Google has a typo on its bad request page

I don't think that's a typo; that's a meme.

https://knowyourmeme.com/memes/the-1-phenomenon

I see this post is getting flagged; IMHO personally, I learned something new from this post (that this typo is intentional) which I would not have learned otherwise.

Can we keep this post up with an edited title if necessary?

It is intentional. Its one of those silly internet culture things.

That's the joke.

See for yourself: https://google.com/a

It's intentional. Note how the number 1 and the exclamation mark are on the same key on the keyboard. It's an old internet joke that when you're over-excited you may not hold the shift key down the whole time you're adding too many "!!!!!"s.

My favourite variant on that one is

!!!111eleven

I like this. My twist was going !!!1111one

It's internet lingo.

It's on purpose

I think now is the appropriate time to use the following:

Woosh!

omg!!!!!!!!!111111