: Why Facebook profiles are Google-searchable? Facebook has around 1B user profiles. They can be found by searching in Google. However, I don't think these profiles are linked from anywhere, so

@Hamaas447

If you think of all of the web sites where you can connect your Facebook account, that also have public profiles (think forums etc.). Many of these will link to the user's Facebook account, so Googlebot can crawl these simply by following links. There are also people like me who link to my Facebook profile from my own web site.

And then, if you visit a Facebook profile whilst logged out, you'll see that it links to other profiles. So Google should be able to crawl large parts of Facebook like it would any other web site.

As noted in one of the other responses, you can opt out of having your profile indexed if you so wish, but it's on by default (I think) for those aged 18+.

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@Harper822

Contrary to what you suggest, profiles are linked to. Go to the Facebook homepage. At the bottom, you can see links to "People", "Pages", "Places", "Apps" and more. If you click on "People", you can see a full directory that's crawlable. As the disclaimer on that page notes, "This only includes people who have Public Search Listings available on Facebook."

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@Sent6035632

Go to: facebook.com/settings?tab=privacy

In the last option: Who can look me up?

You can see: Do you want other search engines to link to your timeline?
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Facebook profiles can be Google-searchable just if you are +18
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