About the TinEye index
Like Google, Yandex, Bing and other search engines, we are constantly crawling the web, adding to our collection of billions of images.
We know that stock photo sites are particularly important to our users and we pay special attention to them. We also pay special attention to curated collections such as Wikipedia, Flickr and NASA, which contain many images in the public domain or with free licensing options. These sites are crawled more frequently than other sites and the images we identify there are specially tagged as “stock” or “collection” images, respectively, to make it easier for you to identify them.
We do not typically add social media images (Facebook, Instagram, Twitter etc.) to our index. Most social media sites prohibit indexing of their users images.