What does Google say about SEO? /
This category compiles all official Google statements regarding JavaScript and technical aspects of search engine optimization. Modern JavaScript frameworks (React, Angular, Vue.js) and web application architectures (SPA, SSR, CSR) present critical challenges for crawling and indexing. Google's guidance on JavaScript rendering, dynamic DOM manipulation, AJAX implementation, and API calls is essential for ensuring client-side content visibility. SEO professionals will find authoritative positions on implementation best practices, differences between server-side and client-side rendering, and recommendations for optimizing load times while guaranteeing content accessibility to search crawlers. Understanding data formats (JSON, XML) and their SEO implications completes this vital resource. These official declarations help prevent common technical implementation mistakes that can severely impact the search performance of modern websites and JavaScript-powered applications. Access to Google's verified positions on these technical matters enables practitioners to make informed architectural decisions and implement JavaScript solutions that maintain strong organic search visibility while delivering enhanced user experiences.
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★★★ Why is Google pushing for JSON-LD for structured data instead of other formats?
Use JSON-LD to add structured data to your pages because it is easier to implement. Test the tags with the available testing tools to ensure that they are properly indexed....
John Mueller Oct 04, 2019
★★ Are the Quality Rater Guidelines the key to surviving Google's health updates?
It's recommended to consult the Quality Rater Guidelines to understand how Google evaluates the quality of websites, particularly in the health sector, to adapt to algorithm updates....
John Mueller Oct 04, 2019
★★★ How can you ensure Google is correctly indexing your JavaScript?
To ensure correct indexing of JavaScript websites, use the URL inspector to check that Google can access JavaScript files and server endpoints. Follow Google's recommendations for JavaScript....
John Mueller Oct 04, 2019
★★ Should you buy your competitors' domains to boost your SEO?
Redirecting a competitor's domain can be useful if it brings significant direct traffic, but access to the disavow file requires verification in Search Console....
John Mueller Oct 03, 2019
★★★ Can Quality Raters really penalize your site?
Manual penalties are applied by Google's spam-fighting team and are visible in Search Console. Quality Raters do not impose penalties but help improve algorithms....
John Mueller Oct 03, 2019
★★★ Is it really necessary to consolidate your content on a single domain to rank?
Using redirects or rel=canonical between old and new domains transfers ranking signals. Google advises consolidating relevant content under a single domain to enhance its authority....
John Mueller Oct 03, 2019
★★ How long does it really take for Google to reindex after a site relaunch?
After a domain change or URL structure update, it is normal for Google to take some time to reindex the site. Old URLs may temporarily appear in search results, even if they redirect correctly....
John Mueller Oct 03, 2019
★★★ Does duplicate content really trigger a Google penalty?
Duplication of content across different domains does not automatically result in a penalty. Google can choose to index one of the versions rather than penalizing, and each case is handled individually...
Google Oct 02, 2019
★★★ Can Old Content Actually Hurt a New Website That Republishes It?
John Mueller explained on Twitter that there's no problem if content is older than the launch date of the site hosting it (example: a new domain name recovers content from a previous, now-abandoned ad...
John Mueller Sep 30, 2019
★★★ Can Googlebot really crawl user-initiated events?
Googlebot generally cannot explore user-initiated events such as SQL events or JavaScript events. To show this content to Googlebot, it is recommended to use dynamic rendering or HTML snapshots....
John Mueller Sep 27, 2019
★★★ Are spam backlinks truly ignored by Google?
Links from sites considered spam by Google are generally ignored by its algorithms. The Disavow file can be used to indicate which links should not be taken into account....
John Mueller Sep 26, 2019
★★ Can subdirectories really target multiple countries effectively on a generic TLD?
To target specific countries with a generic domain (TLD .com), subdirectories can be configured in Search Console for precise geographic assignment....
John Mueller Sep 26, 2019
★★★ Can the Quality Rater Guidelines actually improve the rankings of medical sites?
Medical sites can benefit from consulting Google's Quality Rater Guidelines to align their content with quality expectations, although these raters do not directly affect rankings....
John Mueller Sep 26, 2019
★★★ Is it true that Google is restricting review rich snippets? Which sites are now excluded from the SERP?
Google has limited review rich snippets to certain specific types and does not display reviews of entities hosted on the same website of the reviewed entity....
John Mueller Sep 20, 2019
★★★ Does JavaScript still hinder Google's crawling without server-side rendering?
Fully JavaScript sites must ensure they use distinct URLs and standard links. Google is getting better at crawling these sites, but compatibility should be ensured for proper indexing....
John Mueller Sep 20, 2019
★★★ Splitting or merging a site: why doesn’t Google transfer SEO value like it does with a simple move?
When a site is split into several new sites or several sites are combined, Google must reevaluate the whole, which is different from a simple domain transfer where redirects can effectively transfer a...
John Mueller Sep 20, 2019
★★★ Should you host your images on a CDN subdomain to optimize their indexing?
It is acceptable to use CDNs like Amazon S3 to host images used in sitemaps, but it is advised to employ a subdomain for more flexible URL management in case of a CDN change....
John Mueller Sep 20, 2019
★★★ Should you really keep your event pages online after the date?
Google recommends creating a persistent event page that serves as a landmark for all events to retain link value, rather than creating individual pages that disappear after the event, as this can lead...
John Mueller Sep 20, 2019
★★★ Do you really need to use JavaScript to redirect URLs with fragments (#)?
To change your URL structure, use JavaScript to create client-side redirects because server-side redirects do not work after the hash symbol, which is handled in the browser....
John Mueller Sep 17, 2019
★★★ Where Should You Place JSON-LD in Your HTML Code: Head or Body?
John Mueller, in a new video from his #AskGoogleWebmasters channel, explains that Google accepts several structured data markup formats, such as Microdata, RDFa, or JSON-LD. He answers a user's questi...
John Mueller Sep 16, 2019
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