ProtonVPN on Testflight now has a “NetShield” feature. Free version can block malware, paid subscription supports ad and tracker blocking too. Interested to learn what filter lists it uses 🤔
Proton's blog posts [1] [2] don't state details on the filter lists being used, only that it's a "massive database of sites known to host malware, spyware, or any other malicious software."
But it looks like they mentioned on Reddit [3], "We have both public and proprietary lists that we maintain." 😕
[1] https://protonvpn.com/blog/netshield-ad-blocker/
[2] https://protonvpn.com/support/netshield/
[3] https://teddit.net/r/ProtonVPN/comments/kwb7pf/what_is_the_sources_of_dns_filtering_for/gj7ocwo/#c
Would be insightful for someone to conduct tests against bad sites [1] across security-focused DNS resolvers from Proton, Quad9, CleanBrowsing, Cloudflare, and CIRA Canadian Shield to see which comes out on top. Per site testing against some resolvers can also be conveniently done via https://dnsblacklist.org by CleanBrowsing.
[1] https://github.com/nextdns/metadata/blob/master/security/threat-intelligence-feeds.json
