Cleaned keyboard, now to test it?

Hello

I have had my Keyboard cleaned, a Logitech K360, and I am about 80% sure that all the keys are either in the correct place, or are fully working. Yes, I have seen pictures of before I had my keyboard cleaned, and it looks correct in the before and after, but is there a keyboard test for my K360 to make sure all the keys are correct?

I have found some keyboard testers, and they say some of my keys either don't work or are in the wrong place... I think this is due to it being a universal test, not a dedicated one.

So, is there a website that allows me to test all my keyboards after they have been cleaned to make sure they work?