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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★★ Is duplicate content really slowing down your site's crawl rate?
When duplicate content exists at large scale on a site, it can cause a slowdown in page crawling. This is not something that should keep you awake at night, but it is worth considering for optimizatio...
Martin Splitt Nov 12, 2024
★★★ Should You Really Distribute Static Content Across Multiple Domains to Improve Crawling?
In a post published on LinkedIn, John Mueller advises distributing the loading of static content, such as images, across subdomains or separate domains in case of crawl issues. However, he specifies t...
John Mueller Nov 12, 2024
★★★ Should you really redirect all non-canonical URLs with 301s for SEO?
For external links pointing to non-canonical URLs, configuring a 301 redirect to the canonical URL is recommended. This type of redirect avoids performance impacts because browsers memorize the redire...
Martin Splitt Nov 12, 2024
★★★ Does Google really ignore your canonical tags? Here's why it happens more often than you think
The canonical tag is treated as a hint by Google Search and not as an absolute directive. Google can choose a different URL than the one specified because this tag is often used incorrectly by site ow...
Martin Splitt Nov 12, 2024
★★ Does Google actually crawl CSS-hidden elements?
Google's crawler can retrieve HTML elements even if they are hidden with display:none. Links found within elements like details tags or popovers are also followed by the crawler if they exist in the D...
Google Oct 31, 2024
★★★ Should you still worry about Googlebot desktop with a mobile-first index?
Googlebot desktop is still active after the full transition to mobile-first indexing in July 2024. The MFI change means that Google primarily uses the mobile user-agent to index content, but Googlebot...
Google Oct 31, 2024
★★ How should you handle the X-Robots-Tag during 301 redirects?
If you want to use the X-Robots tag with noindex/nofollow during a 301 redirect, you need to apply it not only on the intermediate page but also on the final destination page....
Google Oct 31, 2024
★★★ What Should You Do with Your Old AMP Subdomains: Keep or Delete Them for Good?
John Mueller advises site owners with obsolete AMP subdomains to maintain existing 301 redirects, or alternatively to completely remove the AMP subdomains from DNS. He also clarifies that there is no ...
John Mueller Oct 29, 2024
★★★ Are ARIA Attributes Really Useless for Your Google Rankings?
John Mueller and Martin Splitt have spoken out about ARIA attributes, which are used to improve accessibility, stating that they have no direct influence on ranking or indexing in Google Search. While...
John Mueller Oct 29, 2024
★★★ How Can You Diagnose and Fix Crawl Problems Affecting Multiple Domains at Once?
John Mueller explained how to resolve crawl issues affecting multiple domains simultaneously. He suggests examining shared infrastructures, such as CDNs, which are often responsible for these interrup...
John Mueller Oct 29, 2024
★★★ Should you really create visible links between language versions for SEO?
You need to create visible links to different language versions to allow users to choose and help Googlebot discover these versions. Links benefit both users and crawling....
Martin Splitt Oct 15, 2024
★★★ Are you losing international traffic? Here's how to properly implement hreflang
Hreflang helps Google and other search engines link different versions of a page for different countries and display the correct version to users. It can be implemented via HTML tags, HTTP headers, or...
Martin Splitt Oct 15, 2024
★★★ Is Your robots.txt File Still Compliant Now That Google Only Recognizes 4 Directives?
Google has updated its policy regarding the robots.txt file, clarifying that it only supports four fields: "user-agent", "allow", "disallow", and "sitemap". In other words, unsupported directives are ...
Google Oct 15, 2024
★★★ Should You Really Avoid Maintenance Pages Before Launching Your New Site?
John Mueller recommends not using a generic maintenance page or activating DNS before your site is ready. This approach accelerates indexing, as a generic holding page often signals an inactive site, ...
John Mueller Oct 08, 2024
★★★ Should You Really Choose Between Noindex and Canonical for SEO Optimization?
John Mueller has clarified the simultaneous use of noindex and canonical tags. While the noindex tag prevents a page from being indexed, the canonical tag indicates a preferred URL. The famous Google ...
John Mueller Oct 08, 2024
★★★ How Can SEO Professionals Control AI Crawler Access to Maximize Their SEO Performance?
John Mueller states that technical SEO professionals can influence their clients' decisions regarding AI policies and decisions thanks to their knowledge of how crawlers work and their mastery of cont...
John Mueller Oct 08, 2024
★★★ Are there really any secrets to ranking first on Google?
There are no particular secrets that will allow your site to rank in the first position on Google. However, there are several best practices that can facilitate the exploration, indexing, and understa...
Daniel Waisberg Sep 25, 2024
★★★ Why Does Google Sometimes Index Pages Blocked by Robots.txt?
John Mueller explained that pages blocked, typically by a noindex directive, can sometimes still be indexed by Google. The reason: if Google cannot crawl the page, particularly due to a disallow in ro...
John Mueller Sep 10, 2024
★★ Does Google really refresh your Merchant Center product data multiple times per day?
The 'automatic item uploads' feature in Merchant Center allows merchants to specify key product attributes to be refreshed automatically. Google then updates this information more frequently than dail...
Irina Tuduce Sep 05, 2024
★★★ What's the best way to feed your products into Google Shopping to maximize visibility and sales?
There are three ways to integrate your products into shopping infrastructure: 1) manually upload a feed via Merchant Center, 2) use the Feeds API to automate updates, 3) enable automatic crawling whic...
Irina Tuduce Sep 05, 2024
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