DNS Insight
Blacklist Check
IP Blacklist Checker - Check 50+ DNSBLs
Check if an IP address is listed on major email and spam blacklists that could affect email deliverability.
How It Works
The tool queries multiple DNS-based blacklists (DNSBLs) to check if the IP is listed. Each blacklist maintains its own criteria for listing IPs.
Understanding Results
Results show which blacklists contain the IP and which don't. Being on a blacklist may indicate spam activity or compromised systems. Contact the blacklist operator for removal.