legind

Yes, our test does work for that and various hosts-based blockers are supported (like AdAway for Android, for example). In order for our test to give accurate results, the host-based blocker has to add our simulated trackers to its block list, which some lists may not have done yet.

With certain rare configurations (if you have a domain-based blacklist blocker and javascript disabled) this may occur. I suggest turning your js back on just for the test.

That's right, though it's a bit more difficult. Lots of sites use the User-Agent header to determine how to render a page, and may not render it at all if it's an unexpected value. Pages that allow you to install addons to your browsers also use this string to figure out if you're really running the target browser.

TXT isn't an option because the records themselves are unsorted. Use the above command without the pipe to sort looks weird, but not as weird as TXT would.

tmux supports 256 colors with the -2 flag. I just add an alias in my .bashrc to make this the default.