This API allows users to look up detailed information about domains, including age, registrar, creation and expiry dates, and nameservers. It returns clean JSON data suitable for various applications such as threat intelligence and due diligence, with no authentication required for the free tier.
What can you use it for?
Build quick tools to spot phishing (fresh domains), a prospecting list filter, or an expiry-monitor for your portfolio. You get simple JSON responses with registrar, creation and expiry dates, nameservers, and privacy flags so you can integrate checks in minutes. Start anonymously on the free tier and upgrade only when you need more daily lookups. Try it for small monitoring, dashboards, or automated domain hygiene checks.
API Stats
Health ▼
90
A score out of 100 from our daily tests over the last 30 days, based on error rate, reliability and speed.
Reliability ▼
100%
Share of our daily test calls in the last 30 days that succeeded, averaged over all endpoints of this API.
Error rate ▼
0%
Share of our daily test calls in the last 30 days that failed, averaged over all endpoints of this API.
No — the free anonymous tier works without authentication, but paid Pro/Business plans use an X-API-Key header for higher quotas.
The WHOIS page mentions a small free daily allowance (example: 10 lookups/day), while the site-wide pricing shows free tiers typically allow 100–500 requests/day per API. Check your API dashboard for your exact quota.
Returned JSON includes domain, found, registrar, creation/expiry dates, domain age days, nameservers, status flags, privacy_shield and contact emails where public.
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