# Working with subdomains > A subdomain like blog.example.com is grouped under the root domain you added, but you can view and work on it separately with its own pages, schema, and monitoring. No extra domain slot required. *Category: Domains & Subdomains ยท Last updated: 2026-07-07* --- Plenty of sites spread content across subdomains: a blog on blog.example.com, documentation on docs.example.com, a marketing microsite on go.example.com. In SuperSchema you do not add each of these as a separate domain. You add the root domain (example.com) once, and any subdomains SuperSchema finds are grouped under it automatically. They do not count against your plan domain limit, and you can still drill into any one subdomain on its own when you want a focused view. ### How subdomains are grouped under your domain SuperSchema uses the registrable root of a hostname to decide what belongs together. It relies on the public suffix list, which correctly handles multi-part endings like .co.uk, so blog.example.com and www.example.com both resolve to the root example.com. Anything whose root matches a domain you added is folded in under that domain. - A hostname is treated as a subdomain only when it ends in ".yourdomain" (for example anything.example.com under example.com), and is not the root itself. - The www. prefix is stripped everywhere, so www.example.com is treated as the root domain, not a separate subdomain. - Because grouping is by registrable root, you manage one entry for the whole family of hostnames instead of adding each subdomain by hand. > **Note:** Subdomains are discovered, not added manually. There is no "add subdomain" button. A subdomain appears in your domain the moment SuperSchema has data for it from one of the sources below. ### Where subdomains come from SuperSchema builds the list of a domain's subdomains by aggregating across the features you have already used. A subdomain shows up if it appears in any of these, and each source is tagged so you can see why it was found: **scan:** A Site Scan was run against that subdomain. **bot_tracking:** Bot Tracking is active on that subdomain. **schema:** Schema has been generated for pages on that subdomain. **hubspot:** The subdomain is one of the domains associated with a connected HubSpot account. ### Viewing a single subdomain When a domain has at least one subdomain, a switcher appears in the domain's overview stats bar. It is a globe-icon button showing the current host, with a small count of how many subdomains were found. Use it to scope the whole page to one host at a time. 1. Open the domain from Your Domains. 2. Click the host switcher in the stats bar (it shows the root domain by default, with the subdomain count beside it). 3. Pick the root domain (labeled "root") to see everything, or pick a subdomain to focus on just that host. 4. The pages, schema coverage, and monitoring on the page all re-scope to your selection. While a subdomain is selected, the page shows only that host's pages and stats. Switch back to the root at any time to see the full picture across every host under the domain. > **Tip:** A busy subdomain like a blog is often where your most AI-visible content lives. Selecting it in the switcher lets you check its schema coverage and monitoring in isolation, without the root site's pages mixed in. > **Note:** Subdomains share your domain slot but not your per-page limits. Pages on blog.example.com still count toward the generated-page and monitored-page allowances on your plan, the same as pages on the root site. ## Questions this answers - Do I need a separate account or domain slot for my subdomains? - How does SuperSchema decide a subdomain belongs to my domain? - Can I see just my blog subdomain separately from the main site? - Is www treated as a separate subdomain? - Where do subdomains come from in my domain view? - How do I switch between the root domain and a subdomain? - Does generating schema on a subdomain use another domain from my plan? ## Related - https://superschema.ai/docs/adding-and-managing-domains - https://superschema.ai/docs/domain-detail-page - https://superschema.ai/docs/library-management