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 treat 308 and 301 redirects the exact same way?
Google treats 308 and 301 status codes identically. Both mean permanent relocation. Googlebot treats 308 as fully equivalent to 301, and these codes are strong signals that the redirect should be cano...
Lizzi Sassman Apr 12, 2023
★★★ Is deliberately serving different HTTP status codes to Googlebot really that risky for your site?
Serving a 410 status code to Googlebot and 200 to users is cloaking and a very bad idea. With multiple Terms of Service conditions, something will eventually go wrong and your site can disappear from ...
Gary Illyes Apr 12, 2023
★★★ Why doesn't Google index every single URL on your site?
Google does not index every URL on the internet—it's simply not feasible. The URLs that Google indexes are those considered to be high quality. You need to verify URL accessibility via Search Console ...
Gary Illyes Apr 12, 2023
★★★ Does content quality really impact how fast Google indexes your pages?
The amount of content Google indexes and the speed of indexation depend on the accessibility of the site for Googlebot and the quality of the content. The higher the quality, the more pages from the s...
Gary Illyes Apr 12, 2023
★★★ How Does Google Actually Discover Your New Domains for Indexing?
Gary Illyes confirmed that Google examines domain name registrations to discover new domains to include in the Google search index. This information was shared in the Search Off The Record podcast. Re...
Gary Illyes Apr 11, 2023
★★ Should you really manually submit your key pages to Google when launching a new website?
When launching a new website, after removing the robots.txt block, it's recommended to go into Search Console (and Bing Webmaster Tools) to submit your homepage and a few other important pages for ind...
Gary Illyes Apr 05, 2023
★★★ Is password protection really the ultimate solution for blocking staging site indexation?
Using password protection is an excellent way to prevent search engines from indexing staging site content, while also preventing random users from accessing it....
John Mueller Apr 05, 2023
★★★ Is robots.txt really sufficient (almost always) to block a staging site from being indexed?
To prevent indexation of a staging site, robots.txt is a simple and effective solution. In most cases, this works because Google cannot crawl the pages and therefore cannot make an indexation decision...
Gary Illyes Apr 05, 2023
★★ Should you really be afraid to publish 7,000 articles all at once?
If your server has sufficient resources to handle a significant additional crawl (potentially 1,000 times more), launching 7,000 articles at once shouldn't cause any problems. Otherwise, you risk brin...
Gary Illyes Apr 05, 2023
★★★ Does content quality really block bulk indexation?
When a site tries to get a million pages indexed simultaneously, two problems arise: Google can only crawl a few thousand URLs per day without overloading the server, and most importantly, content qua...
Gary Illyes Apr 05, 2023
★★★ Does the no-index tag really block all indexing without any exceptions?
If you put a no-index tag on your pages, they will absolutely not be indexed, especially if you don't modify the head element in any way. It's the second choice after robots.txt for blocking a staging...
Gary Illyes Apr 05, 2023
★★★ Why Does Google Sometimes Index Your Pages Without Fully Rendering Them?
On Twitter, Gary Illyes indicated that in certain cases, Google may choose not to perform a complete "rendering" of a page before featuring it in search results or on Google News. This happens when Go...
Gary Illyes Apr 04, 2023
★★★ Does an unintentional noindex tag really cause gradual traffic loss instead of an immediate crash?
An unintentional noindex tag at the page level causes progressive traffic decline, slower than site-wide technical problems, because it depends on Google crawling each individual page....
Daniel Waisberg Mar 29, 2023
★★★ Why Doesn't Blocking a URL in robots.txt Remove It from Google Immediately?
John Mueller has clarified how Google handles exclusion or removal requests from the robots.txt file. The action is not performed when Google discovers the change in your file, but rather once the rob...
John Mueller Mar 28, 2023
★★★ Should You Worry About Googlebot's 15 MB Limit on Your Web Resources?
Google has added some clarifications to Googlebot's help documentation regarding crawling, to specify that the 15 MB limit for HTML code crawled by Googlebot also applies to each individual sub-resour...
Gary Illyes Mar 28, 2023
★★★ Can Keyword Stuffing Really Ruin Your SEO Rankings?
John Mueller stated that keyword stuffing, by itself, does not make a page useless. According to him, Google knows how to ignore this type of tactic, so it's certainly not the only reason for your ind...
John Mueller Mar 28, 2023
★★★ Does Google Penalize Rare Languages in SEO?
Just because content is published in a lesser-used or obscure language doesn't mean it's automatically considered low-quality content. Here's what John Mueller told a user on Mastodon who asked whethe...
John Mueller Mar 21, 2023
★★ Are you structuring your SEO data visualizations correctly to actually maximize your analytics insights?
Google identifies three use cases for SEO data visualizations: monitoring (quickly discovering a change in data), exploration (discovering insights and understanding why a problem occurs), and investi...
Daniel Waisberg Mar 15, 2023
★★★ Is infinite scroll killing your e-commerce indexation on Google?
Infinite scroll creates difficulties for search engines because they must simulate scrolling (via viewport expansion). This is not efficient and can prevent content indexation. It is strongly recommen...
John Mueller Mar 09, 2023
★★ Is an XML sitemap really essential for Google to index your website?
A sitemap is not truly required to appear in search results. If Google cannot retrieve a sitemap, continue normally: the issue may disappear when algorithms re-evaluate the site's content....
Gary Illyes Mar 09, 2023
🔔

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.