What is IP Blacklist Checker?

IP blacklist check tool will show if the URL or IP entered is listed with DNSBL or SURBL systems. These systems are used by email system administrators to try and eliminate spam email messages before they reach their users..

Why is Spam blacklist(DNSBL)?

Blacklist (DNSBL) is a list of IP addresses and domain names that supposedly are source of email spam. Most mail servers and spam filtering systems use spam block lists. If your domain name or mail server IP address is listed in the spam list, email you send may be rejected or marked as spam.

Use this tool to check over 80 popular DNSBL server to find if your IP address is listed as source of spam.

How to Use?

1. Enter your IP address in the top box.

2. Click "Blacklist check" button to get your results.

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