Before I tip a photo I check on Google to see if it hasn't been stolen.
Might want to check yandex too. Lot of Russian and Ukrainian scammers steal from sites google doesn't index.
There is also a good plugin for finding stuff called tineye. Not only will it find the pics but may even find rotated and cropped ones.
I'm using Android smartphone. Not sure if I can install plugins there.
https://tineye.com/ is just a site too. You can use your browser to go to it then copy & paste an image URL into it.
I did not know that there are websites that Google does not index.
Google respects ROBOTS.TXT, so if a site doesn't want to be indexed by Google, it can say so.
