~/tools / domain-age

When Was a Domain Registered? Domain Age Checker

Find out when a domain was first registered and how old it is today. Cross-references the WHOIS creation date with the earliest Certificate Transparency log entry - the first TLS certificate ever issued for that domain. Useful for trust signals, scam detection, counterparty due diligence, and SEO competitor research.

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── how to find when a domain was first registered ─────

How to find when a domain was first registered

  1. Run a WHOIS / RDAP lookup. Enter the domain in the form above. The tool queries the registrar's WHOIS or RDAP service for the official creation date - the day the domain was registered with a registrar.
  2. Check Certificate Transparency logs. In parallel, the tool searches public CT logs (crt.sh) for the earliest TLS certificate ever issued for that domain. CT first-seen is when the domain first appeared on the public web.
  3. Take the earlier of the two dates. Whichever is earlier (WHOIS creation or CT first-seen) is the practical first-appearance date. WHOIS is authoritative when published; CT is the lower bound when it is not.
  4. Handle EU domains carefully. Most EU TLDs (.de, .fr, .nl, .eu) redact the WHOIS creation date due to GDPR. In those cases the CT first-seen date is the only reliable signal you can pull without a paid feed.
  5. Cross-check with archive.org. For older domains, the Wayback Machine first-snapshot date is a third independent signal - useful when WHOIS is missing and CT logs only go back to 2013.

// No login or API key required. Both WHOIS and CT log queries run in parallel on every check.

── why check domain age ─────
  • Scam & phishing detection - domains under 30-90 days old carry a sharply elevated fraud rate. Bank fraud teams and SOC analysts use age as a primary trust signal.
  • Counterparty due diligence - before clicking a link or wiring money, "this domain is 12 days old" tells you a lot.
  • M&A and brand audits - when researching a competitor, partner, or acquisition target, registration date is a quick proof-of-existence check.
  • Email / DNS forensics - when chasing a suspicious sender, the registration date often clusters with other red flags (cheap registrar, privacy proxy, fresh cert).
  • SEO competitor research - domain age correlates with backlink history and topical authority. Tells you whether a competitor's #1 ranking is a new entrant or a 10-year incumbent.
── faq ─────
>How old is this domain?
Enter the domain above and we'll show its age in years and days. The age is calculated from the earlier of two dates: the WHOIS creation date (when the domain was first registered with a registrar) and the Certificate Transparency log first-seen date (when the first TLS certificate was issued). Whichever is earlier is the practical first-appearance date for that domain.
>How can I check when a domain was registered?
Type the domain into the form above. We query the registrar's WHOIS / RDAP service for the official creation date and, in parallel, search Certificate Transparency logs (crt.sh) for the earliest TLS certificate ever issued. The result shows both dates plus the computed age. No login or API key required.
>How do I find out when a domain was registered?
Enter the domain above. We cross-reference WHOIS registration data with Certificate Transparency (CT) logs. WHOIS gives the official registration date from the registrar; CT logs show the earliest TLS certificate ever issued for the domain. The earlier of the two is the practical first-appearance date.
>Why is the WHOIS date redacted on EU domains?
GDPR forced most EU registrars to hide WHOIS personal data, and many also redact the registration date itself. For .de, .fr, .nl and other EU TLDs, WHOIS will often return no creation date. In that case the CT log first-seen date is the only useful signal - it shows when the domain first obtained a TLS certificate.
>What's the difference between the WHOIS date and CT first-seen?
WHOIS date is when the domain was registered with the registrar. CT first-seen is when the domain first appeared in a public Certificate Transparency log - typically when its first TLS certificate was issued. CT can be days, months, or years after WHOIS (a domain can sit registered but unused before getting a cert). For EU domains with redacted WHOIS, CT is the practical lower bound on age.
>Why does domain age matter for trust signals or scam detection?
Freshly-registered domains under 30-90 days old carry a much higher rate of phishing, scams, malware command-and-control, and fly-by-night fraud. Banks, email security tools, and SOC analysts treat domain age as one of the strongest single trust signals. A 'new domain' warning in a phishing-detection pipeline is almost always based on this exact check.
>What if WHOIS shows no creation date at all?
Either the TLD doesn't expose creation dates (some new gTLDs), the registrar simply doesn't publish them, or GDPR redaction is in effect. In all cases, fall back to the CT log first-seen date - it's a hard lower bound for when the domain became active on the public web.