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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★★★ How is Googlebot's evergreen Chrome transforming the SEO landscape?
Googlebot is now using an up-to-date Chromium instance that is regularly updated (evergreen Chrome). This update was announced in May 2019 during Google I/O and significantly improves Googlebot's rend...
Martin Splitt Dec 15, 2021
★★★ How Long Can Your Server Be Down Before Google Deindexes Your Site?
John Mueller explained during a webmaster hangout that from now on, a website that is down (server down problem) will be deindexed if the problem lasts "a couple of days" (so two days, roughly speakin...
John Mueller Dec 13, 2021
★★ Is it true that redirecting old image URLs is essential after an SEO migration?
Embedded images are often forgotten during migrations. Without redirecting old image URLs, Google has to find and re-index them, which takes a considerable amount of time. Setting up these redirects r...
John Mueller Dec 10, 2021
★★★ What happens when a 503 code lasts too long – does Google actually deindex your site?
For a website outage lasting more than a few days, the 503 code does not safeguard your indexing. After a few days, Google views this as permanent and removes the pages from its index. For long-planne...
John Mueller Dec 10, 2021
★★ Does the 304 code really impact your crawl budget?
A 304 response (not modified) does not count against the crawl budget. Google can reuse this request to crawl something else on the site. The 304 code helps Google understand how often pages are updat...
John Mueller Dec 10, 2021
★★ Should you really add text to enhance the indexing of numerical data?
For pages that mainly feature numerical data, adding descriptive text will not impact how Google crawls and indexes those pages. Numbers are regarded as unique content. Indexing instead relies on the ...
John Mueller Dec 10, 2021
★★ Do URL parameters on images really hinder SEO?
Adding query parameters to image URLs (for cache invalidation, for instance) does not have a negative effect on SEO. However, frequently changing image URLs slows down their reindexing because Google ...
John Mueller Dec 10, 2021
★★★ Can multiple identical language versions actually hurt your SEO?
Creating numerous country versions for the same language (for example, several nearly identical English versions) complicates indexing and ranking. Google treats them as duplicate content. It's better...
John Mueller Dec 10, 2021
★★★ How does AdsBot affect your site's crawling budget?
The AdsBot robot shares the same crawling budget as Googlebot. An increase in AdsBot requests can reduce Googlebot's crawling of normal pages. This situation usually stabilizes quickly after new adver...
John Mueller Dec 10, 2021
★★★ Is it true that 'discovered and not indexed' signals a quality issue for a site?
For a reasonably sized site (25,000 pages), if the right URLs are showing up en masse as 'discovered and not indexed' rather than 'crawled and not indexed', it likely indicates a broader quality issue...
John Mueller Dec 10, 2021
★★ How does Google's automatic keyword expansion affect your SEO strategy?
Google may automatically expand certain words into appropriate variations during indexing by removing punctuation if it does not serve as a natural word boundary but rather as an indicator of differen...
John Mueller Dec 07, 2021
★★★ How is Google adapting to inclusive writing in its SEO practices?
Google must ensure that inclusive writing is supported by its crawling, indexing, and ranking systems, and that it also displays inclusive results....
Zineb Ait Bahajji Dec 07, 2021
★★★ How is inclusive language affecting SEO indexing?
Google has started collaborating with the Search Ranking team to explore how new inclusive writing practices are managed at the indexing and ranking levels....
Bruno Cartoni Dec 07, 2021
★★ How does Google decide which pages to crawl first?
Google attempts to reprocess all pages at least every few months. Most pages are checked much more frequently, but crawling capacity is limited and Google has to prioritize which pages to explore....
John Mueller Dec 02, 2021
★★ Is it detrimental to SEO to disable JavaScript specifically for Googlebot?
Disabling JavaScript only for Googlebot is not advisable. It can create a divergence between what Googlebot sees and what users experience, making it very challenging to diagnose issues. If JavaScript...
John Mueller Nov 26, 2021
★★★ How does Google handle website technical issues?
For technical issues (site downtime, crawl errors), Google has virtually no memory. As soon as the site becomes accessible again, indexing and display resume almost instantly, as Google must cope with...
John Mueller Nov 26, 2021
★★★ What happens to out-of-stock product pages according to Google?
Google tries to determine whether a page is still relevant based on its content. Out-of-stock product pages can be seen as soft 404 errors and may be completely removed from the index. If the page rem...
John Mueller Nov 26, 2021
★★★ Is it a good idea to canonicalize paginated pages to the first page for SEO?
When all paginated pages (page 2, 3, 4) are canonicalized to page 1, the content from the other pages will not be indexed. This approach works if the site has sufficient cross-links, but if pages 2-3-...
John Mueller Nov 26, 2021
★★ How does Google determine indexing timelines for different domains?
Indexing time varies significantly from one domain to another. Google attempts to understand the overall context of a domain to determine where to allocate its crawling resources. A new, lesser-known ...
John Mueller Nov 26, 2021
★★★ Why doesn't Googlebot interact with e-commerce pages?
Googlebot renders pages to check for missing content, but it does not interact with the pages (no clicks, no adding to cart). It would take too long to crawl the entire web. However, Google Product Se...
John Mueller Nov 26, 2021
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