Run a bulk check
Submit thousands of domains at once and stream results as they resolve.
Bulk checks scale to large lists of domains per job. Use them for any backend pipeline, brand sweep, or candidate evaluation.
In the dashboard
Open Bulk checks
Open app.norcube.com → DomainRadar → Bulk checks → New bulk check.
Provide your domains
- Paste – one domain per line.
- Upload CSV – first column is the domain. Other columns are ignored.
Pick a check mode
See Check modes. For "is any of these available?" use Bloom or Verified – cheap and fast.
(Optional) Set max-age
The oldest cached result that counts as fresh. Higher max-age = lower cost on re-runs against overlapping lists.
Start
Click Start. You're redirected to the job page. Results stream in as they resolve; the progress bar shows completion percentage.
Watch results live
The job page renders a paginated results table that updates as workers report back:
| Domain | Available | Method | Registrar | Expiry |
|---|---|---|---|---|
example.com | ❌ | rdap | Cloudflare | 2027-08-15 |
example42.com | ✅ | bloom | – | – |
example-test.io | ✅ | dns | – | – |
You can save any row individually with the ⭐ button.
Download results
When the job completes (or any time before), click Download CSV. The download is paginated server-side, so very large jobs stream out without timing out.
Cancel a job
Job in progress and you realised the input was wrong? Click Cancel.
- Already-resolved results are kept.
- Pending domains move to
cancelledand don't run. - You're billed for what ran, nothing for what didn't.
Behaviour and edge cases
- Duplicate domains in your input are deduplicated before fan-out. You're billed once per unique normalised domain.
- Malformed domains appear in the results with an error and aren't billed.
- Results aren't ordered by input row. They appear in resolution order. If you need correlation, include your row's identifier in your application's mapping when you submit and join on the domain afterwards.
- Concurrent bulk jobs count against your hourly bulk-job limit. See Limits.
Programmatic alternative
Same flow via API. Open the Swagger UI on your DomainRadar host – the bulk endpoints are under Bulk Checks. The job stream is Server-Sent Events.