Show HN: GitHub contribution shown right

The UI is misleading. By seeing the GitHub-like design, I thought I was on GitHub and was surprised not to see any content. Took me a while to understand that I had to input my username as I wasn't on GitHub.

Besides that, I like this tool. I was also surprised to see that a file I had uploaded in a GitHub comment, then edited/removed, was still available; your website gives me access to this upload of mine.

Whenever you enter the username of a user with a website, the website link links to namial.us instead of the user's actual website.

Spot on, thanks.

Doesn't show any activity for whatever users I try it on.

What the username you tried? Do you change the activity period to other than '24 hours'?