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 mobile-first indexing really work without a mobile version?
Mobile-first indexing is independent of mobile compatibility. Even sites without a mobile version can be properly indexed by the mobile Googlebot....
John Mueller Aug 21, 2019
★★★ Is it possible to refuse mobile-first indexing to protect your desktop site?
Google does not plan to provide an option to choose or refuse mobile-first indexing. The long-term goal is to move all sites to this type of indexing....
John Mueller Aug 21, 2019
★★★ Should you really block your admin pages in robots.txt to save on crawl budget?
It is wise to use robots.txt to restrict the indexing of unnecessary pages such as admin or calendar pages, in order to decrease unnecessary traffic to the server....
Google Aug 16, 2019
★★★ How can you effectively verify your robots.txt file to avoid crawl errors?
To verify your site's robots.txt file, you can do so directly via your browser by accessing the dedicated URL or use the robots.txt testing tool in Google Search Console....
Google Aug 16, 2019
★★★ Why isn't robots.txt a reliable security tool for your site?
The robots.txt file should not be used to secure sensitive pages. Pages that must not be publicly accessible must be protected by security systems such as password authentication....
Google Aug 16, 2019
★★★ Should you really allow Googlebot to access your CSS and JavaScript?
Avoid blocking resources like CSS or JavaScript files in your robots.txt file, as this can prevent search engines from properly rendering the website....
Google Aug 16, 2019
★★★ Do you really need a robots.txt file to control your site's indexing?
The robots.txt file allows you to set rules for controlling indexing bots' access to different parts of a website. While not essential, its absence means all pages can be crawled by default....
Google Aug 16, 2019
★★★ Does Google Really Index Parts of Pages or Always the Entire Content?
The same John Mueller indicated on Twitter that Google always indexes a page in its entirety and never "bits" or parts of HTML code....
John Mueller Aug 12, 2019
★★★ Are JavaScript Redirects Really Safe for Your SEO?
Third episode of the #AskGoogleWebmasters videos, which this time addresses the question of JavaScript redirects. John Mueller explains that Googlebot understands JS redirects well during its crawls a...
John Mueller Aug 12, 2019
★★★ Is the Search Console API misleading you about your indexed pages?
Since April, the Search Console API has had incorrect indexed count data. Be aware that this information should not be considered valid at this time....
John Mueller Aug 09, 2019
★★★ Does the mobile-friendly test really guarantee the indexing of your JavaScript?
If your content is visible in Google's mobile-friendly test, it is generally well indexed. However, the mobile-friendly test does not follow the robots.txt file. Use the URL inspection tool in Search ...
John Mueller Aug 09, 2019
★★★ Should you really treat Googlebot like an American user?
You must treat Googlebot the same way as any other user in the same region. Googlebot mainly crawls from the United States. If your site is in Europe and blocks American users, you will also block Goo...
John Mueller Aug 09, 2019
★★ Why does Google crawl your pages without indexing them?
High-quality content makes exclusion after crawl unlikely. However, various causes beyond quality can explain a lack of indexing....
Google Aug 09, 2019
★★ Do chained 301 redirects really blow your crawl budget?
Multiple 301 redirects can prolong the crawl time of a page and affect the crawl budget on large sites. Fixing links to point directly to the final destination is a better use of crawl resources....
John Mueller Aug 09, 2019
★★★ Do excluded pages in the index really consume your crawl budget?
Excluded pages count towards the crawl budget, but they are crawled much less frequently than valid pages. If a site is nearing its crawl limit, important pages take priority....
John Mueller Aug 09, 2019
★★ How does Google really manage crawling for duplicate URLs pointing to different products?
Google is developing solutions to properly address identical URLs targeting different products, using unique meta-mechanisms for each item wherever possible....
Google Aug 09, 2019
★★★ Is embedding Instagram images via iframe really undermining their SEO potential?
Embedding images via Instagram complicates their indexing, as Instagram utilizes iframes and no-image-index meta tags. This suggests a decrease in search image traffic for these....
John Mueller Aug 09, 2019
★★ Is it true that Google removed the discovery of blocked resources in Search Console?
The old version of Google Search Console allowed for the discovery of blocked resources, a feature that has been removed as fewer sites face mobile issues related to resources blocked by robots.txt. H...
John Mueller Aug 09, 2019
★★★ How does Google really handle multiple sitemaps and their URL order?
Google treats each sitemap as a data source. The content is stored before actions are taken based on the natural order of URLs in each sitemap....
Google Aug 09, 2019
★★ Could your mobile navigation be harming your mobile-first indexing SEO?
When Google switches a site to mobile-first indexing, it relies on the mobile version for crawling and indexing. Navigation must be mobile-friendly to ensure good SEO....
John Mueller Aug 08, 2019
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