IP Blacklist Checker

Go to IPLocatorTools IP Blacklist Checker, enter your IP address, and click Check Blacklists. The tool checks your IP against 6 major DNSBL blacklists and shows whether it is listed on any of them.

A DNSBL (DNS-based Blackhole List) is a database of IP addresses known to send spam or engage in malicious activity. Mail servers query these lists before accepting email — if the sender's IP is listed, the email is rejected or sent to spam.

IPs get blacklisted for sending spam, participating in botnets, hosting malware, running open proxies, or being reported for abusive behavior. Shared hosting IPs and dynamic ISP IPs sometimes get listed due to other users on the same IP range.

Each blacklist has its own removal process. Spamhaus has a lookup at spamhaus.org to check listing reasons and request removal. Most require you to fix the underlying issue first (remove malware, stop spam) before delisting. Dynamic residential IPs often delist automatically over time.

A blacklisted IP primarily affects email delivery — your emails may be rejected or go to spam. It can also affect access to some services that block blacklisted IPs. Your website itself is usually unaffected unless a CDN or WAF blocks the IP.