Could WordPress Multisite Be a Game Changer for You?

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Who Should Use It?

Multisite has quite a lot of benefits to it and can be extremely useful in certain cases while leading to administrative complication in others. So which cases is Multisite best for?

WordPress Multisite is ideal for building a network of sites with analogous functionality; either via plugins, server settings or custom applications. It is also ideal for networks that use a limited number of themes for the whole network vs. enabling members of the network to use custom themes.

If your network has a hugely diverse set of WordPress sites using various plugins, themes and other customizations, WordPress Multisite isn’t the solution you’re looking for.

Popular Sites Using WordPress Multisite from Automattic is the ultimate example of a Multisite Network. It hosts millions of sites and is free to use (premium themes and plugins are an additional cost).

Universities are another good example of organizations that use Multisite Networks. They typically set up multiple sites on the network for various departments within the institution and for internal blogs.

One of the nation’s largest and most respected newspapers uses WordPress Multisite to host its blogs.

One of the nation’s largest and most respected newspapers uses WordPress Multisite to host its blogs.

The New York Times Blogs is another good example. It’s a network of multiple blogs (about 60) that use a single WordPress Multisite installation.

How to Install WordPress Multisite

You only need two things to set up a Multisite Network:

  • You need be an admin and have access to your server’s files; and
  • Have permissions to make changes to the files and to create a directory

No knowledge of code is required.

If you’re looking to activate it on a new installation, you can just delete your data and re-install WordPress.

Multisite can also be installed on your current WordPress installation. However, it does not use the default permalink structure as WordPress needs to be able to assign correct names to sub-directories and sub-domains.

Speaking of which, you need to decide whether you want to create files as sub-domains or sub-directories. This decision cannot be reversed in the future so choose carefully.

  • The sub-domain structure is as follows:,,, etc.
  • The sub-folder structure is as follows:,, etc.

Keep in mind that sub-directories cannot be created on an established site as it could interfere with active or already created URLs.

You can also use domains like,,, etc., but you need to utilize plugins and have some technical knowledge in order to do so.

Let’s walk step-by-step through the installation.

  1. Install WordPress the usual way: download the ZIP file and install it on your server
  2. Locate the wp-config file (in the folder you installed WordPress)
  3. Find the phrase “/* That’s all, stop editing! Happy blogging. */” towards the bottom of the file
  4. Add a new line right above the phrase. Copy and paste the following code on the new line:

/* Multisite */

define( ‘WP_ALLOW_MULTISITE’, true );

You can activate WordPress Multisite within a few clicks and adding one single line of code to your wp-config.php file.

You can activate WordPress Multisite within a few clicks and adding a single line of code to your wp-config.php file.

  1. Save your wp-config.php file and reload the website
  2. Head to the WordPress admin dashboard and go to Tools > Network Setup. You will be asked to choose between sub-domains or sub-directories. (Note: If you choose to use sub-domains, you need to confirm that your web hosting service provider allows sub-domains. They will need to create wild card DNS for your network)
  3. Update the title of your Multisite Network and the email address of the Network admin. You can leave everything as is if no changes need to be made
  4. Click the Install button. WordPress will generate a code to copy into your wp-config.php and .htaccess files
  5. You will be automatically directed to the Network Install screen. Paste the code as instructed
  6. Save the files
  7. Multisite will be successfully installed. You will need to log in again to access your Network Admin Dashboard

Et voila! Your Multisite installation should now function like any standard WordPress site. You can start adding new sites, plugins, themes and other functionality onto the Network.

You can follow the same steps above to convert your existing site into a Multisite Network. The only difference will be that you’ll be forced to use sub-domains if your site has been active for more than one month.

Arnaud, a foodie from Bruges, Belgium, is the editor for the Semper Plugins blog. He also manages the translation teams for All in One SEO Pack (over 58 languages!).

11 comments on “Could WordPress Multisite Be a Game Changer for You?
  1. > < a n n o says:

    Hi there

    it sounds really easy, thanks for the clear steps.

    Is a WP multisite installation possible afterwards, if the existing base installation is already on a sub.domain.xy?

    • Arnaud Broes says:

      I believe this is possible.

    • Do yourself a favor and make sure that you make a full backup of your site and your databases before you start changing things on your site, especially if your site is already indexed on the search engines you have to make sure that you don’t change any URLs because that would generate a lot of 404 errors and that’s killing for your rankings.

      404 errors of URLs you aren’t using anymore should be properly redirected to another related blog post or page permanently with a 301 redirect.

      WordPress makes it super easy to manage all your redirections by installing a plugin which you can download for free from the wordpress repository here:

  2. Ron Charest says:

    Thank you for this excellent article. One question: once this multi-site is activated, and other sites are added, is it possible to continue managing a site “locally” from the local site admin screen?

    • Arnaud Broes says:

      I believe you can only manage your multi-site domain from within one global admin screen.

      • rodinux says:

        I have already two multisite in production. You can manage each site from his own admin dashboard. You have a interface which is dedicated to another role, superadmin from where you can load the extensions, plugins, themes (the admins of each site can not). If you want the users of the others sites to use the themes, you may activate them from this superadmin dashboard. For the plugins, the admins of each site can activate or deactivate them, except if they are activated from the superadmin dashboard… A link with explanations:
        I use an extension call WordPress MU Domain Mapping to to map the blog/site to another domain…

  3. ATRYNA says:

    This article very nice and can help us to manage some of my sites. Thanks for sharing.

  4. Arturo says:

    How do Multisite affect SEO ranking and what’s the best subdomain or subfolder?

    • Search engines such as Google consider sites in subdirectories to be all part of the same site, so is part of and counts towards its SEO. However, sites in subdomains are considered as different sites and do not count towards the SEO of the main site, so is a different site to

  5. sounds all great but I didn’t found the answer to my question. in my case I’ve my website already online for years but a couple weeks ago I found 2 new domains that I want to use but those are not the typical domain names you normally see.

    my main domain is and my new domains are and, I only bought them to make sure those are reserved for me because it looks nice and branded but I don’t know what to do with the new domains and I don’t even know if these domains can be used just as any other domain.

    My problem will be resolved if I knew that I could just point those domains to my main website to a specific page within the wordpress installation or for safety reasons use those domains to point to a folder on the server outside of wordpress.

    Do you have any answers?

  6. rodinux says:

    Yes you may create a multisite, you then create 2 others sites as subdomains like and,
    then using an extension call WordPress MU Domain Mapping to to map the blog/site to another domain. You can redirect each site to another adress with their ID. you need to redirect each site with two redirection on primary for and one secondary for

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