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I hope I did it right by posting this question here. If not, please, let me know it and I will repost it ASAP.

The situation is: I have a single PHP page that records an IP address of every visitor and mails then to me (for corporate reasons, no spying purposes). A colleague I gave this link supposed to share it on Facebook via a private message to the third person.

Exactly after that I received an email with the visitor IP address. Searching it in Whois (because I did not find it in our corporate office IP list) returned me that this IP belongs to Facebook.

Is it possible that FB surfs for every webpage being sent in a private message (i.e. for preview ability), or this link is being visited by a FB user?

I am sorry again if I posted this question in a wrong website.

Max Krizh
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  • possible duplicate of [How does Facebook Sharer select Images?](http://stackoverflow.com/questions/1138460/how-does-facebook-sharer-select-images) – Igy Feb 16 '14 at 17:47

1 Answers1

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When you post a link on Facebook, Facebook automatically scrapes that page to look for a description and image to include with the link. It's likely that the server request that Facebook made to scrape your page is what sent the link to you.

Chase Mcaleese
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