[schoen]

It's up and running now -- J. C. Jones gave a reference to search the log via a web interface.

https://crt.sh/?caid=7395

If you want to dive in more, you can get this data in other formats too.

[tokenizerrr]

So does this make the existence of my https site public, even if I'm not linked to from anywhere?

[schoen]

Yes.