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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★★★ Does robots.txt really protect your pages from Google indexing?
Robots.txt files do not prevent indexing but only block crawling. To remove a page from the index, use no-index tags with crawl permission....
John Mueller Feb 12, 2016
★★ Can mobile interstitials really be indexed by Google?
Google can sometimes index the content of interstitials if it is viewed as mobile-friendly. The impact is assessed based on the content that Google sees during indexing....
John Mueller Jan 29, 2016
★★★ Does infinite scrolling really kill your content's indexation?
For pages with infinite scrolling, it is important to have direct links to the content through unique URLs. Googlebot does not trigger scrolling events, so items depending on these risks not being ind...
John Mueller Jan 29, 2016
★★★ Is Valid HTML Really a Ranking Factor for Google?
Using valid HTML can help Google better understand and index content. Structured data is also easier to interpret if the HTML is well formatted....
John Mueller Jan 29, 2016
★★★ Are Single Page Applications Really Compatible with Good Google SEO?
Single page applications (SPAs) can be effective for good SEO if they use unique URLs and if the content loads correctly for users and Googlebot....
John Mueller Jan 29, 2016
★★★ Can you really use noindex and canonical on the same page?
Google considers the simultaneous use of 'noindex' and 'canonical' tags on the same page to be contradictory. If you want a page not to be indexed, use 'noindex' alone. The canonical tag sends the pag...
Google Jan 28, 2016
★★★ Do blocked redirects by robots.txt really break your links?
Google can track redirects and consider links that include parameters. However, if the redirects pass through a section of the site blocked by 'robots.txt', Google will not be able to follow them. Mak...
Google Jan 28, 2016
★★★ Why does Googlebot ignore cookies and how does it affect your crawl?
Googlebot does not store cookies, which means it cannot access pages that require this information for display....
Google Jan 28, 2016
★★★ Does Google truly index your dynamically loaded content with JavaScript?
Google generally handles content loaded via JavaScript quite well as long as it is not blocked by robots.txt. This content should be visible in the URL inspection tool of Search Console. It is advisab...
Google Jan 28, 2016
★★★ Does the noindex tag affect only the specific page or the entire site?
A noindex tag only affects the page it is implemented on and does not influence the rest of the site....
Google Jan 28, 2016
★★★ Should you limit the number of outbound links to optimize internal linking?
Google takes into account the links in the main content of pages for internal linking. Make sure that your internal linking structure is coherent so that all your content is discovered and well-indexe...
John Mueller Jan 26, 2016
★★★ Why do the indexing figures from Google Search Console contradict the site: command?
The figures for indexed pages in Google Search Console are straightforward and reflect our index. However, site: queries on Google are optimized for speed and not for accuracy. To get an accurate over...
John Mueller Jan 26, 2016
★★★ Are PPC parameters in your backlinks really neutral for your SEO?
If your site receives links with PPC parameters, Google will attempt to crawl them. If a canonical URL is found, these links will be treated as pointing to the canonical URL....
John Mueller Jan 26, 2016
★★ Can app indexing thrive without a web equivalent?
Currently, app indexing is primarily connected to original content found on the web, although the project of independent indexing is being explored at Google....
John Mueller Jan 26, 2016
★★★ Should you really reduce the number of crawlable URLs even if they are marked noindex?
If your site generates a large number of new URLs, you should consider optimizing crawlability by reducing those unique URLs, even if they are primarily noindexed. This can help avoid unnecessary load...
John Mueller Jan 26, 2016
★★★ Does crawl budget really depend on content quality?
Crawl budget is determined on a case-by-case basis and depends on the quality and update frequency of a site's content. Sites with quality content that is updated regularly will often be crawled....
Google Jan 21, 2016
★★ Why does Google encourage you to post your indexing problems in their forum?
Google advises posting complex indexing or search issues in the webmaster help forum to obtain effective support....
Google Jan 21, 2016
★★★ Do 404 pages really harm your SEO rankings?
404 pages do not pose any issues for SEO rankings, unless there are links pointing to them. Google will eventually remove them from the index....
Google Jan 21, 2016
★★★ Why does Google refuse to read a Robots.txt file with an uppercase letter?
Google only recognizes the robots.txt file with a lowercase 'r'; any other case will not be recognized....
Google Jan 21, 2016
★★★ Can mixed content on HTTPS really push Google back to your HTTP version?
Google prefers to index the HTTP version if the HTTPS version has mixed content issues, unless strong signals indicate otherwise....
John Mueller Jan 15, 2016
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