Our Blacklist Checker tool helps you monitor and verify IP addresses, email addresses, and domain names across multiple blacklist databases. Here's what you can check:

• IP Address Check: Verify if an IP address is listed in any spam blacklists
• Email Check: Check if an email domain is blacklisted
• Domain Check: Monitor your domain's reputation across various blacklists

The tool checks against major blacklist providers including:

• Spamhaus (zen.spamhaus.org)
• SpamCop (bl.spamcop.net)
• Barracuda (b.barracudacentral.org)
• And many more...