How to quickly find and export all subdomains indexed by Google
Performing an SEO audit? Contributor Max Prin demonstrates how to find all of a website's indexed subdomains using a simple (and free) Chrome plugin.
An SEO audit is rarely limited to the www (or non-www) version of a website. When looking for potential duplicate content, it’s often important to know how many subdomains exist and, more importantly, how many of them are indexed by Google.
The good old search operators
An easy way to find indexed subdomains is to use search operators.
- Start with “site:” and the root domain.
- One by one, remove each subdomain (including: “www”) from the results with the “-inurl:” operator.
- When there are no more results for Google to return, your query with the search operators should include all subdomains indexed.
However, this technique has its limits.