The difference with WP_HOME and WP_SITEURL in WordPress


A brief explanation on the difference between WP_HOME and WP_SITEURL in WordPress

If you’ve done any development work with WordPress then you’ve probably noticed two similar looking rows in the database. Specifically WP_HOME and WP_SITEURL.

These two have always confused me.

To set the URL of your site you need to use the WP_HOME constant, not the WP_SITEURL constant.

The WP_SITEURL constant does not change your site’s URL.


The official description of what WP_SITEURL does is “the address where your WordPress core files reside.” This is also confusing because it’s a URL, not a directory.

Don’t blame me for this, I’m just the messenger imparting the information. I don’t make the rules!

Setting WP_HOME and WP_SITEURL overrides the home and siteurl entries in the wp_options database table. So that, at least, makes sense.

// NOTE: These must not have trailing slashes
define( 'WP_HOME', '' );
define( 'WP_SITEURL', '` );

The WP_SITEURL setting can also be used when you have moved your core WordPress files to a different directory.

One final thing to note is that when moving sites, these aren’t the only things you have to change. A full database search-and-replace for the URL strings are recommended.

Hopefully, this explanation has helped to show the difference between WP_HOME and WP_SITEURL in WordPress.

If you want to learn more, I recommend this blog post on the entire guide to the wp-config.php file –

If you need any help with your own website, please get in touch.