This is a github pages feature. Given an account with the name "example", they can publish static pages to example.github.io

So this being from github.github.io implies it's published by the "github" account on github.

Why would that be phishy? They own the GitHub org on GitHub, hence github.github.io. I always thought it was a neat recursive/dogfood type thing even if not really that deep. Like when Reddit had /r/reddit.com or twitter having @twitter

When they launched github.io, they said it was for user-generated content, and official stuff will be on github.com. Seemingly that's changed/they forgot, but users seems to have remembered. Microsoft isn't famous for their consistency, so not unexpected exactly.

When GitHub pages was launched, IIRC it was _on_ GitHub.com and only moved later. User content that is _not_ pages is on githubusercontent.com to this day.

It's phishy because it's breaks the rules people are generally told for avoiding phishing links, mainly that they should pay attention to the domain rather than subdomains. Browser even highlight that part specifically so that you pay attention to it, because you can't fake the real domain. The problem with what GitHub does here is that while `github.github.io` might be the real GitHub, `foobar-github.github.io` is not because anybody can get a github.io via their username, that was part of why they made github.io separate. Additionally they could easily host this via GitHub Pages but still use a custom domain back to github.com, they just don't.

I would say that GitHub is particularly bad about this as they also use `github.blog` for announcements. I'm not sure if they have any others, but then that's the problem, you can't expect people to magically know which of your different domains are and aren't real if you use more than one. They even announced the github.com SSH key change on github.blog.

Hey, sorry, yes the better link is https://github.github.com/gh-aw/

but we had a redirect set to https://github.github.io/gh-aw/

Both work and we've fixed the redirect now, thanks

>It's phishy because it's breaks the rules people are generally told for avoiding phishing links

Bank: Avoid phishing links, this is what they look like.

Also bank: Here is an link from our actual marketing department that looks exactly like phishing.

I’ve never seen github.github in the URL before, and without additional info I would have assumed it was someone pulling a trick to impersonate their org

Hey, sorry, yes the better link is https://github.github.com/gh-aw/ but we had a redirect set to https://github.github.io/gh-aw/

Both work and we've fixed the redirect now, thanks

So them using their own product makes it phishy? I don’t get it

It’s not like someone else can or could own this link, could they?

Any github pages site is, by default, ORGNAME.github.io.

We recently moved this out of the githubnext org to the github org, but short of dedicating some route in github.com/whatever, github.github.io is the domain for pages from the github org.

Looks like a pre-release product. This is to lower the branding and reputational risk.