IP-Blocklists

Blocklists

• https://github.com/stevenblack/hosts (seems to be the most popular and easy to get started with)
• http://www.blocklist.de/en/index.html
• https://www.iblocklist.com/lists
• https://iplists.firehol.org/
• https://github.com/yokoffing/filterlists
• https://github.com/DandelionSprout/adfilt

Checker APIs

• https://proxycheck.io/
• https://viz.greynoise.io/