Bulk lookup · Pro

Inspect 1,000 inputs at once.

Upload a CSV of domains, IPs or URLs. Pick the tools to run. Get a single CSV/JSON/Excel back — or stream results to a webhook.

CSV upload

Tools to run

dns/lookup domain/whois ssl/cert http/security-headers email/auth ip/geo

Free tier: 5-input demo. Pro: 1,000 inputs/job × 50 jobs/day. Enterprise: unlimited.

Or via API

curl -X POST https://host.tools/api/v1/bulk \
  -H "X-API-Key: $HT_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "tools":  ["dns/lookup", "ssl/cert"],
    "inputs": ["host.com","checkhost.com","hostinfo.com"],
    "format": "csv",
    "webhook":"https://you.example/results"
  }'

Bulk jobs run on a dedicated worker queue and stream results back to your webhook as they complete. Output formats: CSV, NDJSON, Excel.