If you've come across iot.ap-northeast-1.amazonaws.com, you're likely looking at an AWS IoT endpoint, not a typical website. It returns a 404 error because it's a backend route for machine-to-machine communication, not a page you'd browse. For an infrastructure service like this, the signals are exactly what you'd expect: strong security, clean reputation, and the backing of Amazon's trusted network. There aren't any iot.ap-northeast-1.amazonaws.com reviews because consumers don't use it directly. Is iot.ap-northeast-1.amazonaws.com a scam? Absolutely not. It's part of a major cloud provider. If you're a developer integrating AWS IoT, this endpoint is likely legitimate. Just note that the domain itself is not a website, so there's nothing to verify beyond the fact that it belongs to Amazon.