Yandex image search is amazingly good, certainly for faces. Bing is also pretty good. Google is the worst out of these three. If a picture of your face is host

Yandex image search is amazingly good, certainly for faces. Bing is also pretty good. Google is the worst out of these three. If a picture of your face is hosted on the internet (for example on your blog) you can do the following experiment. Take a selfie (eg. a picture of your face that doesn't exist yet online) and upload it to Yandex. It will probably identify you.