问题:

Is there an open database of blacklisted IP for the Web? With a lot of public web proxy you know... such the blacklist used by the Global blocking of Wikipedia.

回答1:

The Project Honeypot provides as service called Http:BL. As an active member of Project Honeypot you can query their database of IPs that are known as email address harvesters or comment spammers.

回答2:

You can use Blacklist IP Addresses Live Database from myip.ms -

http://myip.ms/browse/blacklist/Blacklist_IP_Blacklist_IP_Addresses_Live_Database_Real-time

They have latest Blacklist IPs collected during the last 10 days for use in .htaccess file or in website firewall.

回答3:

Google has a Safe Browsing API that lets you check against a db of hashed values. It's public and it's encrypted. They have two databases; phishing and malware data in 2 separate blacklists. However, they contain hostnames, not IPs, but perhaps its something you could use.