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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★★★ Does Google extract meta robots and canonical tags during indexing rather than at crawl time—and why does this distinction matter for your site?
Meta tags such as meta robots noindex and rel canonical are extracted during the indexing process, when Google parses the content and performs rendering. If Google detects meta robots noindex, the URL...
Gary Illyes Aug 04, 2022
★★ Should you really rely on JavaScript to handle noindex directives?
Adding meta noindex via JavaScript should work in most cases after rendering, but there can be time windows or situations where rendering doesn't happen and the directive wouldn't be seen. It's better...
Gary Illyes Aug 04, 2022
★★ Can a single noindex tag on an hreflang page contaminate your entire international cluster?
In hreflang clusters, pages can influence each other mutually. A noindex on one page in a cluster can potentially affect the entire cluster in case of detected duplication. It is recommended to add no...
Gary Illyes Aug 04, 2022
★★★ Does Google's URL removal tool actually stop crawling your pages?
Using the removal tool doesn't signal Google to stop crawling the page. Google will continue its crawl attempts. To prevent the page from returning to the index, you must combine the tool with noindex...
Gary Illyes Aug 04, 2022
★★★ Should you use X-Robots-Tag to keep PDFs and binary files out of Google's index?
For binary files like PDFs where it's impossible to add a meta tag, Google supports the X-Robots-Tag HTTP header with noindex. This header works like a meta noindex and will be processed during indexa...
Gary Illyes Aug 04, 2022
★★ Does the unavailable_after directive really slow down Google's crawling?
The unavailable_after directive leads to a gradual slowdown in crawling over time. Google continues to check the page because it wants to ensure the truthfulness of the information, just as it does wi...
Gary Illyes Aug 04, 2022
★★ Should you disable Google cache to take control of how your snippets appear in search results?
At the serving level (search results display), it is possible to control the snippets displayed and the cached content of the page. The meta noarchive tag allows you to remove the cached page without ...
Gary Illyes Aug 04, 2022
★★★ Do Noindex Pages Really Impact Your Core Web Vitals?
In an official document, Google states that a page marked as "noindex" cannot impact the overall Core Web Vitals score of the site to which it belongs....
Google Aug 01, 2022
★★★ How can you leverage the new Video Indexing Report in Search Console?
Google is gradually rolling out a new Video Indexing Report in Search Console. This tool allows you to see whether Google is detecting and indexing your videos, as well as identify why certain videos ...
Ogawa Anna Jul 28, 2022
★★ Why doesn't Google display every single price drop you markup?
The display of price drops can be random because Google does not guarantee displaying all price drops. You also need the right timing due to Google's indexing delays....
Alan Kent Jul 28, 2022
★★ Why aren't your rich snippets showing up even though you have Schema.org markup in place?
If you've added structured data but aren't seeing any special presentation, first verify that the page is indexed using the URL Inspection tool, then use the Rich Results Test tool to identify errors ...
Alan Kent Jul 28, 2022
★★ Is it true that a noindex on an error page can lead to your URL being deindexed?
If a URL consistently generates server errors and redirects to an error page featuring a noindex tag, Googlebot may treat this page as having a noindex and remove it from the index. It's essential to ...
Kanatani Takeaki Jul 28, 2022
★★★ Why is a hierarchical URL structure a game-changer for SEO?
Google suggests organizing content in a hierarchical directory structure rather than using URL parameters. A structure with categories and subpages improves crawlability, indexability, and makes the s...
Google Jul 28, 2022
★★ How is the new video indexing report transforming your SEO strategy?
Google has launched a new video indexing report in Search Console that allows you to check if your videos are being detected and indexed, as well as identify issues like missing thumbnail URLs. This r...
Google Jul 28, 2022
★★★ How does Googlebot's 15 MB limit affect your SEO strategy?
The 15 MB limit for Googlebot applies to the uncompressed file (after extraction), not the compressed one. If an uncompressed HTML file exceeds 15 MB, it is highly recommended to reduce it (externaliz...
Kanatani Takeaki Jul 28, 2022
★★★ Is it true that Googlebot only crawls the first 15 MB of HTML files?
Googlebot fetches and processes only the first 15 MB of a file during the initial request. This limit applies to the source HTML file before executing JavaScript, CSS, or other resources. Most sites a...
Google Jul 28, 2022
★★★ How does Googlebot's 15 MB limit influence your SEO strategy?
Googlebot recognizes only the first 15 MB of the initial retrieved HTML file. This limit applies to the source file before JavaScript, CSS, or other resources are executed. It does not pertain to reso...
Kanatani Takeaki Jul 28, 2022
★★ Should you continue publishing even when facing canonicalization issues?
Even when canonicalization problems persist and new articles are not indexed, it is recommended to continue publishing. Other channels beyond Google Search can drive traffic. Stopping publication due ...
Kanatani Takeaki Jul 28, 2022
★★★ Why is the 15 MB limit on uncompressed files crucial for SEO?
The 15 MB limit from Googlebot applies to the file after decompression, not to the size of the compressed file. If an HTML file exceeds this limit, even after compression, it's recommended to reduce i...
Google Jul 28, 2022
★★ Why should you favor logical directories for your SEO URLs?
For search engines and users, it's better to organize content into logical directory structures rather than using URL parameters. This makes crawlability, indexability, and future site management easi...
Kanatani Takeaki Jul 28, 2022
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