I searched for Twitter - https://logosear.ch/search.html?q=twitter Literally none of those are Twitter's actual logo. They're all subtly wrong (dimensions, color, aspect ratio, etc). In a few cases they're wildly off. If I can't trust this as a source I'd still have to look up the real one. Maybe it's less of a problem for smaller companies whose logos won't get cloned as much, but if I put any of those Twitter logos in a presentation of a website I don't think I'd impress anyone.