I just checked my visitors log and discovered that there are some bots been tracked.
- Mozilla/5.0 (Windows NT 6.1; rv:6.0) Gecko/20110814 Firefox/6.0 Google (+https://developers.google.com/+/web/snip
pet/) - facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)