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Overview of Google search operators

Google Search supports several search operators that you can use to refine or target your searches. The following search operators may also be useful for debugging your website.

For example, the site: search operator may be useful to monitor comment spam on your website, and the image search imagesize: operator may be helpful to find images on your site that are small.

Search operators
site:

Find search results from a particular domain, URL, or URL prefix. For example:

site:https://www.google.com/
cache:

Find the cached version of a page. For example:

cache:https://www.google.com/
related:

Find pages that are related to a specific URL. For example:

related:https://www.google.com/

Google determines the relatedness of URLs by comparing multiple factors, such as the entities mentioned on the page and the general category of the page.

src:

Find pages that reference a particular image URL. For example:

src:https://www.example.com/images/peanut-butter.png
imagesize:

Find pages that contain images of a specific dimension. For example:

imagesize:1200x800