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What is a DNSBL?
DNS-based blacklists publish addresses or ranges associated with spam or abuse. Mail servers may reject or score mail based on these lists, but listing reasons and delisting processes differ per zone.
How to use this tool
Enter the IP. Run the check. Read each list’s policy if listed. Use the full tool for batch or historical context.
Use cases
Mail deliverability debugging, abuse desk triage, verifying clean IPs after remediation, education on reputation systems.
Privacy and security
Lookups and probes may be sent through WebStatus.in infrastructure to reach public DNS, HTTP, or reputation systems. Only query targets you are authorized to test, and avoid pasting secrets into any network tool.