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title, intro, redirect_from, product, versions
| title | intro | redirect_from | product | versions | ||||||
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| About custom domains and GitHub Pages | {{ site.data.variables.product.prodname_pages }} supports using custom domains, or changing the root of your site's URL from the default, like `octocat.github.io`, to any domain you own. |
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{{ site.data.reusables.gated-features.pages }} |
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Supported custom domains
{{ site.data.variables.product.prodname_pages }} works with two types of domains: subdomains and apex domains. For a list of unsupported custom domains, see "Troubleshooting custom domains and {{ site.data.variables.product.prodname_pages }}."
| Supported custom domain type | Example |
|---|---|
www subdomain |
www.example.com |
| Custom subdomain | blog.example.com |
| Apex domain | example.com |
You can set up either or both types of custom domains for your site. We recommend always using a www subdomain, even if you also use an apex domain. For more information, see "Using an apex domain for your {{ site.data.variables.product.prodname_pages }} site."
After you configure a custom domain for a user or organization site, the custom domain will replace the <user>.github.io or <organization>.github.io portion of the URL for any project sites owned by the account that do not have a custom domain configured. For example, if the custom domain for your user site is www.octocat.com, and you have a project site with no custom domain configured that is published from a repository called octo-project, the {{ site.data.variables.product.prodname_pages }} site for that repository will be available at www.octocat.com/octo-project.
Using a subdomain for your {{ site.data.variables.product.prodname_pages }} site
A subdomain is the part of a URL before the root domain. You can configure your subdomain as www or as a distinct section of your site, like blog.example.com.
Subdomains are configured with a CNAME record through your DNS provider. For more information, see "Managing a custom domain for your {{ site.data.variables.product.prodname_pages }} site."
www subdomains
A www subdomain is the most commonly used type of subdomain. For example, www.example.com includes a www subdomain.
www subdomains are the most stable type of custom domain because www subdomains are not affected by changes to the IP addresses of {{ site.data.variables.product.product_name }}'s servers. Your site will also load faster because Denial of Service (DoS) attack protection can be implemented more efficiently.
Custom subdomains
A custom subdomain is a type of subdomain that doesn't use the standard www subdomain. Custom subdomains are mostly used when you want two distinct sections of your site. For example, you can create a site called blog.example.com and customize that section independently from www.example.com.
Using an apex domain for your {{ site.data.variables.product.prodname_pages }} site
An apex domain is a custom domain that does not contain a subdomain, such as example.com. Apex domains are also known as base, bare, naked, root apex, or zone apex domains.
An apex domain is configured with an A, ALIAS, or ANAME record through your DNS provider. For more information, see "Managing a custom domain for your {{ site.data.variables.product.prodname_pages }} site."
{{ site.data.reusables.pages.www-and-apex-domain-recommendation }}
Updating custom domains when your {{ site.data.variables.product.prodname_pages }} site is disabled
If your {{ site.data.variables.product.prodname_pages }} site is disabled but has a custom domain set up, you should immediately update or remove your DNS records with your DNS provider to avoid the risk of a domain takeover. Having a custom domain configured with your DNS provider while your site is disabled could result in someone else hosting a site on one of your subdomains. For more information, see "Managing a custom domain for your {{ site.data.variables.product.prodname_pages }} site."
There are a couple of reasons your site might be automatically disabled.
- If you downgrade from {{ site.data.variables.product.prodname_pro }} to {{ site.data.variables.product.prodname_free_user }}, any {{ site.data.variables.product.prodname_pages }} sites that are currently published from private repositories in your account will be unpublished. For more information, see "Downgrading your {{ site.data.variables.product.prodname_dotcom }} billing plan."
- If you transfer a private repository to a personal account that is using {{ site.data.variables.product.prodname_free_user }}, the repository will lose access to the {{ site.data.variables.product.prodname_pages }} feature, and the currently published {{ site.data.variables.product.prodname_pages }} site will be unpublished. For more information, see "Transferring a repository."