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What Is WordPress Multisite? Pros and Cons
Quick answer
WordPress Multisite is a core feature that runs a network of many sites from one WordPress installation, sharing core files, plugins, themes and user accounts while each site keeps its own content and settings. It suits schools, chains and multilingual brands under one team; unrelated client sites are safer on separate installs.
For site owners, IT teams and agencies deciding whether one WordPress network or several separate installs suits their group of sites.
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- 14 Nov 2026
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Last editorial update: 14 November 2026. Prices follow the dated sources on this page; checkout confirms current charges.
What is WordPress Multisite?
WordPress Multisite is a feature built into WordPress core that turns one installation into a network of many sites, all sharing the same core files, plugins, themes and user accounts while each site keeps its own content, media and settings. It ships switched off; an administrator enables it in wp-config.php and then runs Network Setup.
Think of it as one building with many flats. The structure, wiring and front desk are shared; each flat is furnished separately. A school can run a site per department, or a retail chain a site per outlet, and update WordPress once for all of them.
How does Multisite store each site's data?
Multisite keeps every site in one database: network-wide tables hold users and the site list, while each site gets its own set of content tables numbered by site ID. Uploads follow the same pattern, so files for site 3 live under wp-content/uploads/sites/3/.
| Scope | Tables | What they hold |
|---|---|---|
| Network-wide | wp_users, wp_usermeta | One account list for every site |
| Network-wide | wp_blogs, wp_site, wp_sitemeta | The list of sites and network settings |
| Network-wide | wp_signups, wp_registration_log | New user and site registrations |
| Main site | wp_posts, wp_options and the rest | Content of site 1 |
| Each extra site | wp_2_posts, wp_2_options, wp_3_posts… | Content and settings of that site only |
Because everything shares one database, one backup captures the whole network — and one corrupted table or failed restore affects it all. The WordPress database guide explains the standard tables in more detail.
Subdomains, subdirectories or mapped domains: how are Multisite addresses chosen?
A Multisite network uses either subdomains (shop.example.in) or subdirectories (example.in/shop/) for its sites, chosen once during Network Setup, and any site can additionally be mapped to its own full domain. Changing between subdomain and subdirectory later is effectively a migration.
- Subdirectories — no DNS work. On the main site, post permalinks gain a
/blog/prefix to avoid clashes, and WordPress offers only subdomains on an install older than about a month. - Subdomains — each site has its own hostname. Needs a wildcard DNS record (
*.example.in) and an SSL certificate that covers every subdomain. - Domain mapping — native since WordPress 4.5: set a subsite's address to brand.in and point that domain at the same hosting account.
The subdomain vs subdirectory guide covers the SEO side of that choice.
What can a Super Admin do that a Site Admin cannot?
The Super Admin controls the whole network — creating sites, installing plugins and themes, managing all users — while a Site Admin manages only the content and users of one site. A single user account can hold different roles on different sites in the same network.
| Action | Super Admin | Site Admin |
|---|---|---|
| Create or delete sites | Yes | No |
| Install plugins and themes | Yes | No |
| Network-activate a plugin | Yes | No |
| Activate an installed plugin on own site | Yes | Only if the plugins menu is enabled in Network Settings |
| Choose a theme | Enables themes for the network | Picks from the enabled set |
| Edit posts, pages and media | On any site | On own site |
Network-activated plugins run on every site, so keep that set to essentials such as security, cache and backup. One incompatible plugin activated network-wide breaks every site at once.
When should you use WordPress Multisite, and when not?
Use Multisite when many sites share one owner, one team and one set of rules; avoid it when sites belong to different owners or need independent backups, scaling or a clean exit.
Good fit: chains and franchises
A site per outlet or city with identical branding and centrally approved plugins.
Good fit: one site per language
Hindi and English versions run as sibling sites; see multilingual WordPress in Hindi.
Poor fit: agency client sites
One client's plugin, breach or traffic spike reaches every other client, and extracting a leaving client is laborious.
Poor fit: unrelated stores
Separate WooCommerce shops need separate backups, payment settings and resource limits.
For agencies, separate installs managed with automation usually cost a little more effort and far less risk; a reseller hosting account gives each client its own cPanel.
What hosting does a Multisite network need?
A Multisite network needs hosting that allows several domains or wildcard subdomains on one account, enough PHP memory and database capacity for all sites combined, and an SSL setup covering every address.
- Multiple domains: mapped domains need a plan that accepts add-on domains. WebJi®'s Webji Scale plan includes unlimited domains at ₹699 a month before 18% GST.
- Wildcard SSL: a subdomain network needs a certificate for
*.example.in. Let's Encrypt can issue one through DNS validation, or a Sectigo Positive SSL Wildcard costs ₹7,500 a year at WebJi®. - Headroom: every site shares one PHP pool and database; large networks belong on a VPS or cloud server.
Plans and limits are on WordPress hosting. The click-by-click enablement, including the WP_ALLOW_MULTISITE constant and Network Setup, is in how to set up WordPress Multisite; try it on a staging copy first.
FAQ
Frequently asked questions
Can one site be moved out of a Multisite network?
Yes, but it takes work. You export that site's content, copy its uploads folder, recreate users and settings in a new install and rewrite URLs. Migration plugins with multisite support can automate part of it. Plan the exit before the network grows.
Is Multisite slower than separate WordPress installs?
Not inherently, since each request loads one site. Problems appear when the combined traffic of every site exceeds the shared PHP workers or database, or a heavy plugin is network-activated. Object caching and adequate server resources keep a large network responsive.
Does WooCommerce work on Multisite?
Yes. WooCommerce can be activated per site, and each site keeps its own products, orders and payment settings. Products and carts are not shared between sites by default; sharing them needs extra plugins.
Can I turn Multisite off again?
Only cleanly if the network still has just the main site. Once extra sites exist, you must move or delete them, then remove the multisite constants from wp-config.php and the rewrite rules from .htaccess. Keep a full backup before trying.
Last editorial update: 14 November 2026. Prices follow the dated sources on this page; checkout confirms current charges.
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