Blacklist Check

Find whether an IP address appears on known abuse or reputation lists.

What this checks

  • AbuseIPDB availability for the entered public IP address.
  • Abuse confidence score, total reports, last reported date, and whitelist flag when AbuseIPDB responds.
  • Returned country, usage type, ISP, and domain context from the AbuseIPDB check payload when available.

How to interpret results

  • Higher abuse confidence scores and more reports mean the IP has stronger historical abuse evidence in this source.
  • Unavailable means the site could not retrieve a stable AbuseIPDB result and is not the same as a clean IP.
  • Blacklist context should be interpreted alongside ASN ownership, proxy traits, and your operational use case.

Common issues

  • This Batch 4 release checks AbuseIPDB only; other DNSBL or reputation sources are not queried in v1.
  • A missing API key, upstream rate limit, or upstream error produces a stable unavailable panel instead of a broken page.

Privacy note

This checker sends the entered public IP address to the site's server, which may query AbuseIPDB when that upstream source is configured.

Key Tools and References

Frequently Asked Questions

Which blacklist source does this checker use?

This v1 standalone checker uses AbuseIPDB data only and reports when that source is unavailable.

Does a clean result prove an IP is safe?

No. A low or missing abuse signal only means this source did not report strong evidence. Review ASN, proxy, and IP quality signals as well.