why facebook is flooding my site?

Question

Every hour and a half Im getting a flood of requests from http://www.facebook.com/externalhit_uatext.php.

I know what theses requests should mean, but this behavior is

Answer 1

Facebook Linter will be visiting your pages periodically to update the OpenGraph data, this isn't something you can control, but there is couple of points you should consider:

• Have correct and appropriate Cache/ETags for your pages.
• Cache the data (at least for anonymous users, which should be the case for Facebook bot).