robots.txt directives preventing Googlebot's access to the pageĪfter a page is crawled, Google tries to understand what the page is about.Problems with the server handling the site.Rendering is important because websites often rely on JavaScript to bring content to the page,Īnd without rendering Google might not see that content.Ĭrawling depends on whether Google's crawlers can access the site. Using a recent version of Chrome, similar to how your browser renders pages you visit. Non-www ( ) version of the domain name, even though the content isĭuring the crawl, Google renders the page and Pages may be duplicates of previously crawled pages.įor example, many sites are accessible through the and Site owner, other pages may not be accessible without logging in to the site, and other However, Googlebot doesn't crawl all the pages it discovered. This mechanism is based on the responses of the site (for example, Which sites to crawl, how often, and how many pages to fetch from each site.Īre also programmed such that they try not to crawl the site too fast to avoid overloading it. Googlebot uses an algorithmic process to determine We use a huge set of computers to crawl billions of pages on the web. Once Google discovers a page's URL, it may visit (or "crawl") the page to find out what's on Still other pages are discovered when you submit a list of pages (a Known page to a new page: for example, a hub page, such as a category page, links to a newīlog post. Other pages are discovered when Google follows a link from a There isn't a central registry ofĪll web pages, so Google must constantly look for new and updated pages and add them to its The first stage is finding out what pages exist on the web. Google, Google returns information that's relevant to the user's query. Serving search results: When a user searches on.Video files on the page, and stores the information in the Google index, which is a large Indexing: Google analyzes the text, images, and.Crawling: Google downloads text, images, and videosįrom pages it found on the internet with automated programs called crawlers.Google Search works in three stages, and not all pages make it through each stage: Introducing the three stages of Google Search Google's guidelines and policies for site owners. Google doesn't guarantee that it will crawl, index, or serve your page, even if your page Which explains how Search works from a searcher's perspective.īefore we get into the details of how Search works, it's important to note that Google doesn'tĪccept payment to crawl a site more frequently, or rank it higher. Looking for something less technical? Check out our
Having this base knowledge can help you fixĬrawling issues, get your pages indexed, and learn how to optimize how your site appears in Search works in the context of your website. Pages listed in our results aren't manually submitted for inclusion, but are found and addedĪutomatically when our web crawlers explore the web.
Google Search is a fully-automated search engine that uses software known as web crawlers thatĮxplore the web regularly to find pages to add to our index. In-depth guide to how Google Search works