You're describing the behavior of suspending Adblock - are you sure you disabled Adblock, or merely suspended it?
Have you tried adding the domain to the whitelist?
You do realize that this domain generates metadata for ad presentation (among other things)? It's blocked on my setup currently (and DNS_PROBE_FINISHED_NXDOMAIN is the exact error given when blocked):
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:
If your problem is solved, feel free to mark the relevant post as the solution; and edit the title to add "[SOLVED]" to the beginning (click the pencil behind the topic).