Bulk Domain Availability Scanning With Domain Checker
Scan a full keyword list across multiple TLDs in one pass, read the results grid, and use the AI generator when names run out.
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A bulk scan in Domain Checker tests every keyword on your list against every TLD you selected in a single pass — twenty names across six extensions is one scan covering a hundred and twenty combinations, not a hundred and twenty registrar searches. The workflow below is a complete naming session, from a messy list of ideas to a confirmed shortlist.
Before you begin
- Domain Checker installed — see the setup guide
Running the session
Load your keyword list
Paste every candidate name into the input — the whole brainstorm, not a pre-filtered selection. The point of bulk checking is that checking is no longer the expensive step, so weak candidates cost nothing to include.
Select your TLDs
Tick every extension you would genuinely launch on. Scanning .com alone hides the .io or .ai fallback you might be happy with; scanning extensions you would never use just adds noise to the grid.
Start the scan
Each keyword × TLD combination is queried against the official RDAP registry for that extension, and the grid fills as answers arrive. Progress saves locally and automatically, so a long list survives closing the popup or switching tabs.
Read the grid, then filter
The matrix view shows patterns a one-at-a-time search never could: a stem free across every extension is a strong signal, a stem taken everywhere is a dead end. Toggle available-only to collapse the grid to actionable options.
When the list runs dry
Every naming session reaches the moment where the obvious options are registered. The built-in AI brand name generator restarts it: give it a seed keyword and it produces domain name concepts using linguistic variations and modifiers — prefixes, suffixes, and word play that expand one stem into a candidate set. Generated names drop straight into the same bulk scan as anything you typed, so the loop is generate, scan, filter, repeat.
Trusting the results
Availability answers come from RDAP, the structured registration-data protocol operated by the registries themselves, across 15+ official providers. That means no stale cached lists and no middleman inference — when the grid says a domain is unregistered, that is what the registry responded at scan time.
Two caveats belong in any honest naming workflow. Availability is a snapshot: a name can be registered by someone else between your scan and your purchase, so register the winner promptly. And RDAP reports registration status, not price — a technically available premium-flagged name may cost more at the registrar.
Scan history is kept locally, so yesterday's session is still there tomorrow. Naming happens in bursts across days; the tool is built to survive the gaps.
Next steps
Domain Checker
Paste a list of names and check domain availability across extensions in one pass, then export the results as CSV.
See also
Related documentation
- Getting Started With Domain CheckerInstall the Domain Checker Chrome extension and check a whole list of domain names across .com, .io, .ai and more in a single scan.
- Custom TLDs & CSV Export in Domain CheckerAdd niche and country-code TLDs to your domain scans, filter to available names only, and export the shortlist as a CSV file.