Unable to access Google Analytics after install of OpenWRT 18.06.4 on TP-Link Archer C7 v2

And likewise, I don't see yours.

Honestly, I would think you're trying to whitelist the domain, not "domain URL." If you read the instruction under domain URL, it states that's used to download a list. The instructions under Whitelisted domains clearly states:

Individual domains to be whitelisted

I would add it there.

For more detailed information, ask it's creator, @dibdot; and/or see the Adblock support thread.

Hope this helps.