When you land on gq3d9mbvmfqt9njrh1yt9y3dmr.c360a.salesforce.com, you get a 404 page. That's it. No products, no login, no explanation. The domain is a subdomain of salesforce.com, but that doesn't automatically make this specific address trustworthy or useful. In fact, it looks like an abandoned or misconfigured endpoint.
For context, most legitimate subdomains on enterprise platforms serve a clear function: a login page, a support portal, or a marketing microsite. This one does nothing. There's no contact info, no privacy policy, and no record of this site in the Wayback Machine. Even if the parent company is reputable, a non-functional subdomain offers nothing to trust.
What should you do? If you received a link to this address, don't click it expecting to do business. It's not a working website. If you're investigating whether gq3d9mbvmfqt9njrh1yt9y3dmr.c360a.salesforce.com is a scam, the evidence simply shows there's nothing there. That's not definitive proof of fraud, but it's a strong signal to avoid it until someone explains what it's supposed to be.