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3 of 4 safety checks passed (Nov 15, 2026).
Lifeline · supportbox.cz over time
Checked in the last 30 daysOlder, dated recordFrom registration records
One registrar since May 3, 2017 · no registrant change on record since 2017.
Registration
No registration date on file yet. AboutUs reads it from RDAP when the site is checked.
AboutUs record
AboutUs has no earlier page for supportbox.cz; this record starts with the checks on this page.
Registrar
REG-WEB4UREG-WEB4UMay 3, 2017 – May 16, 2026 (latest)Registrar REG-WEB4U in the WHOIS and RDAP records held for supportbox.cz, from May 3, 2017 to May 16, 2026.Source: WHOIS / RDAP archive (who.is)
Registrant
Registrant recordsMay 3, 2017 – May 17, 2026Registration records for supportbox.cz are held from May 3, 2017 to May 17, 2026 (19 records). None shows a change of registrant. 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
No registrant changes recorded, 2017–2026
Zone file
No nameserver records held, May 2017 – Feb 2020No nameserver records held, May 2017 – Feb 2020Nameservers: web4u.czMay 3, 2017Registration records listed web4u.cz nameservers (ns.web4u.cz, ns2.web4u.cz) for supportbox.cz from May 3, 2017 to May 3, 2017.Source: From registration records (WHOIS / RDAP archive, who.is)
Certificate
Let's EncryptMar 22, 2026 – Nov 15, 2026Let's Encrypt issued 129 certificates for supportbox.cz from Mar 22, 2026, the latest valid until Feb 11, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)Sectigo LimitedApr 13, 2026 – Jul 12, 2026
2018202020222024Jan ’26Oct ’26← last 12 months, drawn wider
Every dated fact on this lifeline (8)
May 3, 2017 – May 16, 2026Registrar: Registrar REG-WEB4U in the WHOIS and RDAP records held for supportbox.cz, from May 3, 2017 to May 16, 2026.Source: WHOIS / RDAP archive (who.is)
May 3, 2017 – May 17, 2026Registrant: Registration records for supportbox.cz are held from May 3, 2017 to May 17, 2026 (19 records). None shows a change of registrant. 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
May 3, 2017Zone file: Registration records listed web4u.cz nameservers (ns.web4u.cz, ns2.web4u.cz) for supportbox.cz from May 3, 2017 to May 3, 2017.Source: From registration records (WHOIS / RDAP archive, who.is)
Feb 7, 2020 – May 17, 2026Zone file: Registration records listed Cloudflare nameservers (darwin.ns.cloudflare.com, marge.ns.cloudflare.com) for supportbox.cz from Feb 7, 2020 to May 17, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
Feb 7, 2020Zone file: supportbox.cz's nameservers moved from web4u.cz to Cloudflare at some point between May 3, 2017 and Feb 7, 2020. Last seen at web4u.cz: May 3, 2017 (registration record). First seen at Cloudflare: Feb 7, 2020 (registration record). AboutUs holds no nameserver records for the about 3 years in between, so the date of the move is not known more closely.
Nameservers: Cloudflare
Nameservers: CloudflareFeb 7, 2020 – May 17, 2026Registration records listed Cloudflare nameservers (darwin.ns.cloudflare.com, marge.ns.cloudflare.com) for supportbox.cz from Feb 7, 2020 to May 17, 2026.Source: From registration records (WHOIS / RDAP archive, who.is)
DNS moved to CloudflareFeb 7, 2020supportbox.cz's nameservers moved from web4u.cz to Cloudflare at some point between May 3, 2017 and Feb 7, 2020. Last seen at web4u.cz: May 3, 2017 (registration record). First seen at Cloudflare: Feb 7, 2020 (registration record). AboutUs holds no nameserver records for the about 3 years in between, so the date of the move is not known more closely.Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Sectigo Limited issued 1 certificate for supportbox.cz from Apr 13, 2026, the latest valid until Jul 12, 2026.
Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Google Trust ServicesMay 22, 2026 – Nov 15, 2026Google Trust Services issued 3 certificates for supportbox.cz from May 22, 2026, the latest valid until Dec 17, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Source: Derived from the nameserver records on this lifeline (registration record → registration record)
Mar 22, 2026 – Nov 15, 2026Certificate: Let's Encrypt issued 129 certificates for supportbox.cz from Mar 22, 2026, the latest valid until Feb 11, 2027.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Apr 13, 2026 – Jul 12, 2026Certificate: Sectigo Limited issued 1 certificate for supportbox.cz from Apr 13, 2026, the latest valid until Jul 12, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
May 22, 2026 – Nov 15, 2026Certificate: Google Trust Services issued 3 certificates for supportbox.cz from May 22, 2026, the latest valid until Dec 17, 2026.Source: Certificate Transparency logs (AboutUs's own certificate-log reader)
Registered 2012 · site is live · HTTPS valid
supportbox.cz has an AboutUs profile for public website intelligence, ownership context, trust signals, monitoring, and owner verification.
Add the HSTS, Content-Security-Policy, and X-Frame-Options response headers.
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 Oct 2, 2012 — 14 years old.
latest result
Registrar on record: Web4U s.r.o. — 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.
Site history
Dated record — historical facts always carry their date.