Search results
Learn about the technology, process, and approach of Google Search, the world's leading search engine. Explore how Search delivers relevant, reliable, and useful information, protects your privacy, and supports creators and publishers.
- Our approach
Ads are how Search remains accessible to everyone. But ads...
- How Search works
How Google Search works. Every time you search, there are...
- Features
The Knowledge Graph is our database of more than five...
- Our history
Since our launch in 1997, Google Search has continued to...
- Detecting Spam
Google invests in systems to ensure that sites don’t rise in...
- Focus on The User
Search isn’t static. We’re constantly improving our systems...
- Search Algorithms
Google’s ranking systems are designed to do just that: sort...
- Our approach
- A Few Notes Before We Get Started
- Introducing The Three Stages of Google Search
- Crawling
- Indexing
- Serving Search Results
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Before we get into the details of how Search works, it's important to note that Google doesn't accept payment to crawl a site more frequently, or rank it higher. If anyone tells you otherwise, they're wrong. Google doesn't guarantee that it will crawl, index, or serve your page, even if your page follows the Google Search Essentials.
Google Search works in three stages, and not all pages make it through each stage: 1. Crawling:Google downloads text, images, and videos from pages it found on the internet with automated programs called crawlers. 2. Indexing:Google analyzes the text, images, and video files on the page, and stores the information in the Google index, which is a la...
The first stage is finding out what pages exist on the web. There isn't a central registry of all web pages, so Google must constantly look for new and updated pages and add them to its list of known pages. This process is called "URL discovery". Some pages are known because Google has already visited them. Other pages are discovered when Google fo...
After a page is crawled, Google tries to understand what the page is about. This stage is called indexing and it includes processing and analyzing the textual content and key content tags and attributes, such as elements and alt attributes, images, videos, and more. During the indexing process, Google determines if a page is a duplicate of ...
When a user enters a query, our machines search the index for matching pages and return the results we believe are the highest quality and most relevant to the user's query. Relevancy is determined by hundreds of factors, which could include information such as the user's location, language, and device (desktop or phone). For example, searching for...
Learn how Google Search finds, analyzes, and ranks web pages using automated programs called crawlers. This guide explains the three stages of Search and how to optimize your site for each stage.
Apr 23, 2024 · Documentation. Search Engine Optimization (SEO) Starter Guide. When you built your website, you likely created it with your users in mind, trying to make it easy for them to find and explore...
Overview. . Our approach. . How Search works. . Organising information. . Ranking results. . Rigorous testing. . Detecting spam. . Features. . Our mission is to organise the world’s information...
Learn how Google Search puts the world's information at your fingertips, from ranking systems to features that show up when you search. Explore articles on topics such as rater guidelines, updates, removals, location, ads and more.
