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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★★ Can noindex pages actually pass on PageRank?
A page with a noindex attribute can still pass PageRank through its links as long as it doesn't have a nofollow attribute....
John Mueller Apr 24, 2015
★★★ Does duplicate content really harm your site's SEO?
Google does not penalize sites for duplicate content, but recommends making your site distinct by adding unique information, such as customer reviews, to facilitate improved indexing....
John Mueller Apr 24, 2015
★★★ Does the canonical tag really protect your original content from syndication?
The canonical tag should be maintained on syndicated versions to point to the original URL and avoid duplicate content issues, but this is not always respected, which can affect the ranking of origina...
Google Apr 23, 2015
★★ Does Mobile App Indexing Really Boost Your Google Ranking?
App indexing does not create a distinct ranking signal. If the corresponding mobile site of an app is already well-ranked, a button will appear to allow users to open the app....
Google Apr 23, 2015
★★ Is internal linking really a direct ranking signal for Google?
Internal linking can indirectly help rankings by facilitating content discovery, but it is not a direct ranking signal. A good navigation system improves indexing....
Google Apr 23, 2015
★★★ Does Android app indexing really boost the ranking of mobile pages?
App indexing is currently only supported for Play Store applications on Android devices and is used as a ranking signal for corresponding mobile pages. This means that even if an app is not installed,...
Google Apr 23, 2015
★★★ Should you block or allow indexing of your faceted pages?
Pages with parametric filters may or may not be indexed separately depending on the strength and usefulness of the filtered pages. It is advisable to let Google decide if there is uncertainty....
John Mueller Apr 21, 2015
★★★ Should you ditch mobile URL parameters in favor of rel=canonical?
To manage the indexing of mobile pages and avoid duplications, it is better to use the rel=canonical tag rather than relying solely on URL parameters....
John Mueller Apr 21, 2015
★★★ Are non-mobile-friendly sites really penalized by Google?
Non-mobile-optimized sites are not removed from Google's index, but they may experience a slight ranking drop in mobile search results compared to optimized sites....
John Mueller Apr 21, 2015
★★★ Does the URL Parameter Management Tool really affect indexing or just crawling?
The URL Parameter Management Tool in Google Search Console mainly affects how URLs are crawled, not necessarily how they are indexed. The change in search results can take several months....
John Mueller Apr 21, 2015
★★★ How does Googlebot automatically adjust its crawl in response to server errors?
When Google encounters server errors, such as 500 or 508, during crawling, it automatically reduces the crawl speed and retries later to avoid overloading the server....
John Mueller Apr 21, 2015
★★★ Why does Google still show old URLs after a domain migration?
During a domain migration, if you perform a site: query for the old domain, Google may still show the old URLs assuming they have been moved, even if this does not reflect the reality of indexing for ...
John Mueller Apr 21, 2015
★★★ Do URL parameters really block your pages from being indexed?
The URL parameter management tool does not directly change what gets indexed but rather manages how pages are crawled. Indexing changes may take several months to materialize, not weeks....
John Mueller Apr 21, 2015
★★★ Should you still manually submit your pages to Google to speed up indexing?
When significant changes are made to a site, using tools like 'Fetch as Google' and submitting for indexing can expedite their recognition by Google. Changes will gradually be reflected in the search ...
John Mueller Apr 21, 2015
★★ Does server speed really affect Google rankings or just crawling?
Page load speed is more of a technical issue affecting Googlebot's crawling frequency rather than a direct SEO penalty factor. Faster servers allow Google to crawl more content quickly....
John Mueller Apr 21, 2015
★★★ Why does the site: query display URLs that Google doesn't rank in the SERPs?
A site: query can sometimes show several versions of a page, even though Google's index only includes one for ranking in the SERPs. Using the info: query can help verify which URL is actually indexed....
John Mueller Apr 21, 2015
★★★ Does server speed really affect Google's crawl budget?
The speed of your server affects how quickly Google can crawl your pages, but the rendering time for users is more concerned with user experience. Google slows down its crawling if server errors occur...
John Mueller Apr 21, 2015
★★★ Should you ditch the URL parameters tool for rel=canonical to manage mobile and desktop versions?
To manage the mobile and desktop versions of your site, it is preferable to use the rel=canonical attribute instead of the URL parameters tool to indicate which version should be indexed as primary....
John Mueller Apr 21, 2015
★★ Should you really align Googlebot's mobile redirects with those of your visitors?
For redirects between mobile and desktop sites, ensure that the mobile Googlebot sees the same redirects as users to guarantee good SEO....
Google Apr 16, 2015
★★★ Should you really rely on the mobile compatibility test instead of Search Console to audit your site?
To ensure your site is mobile-compatible, use the mobile compatibility testing tool. This tool performs a new crawl every time a URL is tested, which makes it more up-to-date than the data from Search...
Google Apr 16, 2015
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