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Lifeline · firmy.cz over time
Checked in the last 30 daysOlder, dated recordFrom registration records
On AboutUs since 2007 · 2 registrar changes since Mar 8, 2009 · 1 registrant change since 2009 · last checked Jul 19, 2026.
Registration
No registration date on file yet. AboutUs reads it from RDAP when the site is checked.
AboutUs record
AboutUs wiki pageAboutUs wiki pageJun 8, 2007 – Nov 9, 2013An AboutUs wiki page described firmy.cz from Jun 8, 2007 to Nov 9, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023Said about itself in 2007Jul 1, 2007“348 102 firem a institucí tříděných podle regionu TOP A B C D E F G H CH I J K L M N O P R S T U V Z”Source: AboutUs wiki archive, 2007
Registrar
REG-IGNUMREG-IGNUMMar 8, 2009 – Nov 2, 2021Registrar REG-IGNUM in the WHOIS and RDAP records held for firmy.cz, from Mar 8, 2009 to Nov 2, 2021.Source: WHOIS / RDAP archive (who.is)REG-WEBGLOBEDec 11, 2021 – Aug 26, 2022Registrar REG-WEBGLOBE in the WHOIS and RDAP records held for firmy.cz, from Dec 11, 2021 to Aug 26, 2022.
Registrant
Registrant recordsMar 8, 2009 – Jun 7, 2026Registration records for firmy.cz are held from Mar 8, 2009 to Jun 7, 2026 (81 records). 1 change of registrant name or organization is marked. Privacy-service and redaction changes, renames of the same organization and new contacts at it are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Zone file
Nameservers: seznam.czNameservers: seznam.czMar 8, 2009 – Jun 7, 2026Registration records listed seznam.cz nameservers (ms.seznam.cz, ns.seznam.cz) for firmy.cz from Mar 8, 2009 to Jun 7, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Let's EncryptMar 24, 2026 – Nov 15, 2026Let's Encrypt issued 38 certificates for firmy.cz from Mar 24, 2026, the latest valid until Feb 10, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
2010201520202025Apr ’26← last 12 months, drawn wider
Every dated fact on this lifeline (10)
Jun 8, 2007 – Nov 9, 2013AboutUs record: An AboutUs wiki page described firmy.cz from Jun 8, 2007 to Nov 9, 2013 (2 edits).Source: AboutUs wiki archive, 2006–2023
Jul 1, 2007AboutUs record: “348 102 firem a institucí tříděných podle regionu TOP A B C D E F G H CH I J K L M N O P R S T U V Z”Source: AboutUs wiki archive, 2007
Mar 8, 2009 – Nov 2, 2021Registrar: Registrar REG-IGNUM in the WHOIS and RDAP records held for firmy.cz, from Mar 8, 2009 to Nov 2, 2021.Source: WHOIS / RDAP archive (who.is)
Mar 8, 2009 – Jun 7, 2026Registrant: Registration records for firmy.cz are held from Mar 8, 2009 to Jun 7, 2026 (81 records). 1 change of registrant name or organization is marked. Privacy-service and redaction changes, renames of the same organization and new contacts at it are not counted.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Mar 8, 2009 – Jun 7, 2026Zone file: Registration records listed seznam.cz nameservers (ms.seznam.cz, ns.seznam.cz) for firmy.cz from Mar 8, 2009 to Jun 7, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Dec 11, 2021 – Aug 26, 2022
Current AboutUs record
Jul 18, 2026 – Jul 19, 2026 (latest)
Authority and Safety last refreshed Jul 19, 2026.
Source: AboutUs checks
Source: WHOIS / RDAP archive (who.is)
REG-SEZNAMREG-SEZNAMOct 15, 2022 – Jun 7, 2026 (latest)Registrar REG-SEZNAM in the WHOIS and RDAP records held for firmy.cz, from Oct 15, 2022 to Jun 7, 2026.Source: WHOIS / RDAP archive (who.is)
Registrant change
Oct 15, 2022
The registrant name or organization in the registration record changed; first recorded Oct 15, 2022. That can be a rename, a new contact or a sale; the record alone does not say which.
Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
1 registrant change, 2009–2026
Registrar: Registrar REG-WEBGLOBE in the WHOIS and RDAP records held for firmy.cz, from Dec 11, 2021 to Aug 26, 2022.Source: WHOIS / RDAP archive (who.is)
Oct 15, 2022 – Jun 7, 2026Registrar: Registrar REG-SEZNAM in the WHOIS and RDAP records held for firmy.cz, from Oct 15, 2022 to Jun 7, 2026.Source: WHOIS / RDAP archive (who.is)
Oct 15, 2022Registrant: The registrant name or organization in the registration record changed; first recorded Oct 15, 2022. That can be a rename, a new contact or a sale; the record alone does not say which.Source: WHOIS / RDAP archive (who.is); counted by registrant name and organization only
Mar 24, 2026 – Nov 15, 2026Certificate: Let's Encrypt issued 38 certificates for firmy.cz from Mar 24, 2026, the latest valid until Feb 10, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Jul 18, 2026 – Jul 19, 2026AboutUs record: Authority and Safety last refreshed Jul 19, 2026.Source: AboutUs checks
Registered 1997 · site is live · HTTPS valid
firmy.cz has an AboutUs profile for public website intelligence, ownership context, trust signals, monitoring, and owner verification.
AboutUs has not vetted this site. Everything below is what we could measure automatically. Anything you do on the site — paying, sharing personal details, downloading — is between you and the site, not AboutUs.
Current facts
Latest available measurements; dated entries retain their dates. These are measurements, not an endorsement of the site.
latest result
Domain registered Nov 7, 1997 — 29 years old.
latest result
Registrar on record: Seznam.cz, a.s. — unchanged since AboutUs began tracking (Nov 15, 2026).
Authority: not enough signals yetNot enough signals yet
Why we're not scoring this yet
We withhold an authority number until independent evidence (global rank, link-graph presence) has accrued. The facts we do have about this site are shown below — we'd rather say “not enough signals yet” than invent a low score.
What firmy.cz said about itself, 2007
Quoted from the site's AboutUs wiki page in each year it changed (1 version). These are the page's own words at the time, not AboutUs's assessment. New words · dropped words
2007
348 102 firem a institucí tříděných podle regionu TOP A B C D E F G H CH I J K L M N O P R S T U V Z
Site history
Dated record — historical facts always carry their date.
1997
Domain registered (Nov 7, 1997).
2007
First tracked by AboutUs (Jun 8, 2007); profile edited 2 times through 2013.