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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★★★ Should you choose between a mobile site and an app for SEO?
Google recommends having a user-friendly mobile site. Apps can be a supplement with app indexing, which is becoming increasingly important, allowing crawling of app content related to web content....
John Mueller Mar 13, 2015
★★★ Why do PageSpeed Insights and the mobile-friendly test provide contradictory results?
The PageSpeed Insights test does not use Googlebot to analyze pages, which can lead to divergent results compared to the mobile-friendly test that uses Googlebot....
Google Mar 12, 2015
★★★ How do manual penalties and technical errors ruin your SEO?
If you see a manual action in the Webmaster Tools, it means Google has taken action due to violations of quality guidelines. Incorrect DNS and redirection errors can harm your site's indexing and rank...
Google Mar 12, 2015
★★ Why does app indexing only benefit users who have already installed the app?
App indexing shows relevant deep results for users who have already installed the indexed application....
Google Mar 12, 2015
★★★ Does duplicate content really harm your Google ranking?
Google removes duplicate content pages from search results and favors unique content by trying to identify a canonical version....
Google Mar 12, 2015
★★★ Is it necessary to update your sitemap with every CSS or JavaScript change?
In a sitemap, the last modified date should primarily be updated when the main content changes, not just for CSS/JS modifications....
John Mueller Mar 10, 2015
★★★ Is Fetch & Render truly enough to validate your JavaScript pages?
Fetch & Render in Google Webmaster Tools can check Google's ability to render JavaScript pages without using the escaped fragment....
John Mueller Mar 10, 2015
★★★ Can a faster server really enhance your crawl budget without affecting your rankings?
Switching to a more efficient server can increase Googlebot's crawl capacity, but it does not automatically improve page rankings....
John Mueller Mar 10, 2015
★★★ Should you really delete or noindex pages with low content?
If a site has many pages with low content or duplicate content, it may be beneficial to improve or remove them, and use noindex tags if necessary....
John Mueller Mar 10, 2015
★★★ Should you really create multiple sitemaps to optimize your site's crawl performance?
Having multiple sitemaps is acceptable if your site contains a large number of pages. It will not negatively affect crawling by Google Bot as long as the URLs are well-organized....
Google Mar 02, 2015
★★★ Do interstitials really block Googlebot from crawling?
Interstitials can cause problems for Googlebot. If an interstitial blocks the main content that Googlebot needs to see, it can hinder Google's ability to rank the page properly. Interstitials that int...
John Mueller Feb 27, 2015
★★★ Is it really necessary to stop hiding content from indexing bots?
Google recommends not to deliberately hide content from indexing bots via JavaScript or iframes if that content is accessible to users, unless it is absolutely necessary for legal or privacy reasons....
John Mueller Feb 27, 2015
★★★ Does mobile indexing really create a separate index?
Mobile sites are not indexed separately. There is no distinct mobile index like there was in the past with feature phones. Mobile search results access the same content as on desktop....
John Mueller Feb 26, 2015
★★★ Should you really deindex dead links in Search Console?
There is no need to use deindexing for dead links reported in Google Webmaster Tools. If a page is inaccessible, Google will eventually remove it from results automatically after confirming its absenc...
John Mueller Feb 26, 2015
★★★ Can JavaScript redirects really replace server redirects in SEO?
When a server redirect is not possible, Google recommends using a JavaScript redirect to enhance the user experience. Canonical tags on 404 pages are not considered by crawlers....
John Mueller Feb 24, 2015
★★★ Can a 404 error during downtime really get your site deindexed?
A server downtime should be signaled with a 503 status code to indicate a temporary issue and avoid damaging rankings. A 404 could lead to deindexing if the downtime is extended....
John Mueller Feb 24, 2015
★★★ Can UX offset technical shortcomings in SEO?
Technology remains crucial in SEO, particularly for crawling and indexing. UX is essential, but it does not replace the technical fundamentals of SEO....
John Mueller Feb 24, 2015
★★★ Should you block by IP to ensure content remains local?
To ensure that content is limited to a geographic region, it is possible to block external visitors by IP address, as long as Googlebot accesses the same content as users from the targeted region....
John Mueller Feb 24, 2015
★★ Do legal mentions and terms of use truly affect Google rankings?
The presence of pages such as terms of use and privacy policy does not directly affect a site's ranking in Google. Their content can be indexed, but it should not be viewed as a sign of the site's qua...
John Mueller Feb 24, 2015
★★★ Is the rel=canonical tag truly enough to handle syndicated content in Google News?
When syndicating content via services like Reuters or AFP, the use of the rel=canonical tag is recommended to avoid duplicate content issues....
Stacie Chan Feb 21, 2015
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