Wordpress address URL keeps dropping the www

My Wordpress Address (URL) in general settings keeps losing the www from the URL - I type in http://www.domain.com and it saves and works fine.

Next time I go in the address has changed to http://domain.com. So again I change it, I get logged out and I log back in and it looks fine until next time and it has changed again.

This is the only setting which changes (site address keeps the www) and I have checked my htaccess and cannot see anything untoward and there are no parked domains etc - any idea what could be causing this?

Most of the time it doesn't cause any issues but sometimes when I visit the site it defaults to the non www version which could be detrimental to SEO as well as it affects my SSL for some secure pages as I only have the SSL for www.domain.com so I would like to fix it if I can.

Topic urls options wp-admin Wordpress

Category Web

1
answered at

You could possibly set the URL in your wp-config.php, this will override the URL stored in the database (the one set in general settings):

// ** Home- und Site-URL ** //
define( 'WP_HOME', 'http://www.example.com' );
define( 'WP_SITEURL', 'http://www.example.com' );

So this should help to keep the www in your URL, but of course it doesn’t solve the strange behaviour itself. One thing I could think of: Can you check if update_option( 'siteurl', 'http://example.com' ); is set anywhere? Typically this is set in functions.php and is used for changing the URL without having access to the backend.

1
answered at

Ensure that you haven't defined it in your wp-config.php

http://codex.wordpress.org/Changing_The_Site_URL#Edit_wp-config.php

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