Found a bug? Got an idea? Just want to say the site loaded slow on your phone? Drop a message.
Pretty much anything related to the site. Some examples of stuff that actually gets responses:
Just please don't send "hello?" with nothing else. Tell me what's actually going on so I can help.
contact@spacebarclicker.live
Usually within 1-2 days
Same email, mention "business" in subject
If your message is "the site doesn't work on my phone" — please mention which phone, which browser, and what specifically isn't working. Same goes for any bug. Without that I can't really do anything except say "hmm that's weird".
For score issues, screenshots help a lot. Most "wrong score" reports turn out to be the timer working differently than expected, but I'd rather check than ignore.