When you land on muellerinc.cloud.com, the first thing to notice is the web address itself. It's a subdomain under cloud.com, not a separate registered domain. That's highly unusual for a company using 'Inc.' in its name. Legitimate businesses almost always register their own domain, so this alone raises questions.
The site has an SSL certificate and proper security headers, so it's not a malware trap. But you won't find any about page, contact details, privacy policy, or terms of service. For a site that presents itself as a business, those are basic expectations. Without them, there's no way to know who you're dealing with or what they'll do with your data.
If you're wondering 'is muellerinc.cloud.com a scam', the honest answer is we can't prove it is one, but there's not enough legitimate signal to trust it either. The lack of ownership transparency is the biggest concern. Most professional service websites will at least show a phone number or email address. This one doesn't. Until that changes, proceed with extreme caution and don't enter any personal information.