What does Google say about SEO? /
The Crawl & Indexing category compiles all official Google statements regarding how Googlebot discovers, crawls, and indexes web pages. These fundamental processes determine which pages from your website will be included in Google's index and potentially appear in search results. This section addresses critical technical mechanisms: crawl budget management to optimize allocated resources, strategic implementation of robots.txt files to control content access, noindex directives for page exclusion, XML sitemap configuration to enhance discoverability, along with JavaScript rendering challenges and canonical URL implementation. Google's official positions on these topics are essential for SEO professionals as they help avoid technical blocking issues, accelerate new content indexation, and prevent unintentional deindexing. Understanding Google's crawling and indexing processes forms the foundation of any effective search engine optimization strategy, directly impacting organic visibility and SERP performance. Whether troubleshooting indexation problems, optimizing crawl efficiency for large websites, or ensuring proper URL canonicalization, these official guidelines provide authoritative answers to complex technical SEO questions that shape modern web presence and discoverability.
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★★★ Is dynamic rendering really on its way out in SEO?
Server-side rendering and prerendering are unlikely to disappear, as they enable the rapid delivery of HTML content to users and crawlers. Dynamic rendering is temporary and may be abandoned in the lo...
Martin Splitt Mar 16, 2020
★★★ Does JavaScript prerendering still pose indexing risks for SEO?
During prerendering, it is crucial to include as much content as possible to ensure Googlebot has access to all information. This typically means not ignoring elements generated by JavaScript....
John Mueller Mar 16, 2020
★★★ Should you block title modifications via JavaScript to prevent unwanted indexing?
If a chat modifies the page title via JavaScript, it is advised to position the chat behind a user interaction to prevent Google from indexing the modified version of the title....
Martin Splitt Mar 16, 2020
★★★ Should You Launch All Pages of a New Website at Once or Gradually?
John Mueller indicated on Twitter that it was preferable, when launching a site, not to put everything online at once but to gradually grow the number of pages. This helps Google progressively underst...
John Mueller Mar 16, 2020
★★★ Do You Really Need an XML Sitemap to Improve Your SEO Rankings?
In a video on the YouTube channel for webmasters dedicated to XML Sitemaps, Googler Daniel Waisberg explains that these files are primarily interesting in 3 or 4 cases: if the site is very large, if c...
Google Mar 09, 2020
★★★ Do All Your Hreflang URLs Really Need to Be Crawled and Indexed for Google to Recognize Them?
Gary Illyes explained on Reddit that for a site's Hreflang tags to be fully taken into consideration, all URLs referenced by these tags must be crawled and indexed....
Gary Illyes Mar 09, 2020
★★★ Does Google really track all your chained redirects?
Google follows up to 5 redirects at a time during a crawl session. It's best to limit redirect chains to speed up access to your content....
John Mueller Mar 06, 2020
★★★ Does hreflang really prevent Google from merging your international versions?
In cases of similar content, Google can merge versions for indexing, even with hreflang. Ensure that the pages are sufficiently different to avoid merging and display a message suggesting the correct ...
John Mueller Mar 06, 2020
★★★ Should you really ditch m-dot sites for responsive design?
It is recommended to switch to responsive design rather than maintaining separate m-dot sites, even though we still support the latter with mobile-first indexing....
John Mueller Mar 06, 2020
★★★ Is it really enough to delete a sitemap in Search Console to remove it from Google?
Removing a sitemap from Search Console does not delete the sitemap from Google's servers. To make sure Google stops preserving it, you need to remove it from your site and return a 404 code....
Google Mar 04, 2020
★★★ Do you really need an XML sitemap for all your websites?
Well-structured small sites often do not need sitemaps, as Googlebot can discover their content through effective interlinking of pages....
Google Mar 04, 2020
★★ Do you really need to split your sitemaps into multiple files?
Sitemap files have limits regarding the number of URLs and maximum size. If necessary, you can create multiple sitemap files and submit them together with an index file....
Google Mar 04, 2020
★★★ Are XML sitemaps really essential for Google's crawling?
A sitemap can help Google discover and prioritize the pages of your site, especially if your site is very large, contains isolated pages, or if its content changes rapidly, like news sites....
Google Mar 04, 2020
★★★ How can you permanently delete a URL from Google's index without leaving a trace?
For Google to stop indexing a URL, it must return a 404 code or be blocked via a robots.txt file. For complete removal from the index, use the noindex directive or require HTTP authentication....
Google Mar 04, 2020
★★ Should you really automate the generation of your XML sitemaps?
It is recommended to automatically generate sitemaps through the system managing your site, such as with WordPress plugins or Drupal extensions, rather than creating them manually....
Google Mar 04, 2020
★★★ Should you really hide navigation links on an e-commerce site?
Rather than hiding links or using only JavaScript techniques to manage extensive catalogs, it's advisable to make some content accessible via 'rel=nofollow' tags or canonical tags, rather than simply ...
John Mueller Feb 21, 2020
★★★ Why does Google crawl your site less after an algorithm update?
Crawl frequency may vary after algorithmic changes if the site is perceived as less relevant, or if the site becomes slower or returns server errors....
John Mueller Feb 21, 2020
★★★ Should you remove hreflang from noindex or redirecting pages?
When hreflang code is applied to noindex or redirecting pages, Google ignores these specific pages in the hreflang linkage....
John Mueller Feb 21, 2020
★★★ Does Googlebot really crawl millions of pages on very large sites?
There is no strict limit on the number of pages that Googlebot will crawl on a site. If a site is recognized as important, Google may crawl up to millions of pages, but this behavior can vary based on...
John Mueller Feb 21, 2020
★★★ Can you really remove links from search results without affecting the index?
The tool to suggest outdated links in the new Search Console allows you to temporarily remove pages from search results, but not from the index at all. For a permanent removal, you must use a 404 erro...
John Mueller Feb 21, 2020
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