HTTPS connection attempts from Facebook?

[Ben Scott]

On Mon, Aug 6, 2012 at 10:13 AM, Brian Chabot <brian at datasquire.net> wrote:
> The *only* reason Facebook should be contacting you this way is if you
> have an app set to pull data from there.

  Doesn't need to be an app.  A simple web link to a home IP address,
or name that resolves to same, will do it.  Facebook will try to
retrieve the page title and content for thumbnail/preview purposes.

https://www.facebook.com/externalhit_uatext.php

-- Ben