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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★★★ Do modern JavaScript frameworks really harm your site's SEO?
The Googlebot must correctly render pages that are unavailable using modern frameworks like AngularJS or ReactJS for SEO to be effective. Tools like Fetch as Google in the Search Console help verify r...
Vincent Courson Feb 28, 2018
★★★ Is the speed of slow pages truly a penalty factor or just an SEO myth?
The page speed update primarily aims to penalize very slow pages rather than reward very fast ones. This means that only pages offering a very poor user experience due to their slowness will be impact...
Vincent Courson Feb 28, 2018
★★★ Are Schema.org Structured Data Really Essential for Your SEO in 2024?
Gary Illyes indicated at the Pubcon conference that structured data tags (Schema.org) were here to stay because they allowed Google to better understand the content of a page....
Gary Illyes Feb 26, 2018
★★ Why Are Hreflang Tags Considered the Most Complex Aspect of SEO?
John Mueller indicated on Twitter that "hreflang tags are one of the most complex aspects of SEO, if not the most complex. It seems as simple as a meta tag, but their implementation quickly becomes di...
John Mueller Feb 26, 2018
★★★ Could technical problems truly explain why you're not ranking?
Technical problems, such as the non-indexation of recent content, can be reasons why a site is not ranking well. It is advisable to check if web scraping is occurring correctly and if the content is s...
John Mueller Feb 23, 2018
★★★ Should you really exclude noindex pages from your XML sitemaps?
It is advised not to include pages with noindex in the sitemap files, as this creates confusion regarding indexing intent. Use noindex to quickly remove URLs from unwanted content....
John Mueller Feb 22, 2018
★★★ Does the choice between placing hreflang in the sitemap or on the page really impact processing speed?
Using hreflang tags in the sitemap and on the page is equivalent in terms of processing speed by Google. Choose the option that is most convenient based on your CMS and the structure of your site....
John Mueller Feb 22, 2018
★★★ Is it true that Google really indexes what your users see with JavaScript?
Google constantly improves its ability to render and index pages using JavaScript. However, it is essential to ensure that the rendered version accurately reflects the content visible to users....
John Mueller Feb 22, 2018
★★★ Is the Speed Update really targeting all sites, or just specific categories?
The Speed Update is set to launch in July, not January. It aims to evaluate how quickly content becomes visible to users and the server's response speed. This mainly impacts sites with rapidly varying...
John Mueller Feb 22, 2018
★★★ Why does Google take weeks to reassess major sites after a redesign?
Google regularly reviews sites. Changes may be understood more quickly on certain URLs, but overall, larger sites with numerous changes can take longer to be fully reindexed....
John Mueller Feb 20, 2018
★★★ Should You Change Your XML Sitemap Name Daily to Improve SEO Rankings?
John Mueller explained in a hangout that it's not a good idea to modify the name of your XML Sitemap files daily (for example with a date, like sitemap-2018-02-12.xml, etc.) with numerous redundant an...
John Mueller Feb 12, 2018
★★ Does Page Loading Speed Really Impact Your Page Indexing?
Regarding last month's Speed Update, John Mueller and Gary Illyes indicated on Twitter that while this new algorithm would affect page rankings on mobile, it does not impact indexing in any way. A slo...
John Mueller Feb 05, 2018
★★ Are PWAs Really More Complex than AMP for SEO?
Progressive Web Apps (PWAs) require specific SEO considerations because they rely on JavaScript. Ensure that Googlebot can index the content requiring JavaScript rendering. PWAs can be more complicate...
John Mueller Feb 02, 2018
★★★ Why do the indexing figures from Search Console contradict the site: query?
The difference between the figures in Search Console and the site: query is that the site query is an approximate estimate, while the indexing status from Search Console is more accurate. The sitemap ...
John Mueller Feb 02, 2018
★★★ Is AMP still useful for boosting your SEO performance?
AMP is a fast framework that provides effective caching and possible pre-rendering, which can enhance page speed and potentially SEO. Although AMP is not necessary for visibility, it offers an efficie...
John Mueller Feb 02, 2018
★★ Should You Include GPS Coordinates in Structured Data for Local SEO?
John Mueller explained in a hangout that the search engine does not take into account Schema.org structured data tags providing GPS coordinates in its algorithm....
John Mueller Jan 29, 2018
★★ Should you really mark up each customer review individually with structured data?
For structured data markup of reviews, it is not necessary to mark each review individually. An aggregate rating schema can be used to aggregate scores if the volume of reviews is significant....
Google Jan 26, 2018
★★★ Does asynchronous CSS truly enhance speed perception for SEO?
Loading CSS files asynchronously can improve the perception of loading speed, allowing the page to start rendering faster....
Google Jan 25, 2018
★★★ Can DNS prefetching really speed up your site and enhance your Core Web Vitals?
DNS preloading translates a domain name into an IP address before it is required, which improves loading speed when the resource is requested later....
Google Jan 25, 2018
★★★ Why does Google recommend testing your pages on a fast 3G connection?
Google recommends using WebPagetest.org to test the loading speed of pages. Emulating a fast 3G connection is advised for obtaining a realistic assessment, as it represents a more demanding scenario f...
Google Jan 25, 2018
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