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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★★★ Are backlinks still a major ranking factor, or is Google bluffing?
Inbound links are still important for SEO, but Google emphasizes the importance of quality content and relevance over the pure quantity of inbound links....
Google Apr 03, 2018
★★★ Is it really necessary to redirect all your URLs when changing your CMS?
When changing a URL structure, such as when switching CMS, it is crucial to redirect the old URLs to the new ones. It takes time for Google to reindex, so it is better to make these changes when your ...
John Mueller Mar 28, 2018
★★★ Could different internal links for mobile and desktop hurt your mobile-first indexing?
For mobile-first indexing, a site with a different internal link structure between mobile and desktop can be affected if these links do not allow for proper exploration. A responsive design, even with...
John Mueller Mar 27, 2018
★★★ Is it true that mobile-first indexing is being rolled out to all sites?
The rollout of mobile-first indexing began after the official Google blog post. Some sites have already switched to this mobile-first indexing, and a new series of sites is in transition this week. A ...
John Mueller Mar 27, 2018
★★★ Is it true that Googlebot always respects your crawl restrictions in robots.txt?
Googlebot should not crawl areas blocked by the robots.txt file unless the file has been recently modified and not yet recrawled to update its instructions....
John Mueller Mar 27, 2018
★★★ Should you really rely on the manual indexing tool in Search Console?
Many rely on the manual indexing tool in Search Console, which is not necessary if your site is properly configured. Automatic methods should be enough for page indexing....
John Mueller Mar 27, 2018
★★ How Long Does It Really Take to See Results After Cleaning Up Low-Quality Content?
John Mueller explained during a hangout that improving overall quality or removing low-quality content from a site could have an impact (positions/traffic) sometimes only after 6 months, the time it t...
John Mueller Mar 26, 2018
★★★ Do 404 errors really hurt your site's SEO?
404 errors for pages you do not wish to index do not negatively impact the rest of your site in search results. Use Search Console to prioritize crawl errors and address those that are most relevant....
John Mueller Mar 16, 2018
★★★ Should you really stop using Fetch and Submit to get your pages indexed?
Tools like 'Fetch and Submit' for indexing should only be used for critical pages that Google has never seen. Regular updates should be handled through organic methods like sitemaps....
John Mueller Mar 09, 2018
★★★ Are sitemaps truly essential for enhancing your indexing?
Google recommends using sitemap files to regularly inform search engines of new pages and updates on your site, particularly if you frequently add new content....
John Mueller Mar 09, 2018
★★★ Does hidden content on mobile finally matter as much as visible content for Google?
With mobile-first indexing, Google will treat hidden content on the page loaded by default the same way it treats visible content, given the display limitations on mobile....
John Mueller Mar 09, 2018
★★★ Can a slow server really hinder Google’s crawling of your site?
Slow server response times can reduce Google's crawl frequency to prevent overwhelming servers....
John Mueller Mar 08, 2018
★★★ Should you choose 301, 404, or 410 redirects during a relaunch to protect your SEO?
During a relaunch, it is advisable to use 301 redirects to preserve SEO signals. The differences between 404 and 410 are minor, but 410 can be slightly faster for deindexing....
John Mueller Mar 08, 2018
★★★ Should you really avoid using noindex in your A/B tests to prevent accidental deindexing?
When conducting A/B tests, avoid using noindex on URLs shared by both versions to prevent accidental deindexing....
John Mueller Mar 08, 2018
★★★ Should you really deindex your internal search pages?
Mueller suggests not indexing internal search results to avoid technical issues. Using 'rel=canonical' is recommended for managing URLs with parameters....
John Mueller Mar 08, 2018
★★★ Is it really necessary to create a separate sitemap for each subdomain?
Each subdomain should have its own sitemap, and it is recommended to link these sitemaps via the robots.txt file for proper indexing....
John Mueller Mar 08, 2018
★★★ Does Google really speed up its crawl after massive redirects?
Google adjusts its crawl speed when it detects significant structural changes, such as massive redirects, without requiring special practices for old URLs....
John Mueller Mar 08, 2018
★★★ How can you accurately measure the number of indexed pages on your site?
There are three main ways to find out the number of indexed pages: by using a site: query in Google Search, by checking the indexing status report in Search Console, and by reviewing the number of ind...
John Mueller Mar 07, 2018
★★★ Why does the number of indexed pages vary between Google.com and Search Console?
The number of indexed pages seen on Google.com may differ from that in Search Console due to different calculation methods. Results on Google Search are rough estimates optimized for speed, not for ac...
John Mueller Mar 07, 2018
★★★ Does hreflang really prevent multilingual content duplication in Google's index?
For pages in different languages containing the same content, correctly using hreflang tags helps to display each targeted version to the right audience without duplication in the index....
John Mueller Mar 06, 2018
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