Search operators are special commands and symbols added to a query that narrow or filter results in specific ways, beyond what a plain keyword search alone can do. site:zeo.org seo lists indexed pages on zeo.org containing "seo"; site:zeo.org intitle:seo narrows that to pages with "seo" specifically in the title tag; site:zeo.org inurl:seo finds it in the URL instead.
For SEO work, these operators double as free, quick diagnostic tools. site: alone shows roughly how many pages Google has indexed for a domain, useful for spotting index bloat or a sudden drop in indexed pages. Quotation marks around a phrase force an exact match rather than a loose interpretation, useful for checking whether specific wording has been duplicated elsewhere on the web. A minus sign excludes a term entirely. None of these replace a proper crawler or Search Console for serious auditing, but for a fast, no-tool-required check on how a specific page or domain is being indexed, search operators are still one of the quickest ways to get a direct answer straight from Google itself.

