Thank goodness for mod_rewrite, which makes blocking/redirecting traffic on basic things like headers pretty easy. https://www.usenix.org.uk/content/rewritemap

Thank goodness for mod_rewrite, which makes blocking/redirecting traffic on basic things like headers pretty easy. https://www.usenix.org.uk/content/rewritemap.html https://www.usenix.org.uk/content/rewritemap.html You could of course block upstream by IP, but if you want to send the traffic away from a CPU heavy dynamic page to something static that 2xx's or 301's to https://developers.facebook.com/docs/sharing/webmasters/crawler/ https://developers.facebook.com/docs/sharing/webmasters/craw... then this could be the answer.