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IP Blacklist Check

Easily find out if your IP address is listed on any major anti-spam or blacklist databases. This helps you determine whether your emails or forum posts might be blocked or flagged as spam.

Your current IP address has been auto-filled in the box below. Simply click “Check IP Address” to scan against the top spam databases. If your IP is safe, no checkmarks will appear—if it’s listed, you’ll see clear indicators next to the database names.

Enter an IP to check, or click the button to use your current IP.

What is this all about?

When an IP address is "blacklisted" or has a poor reputation, it means it has been identified by services like AbuseIPDB (which aggregates reports and analyzes IP behavior) as a potential source of spam, malware, or other malicious activity. Many systems use such reputation data to filter or block incoming connections. If your IP has a high abuse confidence score or numerous reports, your emails might be rejected, or you might have trouble accessing certain websites or online services.

This tool checks your IP address (or an IP you enter) against the AbuseIPDB database to assess its reputation.

Not sure who owns the IP you're checking? Use our IP WHOIS Lookup to find out more details about any IP address.