On: Show HN: I built an app to use a QR code as my doorbell

[echoangle]

And what does that tell you? How do you detect malware from the URL? Do you have a whitelist of known-good domains and don’t visit anything else?

[pacifika → echoangle]

The http protocol uses human readable addresses for a reason.

[echoangle → pacifika]

Yes, to make addresses memorable, not to detect malicious hosts. If I give you a random .com-domain, how do you determine wether it is safe? And do you actually do it if it’s the link of a hacker news post, for example?