Check
hundreds
instantly.

Paste a list of domain names, select TLDs, get a complete availability report in seconds. No waiting. No friction. No account required to start.

Start Checking Free View Demo →
  • Free
    No account needed
  • 1 000+
    TLDs via IANA
  • 100%
    Client-side
  • 0ms
    Setup time
[ How it works ]
  1. 01Paste domain names — one per line
  2. 02Pick TLD extensions to cross-check
  3. 03Browser fires parallel RDAP queries
  4. 04Results appear live — export as CSV
Parallel RDAP queries for max speed
All TLDs with RDAP support via IANA bootstrap
Export to CSV — runs entirely in your browser

What we do

  • Core

    Parallel RDAP

    Concurrent RDAP queries across all registrars. Large batches complete in seconds, not minutes — all in your browser.

  • Coverage

    RDAP-Covered TLDs

    Uses the IANA RDAP bootstrap to resolve the correct server for any TLD that has RDAP support — .com, .io, .ai, .dev, country codes, and new gTLDs.

  • Export

    CSV Export

    Download results as CSV. Filter before exporting by availability status, registrar, or TLD.

  • Privacy

    No Server Logging

    Checks run client-side. Your domain lists never touch our servers — zero privacy risk.

  • Speed

    No Rate Limits

    Because checks are client-side, you face no server-side rate limits. Query at browser speed.

  • Free

    Always Free

    No account, no credit card, no limits on our end. Paste your list and check instantly.

Resources

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→ Bulk Domain Checker
Free — No Account Needed

Check hundreds
simultaneously.

Enter domain names one per line (with or without TLD), choose extensions, run the check. Free — no account required.

  • One domain per line — with or without TLD
  • Parallel RDAP queries in your browser
  • No server logging — your lists stay private
  • Export results as CSV

TLD Extensions