Domains glossary
# Apex domain
The apex domain, also known as a root, bare, or naked domain, is the yourcustomdomain.com part in the domain www.yourcustomdomain.com.
# Atomic deploy permalink
An atomic deploy permalink is the unique URL for a specific successful deploy. Also called a deploy permalink or permalink. Unlike the other site deploys, the web content at this URL never changes. A new deploy permalink is generated for each successful deploy of your site. For example, 1234abcd12acde000111cdef--yoursitename.netlify.app is an atomic deploy.
# Automatic deploy subdomain
An automatic deploy subdomain is a subdomain that can be customized for all Deploy Previews and/or for all branch deploys. It can use your production site’s primary domain or a different custom domain with additional subdomains and requires Netlify DNS.
# Branch deploy URL
A branch deploy URL is a URL for a branch deploy that uses your production site’s primary domain or a different custom domain with additional subdomains and requires Netlify DNS.
# Branch subdomain
A branch subdomain is a subdomain for a branch deploy that applies your production site’s primary domain to specified branch deploys. It can apply to an individual branch deploy or to all branches besides your production branch and requires Netlify DNS.
# Custom domain
A custom domain is a domain you can assign to a site.
# Deploy Preview URL
A Deploy Preview URL is a URL for a Deploy Preview that uses your production site’s primary domain or a different custom domain with additional subdomains and requires Netlify DNS.
# Domain alias
A domain alias is an additional custom domain assigned to a production site.
# Domain name
A domain name (or domain for short) is the full name used to access a site, such as yoursitename.netlify.app or www.yourcustomdomain.com.
# Domain registrar
A domain registrar (or domain registration service) is a company that lets you register a domain name.
# DNS provider
A DNS provider is a company that maintains the DNS servers that translate a domain name to a destination.
# DNS server
A DNS server (or Name server) is a specialized server that translates domain names into IP addresses.
# DNS zone
A DNS zone is used to provide information about one or more domain names. Each zone contains a list of DNS records with mappings between domain names and IP addresses.
# Netlify DNS
Netlify DNS is Netlify’s managed DNS service.
# Netlify subdomain
A Netlify subdomain is Netlify's term for the default domain with the form [name-of-your-site].netlify.app given to each site.
# Primary domain
A primary domain is Netlify's term for the main custom domain assigned to a production site.
# Production deploy URL
A production deploy is a deploy made to the desiginated production branch. If you haven’t assigned a custom domain for your site, then the production deploy URL will take this form: yoursitename.netlify.app.
# Subdomain
A subdomain is a domain that is part of a larger domain; the only domain that is not also a subdomain is the apex domain. For example, www.yourcustomdomain.com and app.yourcustomdomain.com are subdomains of yourcustomdomain.com.
# Top-level domain
The top-level domain is the last part of the domain name. For example, the .com part in www.yourcustomdomain.com.
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