More in detail, for Apache 2.4, this override in blacklist-user-agents.conf can be very useful:BrowserMatchNoCase "meta-externalagent" !good_botBrowserMatchNoCase "developers.facebook.com" !good_botBrowserMatchNoCase "facebookexternalhit" !good_botBrowserMatchNoCase "facebookplatform" !good_botBrowserMatchNoCase "meta-externalagent" bad_botBrowserMatchNoCase "developers.facebook.com" bad_botBrowserMatchNoCase "facebookexternalhit" bad_botBrowserMatchNoCase "facebookplatform" bad_bot