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 really make all recipe images indexable to perform well in SEO?
For a recipe site, it is strongly recommended to make images indexable. Users often search for recipes via Google Images. Moreover, Recipe structured data requires indexable images to display rich thu...
John Mueller May 15, 2020
★★★ Should you merge two cannibalizing pages or let them coexist?
When faced with two competing pages on the same topic, merging via canonical is wise if they struggle to rank (boost visibility). Conversely, if both pages are already ranking in the 1st or 2nd positi...
John Mueller May 14, 2020
★★ Is it true that mobile-first indexing is stuck: how long until automatic unlocking?
When a site receives a mobile-first block notification for desktop/mobile asymmetry, Google automatically reevaluates the site after correction. There is no manual re-test function, but the systems re...
John Mueller May 14, 2020
★★★ Does mobile-first indexing really improve your ranking on Google?
Mobile-first indexing is a purely technical process for indexing content. It does not mean a better ranking in search results or priority in mobile results, contrary to a common misconception....
John Mueller May 14, 2020
★★ Should you really abandon the FAQ schema on single-question product pages?
You can mark each question of a FAQ on a dedicated page with FAQ schema. However, Google primarily displays the FAQ rich snippet when multiple questions are present on the same page. With only one que...
John Mueller May 14, 2020
★★ Why are multilingual footer links crucial on every page?
Placing links to language variants in the footer of every page (including blog, categories, products) helps both users and Google discover and associate translated versions. These links should not be ...
John Mueller May 14, 2020
★★ Does Google flag missing images on mobile: Should you ignore these alerts if your mobile version is intentionally different?
Google may report missing images on mobile even if the webmaster considers this difference intentional and acceptable (e.g., fewer associated products displayed). If the mobile version aligns with you...
John Mueller May 14, 2020
★★ Can you really combine canonical and noindex without risk?
Combining canonical and noindex on the same page is theoretically contradictory (one says 'index the other', the other says 'don’t index anything'). In practice, Google does not block this dual signal...
John Mueller May 14, 2020
★★★ Does mobile-first indexing really impact your page rankings?
Mobile-first indexing is a purely technical process that determines which version (mobile or desktop) Google indexes. It does not involve any ranking advantages or penalties in search results, nor any...
John Mueller May 14, 2020
★★ Can you really combine canonical and noindex without risking your SEO?
Using both rel=canonical and noindex on the same page is theoretically contradictory (one directs indexing, the other blocks it), but in practice, it poses no issue: noindex simply forces non-indexati...
John Mueller May 14, 2020
★★★ Is Google automatically switching back to mobile-first after fixing asymmetry errors?
When an asymmetry between mobile and desktop versions prevents the activation of mobile-first indexing, Google automatically reassesses the site after corrections are made. There is no manual function...
John Mueller May 14, 2020
★★ Do UTM parameters really cause Google to index duplicate content?
URLs with UTM parameters (Facebook, Twitter) can be indexed as duplicates even if the canonical is correct. Google will eventually consolidate these versions to the canonical version. To accelerate or...
John Mueller May 13, 2020
★★★ Does the URL removal tool truly deindex your pages?
The URL removal tool in Search Console hides URLs from search results but does not immediately remove them from the index. They continue to be counted in the Index Coverage report until Google fully r...
John Mueller May 13, 2020
★★ Does the URL Parameter Tool really consolidate all signals as Google claims?
By configuring a parameter as 'Representative URL' in the Search Console parameter tool, Google consolidates all signals from URLs with that parameter to a unique representative version. This can redu...
John Mueller May 13, 2020
★★★ Does Hreflang really only affect displayed URLs while Google insists on indexing just one version?
Hreflang does not influence indexing: Google may index a single version of similar content (canonical), but displays the appropriate URL based on the search country. In Search Console, only the canoni...
John Mueller May 13, 2020
★★★ Why does Google refuse to index all your pages, and how can you fix it?
Google does not promise to index all pages on the web. On a new site with a sudden influx of content, systems may be cautious and limit crawling and indexing. Submitting via Inspect URL does not guara...
John Mueller May 13, 2020
★★★ Is the site: command really useless for diagnosing indexing?
The number of results displayed by the site: command is optimized for speed, not accuracy. To diagnose indexing, one must rely on the Index Coverage report from Search Console, which accurately reflec...
John Mueller May 13, 2020
★★ The 50,000 URLs in a sitemap: why does this limit not mean what you think it does?
The limit of 50,000 URLs in a sitemap applies only to the main URL tags (loc tag), not to additional attributes like hreflang, images, or videos. There is also a file size limit. You can create multip...
John Mueller May 13, 2020
★★★ Why does your hreflang markup still not work despite your efforts?
For hreflang to work, Google must see the markup on both linked pages. If an English page points to a Spanish page, the Spanish page must also point to the English page. If the language versions are i...
John Mueller May 13, 2020
★★★ Why do old URLs stay indexed after a 301 redirect?
When changing a URL with 301 redirects, Google does not remove the pages from the index: it simply switches from the old URL to the new one as canonical. If traffic massively drops after a migration, ...
John Mueller May 13, 2020
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