CF1762919740399-tsm20251109205412

DNSWHOIS.INFO - cesnet-certs.cz

Search for IP or hostnames:

cesnet-certs.cz checked at 2025-11-12T03:55:40.384Z 471ms 100/100/100 100% R:23 allDone:true timedOut:false

cesnet-certs.cz

MXag1.cesnet.cz
A2001:718:ff05:208::94 πŸ‡¨πŸ‡Ώ CESNET2
PTRag1.cesnet.cz
A78.128.247.94πŸ‡¨πŸ‡Ώ CESNET2
PTRag1.cesnet.cz
MXag2.cesnet.cz
A2001:718:ff05:10b::245 πŸ‡¨πŸ‡Ώ CESNET2
PTRag2.cesnet.cz
A78.128.248.245πŸ‡¨πŸ‡Ώ CESNET2
PTRag2.cesnet.cz
NSnsa.cesnet.cz
A2001:718:1:101::144:228 πŸ‡¨πŸ‡Ώ CESNET2
PTRnsa.cesnet.cz
A195.113.144.228πŸ‡¨πŸ‡Ώ CESNET2
PTRnsa.cesnet.cz
NSnsa.ten.cz
A2a02:4a8:ac24:115::101:67 πŸ‡¨πŸ‡Ώ ACTIVE24-AS
PTRnsa.ten.cz
A81.95.101.67πŸ‡¨πŸ‡Ώ ACTIVE24-AS
PTRnsa.ten.cz
NSdecsys.vsb.cz
A2001:718:1001:149::9 πŸ‡¨πŸ‡Ώ CESNET2
PTRdecsys.vsb.cz
A158.196.149.9πŸ‡¨πŸ‡Ώ CESNET2
PTRdecsys.vsb.cz
NSnsa.ces.net
A2001:718:1:1::144:205 πŸ‡¨πŸ‡Ώ CESNET2
PTRnsa.ces.net
A195.113.144.205πŸ‡¨πŸ‡Ώ CESNET2
PTRnsa.ces.net

cz

NSa.ns.nic.cz
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz

Starts with same word

Starts similarily

AI analysis

cesnet-certs.cz is delegated to four name servers: nsa.cesnet.cz, nsa.ten.cz, decsys.vsb.cz and nsa.ces.net.

cesnet-certs.cz shares name servers with other domains at least partially, for instance phil.muni.cz, czech-radio.cz, netopeer.org, 221.113.195.in-addr.arpa and ceitec.muni.cz.

these name servers are commonly used with ns1.slu.cz, ns2.slu.cz, ns1.cro.cz, ns2.cro.cz, ns-01.fel.cvut.cz, ns-02.fel.cvut.cz and ns.muni.cz.

Host names with two IP numbers:

nsa.cesnet.cz resolves to 2001:718:1:101::144:228 and 195.113.144.228.

nsa.ten.cz resolves to 2a02:4a8:ac24:115::101:67 and 81.95.101.67.

decsys.vsb.cz resolves to 2001:718:1001:149::9 and 158.196.149.9.

nsa.ces.net resolves to 2001:718:1:1::144:205 and 195.113.144.205.

cesnet-certs.cz is handled by two mail servers: ag1.cesnet.cz and ag2.cesnet.cz.

cesnet-certs.cz shares the same mail server setup as other domains, including dec59.ruk.cuni.cz, gacr.cz, nudz.cz, visitors.cuni.cz and metacentrum.cz.

cesnet-certs.cz shares some mail servers with other domains, including pardubice.eu, vfu.cz, nmnm.cloud, zzsmsk.cz and zachranka-msk.cz.

these mail servers are commonly used with mx2.cesnet.cz, mx.cesnet.cz, mta2.zzsmsk.cz and mta.zzsmsk.cz.

Host names with two IP numbers:

The host ag1.cesnet.cz points to 2001:718:ff05:208::94 and 78.128.247.94.

The host ag2.cesnet.cz points to 2001:718:ff05:10b::245 and 78.128.248.245.

Perform reverse DNS lookup as well as normal forward DNS. Check Autonomous System Numbers (ASNs) and BGP connections between Internet Service Providers.
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