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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★★ Should you really be analyzing your JavaScript bundles with webpack to boost SEO performance?
Google encourages the use of tools like webpack bundle analyzer to identify large and unnecessary packages that bloat pages, making it possible to optimize JavaScript bundles....
Martin Splitt Dec 29, 2022
★★★ Is latency really killing your conversions and SEO performance?
Latency issues on product pages can lead to a drop in user retention and diminish SEO performance. Google observes that users quickly leave pages that take too long to load....
Martin Splitt Dec 29, 2022
★★★ Do XML Sitemaps Really Guarantee Your Pages Will Be Indexed by Google?
Gary Illyes explained on LinkedIn that XML Sitemaps provide clues to Google about submitted URLs, but that this does not provide a guarantee of indexing for these pages......
Gary Illyes Dec 27, 2022
★★ Can you really rank on Google without HTTPS and fast page speed?
Although it is recommended to have a fast site and operate in HTTPS, these elements are not absolute requirements to appear in Google search results. They are part of important best practices but thei...
Gary Illyes Dec 22, 2022
★★★ Does Google really distinguish between "absolute requirements" and "best practices" in SEO?
Not spreading spam is identified as an absolute requirement, unlike other factors such as site speed or HTTPS which are important but not mandatory. The distinction between spam policies and best prac...
Gary Illyes Dec 22, 2022
★★★ Why did Google split its guidelines into strict rules and simple recommendations?
The old Webmaster Guidelines, which existed for 20 years, have been restructured to separate strict requirements (spam policies) from recommended best practices. This modularization makes it possible ...
Lizzi Sassman Dec 22, 2022
★★ How is Google now displaying website names in search results?
Google has launched a new way to display website names in search results. Website names facilitate the identification of websites and are now much more visible, while also giving slightly more space t...
John Mueller Dec 21, 2022
★★★ Is Google's shift from Webmaster Guidelines to Search Essentials just a rebrand, or does it signal something bigger?
Google has transformed its Webmaster Guidelines into Search Essentials. These directives include minimum technical requirements, anti-spam policies with new sections on deceptive features, scams, frau...
Lizzi Sassman Dec 21, 2022
★★★ Should You Block Crawling in Robots.txt to Quickly Deindex a Site?
John Mueller indicated on Reddit that simply blocking crawling of a site via robots.txt (Disallow: / directive) is not the fastest solution for deindexing a site: "Even if you block all crawling, it w...
John Mueller Dec 19, 2022
★★★ Can a 5xx Error on Your robots.txt Really Make Your Entire Site Disappear from Google?
Gary Illyes explained on LinkedIn that if your robots.txt file returns a 5xx code (such as 500 or 503) for a certain period of time, this can have a disastrous consequence with the eventual removal of...
Gary Illyes Dec 19, 2022
★★★ Should You Really Update Your Content Publication Dates to Improve SEO Rankings?
John Mueller explained on Twitter that it's important to change the publication date of content only if it has been substantially modified and the changes made to the text are significant, adding that...
John Mueller Dec 12, 2022
★★★ Should You Really Abandon HTML Sitemaps for Users?
John Mueller, on Mastodon this time, explained that, in his opinion, HTML Sitemaps or site maps for users should never be necessary: "Sites, small and large, should always have a clear navigation stru...
John Mueller Dec 12, 2022
★★ Can AI-Modified Scraped Content Really Slip Past Google's Spam Filters?
Duy Nguyen, another SEO spokesperson for Google, in the same hangout as above, responded to a question about texts scraped from the Web then modified using artificial intelligence algorithms before be...
Google Dec 05, 2022
★★★ Could Google Really Be Spammed From Its Earliest Days?
An amusing anecdote from Google's early days recently resurfaced on Hacker News, where Matt Cutts, former head of Google's webspam team, recounts how he had to battle with the two co-founders, Sergey ...
Matt Cutts Nov 28, 2022
★★★ Why do domain mergers and divisions trigger extended SEO ranking swings?
During domain mergers or divisions, Google must reevaluate page importance and internal linking structure, which leads to long-term ranking fluctuations. These changes are more complex than a simple d...
John Mueller Nov 17, 2022
★★ Are 307 and 308 redirects really pointless for classic SEO?
HTTP codes 307 and 308 also transfer POST requests, unlike 301 and 302 which only transfer GET requests. Useful for APIs but with no direct SEO impact since APIs are generally not indexed....
John Mueller Nov 17, 2022
★★ Why does the URL Inspection Tool show a 200 status code even after a redirect?
The URL Inspection Tool in Search Console displays a 200 status code for the final URL after redirect, because it shows what will be indexed. It automatically follows HTTP and JavaScript redirects to ...
John Mueller Nov 17, 2022
★★★ Do you really need to redirect every single URL individually during a domain migration?
To migrate a domain, you must redirect all pages one by one (1:1 mapping) to the new domain. This allows you to transfer the signals and trust associated with the old URLs to the new ones....
John Mueller Nov 17, 2022
★★★ Do you really need bidirectional redirects between mobile and desktop versions to avoid indexing issues?
For sites with separate mobile and desktop versions, you must implement redirects in both directions: mobile to m.domain.com AND desktop to www.domain.com. Without this, Google assumes everything is o...
John Mueller Nov 17, 2022
★★★ Does Google really follow JavaScript redirects the same way as server-side redirects?
JavaScript redirects are detected and followed by Google during page rendering. They constitute a valid alternative when you don't have access to server configuration....
John Mueller Nov 17, 2022
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