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 5 questions

Less than a minute. Find out how much you really know about Google search.

🕒 ~1 min 🎯 5 questions
★★★ Do temporary server errors really slow down Google's crawl?
Temporary loading errors due to bandwidth limitations or server load can influence Google's crawling rate. In these cases, crawling may be temporarily reduced....
Google Feb 01, 2019
★★★ Do sitemaps really cut it for indexing API pages without internal linking?
Even for API-driven pages, Google recommends using sitemaps to facilitate crawling and indexing. However, the absence of internal links can hinder the discovery of these pages....
Google Feb 01, 2019
★★★ Do blocked resources really kill your organic SEO?
When resources like images or CSS files do not load correctly for Googlebot, it can affect the indexing and ranking of webpages. Google recommends using the Chrome User Experience Report and Lighthous...
Google Feb 01, 2019
★★★ Is the Mobile-Friendly Test really the right tool to check the indexing of dynamic content?
To ensure that dynamically loaded content is well indexed, Google advises using the Mobile-Friendly Test, which allows for observing the rendering of pages in Googlebot's browser....
Google Feb 01, 2019
★★★ Could 50% of Websites Lose Traffic Due to Mobile First Indexing?
We know that currently, 50% of Google SERP results come from the Mobile First Index. John Mueller recently indicated that, apparently, the "simple" cases have been processed so far. But the remaining ...
John Mueller Jan 28, 2019
★★★ How can you tell if your site has truly switched to mobile-first indexing?
When your site moves to mobile-first indexing, you will receive a notification from Google. However, this message can sometimes be sent some time after the effective transition. To check the current s...
Google Jan 25, 2019
★★ Are your screenshots in Search Console incomplete, and what does it mean?
Partially displayed screenshots in the URL inspection tool of Search Console can indicate that a page isn't fully rendered. This doesn’t necessarily mean there's a problem, but a deeper investigation ...
Google Jan 25, 2019
★★★ Why does mobile-first indexing lead to traffic loss for sites neglecting structured data?
During the transition to mobile-first indexing, it is crucial to ensure that the structured data and alt text for images are correctly configured on the mobile version of the site, just as they are on...
Google Jan 25, 2019
★★ How can you tackle those elusive crawl errors that slip through your server logs?
Crawl errors can occur without leaving a trace in server logs. To try to resolve them, it is advisable to consult your hosting provider as some issues may be related to server configuration....
Google Jan 25, 2019
★★ Could excluded AMP pages really indicate a bad implementation?
AMP pages are typically indexed as alternate pages with a canonical link pointing to the original. A large number of pages marked as excluded may indicate a poor AMP implementation....
Google Jan 24, 2019
★★★ Does the exclusion of pages in the Search Console really affect your site's PageRank?
Pages marked as excluded in Google Search Console do not influence PageRank. These pages are often ignored unless they are accidentally excluded through 'noindex' tags or directives in robots.txt. In ...
Google Jan 24, 2019
★★★ Does the noindex tag really prevent the indexing of your strategic pages?
The 'noindex' tag is an instruction for Google not to index a page. If important pages are mistakenly marked as 'noindex', this tag must be removed for them to be indexed....
Google Jan 24, 2019
★★★ Do canonicals really suffice to manage duplicates without causing SEO penalties?
Pages identified as alternates with canonicals don't pose SEO problems. Google indexes the canonical page and ignores the duplicates. Canonical tags help Google understand which version of a page to i...
Google Jan 24, 2019
★★★ Should you really avoid robots.txt to manage facets and filters on e-commerce sites?
For large e-commerce sites with many filters and facets, it's recommended to use attributes like noindex or canonical rather than employing robots.txt to guide Google on which pages to index....
John Mueller Jan 23, 2019
★★★ Should you really use the canonical tag across subdomains for similar pages?
If you have very similar pages across different subdomains, it is advisable to use the canonical tag to designate the main version of the pages. This helps consolidate content and avoid dilution betwe...
John Mueller Jan 23, 2019
★★★ Does mobile-first indexing really enhance your Google ranking?
Transitioning to mobile-first indexing does not provide a ranking bonus. Google moves sites to mobile-first indexing when it believes they are ready. There is no direct ranking reward for this change....
John Mueller Jan 23, 2019
★★★ Does the order of URLs and priority in XML sitemaps really affect Google's crawling?
The order of URLs in an XML sitemap does not matter to Google. Likewise, the priority setting for sitemaps is not used by Google to determine crawl frequency....
John Mueller Jan 23, 2019
★★★ Does blocking Googlebot really kill your ranking right away?
If a site blocks Googlebot, Google will slow down its crawling but will retain the content already indexed. However, if significant modifications are made to the site, it will take longer for Google t...
John Mueller Jan 23, 2019
★★★ How Do You Create Quality Content That Truly Stands the Test of Time According to Google?
John Mueller "destroyed" a webmaster on a Google forum after analyzing his site. The publisher took quite a beating. Here's the translation of John's post: We don't index all the content on your site,...
John Mueller Jan 14, 2019
★★★ Does mobile-first indexing really demand a mobile-friendly site?
The shift to mobile-first indexing is distinct from assessing mobile-friendliness. Even if a site is not mobile-friendly, it can still be indexed under mobile-first indexing as long as all content is ...
John Mueller Jan 11, 2019
🔔

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.