Blacklist Lookup - Check if Domain Is Blacklisted

If your domain appears on a blacklist, you'll need to identify the cause (typically spam complaints or malware), resolve the underlying issue, and request removal. Our tool makes it easy to check your current status across all major blacklists simultaneously.

Common Reasons for Blacklisting

• Sending unsolicited email (spam)
• Website infected with malware
• IP address previously used by spammers
• Phishing content detected on your domain

How to Use the Blacklist Lookup Tool

1. Enter the domain name or IP address you want to check.
2. Run the scan to query it against the full set of supported blacklists.
3. Review the results list, which marks each blacklist as clean or listed.
4. For any listing found, note which blacklist flagged you and visit that provider's site for their specific removal process.
5. Re-run the scan after cleaning up the flagged issue and submitting a delisting request to confirm you're clear.

Who Uses This Tool: Email marketers use it before a major campaign send to confirm their sending IP is clean and won't land in spam folders. System administrators use it after a server compromise to check whether the incident has already gotten the domain flagged. Agencies managing multiple client domains use it as a routine health check to catch blacklisting issues before clients notice deliverability problems.