How To: Disable/Block External HTTP Requests In WordPress

Posted by Artem Russakovskii on November 16th, 2011 in PHP, Wordpress

One thing that's been continuously annoying me when doing WordPress development on the go is when something somewhere inside WordPress decides to send requests to external urls when I don't even have Internet connection or it's slow and flaky (tethering, slow Wi-Fi, etc). This results in random lag when loading pages, especially if I haven't opened my dev WordPress instance for a long time.

Turns out there's an easy and undocumented (other than in code) solution. To block external HTTP requests right in WordPress's core itself, open up wp-config.php and add WP_HTTP_BLOCK_EXTERNAL like so:

define('WP_HTTP_BLOCK_EXTERNAL', true);

Whenever this variable is present, external requests will be ignored, unless you specify your own comma-separated whitelist of domains using WP_ACCESSIBLE_HOSTS like so:…


Updated: October 6th, 2009


Every time I have to deal with svn:externals in SVN, I forget the command line syntax. Every single damn time. Normally, I use SVN GUI clients, such as SmartSVN, which make it very simple to add an svn:externals property. But for command line, it always takes looking at 25 different sites on google, which are all incredibly unhelpful for this question for some reason. Trying "svn help propset" on the command line was bloated and equally useless.

So this time I needed to write it down and make sure everyone who needed help with svn:externals would find exactly what they need here. I hope this page will soon come up on top of all the unhelpful results on …