:

 

sha256-11Ow8OnhbVYGq23QNXLKsgCfdUZgBbdYxt2KM5cCmt0=
sha384-BZ60EZltK1AzSA6teW5M4JAtK268Sqzk37fUpmXoISql5lLphXLqHWBz+RbdOrbv
sha512-VfRi4ae724EOaZWOXxGoX5h+b3GSt26XDLKZ26+CM0sAR1zZHzyXBpMVAalkv/hrLu23ZgW2DOn9bRHSRrohEw==

 

<link rel="stylesheet" href="/assets/css/print.css?1743087157" crossorigin="anonymous" integrity="sha256-11Ow8OnhbVYGq23QNXLKsgCfdUZgBbdYxt2KM5cCmt0=" />



link
stylesheet
/assets/css/vetuni.css?1743087157
200

1
ok
text/css
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 1975/14585 Bytes






ETag: "38f9-62f2fbda9c234-gzip"

local SRI possible, possible hash-values:

 

sha256-fEcaplNYFKj11tN1Y17EKFGLx3gNdXOWcJcx2kxOjK4=
sha384-4CW2UNQZlT7IoLAR9RiSw50WzbMbschsl2u60HrUclmIkjWAQSJvFs+/whB8Vc4A
sha512-Pj59x+3ueuPb6m08lw06QU/3adogIwOM8Z3UcPJ72e/uS/oWJX6EQBE2ODpXNNQp6TbVXL+K10PAnKuddLZXcA==

 

<link rel="stylesheet" href="/assets/css/vetuni.css?1743087157" crossorigin="anonymous" integrity="sha256-fEcaplNYFKj11tN1Y17EKFGLx3gNdXOWcJcx2kxOjK4=" />



meta
charset
 utf-8


1
ok















meta
og:country-name
Czech Republic


1
ok















meta
og:description



1
ok















meta
og:image
https://www.vetuni.cz/assets/images/vfu_cz.webp
200

1
ok
image/webp
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 with long duration found.
No Compression - 13330 Bytes






ETag: "3412-6238e88cee987"



meta
og:image:alt
Str&aacute;nka nebyla nalezena. &ndash; VETUNI


1
ok















meta
og:latitude
49.21794


1
ok















meta
og:locality
Brno


1
ok















meta
og:longitude
16.59783


1
ok















meta
og:postal-code
612 42


1
ok















meta
og:site_name
https://www.vetuni.cz


1
ok















meta
og:street-address
Palack&eacute;ho tř. 1946/1


1
ok















meta
og:title
Str&aacute;nka nebyla nalezena. &ndash; VETUNI


1
ok















meta
og:type
article


1
ok















meta
og:url
https://www.vetuni.cz/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
200

1
ok
text/html; charset=UTF-8
X-Content-Type-Options nosniff found




9601 Bytes








meta
description



1
ok















meta
googlebot
index, follow, snippet, archive


1
ok















meta
keywords
s, infinite, ups, vypad&aacute;, že, něco, pokazilozkuste, použ&iacute;t, vyhled&aacute;vačj&iacute;t, domů


1
ok















meta
robots
index, follow


1
ok















meta
theme-color
#478ac9


1
ok















meta
twitter:card
summary


1
ok















meta
twitter:description



1
ok















meta
twitter:site
@VETUNI_Brno


1
ok















meta
twitter:title
Str&aacute;nka nebyla nalezena. &ndash; VETUNI


1
ok















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


1
ok















script
src
/assets/js/app.js?1743087157
200

1
ok
defer attribute found text/javascript
X-Content-Type-Options nosniff found




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?1743087157" 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




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?1743087157
200

1
ok
async attribute found text/javascript
X-Content-Type-Options nosniff found




Cache-Control: public, max-age=31536000 - with long duration found.
Compression (gzip): 4206/19616 Bytes






ETag: "4ca0-62caee3c2de55-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?1743087157" 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.


Cache-Control: max-age=900, private - max-age too short.
Compression (br): 123497/370302 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/

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

Summary

Good: No non-document-errors
2 errors
0 warnings

TypeMessagenum found
1.errorElement style not allowed as child of element h6 in this context. (Suppressing further errors from this subtree.)1
2.errorElement style not allowed as child of element div in this context. (Suppressing further errors from this subtree.)1

Details


TypeMessage + Sample
1errorElement style not allowed as child of element h6 in this context. (Suppressing further errors from this subtree.)

From line 2, column 5211 to line 2, column 5253

t-1 notp"><style nonce="Z-ZXJgttSHgMle44SPWNDwAAAAg">.flag{
2errorElement style not allowed as child of element div in this context. (Suppressing further errors from this subtree.)

From line 2, column 15652 to line 2, column 15694

ontainer"><style nonce="Z-ZXJgttSHgMle44SPWNDwAAAAg"> .btn{

 

13. Nameserver - IP-Adresses

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

 

QNr.DomainTypeNS used
1
cz
NS
m.root-servers.net (2001:dc3::35)

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
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
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
a.root-servers.net (2001:503:ba3e::2:30)

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

DomainnameflagNameValue∑ Queries∑ Timeout
www.vfu.cz
0

no CAA entry found
1
0
vfu.cz
0

no CAA entry found
1
0
cz
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
vfu.cz
google-site-verification=miyd3SOaQ9HBeQkKsnfwKvLmzqtV4-OlOcIrNghIsLs
ok
1
0
vfu.cz
v=spf1 a:mail.vfu.cz include:spf.protection.outlook.com ip4:195.113.198.0/24 include:web.spf.e-fractal.cz ip6:2603:10a6:150:1::20 ~all
ok
1
0
vfu.cz
xziceQbIhF6CnfeURUu91VytNd4amJrIQrrBdiliUD+WunyjZQ53q/MyI/1uJonDMPRoWoPmHZgfXFpG7moCog==
ok
1
0
www.vfu.cz

ok
1
0
_acme-challenge.vfu.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.www.vfu.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.vfu.cz.vfu.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.www.vfu.cz.vfu.cz

Name Error - The domain name does not exist
1
0
_acme-challenge.www.vfu.cz.www.vfu.cz

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

TypeDomainPrefValueDNS-errornum AnswersStatusDescription
MX

vfu.cz
1
mx.cesnet.cz
02ok

A


195.113.161.46
01ok

AAAA


2001:718:1:a100::161:46
01ok

CNAME


00ok
MX

vfu.cz
1
mx2.cesnet.cz
02ok

A


195.113.144.198
01ok

AAAA


2001:718:1:1::144:198
01ok

CNAME


00ok
_mta-sts
TXT
_mta-sts.vfu.cz

v=STSv1; id=20240208131300
ok

A
mta-sts.vfu.cz

195.113.198.43
ok

mta-sts.txt file


Content of https://mta-sts.vfu.cz/.well-known/mta-sts.txt - see RFC 8461
 text/plain; charset=utf-8ok




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.vfu.cz

v=TLSRPTv1; rua=mailto:postmaster@vfu.cz
ok
SPF
TXT
vfu.cz

v=spf1 a:mail.vfu.cz include:spf.protection.outlook.com ip4:195.113.198.0/24 include:web.spf.e-fractal.cz ip6:2603:10a6:150:1::20 ~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.vfu.cz

v=DMARC1; p=quarantine;sp=none; ruf=mailto:postmaster@vfu.cz; rua=mailto:postmaster@vfu.cz; aspf=r; adkim=r;
ok

				 
			

				 
			
17. Cipher Suites
Summary
DomainIPPortnum CipherstimeStd.ProtocolForward Secrecy
vfu.cz
195.113.198.43
443
5 Ciphers36.21 sec
0 without, 5 FS
100.00 %
www.vfu.cz
195.113.198.43
443
5 Ciphers37.85 sec
0 without, 5 FS
100.00 %
Complete

2
10 Ciphers
5.00 Ciphers/Check		74.06 sec37.03 sec/Check
0 without, 10 FS
100.00 %

Details
DomainIPPortCipher (OpenSsl / IANA)
vfu.cz
195.113.198.43
443
ECDHE-RSA-CHACHA20-POLY1305
 (Secure)
TLSv1.2
0xCC,0xA8
 FS
5 Ciphers, 

36.21 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.vfu.cz
195.113.198.43
443
ECDHE-RSA-CHACHA20-POLY1305
 (Secure)
TLSv1.2
0xCC,0xA8
 FS
5 Ciphers, 

37.85 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.



				 
			

				 
			

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Last Result: https://check-your-website.server-daten.de/?q=vfu.cz - 2025-03-28 08:59:35

				 
			
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USt-IdNr.: DE221734518

				 
			


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