puhsd210-my.sharepoint.com isn't a random website — it's a Microsoft SharePoint site, almost certainly set up for a school district (the "PUHSD" part stands for a public school district). SharePoint is the platform companies and schools use to share files, collaborate on documents, and manage internal content. When you visit the address, it immediately sends you to Microsoft's official login page, which is exactly what a legitimate SharePoint site should do. That login page is the same one used by millions of Office 365 users every day.
If you're a student, teacher, or staff member who was given this link by your school, it's safe. The site uses strong encryption, passes Google's threat checks, and is hosted on Microsoft's own servers. The absence of a public favicon or a Trustpilot page is irrelevant — this isn't a consumer business, it's a private workspace. The only thing to watch for is that you're on the real Microsoft login page (check the URL starts with login.microsoftonline.com) before entering your school credentials. That's standard practice for any password-protected service.
In short, puhsd210-my.sharepoint.com is not a scam. It's a secure, institutional tool. Use your school login and you're fine.