How to change your WordPress site URL

WordPress stores its own address in two settings: WordPress Address (siteurl) and Site Address (home). Get them wrong and you can be redirected away from your own site.

Method 1: in settings

If you can log in: Settings → General, change both addresses, save.

Method 2: wp-config.php (when locked out)

1. Open System Info & Files › then File Manager and edit wp-config.php in the WordPress folder.
2. Above the line /* That's all, stop editing! */, add:

define('WP_HOME', 'https://yourdomain.co.uk');
define('WP_SITEURL', 'https://yourdomain.co.uk');

1. Save and reload the site.

These override the database values. Once you can log in, you can fix the settings and remove the lines, or leave them in place.

Method 3: phpMyAdmin

1. Open phpMyAdmin and your WordPress database.
2. Open wp_options.
3. Edit the siteurl and home rows.

After changing domain or moving to HTTPS

Posts, image links and some plugin settings still contain the old address. Use a search-and-replace tool designed for WordPress, which correctly updates serialised data, to replace the old URL with the new one. A plain SQL REPLACE can corrupt serialised settings.

Take a backup first. How to back up WordPress