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 Google actually decide the crawling frequency of your pages?
Google considers the perceived importance of a page to determine the crawling frequency. Less important or infrequently updated pages may be crawled less often....
John Mueller Dec 02, 2016
★★★ Do orphan pages remain indexed even without internal links?
If pages are no longer linked after a site restructuring, Google may consider them less important. They will generally remain indexed as long as they contain relevant content, but may be removed from ...
John Mueller Dec 02, 2016
★★★ Why should your sitemap URLs match exactly with your internal linking?
It's crucial to have a consistent URL structure and to match the URLs in the sitemaps with those used for internal linking, canonical tags, and hreflang for effective indexing....
John Mueller Dec 02, 2016
★★★ Can hreflang and canonical tags really work together without disrupting multilingual indexing?
For a multilingual site with user-generated content in a single language, use hreflang tags to indicate the language of the content. Do not share canonical tags between different languages, as this wo...
John Mueller Dec 02, 2016
★★★ Should you really wait for Google to automatically reindex your pages after a 404?
Google will attempt to automatically reindex pages that previously returned a 404 error. However, to speed up this process, you can use the indexing submission feature in Search Console for a few page...
John Mueller Dec 02, 2016
★★★ How can you effectively block malicious or unnecessary dynamic URLs generated by your site?
If your site generates unusual URLs, check for signs of hacking. Block dynamic search result pages in the robots.txt file to prevent the indexing of unnecessary content....
John Mueller Dec 02, 2016
★★★ Should you really rely on the site: command for indexing audits?
The site: command is optimized for speed rather than accuracy. For precise diagnostics, it is better to use the indexing data in Search Console....
John Mueller Dec 02, 2016
★★★ Do orphan pages really impact your crawl budget?
Unlinked pages should not negatively affect the crawl of important pages. Google focuses on key pages to ensure that new and essential content is crawled properly....
John Mueller Dec 02, 2016
★★★ Should you really use the TITLE attribute for your images?
All you need is an ALT attribute for an image; the TITLE attribute is meant for links. The ALT attribute is crucial as it describes the image and helps it to be indexed correctly....
John Mueller Dec 01, 2016
★★ Are A/B tests using cookie switching truly free from cloaking penalty risks?
A/B tests involving cookies and User Agents are not considered cloaking if the user experience is not maliciously altered depending on whether Googlebot or a user visits the page....
John Mueller Dec 01, 2016
★★ Should we really be concerned about Google's crawl of deleted 404 pages?
Even deleted pages can be crawled from time to time by Google to check if they are still 404 errors. This long-term process does not pose any problem for the website....
John Mueller Dec 01, 2016
★★★ How does Google restore a site's ranking after lifting a manual penalty?
When a site is impacted by manual actions or DMCA, and the issues are fixed, our algorithms take this into account over time, and the site's situation may gradually improve in search results....
John Mueller Dec 01, 2016
★★★ Should you really return a 503 during a server migration?
During a short-term server migration, you should return a 503 error code to indicate that the unavailability is temporary. Google will attempt to revisit later without long-term effects on indexing....
John Mueller Dec 01, 2016
★★★ Do AMP pages really get a ranking advantage in Google?
AMP pages do not have a ranking advantage over traditional mobile pages apart from loading speed. They can only be considered as the mobile version if they are correctly linked through separate mobile...
John Mueller Dec 01, 2016
★★★ Do 301 redirects really enforce the canonical URL to Google?
301 redirect signals are used by Google for canonicalization, but several factors are considered when deciding which URL to display, including canonical tags and internal links....
John Mueller Dec 01, 2016
★★ Why do images slow down your website migration?
During a website migration, it is essential to properly redirect image URLs as well as their corresponding pages. The indexing of images is generally slower, which can prolong the migration process fo...
John Mueller Nov 29, 2016
★★ Is AngularJS compatible with optimal Google indexing?
For sites using AngularJS, it is essential to ensure that the site is SEO compatible. Resources such as the Tutorials on Progressive Web Apps and the recent video on Angular Connect provide guidance t...
John Mueller Nov 29, 2016
★★★ Do noindex pages really dilute your site's PageRank?
Links to pages with the 'noindex' attribute still pass PageRank to the rest of the site, especially through navigation and other links to indexed pages....
John Mueller Nov 29, 2016
★★★ Is Google’s sandbox a real thing or is it just an SEO myth?
Google does not have a sandbox or a waiting period before displaying new content. Recognition and indexing of new content happen automatically based on algorithms that determine its relevance and qual...
John Mueller Nov 29, 2016
★★★ Is it really necessary to maintain two sitemaps during an HTTPS migration?
During an HTTPS migration, it is advisable to maintain your original sitemap with HTTP URLs while creating a new sitemap for HTTPS URLs. This helps Google better understand the migration and reindex p...
John Mueller Nov 29, 2016
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