Bulk DNS / Email Lookup

Domains separated by commas (max 25)

Record type

Open in terminal
Try:

How it works

Each domain is validated and queried through the same DNS service as the single lookups, with a cap on the number of domains per batch.

Safeguards & responsible use

  • Only public domain names are accepted; internal names (.local, .internal, …) are rejected.
  • Queries go to public resolvers, never to internal DNS.
  • Per-client rate limiting and query timeouts.
  • Batch size is capped and counts against your rate limit.

Frequently asked questions

How many domains can I check at once?

A fixed maximum per batch, to keep the service fair and prevent abuse.

Which record types are included?

MX, SPF, DMARC and A/AAAA by default; you can choose others.