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Blacklist Checker

Check IP against active DNS blacklists via Cloudflare DoH — results validated against 127.0.0.x standard
How it works: A real DNSBL listing always returns an IP in the 127.0.0.x range. This tool only marks an IP as listed if the response matches that standard — eliminating false positives from inactive or wildcard zones.
8.8.8.8 (Google DNS) 1.1.1.1 (Cloudflare) 198.51.100.1 (TEST-NET)
Checked IP
0
Listed
0
Clean
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Error
0
Total
⚠ Listed on the following blacklists
→ Verify on MXToolbox
Checking… 0%