IP Blacklist Check
Check if your IP address is blacklisted by spam filters and security services. Verify your IP reputation across multiple databases.
IP Blacklist Check
Check if your IP is listed across spam and abuse databases.
Understanding IP Blacklists
Blacklists are shared signals used by mail providers and security tools to block abusive traffic.
What are IP Blacklists?
IP blacklists are databases that track addresses linked to spam, malware, or abuse. Providers use them to block or flag suspicious connections.
Why Check Your IP?
A listing can hurt email deliverability, trigger blocks, or damage trust. Regular checks keep your reputation healthy.
Common Blacklist Databases
Spamhaus
One of the most comprehensive spam blocking databases.
AbuseIPDB
Community-driven reports of abusive IP addresses.
SURBL
Spam URI realtime blocklist for malicious websites.
Project Honeypot
Tracks harvesters, comment spammers, and malicious bots.
How to Remove from Blacklists
Identify the Problem
Determine why the IP was listed (spam, malware, or abuse).
Fix the Issue
Remove malware, stop spam activity, and secure the system.
Request Removal
Contact the blacklist provider with proof of remediation.
Prevent Future Listings
Monitor reputation and keep security controls updated.
Data Sources
This tool queries 15+ real DNSBL (DNS-based Blackhole List) databases and AbuseIPDB to provide comprehensive IP reputation analysis.
Live data from real blacklist databases