acemsa1.com isn't a typical website you'd browse or buy from. It's a redirect domain — type it into your browser and you're sent straight to ActiveCampaign's homepage. So the question 'is acemsa1.com a scam' really depends on what you expect. The domain itself is nearly ten years old, uses a trusted registrar (MarkMonitor), and has no malware history or blacklist marks. That's a solid baseline for any domain that's been around this long.
The single real downside is that acemsa1.com doesn't use HTTPS. Your first connection to the domain is unencrypted, but because you're immediately redirected to activecampaign.com (which does have proper encryption), you're not exposed to a typical phishing risk. For a redirect domain, this is imperfect but not alarming. There are no acemsa1.com reviews on sites like Trustpilot, but that's normal for a domain that doesn't act as a standalone business.
If you ever land on acemsa1.com and it shows you something other than a redirect to ActiveCampaign, that would be a red flag. But based on the signals we've checked, it behaves as a legitimate forwarding domain for a known software company.