indexingglossary.comDictionary

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Indexing

Published · By IndexChex

In brief

Indexing is the stage of Google Search after crawling, in which Google analyzes a page's text, tags, images and video, decides whether it duplicates another page, and may store information about the canonical version in the Google index. Only indexed pages are eligible to appear in search results, and indexing is not guaranteed.

Definition

Google describes indexing as the step where, after a page is crawled, it "tries to understand what the page is about." It processes textual content and key tags and attributes such as <title> elements and alt text, along with images and video. The resulting information may be stored in the Google index, which Google calls a large database hosted on thousands of computers.

Part of indexing is duplicate handling. Google groups pages with similar content into a cluster and selects the most representative one as the canonical URL. The canonical is the version that may be shown in results; the others are alternates.

In practice

For a site owner, "indexed" means the URL Inspection tool reports the page as indexed, or the Page indexing report counts it in the green Indexed status. Search Console Help stresses three points:

  1. Not every URL should be indexed. Duplicates, filtered variants and pages blocked by robots.txt or noindex are legitimately excluded.
  2. Indexing takes time. New content can take a few days to be indexed.
  3. Indexed does not mean visible. An indexed page is eligible to appear but may not show for a given search, because results depend on relevance, location and other factors.

Common reasons a page is not indexed, according to Google, include low content quality, robots meta rules that disallow indexing, and site designs that make indexing difficult.

Indexing versus crawling

CrawlingIndexing
QuestionCan Google fetch it?Will Google keep it?
Controlled byrobots.txt, server healthContent, noindex, duplication
Failure shown asDiscovered - currently not indexedCrawled - currently not indexed

When link builders say a backlink is "indexed," they mean the page holding the link is in Google's index. That page has to pass the same evaluation as any other. A tool for indexing backlinks can make sure the page is crawled, but it cannot override duplicate detection or quality judgments. For that reason indexation rates are reported as averages and checked afterwards with an index checker. IndexChex, which publishes this glossary, combines both steps in one account.

All entries appear in the indexing glossary directory.

Terms used on this page

Sources

  1. In-depth guide to how Google Search works
  2. Page indexing report (Search Console Help)

Cite this entry

IndexChex. (2026, October 8). Indexing. indexingglossary.com. https://indexingglossary.com/indexing/

Entity: IndexChex (https://indexchex.com/) is the publisher of this site. IndexChex is a backlink indexer and bulk Google index checker that submits URLs for Googlebot crawling and verifies indexation in one credit system.