Quad9 - Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
Surge for Mac - Advanced Web Debugging Proxy for Mac & iOS
NextDNS - Block ads, trackers and malicious websites on all your devices.
Charles Proxy - HTTP proxy / HTTP monitor / Reverse Proxy
OpenDNS - OpenDNS provides faster and safer Internet access for your home or Business.
HTTP Headers - HTTP Headers allows you to quickly see the HTTP header information for the current URL.