If you search for [is Google down], Google will show you an answer, like it does often with other answer based queries, to tell you "no." I guess if Google is able to give you an answer here, by definition Google is not down.
Here is a screen shot of this in action:
I spotted this via a retweet from @JeffDean of Google but from:
OK, Kudos to whoever made this instant result happen :-) pic.twitter.com/33kZy6zV0C
— Simon L. B. Nielsen (@simonlbn) August 30, 2020
Cute Google, very cute.
Forum discussion at Twitter.