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Bulk WHOIS checker·throttled · CSV export

A registrar audit, in one queue.

Drop a list of domains, set a polite request interval, hit start. Watch every WHOIS record land in a sortable table — then export the rows you care about.

Bulk WHOIS

Queue. Throttle. Lookup.

Paste a list of domains, set a polite interval between requests, and we'll walk the registry one entry at a time without tripping rate limits.

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google.comgithub.comopenai.comlinear.appvercel.comcloudflare.comstripe.comfigma.comnotion.soanthropic.comzoom.usslack.com
ms between requests
ms

Higher intervals = friendlier to WHOIS servers, lower chance of IP blocking. 800ms is a safe default.

Total
0
0 queued
Requests
0
0 in flight
Success
0
—
Failed
0
—
Progress
0%
idle
0 rows
No results yet
Paste domains above and press Start to begin the sweep.
Success — WHOIS record returned Checking — request in flight Failed — timeout, rate-limit, or unsupported TLD Queued — waiting its turn
Why bulk WHOIS?

An audit at registrar scale.

Checking domains one at a time doesn't scale. The bulk WHOIS queue is built for portfolio owners, brand-protection teams, and anyone auditing a list.

Throttled, ban-safe queue

Requests are spaced at an interval you set, so a 100-domain sweep stays under registry rate limits and finishes without a single IP ban.

Sortable, filterable table

Every record lands in one grid — age, creation/expiry dates, registrar, nameservers and status — sortable and scannable side by side.

CSV export

Export only the rows you ticked, or dump the whole table including failures — ready for a spreadsheet, a report, or your own tooling.

Stop & resume anytime

Halt the queue mid-sweep and pick up exactly where you left off. Completed rows are kept and the cursor moves forward — no repeated lookups.

Stop second-guessing.

Find your domain in the next 30 seconds.

Free forever. No login required. 1,147+ TLDs in one query — plus AI suggestions and the premium marketplace.

Compare All TLD Prices
1,147
TLDs
200ms
Avg Lookup
100
Suggestions
FAQ

Bulk WHOIS, demystified.

WHOIS servers are run by individual registries and many will rate-limit or temporarily IP-ban a host that bursts hundreds of queries at once. A spaced-out queue (e.g. one every 800ms) stays under almost every public limit and finishes a 100-domain sweep in under two minutes.
The gap between the end of one request and the start of the next. We schedule the next lookup `interval` ms after the previous one resolves, so the network latency of each request is on top of the interval — your effective rate is always lower than 1000 / interval per second.
Yes. Click Stop and the queue halts after the in-flight request finishes. Press Start again and we pick up at the first unfinished row — completed rows are kept, the cursor moves forward.
Domain, age, creation/expiry/updated dates, registrar name, all nameservers (pipe-separated), final status, and any error reason. Export-selected exports only the rows you ticked; Export-all dumps the whole table including failures.
WHOIS servers fail for ordinary reasons: timeouts, rate-limit responses, or TLDs whose registry does not expose WHOIS at all (a few new gTLDs). Failed rows show the reason inline; you can re-run by clicking Reset and starting again.