When you land on sp.focus.de, you're greeted with a 'Not found' message and a 404 error. That alone is a dealbreaker for most visitors — a site that doesn't load has no business asking for your time or trust. This subdomain under the Focus.de umbrella appears to be completely inactive: it blocks all search engine crawlers, has no branding or contact information, and has zero snapshot history in the Wayback Machine. Even the basic security protections like HTTPS are in place, but they don't matter if the page itself is broken.
For a subdomain that might have been intended as a service or special section, the lack of any working content or transparency is concerning. There's no way to verify who runs this page or what it was supposed to do. If you came across a link to sp.focus.de, treat it as a dead end — don't expect any functionality, and don't enter any personal information. Until the site actually works and shows who's behind it, there's no reason to trust it.