Website Rating Accuracy in Political Claims on Websites

Try Politifact. There are others.

It's probably politifact like engineer said. Snopes isn't bad for that either. Not sure it matters at this point though. You can show someone irrefutable proof that something isn't true and they'll still reject it if it goes against their views.

I found it: https://account.newsguardtech.com

That looks like a subscription site.