Leave feedback or report an issue

If you’re visiting this page, you may have found something wrong with the site. Or perhaps you have some general feedback you’d like to provide. If so, you’re (probably) in the right place!


If you have feedback on a specific lesson (e.g. a typo or incorrect example), please leave a comment on the lesson itself.

Best practice

If you have feedback about the general site (e.g. missing topics, broken features), or just want to say hi, leave a comment below.

If the site is really broken and the comment section isn’t working, try the contact form.

Thanks for helping to make the site better for everyone! You’re great!

520 Errors

If you are here to report a 520 error that you just experienced, please include the time it happened for you and your timezone.

This will help us diagnose more effectively. Thanks!

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