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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★★★ How does PageRank actually get passed through redirects?
PageRank is transmitted between the original URL and the final destination during redirects. Chain redirects are not ideal as they increase latency and complexity. Google tracks up to five consecutive...
John Mueller Jul 29, 2016
★★★ Should you really use rel=canonical during an A/B test?
During A/B testing, use rel=canonical to indicate the preferred URL version. It may take time for Google to index the correct versions, but generally, this isn’t a problem....
John Mueller Jul 29, 2016
★★★ Should you submit a temporary sitemap with old and new URLs during a migration?
During a site migration or massive redirections, it is advisable to submit a temporary XML Sitemap with both old and new URLs dated recently to facilitate Google’s recrawl....
John Mueller Jul 29, 2016
★★★ How does Google truly index pages with duplicate structured content?
We generally index pages separately even if they share the same structured content in a block. The canonical or noindex nature influences how we prioritize them....
John Mueller Jul 28, 2016
★★ Is the Last-Modified tag really enough to help Google discover your new content?
The 'Last-Modified' tag informs Google’s bots that content has been updated on a page, which can help in discovering new content if links to new pages are added. However, when it comes to discovering ...
Google Jul 28, 2016
★★★ Do crawl errors reported by Google Search Console really hurt your SEO rankings?
The errors you see in Search Console regarding crawled URLs do not always affect rankings. It is crucial to identify whether they pertain to content you wish to have indexed....
John Mueller Jul 28, 2016
★★★ Does hidden content really affect your SEO ranking?
Google indexes hidden content in tabs or hidden by JavaScript, but it is often considered less relevant for search results ranking because it is not immediately visible to users....
Google Jul 28, 2016
★★★ Do you really need to list all your URLs in the XML sitemap?
An XML sitemap should contain all important URLs for effective and rapid indexing, although not all listed URLs will necessarily be indexed....
Google Jul 28, 2016
★★★ Do rel=next and prev really prevent pagination pages from being deindexed?
Rel=next and prev tags will not remove paginated pages from the index; they are used to understand the sequence of the pages....
John Mueller Jul 28, 2016
★★ Does Google really crawl all the JavaScript links on your site?
Google can crawl links present in JavaScript. However, it is advisable to ensure that all scripts load correctly with the 'Fetch and Render' tool to confirm there are no rendering issues....
Google Jul 28, 2016
★★★ Does the noindex tag really work when Googlebot can't access your pages?
Applying the 'noindex' tag is a solution to prevent indexing in a situation where the pages have already been crawled and indexed. However, this only works if the pages can still be crawled....
Google Jul 28, 2016
★★★ How can you ensure that Googlebot truly accesses the content of your mobile pages?
For the mobile-friendliness test, page content is retrieved by Googlebot. It is crucial that Googlebot can access the page to carry out this analysis accurately....
Google Jul 27, 2016
★★★ Why is it essential to simulate exactly what Googlebot sees for mobile testing?
Mobile compatibility testing employs Googlebot to simulate how Google views your site. This allows you to ensure that your site is perceived the same way by Googlebot and users, which is crucial for i...
Google Jul 27, 2016
★★★ What could blocking Googlebot do to your mobile indexing?
It is vital to allow Googlebot access to a page's resources to ensure its mobile indexing. Blocking Googlebot can hinder the proper analysis of the page for mobile compatibility....
Google Jul 27, 2016
★★★ Does Google's Mobile Compatibility Test truly reflect what Googlebot sees on your page?
Google's Mobile Compatibility Test allows you to check if a page is suitable for mobile devices. It simulates how the page appears to Googlebot and provides feedback on elements that need correction t...
Google Jul 27, 2016
★★★ Does PageSpeed Insights really measure what Google uses for ranking?
PageSpeed Insights measures page loading speed on mobile and desktop, providing concrete advice to optimize web performance, even though it does not simulate Googlebot....
Google Jul 27, 2016
★★★ Could a misconfigured robots.txt destroy your Google indexing?
Make sure that Googlebot and other search robots can access your site with the correct robots.txt configuration. Blocking Googlebot's access may prevent your site from being indexed and from passing m...
Google Jul 27, 2016
★★★ Do XML sitemaps really speed up the indexing of new content?
Mueller states that using sitemaps is particularly useful for new or updated content, allowing it to be indexed more quickly due to the updated modification date....
John Mueller Jul 26, 2016
★★★ Should you really unlock resources in robots.txt for indexing?
Resources like images and scripts should not be blocked in robots.txt if they are essential to displaying your content, as this could harm indexing....
Google Jul 20, 2016
★★★ Should you really submit an XML sitemap through Search Console for Google to index your site correctly?
Submitting an XML sitemap through Search Console allows Google to know which pages of your site to index and to check the status of those indexations....
Google Jul 20, 2016
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