bsh-eggo.benchkatalog.com looks like a login portal rather than a typical public business site. The page asks for a username and password and gives you nothing else. There isn't even a product explanation or support contact, let alone a company name. That's unusual for a legitimate software service. Most services make it easy to see who operates them, where to get help, and what they do with your data.
The checks here don't reveal malware or blacklisting, so there's no hard evidence this is a scam. But there's also no evidence it's legit. The absence of an operator is the issue. If an employer or school sent you this link, verify the address through their official channels before typing anything. If you found it on your own, the missing company information is a good reason to stay out. bsh-eggo.benchkatalog.com reviews are essentially nonexistent because the site has no public footprint. That doesn't prove fraud, but it does mean there's nothing to reassure you.