IP Reputation & Blacklist Checker
Check if an IP address is blacklisted, flagged as malicious, or associated with spam, proxies, TOR or botnets.
Checks the IP against multiple threat intelligence sources including AbuseIPDB, Spamhaus, SORBS, Barracuda and more.
Clean IP
No threats detected across all checked sources.
0
Abuse Score
What is IP reputation?
IP Blacklists
Blacklists (also called DNSBLs or RBLs) are databases of IP addresses known to send spam, host malware, or engage in abusive behaviour. Email servers routinely check these before accepting messages.
Why Your IP Might Be Flagged
Your IP could be flagged if it was previously used by someone else for abuse (dynamic IPs change owners), if your device is infected with malware, or if your network was used to send spam without your knowledge.
How to Get Delisted
Most blacklists have a self-service delisting process. First fix the underlying issue (malware, open relay, etc.), then visit each blacklist’s website and submit a delisting request. It typically takes 24-48 hours.
VPN & Proxy IPs
VPN and proxy IPs are often flagged by reputation services – not because they’re malicious, but because they’re used to mask identity. This can cause issues accessing some websites that block anonymising services.