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.
Quick SEO Quiz

Test your SEO knowledge in 3 questions

Less than 30 seconds. Find out how much you really know about Google search.

🕒 ~30s 🎯 3 questions 📚 SEO Google
★★ Does Google really refuse to index your templated content, and why should you care?
Google does not guarantee indexing of content created from templates, even if it is submitted. If very similar pages are not indexed, you must differentiate key elements such as H1 tags....
Miriam Jessier Nov 03, 2022
★★ How can you use Search Console to uncover hidden indexation problems caused by service workers?
To diagnose indexation issues related to service workers, use Search Console to verify the number of indexed pages, identify 404 errors, and examine whether only the minimal HTML shell is indexed with...
Dave Smart Nov 01, 2022
★★ Your page is indexed but invisible: is it a technical issue or simply outranked by competitors?
Before investigating technically, you must first check whether an indexed but non-visible page isn't simply ranking poorly due to competition or content issues, rather than a technical indexation prob...
Dave Smart Nov 01, 2022
★★ Is developer collaboration really the breakthrough you need to unlock indexation problems?
When facing an indexation issue, you must quickly collaborate with developers by explaining the observed problem and retracing step-by-step how data travels from server to screen to identify where the...
Dave Smart Nov 01, 2022
★★★ Can Googlebot actually index a website that relies on service workers to display its content?
Googlebot cannot register service workers. If a site waits for service worker registration before loading main content via client-side JavaScript, the content will not be indexed and pages will remain...
Martin Splitt Nov 01, 2022
★★★ How can service workers accidentally hide your entire content from Googlebot?
Intercepting normal content fetch requests exclusively in the service worker for offline functionality can prevent Googlebot from accessing this content, because the bot cannot benefit from service wo...
Dave Smart Nov 01, 2022
★★ Do URL hash fragments (#) create separate pages in Google's eyes?
URLs containing a hash symbol (#) are used to create links to a specific section of a page. The part before the hash is the page address, the part after is the reference to a precise location. In term...
John Mueller Oct 26, 2022
★★★ Are URLs with hash (#) really invisible to Google?
Most of the time, the part located after the hash symbol (#) in a URL is ignored by search engines during crawling and indexing. Only the part before the hash is used for indexing....
John Mueller Oct 26, 2022
★★★ Should You Really Optimize Image File Names and Avoid Changing Their URLs at All Costs?
John Mueller explained during a webmaster hangout that Google takes into account image names (for example: golden-retriever-dog.jpg) because it can give the search engine an idea of what the image con...
John Mueller Oct 24, 2022
★★★ Does noindex really help you save crawl budget, or is it the wrong tool for the job?
Adding noindex to optimize crawl budget is ineffective because Google must crawl the page to discover the noindex tag. Only robots.txt allows you to control crawling. The number of noindex pages does ...
Lizzi Sassman Oct 21, 2022
★★ Does blocking URLs with robots.txt but leaving them indexed really hurt your SEO?
If URLs blocked by robots.txt are indexed but only appear in the omitted results of a site: search, it's not problematic. They don't affect your site. Pay attention only if they rank in place of your ...
John Mueller Oct 21, 2022
★★ Should you really block JavaScript execution for SPAs with server-side rendering?
For single-page applications with server-side rendering, there is no advantage to preventing Googlebot from executing JavaScript bundles. Doing so would only increase complexity without any real benef...
Martin Splitt Oct 21, 2022
★★★ Does Google really respect rel=canonical or is it just a suggestion that gets ignored?
The rel=canonical tag allows you to indicate to Google your preferred version among multiple pages with identical content. It's not an absolute guarantee because Google takes many signals into account...
John Mueller Oct 21, 2022
★★★ Does duplicate content really trigger a Google penalty?
Publishing the same content across multiple sites (blog and e-commerce for example) does not result in a duplicate content penalty. Google will attempt to index one version, and it's normal to have id...
John Mueller Oct 21, 2022
★★ Should you really segment your sitemaps beyond 50,000 URLs?
Sitemaps exceeding the 50,000 URL limit generate errors in Search Console. It is recommended to segment sitemaps to respect this limit, even if the site can function without a sitemap....
Lizzi Sassman Oct 20, 2022
★★★ Can iframes in your <head> really break your technical SEO?
An iframe placed within a noscript tag located in the head section can prematurely close the head tag during rendering. This displaces the following elements (including hreflang) into the body, making...
Martin Splitt Oct 18, 2022
★★★ Does Google really see your website the same way browsers do?
There is a crucial difference between the HTML source sent by your server and the DOM rendered after processing by the browser. This distinction is important to understand how Google handles pages, es...
Martin Splitt Oct 18, 2022
★★★ Should you use HTML or XML sitemap for hreflang? Which method truly matters for international SEO?
Hreflang annotations can be implemented in two ways: directly in the page's HTML code or via an XML sitemap. Both methods are valid and recognized by Google for international SEO....
Martin Splitt Oct 18, 2022
★★★ Can the URL inspection tool really uncover all your indexation problems?
The URL inspection tool in Search Console can indicate why a page isn't being indexed, notably by identifying technical site issues such as blockage by the robots.txt file....
Alan Kent Oct 17, 2022
★★★ Is the URL inspection tool really the best way to verify if your pages are indexed?
Google Search Console offers a URL inspection tool that allows you to check whether a specific web page is indexed by Google or not. This tool is the official way to monitor the indexation status of y...
Alan Kent Oct 17, 2022
🔔

Get real-time analysis of the latest Google SEO declarations

Be the first to know every time a new official Google statement drops — with full expert analysis.

No spam. Unsubscribe in one click.