IP blacklist test

What is an IP blacklist?

An IP blacklist is a database of IP addresses associated with spam or other suspicious activity. Examples include databases maintained by SpamCop, Barracuda, and abuse.ch. Entries may be added or removed automatically. If your device is compromised or infected with malware, its public IP address may be added to a blacklist.

Why should I check whether my IP address is blacklisted?

IP blacklists help services assess incoming connections. A listing does not always indicate malicious activity: some databases include dynamic IP addresses as a matter of policy. If your IP address is listed, check the operator’s explanation and follow its removal procedure if appropriate.

How does the blacklist test work?

Click Run test to check your public IP address against the blacklists below. bash.ws queries each blacklist using DNS and shows whether your IP address is listed.

Which blacklists are included in the test?

The test checks the following blacklists:

1. b.barracudacentral.org - The Barracuda Reputation Block List has been operating since 2008.
2. bl.spamcop.net - The SpamCop Block List was founded in 1998.