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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★★★ Should you still worry about crawl budget now that Google is removing the crawl frequency parameter?
The crawl frequency parameter is being removed from Search Console because it's no longer necessary. Google's systems have improved to automatically determine an appropriate and sustainable crawl freq...
John Mueller Dec 19, 2023
★★★ Should You Worry About Duplicate Content Between an HTML Page and Its PDF Version?
In a recent video published on YouTube, John Mueller explains that there is no problem with content being published in both HTML and PDF formats, noting that both types of pages can be displayed indep...
John Mueller Dec 19, 2023
★★★ Does Google really ignore text generated through the CSS 'content' property—and why should you care?
Content added to a page through the CSS 'content' property is generally not indexed by Google. This information has been officially documented by the Google Search team....
Google Dec 19, 2023
★★ Did Google really move the robots.txt testing tool and why does it matter for your site?
The robots.txt testing tool has been updated in Search Console. It is now located under Settings and provides an overview of all your subdomains....
John Mueller Dec 19, 2023
★★★ Is your site losing visibility because Googlebot is interpreting all your dates in US Pacific time?
By default, Googlebot uses the US Pacific timezone (Pacific Time) to interpret dates and times in structured data....
Google Dec 19, 2023
★★★ Should you block Google's generative AI in robots.txt? Here's what you need to know about Google-Extended
Google has added Google-Extended, a new user agent for robots.txt. Web publishers can use it to control whether their sites help improve Bard and generative Vertex AI APIs....
John Mueller Dec 19, 2023
★★ Are double slashes in URLs really hurting your SEO performance?
From a technical standpoint (RFC 3986), double slashes in URLs don't pose a problem because the slash is a valid separator that can appear multiple times. However, from a usability perspective, it's n...
Gary Illyes Dec 18, 2023
★★★ How can you successfully transfer your image rankings to new URLs without losing search visibility?
To transfer image rankings to new URLs, update the img elements to point to the new URLs and redirect the old image URLs to the new ones. Since images are crawled less frequently, reprocessing across ...
Google Dec 18, 2023
★★★ Should you really prioritize a hierarchical structure for large websites?
For large websites, a hierarchical structure is generally preferable. It allows different sections to be treated differently, particularly for crawling. For example, having a 'news' directory for news...
Gary Illyes Dec 18, 2023
★★★ Does Googlebot really ignore the meta prerender-status-code 404 tag in JavaScript applications?
Googlebot currently ignores the 'prerender-status-code content 404' meta tag. To avoid soft 404s in client-side rendered single-page applications, use a meta robots noindex tag instead or redirect to ...
Martin Splitt Dec 18, 2023
★★★ Is blocking crawl via robots.txt really the miracle solution against toxic links?
To prevent Googlebot from crawling URLs you don't want explored, use the robots.txt file to block them. If Googlebot doesn't make a request to these URLs, it won't see the content or the URLs it might...
Martin Splitt Dec 18, 2023
★★★ Is web accessibility really a Google ranking factor or just a smoke screen?
Accessibility isn't exactly important for rankings, but it is for users. Some accessibility features like image alt attributes are useful for Googlebot. Generally speaking, building a useful website m...
Martin Splitt Dec 18, 2023
★★ Should you force your sitemap file indexation in Google?
A sitemap file can be indexed, but forcing its indexation is pointless. This doesn't harm your site but brings no benefit either. If you want to prevent its indexation or effectively remove it from se...
Gary Illyes Dec 18, 2023
★★★ Why does blocking crawl via robots.txt prevent Google from seeing your noindex directive?
If you block the crawling of URLs via robots.txt, Googlebot cannot make a request to those URLs and therefore does not see the noindex directive. To prevent indexation, you must allow crawling so that...
Martin Splitt Dec 18, 2023
★★★ Is returning HTTP 200 on a 404 page really cloaking or just a soft 404?
Returning an HTTP 200 status code for pages that should be 404 is generally considered a soft 404, not cloaking, and doesn't lead to penalties. However, it's undesirable. Solutions: configure a proper...
Gary Illyes Dec 18, 2023
★★★ Does Google really index iframe content as part of the parent page — or treats it as completely separate?
Google attempts to associate content from a subpage embedded via iframe with the main page during indexing, but this is not guaranteed since both are normal HTML pages. To ensure a subpage is indexed ...
Google Dec 18, 2023
★★ Should you worry when Googlebot crawls your API endpoints and generates 404 errors?
If Googlebot finds API path URLs in your raw JSON, it can crawl them and generate 404 errors. This is not a concern. If you want to avoid this, use robots.txt to forbid crawling of these URLs. When Go...
Martin Splitt Dec 18, 2023
★★★ Why is Google removing the crawl rate tool from Search Console?
Google has announced the removal of the crawl rate tool in Search Console. This tool will no longer be available to webmasters....
John Mueller Dec 15, 2023
★★★ Why does Google index URLs with parameters even when a canonical tag is present?
A page might show as 'Crawled - not indexed' in Search Console but can still be indexed during a URL inspection. If a URL with parameters has a rel=canonical tag pointing to the parameterless version,...
Google Dec 14, 2023
★★★ Why does Google limit video thumbnails to pages with main content?
Google has extended the change in video mode to video tabs (not just the main results). Only pages where the video is the main content will now display a video thumbnail, making it easier to search fo...
Google Dec 14, 2023
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