blankrome-my.sharepoint.com is a subdomain of Microsoft's SharePoint Online service. This kind of address is used by businesses to host internal documents, team sites, and shared calendars. When you visit it, you're redirected straight to a Microsoft login page — that's a good sign. It means the site is using Microsoft's official authentication system, which is the same one used by millions of organizations worldwide.
What about security? The site forces HTTPS, has a valid certificate, and blocks clickjacking. It is not on any blacklists. The lack of a web archive and missing favicon might seem odd for a public website, but for a private SharePoint site that blocks search engine crawlers, both are completely normal. The site isn't meant to be discovered or indexed; it's a behind-the-scenes tool for a specific company.
If you were worried that blankrome-my.sharepoint.com might be a scam or fake, the evidence says otherwise. SharePoint subdomains like this one are widely used by legitimate businesses. The redirect to login.microsoftonline.com is exactly what you see with any Microsoft 365 tenant. The only thing to keep in mind is that this site requires a company account to access — if you don't work for Blank Rome, you won't be able to log in, but that's by design, not a red flag. Trust this site for what it is: a secure, enterprise-grade collaboration platform.