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
★★ Why are crawling and indexing considered separate in SEO?
Crawling and indexing are different processes in how Google operates. A drop in crawling does not automatically imply a drop in indexing. It's important to clearly understand the difference between th...
Google Sep 29, 2022
★★★ Is it true that sitemaps play a crucial role in indexing?
Pages not included in the sitemap can still be crawled and indexed by Google. The sitemap helps communicate quickly and effectively with Google, but it doesn't fully control what will be indexed. Goog...
Google Sep 29, 2022
★★★ What happens when you have a noindex on mobile with mobile-first indexing?
With mobile-first indexing, if the noindex tag is present on the mobile version of a page, it will be de-indexed even if the desktop version does not have a noindex. It's the mobile version that matte...
Google Sep 29, 2022
★★★ Why is canonicalization essential for SEO with duplicate content?
To manage duplicate pages with different parameters, Google advises using the canonical tag on all variants to indicate the representative page. This is the recommended method for dealing with duplica...
Google Sep 29, 2022
★★ Should we really view duplicate pages as low-quality content?
Pages with different parameters creating duplicates should not be considered low-quality content. This is a duplication issue to be solved through canonicalization, not a content quality problem....
Google Sep 29, 2022
★★★ How can you unlock your videos with Google's new Video Indexing Report in Search Console?
A new Video Indexing Report is now available in Search Console. It allows you to determine which videos have been indexed and what might be preventing the indexing of others....
John Mueller Sep 28, 2022
★★ Does Google really enforce a strict 15 MB HTML crawl limit per page?
Googlebot crawls up to 15 megabytes of HTML per page. This limit doesn't affect the vast majority of websites....
John Mueller Sep 28, 2022
★★ What's the real reason Google created XML Sitemaps in the first place?
XML Sitemaps were created in early 2005 to allow website owners to provide Google with a list of URLs to crawl and index. Back then, page discovery was difficult because many sites had no incoming lin...
Vanessa Fox Sep 22, 2022
★★ What was Google's real hidden agenda when launching Search Console in the first place?
The tool was created to provide data to webmasters in order to encourage them to submit sitemaps. The approach was to understand what the audience needed, both from site owners and internally at Googl...
Vanessa Fox Sep 22, 2022
★★★ How Does Google Actually Differentiate Between Two Similar Sites for Ranking?
John Mueller explained during a webmaster hangout how Google handles 2 similar sites: ultimately, it doesn't matter if the visual design is more or less different—what counts is the editorial content....
John Mueller Sep 22, 2022
★★ How did Google transform XML Sitemaps into a neutral web standard shared by all major search engines?
Google partnered with Microsoft and Yahoo to establish XML Sitemaps as a unified web standard accepted by all major search engines, resulting in the creation of sitemaps.org with neutral branding and ...
Vanessa Fox Sep 22, 2022
★★★ Do deleted pages really disappear automatically from Google's index?
When a page is deleted from a website, it automatically disappears from Google's systems over time. No additional action is necessary in this case....
John Mueller Sep 14, 2022
★★★ Why does it take several weeks after deleting a page to see your Google index actually update?
It takes a few weeks for Google's systems to update after you delete a page. This delay is normal and predictable....
John Mueller Sep 14, 2022
★★★ Should you really eliminate all internal links pointing to your deleted pages?
It is recommended to remove all references to the deleted page from your website, including internal links and sitemap files....
John Mueller Sep 14, 2022
★★ Does Google really index all your XML files?
Google selectively indexes XML files. Sitemaps and podcast feeds can be indexed, but RSS and Atom feeds generally cannot. The decision depends on the declared XML namespace and the content-type header...
Gary Illyes Sep 08, 2022
★★ Does Google really index images and videos separately from text content?
Images and videos are indexed by a completely different system than the one used for textual content. It's a separate indexer with different processes and result presentation methods....
Gary Illyes Sep 08, 2022
★★★ Does Google really index your PDFs, or does it transform them first?
Google does not index PDF files directly. They are converted to HTML before indexing. The same process applies to Word documents, PowerPoint presentations, and other proprietary formats. Google extrac...
Gary Illyes Sep 08, 2022
★★ Does Google really filter out personal data before indexing your pages?
Google indexes everything published on the public web. If someone uploads private information to a site that makes it publicly accessible, Google can index it. Google does not examine content to deter...
Gary Illyes Sep 08, 2022
★★★ Does Google Really Never Index a Single Image Without a Hosting Page?
Google never indexes a single image on its own. An image must be hosted on an HTML page or a PDF to be indexed. Google indexes the hosting page first, then the image on that page. Isolated images in a...
Gary Illyes Sep 08, 2022
★★ Can you really get JSON and plain text files indexed in Google search results without metadata?
JSON and text files can be indexed and served in search results if Google has enough context. The lack of internal titles and metadata makes these files difficult to rank, but external links with desc...
Gary Illyes Sep 08, 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.