add option to resolve hostnames to CNAMEs for better accuracy

[Thorin-Oakenpants]

I don't where to share this, so I'll just share it here: This is a really good read

• https://robertheaton.com/2018/11/28/https-in-the-real-world/

PS: You'll want to get comfy, settle in, and make a cuppa tea (but not in that order)

[claustromaniac]

Thanks!