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 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
★★★ How does mobile crawl speed truly affect the indexing of your key pages?
A well-optimized mobile site is crucial for websites, especially since the introduction of the mobile ranking factor. Important pages are typically indexed quickly, but this can vary by site....
John Mueller Apr 10, 2015
★★ Should you really submit an empty XML sitemap to Google?
It is possible to submit empty sitemaps in Google Webmaster Tools, but this provides no obvious value if there are no URLs to explore or index....
John Mueller Apr 10, 2015
★★ Does optimizing your crawl budget really boost your organic performance?
Optimizing your crawl budget can influence the discovery and indexing of new content, which can indirectly boost organic performance, especially for news sites....
John Mueller Apr 10, 2015
★★ How do canonical and noindex tags really boost your crawl budget?
Best technical SEO practices, like the correct use of canonical and noindex tags, help maximize the effectiveness of your crawl budget and combine your ranking signals....
John Mueller Apr 10, 2015
★★★ Should you really ditch noindex in favor of canonical to protect your SEO signals?
Using rel=canonical allows you to combine signals for equivalent pages. Noindex causes pages to lose their ranking signals, so it's better to use canonical for identical pages....
John Mueller Apr 10, 2015
★★★ Does the mobile-friendly algorithm really work in real time on your site?
Once activated, the mobile-friendly algorithm works continuously, checking the mobile-friendly status of pages at each re-crawl....
John Mueller Apr 07, 2015
★★★ How can you speed up reindexing after a mobile fix: Is a sitemap really enough?
To ensure Google quickly fetches and reindexes pages after corrections, submit a sitemap with a new change date....
John Mueller Apr 07, 2015
★★★ Should you really serve the exact same content to Googlebot as you do to users?
Do not detect user agents to show different content to Googlebot. Provide them the same user experience as real users to avoid violating Google’s rules....
Google Apr 02, 2015
★★★ Why is the Vary header essential when serving content differentiated by user-agent?
If you are using a single site with user-agent detection to serve different versions based on browser type, make sure your server uses the user-agent based Vary HTTP header to inform Googlebot of the ...
Google Apr 02, 2015
★★★ Why does Googlebot need access to your CSS and JavaScript to properly index your site?
Make sure that the robots.txt file does not block access to the CSS and JavaScript files necessary for rendering the page, so that Googlebot can display it as a user would see it....
Google Apr 02, 2015
★★★ Why are mobile-desktop bidirectional annotations still critical for SEO?
For configurations with two separate sites, it is crucial to establish bidirectional annotations between mobile and desktop pages. This means that each mobile page should link to its desktop counterpa...
Google Apr 02, 2015
★★★ Do Google's skip redirects really help you save crawl budget?
When the canonical is correctly set up, Google can execute 'skip redirects', saving users time and resources for the server by redirecting directly to the appropriate version of the resource without i...
Google Apr 02, 2015
★★★ Should you really separate your mobile and desktop site to please Google?
Google does not have a preference regarding the use of a single site or two separate sites to provide mobile-optimized content. As long as the content is accessible to Googlebot, there is no issue. Ho...
Google Apr 02, 2015
★★★ Should you canonicalize all pagination pages to the first one?
Using the rel=canonical tag to point to the first page of a paginated series can result in the ignoring of additional pages. It's best to clearly decide whether you want all pages indexed or just the ...
John Mueller Mar 27, 2015
★★ Should you apply noindex to paginated category pages?
There is no absolute answer to whether category paginated pages should be noindex. It depends on the quality and added value of the pages for the user. Ensure that individual product pages are accessi...
John Mueller Mar 27, 2015
★★★ Why do your images vanish from search results after a domain migration?
Image indexing after a domain change can take a long time because Google crawls images less frequently than web pages. It is important for the destination pages to point directly to the new image URLs...
John Mueller Mar 27, 2015
★★★ Why does blocking CSS and JavaScript in robots.txt hurt your mobile crawling?
Make sure your robots.txt file allows Googlebot to crawl the CSS and JavaScript content. This enables Google to render your page like a user and verify its mobile compatibility....
Google Mar 26, 2015
★★★ Is it true that Google News prioritizes HTTPS for indexing?
Google News prefers to index HTTPS content when available, thereby promoting the adoption of a more secure Internet....
Stacie Chan Mar 25, 2015
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