NamingSignalalpha

Bulk domain checker · evidence per result

Check a whole naming shortlist at once.

Paste up to 100 names, one per line, and check the domain endings you would actually launch on. Each result reports its registry source and check time, keeps failures honestly unknown, and links to a registrar for the final manual verification.

0 names ready · 0 domain combinations · 0 Naming Credits

Domain endings (up to 5)

Batches stay within the API bound of 150 combinations per request. Registry failures stay unknown; they never turn green.

Honest states

Seven states, not one green badge

Results use registered, likely unregistered, premium, parked, active site, unsupported, and unknown. Likely unregistered appears only after the registry passes a canary test: a control lookup of a domain known to be registered, proving the source can be trusted for that ending.

Built for shortlists

From brainstorm to evidence in one paste

Bring names from a spreadsheet, a brainstorm, or an AI session. The checker normalizes forgiving input like example.com or https://example.com, removes duplicates, and charges one Naming Credit per name and ending checked.

Automation ready

Same contract for scripts and agents

The page uses the public POST /api/v1/check endpoint. Run the identical checks from the REST API, or let Claude Code and Codex run them through the MCP server.

Questions

Bulk domain checker FAQ

How many domains can I check at once?

Up to 100 names across up to five domain endings. The tool batches requests so each API call stays within the bound of 150 name and TLD combinations, and results stream in as each batch completes.

Does likely unregistered mean I can buy the domain?

No. It means a calibrated registry lookup returned not-found at the shown check time. Price, premium status, and current registrability are confirmed at a registrar, and each result links to that manual step.

What happens when a registry times out or rate-limits?

The result stays unknown. NamingSignal never converts a failed lookup into availability, because a confident false positive is the most expensive mistake a checker can make.

What does a bulk check cost?

One Naming Credit per name and TLD combination, so 100 names on two endings cost 200 credits. Free accounts include 15,000 credits per UTC calendar month, no card required.

Can I export the results?

Yes. Download a CSV with one row per domain, including status, source, check time, and the registrar verification link. The same checks are available over the REST API, CLI, and MCP for automation.