cesnet.cz is not available!
- DNSSEC verified
- Website up
- Not on blocklists
- Registrar
- ACTIVE 24, s.r.o.
- Registered on
- Expires on
- Last updated
- Name servers
- decsys.vsb.cz
- nsa.ces.net
- nsa.cesnet.cz
- nsa.ten.cz
- Status
- active
- DNSSEC
- Signed and verified
Contacts
Holder
SB:CESNET-ZSPO
Administrative
DNSMASTERS-CESNET
Administrative
HELMUT_SVERENYAK
Administrative
PV2-RIPE
Registrar
ACTIVE 24, s.r.o. REG-ACTIVE24
Sokolovská 394/17
Praha 8
186 00
CZ+420.234262000
Website
- Answer
- 200 OKin 174 ms
- Ends at
- https://www.cesnet.cz/
- Redirects
- https://cesnet.cz/ (301)
- Title
- Making sure you're not a bot!
- Server
- Apache
- Protocols
- HTTP/2
- Certificate
- Hellenic Academic and Research Institutions CA (GEANT TLS RSA 1) for www.cesnet.cz, nren.cz, cesnet.cz, www.nren.cz and www.ten.cz, valid until
- www
- Answers itself (200 OK)
DNS records
cesnet.cz
- MX
- 10ag2.cesnet.cz
- 20ag1.cesnet.cz
- 30ag3.cesnet.cz
- TTL 1 hour
- TXT
- google-site-verification=_67tfbFvuyNG5y_dNEpIUG7l0cR2p3g0J1znRhtcVhE
- v=spf1 exists:%{ir}.spf.cesnet.cz include:servers.mcsv.net ~all
- TTL 1 hour
- SOA
- Primary server
- nsa.cesnet.cz
- Contact
- [email protected]
- Serial
- 2020014795
- Refresh
- 8 hours
- Retry
- 2 hours
- Expire
- 21 days
- Negative TTL
- 15 min
- TTL 1 hour
- CAA
- iodefmailto:[email protected]
- issueharica.gr
- issueletsencrypt.org
- issuepostsignum.cz
- issuemailharica.gr
- issuewildharica.gr
- TTL 1 hour
www.cesnet.cz
_dmarc.cesnet.cz
As cesnet.a24vps.com answers them
Reputation
Domain blocklists
- Spamhaus DBL Not listed
- SURBL Not listed
- URIBL Not listed
Rankings
39,867
Tranco rank
down from 39,769 on 2026-09-28
7.02Open PageRank, out of 10
66,976Open PageRank position
461Referring domains
From Tranco and Open PageRank
DNSSEC
Every link from the root to cesnet.cz verifies.
. Verified
- Found 3 DNSKEY records for .
- DS=20326/SHA-256 verifies DNSKEY=20326/SEP
- DS=38696/SHA-256 verifies DNSKEY=38696/SEP
- Found 1 RRSIGs over DNSKEY RRset
- RRSIG=38696 and DNSKEY=38696/SEP verifies the DNSKEY RRset
cz Verified
- Found 1 DS records for cz in the . zone
- DS=20237/SHA-256 has algorithm ECDSAP256SHA256
- Found 1 RRSIGs over DS RRset
- RRSIG=8763 and DNSKEY=8763 verifies the DS RRset
- Found 2 DNSKEY records for cz
- DS=20237/SHA-256 verifies DNSKEY=20237/SEP
- Found 1 RRSIGs over DNSKEY RRset
- RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset
cesnet.cz Verified
- Found 1 DS records for cesnet.cz in the cz zone
- DS=59372/SHA-256 has algorithm ECDSAP256SHA256
- Found 1 RRSIGs over DS RRset
- RRSIG=20081 and DNSKEY=20081 verifies the DS RRset
- Found 2 DNSKEY records for cesnet.cz
- DS=59372/SHA-256 verifies DNSKEY=59372/SEP
- Found 1 RRSIGs over DNSKEY RRset
- RRSIG=59372 and DNSKEY=59372/SEP verifies the DNSKEY RRset
- Found 1 RRSIGs over SOA RRset
- RRSIG=51504 and DNSKEY=51504 verifies the SOA RRset