When you land on s-0.sipis.acrobits.cz, you see nothing but the default nginx welcome message. That’s a red flag for any site that expects visitors to take it seriously. Legitimate infrastructure subdomains — especially those tied to a real company like Acrobits — typically have a login page, a status dashboard, or at least a company logo. Here there’s none of that. No privacy policy, no terms of service, and no way to contact anyone.
Is s-0.sipis.acrobits.cz a scam? Probably not in the active sense — it’s just an unconfigured web server. But the lack of identity and purpose means you should treat it as untrustworthy until proven otherwise. If you arrived here through a link or email, question why. There’s no reason to enter any information on this page, and clicking around won’t reveal anything useful. For now, the safest move is to leave and only return if the site ever shows actual content and a clear owner.