Oh man I am with you on this in that, the fact that it's not a phishing site, to me, means google is sending the completely wrong message to users. Here is a site with a non-google.com URL that expects users to know that only google owns that TLD, has a non Google sign in page, uses google logo. Eek.
They literally are using their own TLD, ".google".
The comment you replied to is surprised that they did use their own TLD, thinking they should stick with their classic domain on not their own TLD (google.com)
the sign-in flow directs you to a normal google.com sign-in, or you can use the sign-up form on this site just like any other non-google site - they're not asking you to enter your google account credentials here.
It is Google's e-learning platform that provides courses and labs (step-by-step trainings in Google Cloud). Before cloudskillboost it was called Qwiklabs which was acquired by Google a couple of years ago. It is completely legit and has a OAuth login flow using your Google Identity.
For Google partners the trainings are free.
(Source: working at a Google Cloud partner)
Its very weird for Google to be charging for this yes. Definitely pricked my ears up but can’t see how this is spoofed unless google.com has been pwnd.
So you trust Google can afford Google.com but you specifically think a TLD of .Google is phishing and not literally the first TLD they would buy when the proliferation of new custom TLDs came out years ago?
Its a normal sign in flow. A safe way just in case is to log in to Google normally, close that tab, open the posted link then click the links in the oauth flow without entering credentials.
A normal sign in flow, that is not google.com (or a subdomain), or an oauth sign in screen, presenting as google, seemingly asking for my google creds? But is not google.com or affiliated. I'm just supposed to...trust it's google?
Again, seems sketchy. Even if not actually sketchy (I'm obviously unwilling to try).
edit This definitely seems like phishing?