MULTIPLE DOMAIN IS NOW BEING MAINTAINED BY goINPUT. THE SOURCE CODE NOW LIVES IN WORDPRESS' SUBVERSION. MORE DETAILS CAN BE FOUND ON THE OFFICIAL PLUGIN PAGE.

Multiple Domain allows you having more than one domain in a single WordPress installation. This plugin doesn't support more than one theme or advanced customizations for each domain. It's only intended to enable constant navigation under many domains. For a more complex setup, there is WordPress Multisite (MU).

When there is more than one domain set in your host, all links and resources will point to the default domain. This is the default WordPress behavior. With Multiple Domain installed and properly configured, it'll update all link on the fly. This way, the user navigation will be end-to-end under the same domain.

You can also set an optional base URL. If you want only a set of URL's available under a given domain, you can use this restriction.

Additionally, a language can be set for each domain. The language will be used to add <link> tags with hreflang attribute to document head. This is for SEO purposes.

Check the plugin page at WordPress.org: https://wordpress.org/plugins/multiple-domain/

Follow the steps below to install the plugin:

1. Upload the plugin files to the /wp-content/plugins/multiple-domain directory, or install the plugin through the WordPress plugins screen directly.
2. Activate the plugin through the 'Plugins' screen in WordPress.
3. Use the Settings -> General screen to configure your additional domains.

Does this plugin set extra domains within my host?

No. You have to set additional domains, DNS, and everything else to use this plugin.

Can I have a different theme/content/plugins for each domain?

Nope. If you want a complex set up like this, you may be interested in WordPress Multisite. It's delivered with every WordPress installation since 3.0, you can find more info here: https://codex.wordpress.org/Create_A_Network.

There is a way to add domain based logic to my themes?

Absolutely. You can use the MULTIPLE_DOMAIN_DOMAIN and MULTIPLE_DOMAIN_ORIGINAL_DOMAIN constants to get the current and original domains. Just notice that since the value of the first one is checked against plugin settings, it may not reflect the actual domain in HTTP_HOST element from $_SERVER or user's browser. They also may include the host port when it's different than 80 (default HTTP port) or 443 (default HTTPS port).

Notice: in prior versions these constants were wrongly prefixed with MULTPLE_, missing the "I". The old constants are now deprecated. They still available for backcompat but will be removed in future releases.

Can I create a custom access restriction logic for each domain?

Yes. You can use the multiple_domain_redirect action and multiple_domain_redirect_disable filter do that. Please check https://github.com/straube/multiple-domain/issues/2 for an example on how to use both.

Can I get the language associated with the current domain?

Yes. You can use the MULTIPLE_DOMAIN_DOMAIN_LANG constant to get the language associated with the current domain. Keep in mind the value in this constant doesn't necessarily reflect the actual user language or locale. This is just the language set in the plugin config. Also notice the language may be null.

Notice: in prior versions these constants were wrongly prefixed with MULTPLE_, missing the "I". The old constants are now deprecated. They still available for backcompat but will be removed in future releases.

Can I show the current domain in the content of posts or pages?

Yes. There is a shortcode available for that. Just add [multiple_domain] to the post/page and it'll be replaced by the current domain when viewing the content. You can write things like "Welcome to [multiple_domain]!", which would be rendered as "Welcome to mydomain.com!".

What domains should I add to the plugin setup?

Any domain you're site is served from must be added to the plugin configuration. Even www variations and the original domain where your WordPress was installed in must be added. You'll probably see some unexpected output when accessing the site from a non-mapped domain.

Can I disable hreflang tags output even for the original domain?

Yes. You may notice that even if you don't set a language for any domain, you still get a default hreflang tag in your page head. To disable this behavior, follow the instructions from https://github.com/straube/multiple-domain/issues/51.

I locked myself out, and what am I doing now?

Under certain circumstances, in the case of a wrong configuration, you may not be able to log in to the admin area and your page will be redirected. In this case, there are two ways to solve this.

1. Delete the plugin directory wp-content/plugins/multiple-domain. You should be able to do that from the hosting panel, from an FTP client, or via SSH. The downside of this technique is that it won’t be possible to install the plugin again since the configuration will still be in the database.
2. Remove the plugin configuration from the database using the following SQL query DELETE FROM {YOUR-PREFIX}_options WHERE option_name LIKE 'multiple-domain-%'; (Remember to replace the prefix from your own table name). This can be done from the hosting panel when PHPMyAdmin is available or using a MySQL client.

Refer to CHANGELOG.md for release notes and changes.

Contributors: GustavoStraube, cyberaleks, jffaria
Tags: multiple, domains, redirect
Requires at least: 4.0
Tested up to: 5.2.4
Stable tag: trunk
License: GPLv2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html

Want to help? Please check our contribution guide.