Subdomain Search
See the list of subdomains (hostnames) observed for a domain.
About Subdomain Search
A subdomain is a name such as blog.example.com or shop.example.com under example.com. This tool lists subdomains found in the web data we have collected. Use it to inventory your own subdomains, discover ones you may have missed or explore how another site is organised. The list is not exhaustive and does not indicate whether each subdomain is currently active.
What this tool shows
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Subdomain list
Subdomains observed for the domain in our link-graph analysis.
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Coverage of observed data
Reflects only what was observed; it does not cover every subdomain that exists.
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Use cases
Useful for inventorying subdomains and discovering ones you didn't know existed.
Frequently asked questions
What is a subdomain?
A name placed in front of a domain to separate sites or services. In blog.example.com, "blog" is the subdomain.
Are all subdomains shown?
No. Only subdomains observed in the link-graph analysis are listed, which is a subset of those that exist.
Can I enter a subdomain?
The hostname you enter is reduced to its registrable domain (for example example.com) before searching.
What can I use it for?
Inventorying your subdomains, discovering ones you may have missed and exploring how a competitor’s site is organised.