IPv6
Not checked yet. aaaa.bot has no recent IPv6 result for blesk.cz. Run the check on aaaa.bot →
Lineage
Our records: Jan 8, 2009 → Jun 26, 2026Oldest registry snapshot we hold: 2025 · 1 renewal on record. These dates are when our records begin, not when the domain was registered.
DNS provider
- ringier.cz + sbone.czJan 2009 – Jan 2012
- ignum.cz + ringier.czFeb 2012 – Jan 2015
- cncenter.cz + ignum.czJan 2015 – May 2022
- webglobe.com + webglobe.czJul 2022 – Nov 2023
- CloudflareDec 2023 – Jun 2026
What changed
- Renewed +1 year between Sep 13, 2025 and Nov 6, 2025Expiry moved from 2025-10-27 to 2026-10-27.
- DNS moved to Cloudflare between Nov 2, 2023 and Dec 1, 2023ns1.webglobe.cz, ns2.webglobe.cz, ns3.webglobe.com → josephine.ns.cloudflare.com, rick.ns.cloudflare.com. Old set last seen in WHOIS on 2023-11-02; new set first seen in WHOIS on 2023-12-01.
- DNS moved to webglobe.com + webglobe.cz between May 19, 2022 and Jul 2, 2022ns.cncenter.cz, ns2.ignum.cz → ns1.webglobe.cz, ns2.webglobe.cz, ns3.webglobe.com. Old set last seen in WHOIS on 2022-05-19; new set first seen in WHOIS on 2022-07-02.
- DNS moved to cncenter.cz + ignum.cz between Jan 1, 2015 and Jan 9, 2015ns.ringier.cz, ns2.ignum.cz → ns.cncenter.cz, ns2.ignum.cz. Old set last seen in WHOIS on 2015-01-01; new set first seen in WHOIS on 2015-01-09.
- DNS moved to ignum.cz + ringier.cz between Jan 3, 2012 and Feb 16, 2012ns.ringier.cz, ns.sbone.cz → ns.ringier.cz, ns2.ignum.cz. Old set last seen in WHOIS on 2012-01-03; new set first seen in WHOIS on 2012-02-16.
Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.
Registrar and renewals: 11 WHOIS/RDAP snapshots, 2025-07-02 to 2026-04-22 (ledger built 2026-09-27). Every renewal
DNS provider, WHOIS snapshots: 141 WHOIS/RDAP snapshots that listed nameservers, 2009-01-08 to 2026-06-26 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.
Want to know when blesk.cz changes?
Monitor it free — 5 monitors, uptime checks every 5 minutes, email alerts when something breaks. No card required.
Explore related
Registered in 1997 — the same year as google.com, facebook.com and mail.ru.