[alttab]

There has to be some level of fair use or copyright involved, no? You are taking corporate images, modifying them, and then distributing their modified brand/logo potentially without their consent. If they don't like the results, they could sue you.

Or at least, I feel that would be the case.

[jameshart]

'Fair use' only applies to the copyright implications of distributing these images; the far murkier bit of IP law that this gets into is trademark licensing. That's far more likely to be the issue here.

[x5n1]

Not really modifying it. But they may have branding and licensing guidelines that a service like this might not meet which would likely result in a cease and desist rather than an immediate lawsuit.

[Judson]

I tested a few examples, and it looks to just be parsing the page and returning the apple-touch-icon.

[nandhp]

That doesn't explain where https://logo.clearbit.com/debian.org comes from....

[chinathrow]

https://www.debian.org/favicon.ico can't be the source.

[AUmrysh]

It looks like that's the Debian icon on Twitter.

[TazeTSchnitzel]

https://pbs.twimg.com/profile_images/1311499343/debian-squar...

Looks like it.