Feature Request cause I feel like more people would be able enforce Safe Search for Google, Bing, DuckDuckGo, YouTube and other site easier for everyone that uses and maybe some that don’t that would like to.
I was just wondering if I could take advantage of p/r 2978 by using /etc/pihole/custom.list. Would that accomplish the same thing with less formatting required on my part? I could just make a .list file like this?
That feature is currently only in the development version of Pi-hole, whilst it's generally OK, I wouldn't recommend switching from master to development for full time usage.
Hopefully we will have a beta round at some point in the near future, though no promises that it will make it in! As ever though, no timeframes on new releases/betas.
In the mean time, your only option is to use the methods as described in the links above, I'm afraid.
Fair, just as long as you keep in mind that it is prone to break at any time. If you're comfortable with troubleshooting issues to see why they are broken, then development is ok.
I have tested via nslookup and it returns the IP address that corresponds to the CNAME in custom.list just not sure how to go about testing the search engine.
If it's a file that is edited/used by a pihole command then it's intended to be used only by pihole commands. If you manually edit files and change things we can't know if you did it right.