What is indexing?
Indexing is the stage where Google analyzes a crawled page and stores it in its index, the database it draws search results from. Only an indexed page can appear in Google Search, and Google does not index every page it crawls.
Cited from the66th.com/glossary/indexing
How indexing works
Google Search works in three stages, according to Google's guide to how Search works: crawling, where Googlebot (Google's crawler) fetches the page; indexing, where Google works out what the page is about; and serving, where it shows the page in results.
During indexing, Google reads the page's text, its title and image alt text (the written description of an image), and its images and video. The same guide says Google groups pages with similar content and picks the most representative one, the canonical, as the page it may show in results.
| Page | Status in Search Console | What it means |
|---|---|---|
| /services/drain-cleaning/ | Indexed | The page can appear in Google results |
| /blog/winter-pipe-tips/ | Crawled - currently not indexed | Google fetched the page and chose not to index it for now |
| /services/water-heaters/ | Discovered - currently not indexed | Google knows the address but has not fetched the page yet |
Why it matters for Google and AI search
Indexing is a requirement for Google's AI answers too. Google's guide to generative AI features says that to be eligible for its generative AI features, such as AI Overviews and AI Mode, a page must be indexed and eligible to be shown in Google Search with a snippet.
Indexing is not guaranteed. Google's guide says not every page it processes will be indexed, and lists common reasons: low-quality content, robots meta rules that disallow indexing, and site designs that make indexing difficult.
What it means for your business
Every page you want buyers to find has to be in the index first. A service page Google has left out brings in no search visitors, whatever it says.
Google Search Console, Google's free tool for site owners, has a Page indexing report that shows which pages Google can find and index and the problems it ran into. Some excluded pages, such as tag archives and thank-you pages, are expected. Excluded service pages, location pages and articles are the ones to fix. Indexing checks are part of our technical SEO services.
Common mistakes
- Launching with a noindex rule left over from the test site. A noindex rule is a line of code that tells search engines not to list a page, and robots meta rules that disallow indexing are one of the issues Google's guide lists. Remove it before launch.
- Publishing pages that repeat other pages on the site. Google groups similar pages and picks one to show, so the copies add nothing to search.
- Publishing a page that no other page on the site links to. Link each new page from related pages, so visitors and Googlebot can reach it.
Related terms
Sources: Google Search Central, In-depth guide to how Google Search works, 18 December 2025; Google Search Console Help, Page indexing report; Google Search Central, Google's guide to optimizing for generative AI features on Google Search, 10 July 2026.