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 migrate a complex website in phases rather than all at once?
For complex migrations involving multiple domains or TLDs, it is recommended to proceed in phases rather than migrating everything simultaneously. This reduces the risk of organic traffic loss....
Gary Illyes Feb 23, 2023
★★ Can a domain with a problematic past secretly tank your SEO performance for an entire year?
If a site migrates to a domain with a problematic history, even with a correct migration, it can take up to a year for the situation to stabilize completely in search results....
John Mueller Feb 23, 2023
★★★ Should you really avoid combining domain migration and complete redesign at the same time?
It is strongly inadvisable to combine a domain migration with a complete site redesign and URL restructuring. The more simultaneous changes you make, the greater the risks of errors and difficulties i...
Gary Illyes Feb 23, 2023
★★★ Can You Really Use a 301 Redirect Between Pages in Different Languages?
In a brief conversation posted on Mastodon, Gary Illyes from Google indicated that the 301 redirect (permanent redirect) was required when two URLs are almost identical. So far, nothing new. But where...
Gary Illyes Feb 20, 2023
★★★ Have EMD Domain Names Become a Liability for Your SEO?
John Mueller confesses: he's not really a fan of EMDs (Exact Match Domains) which, according to him, can potentially compromise a site's sustainability. In addition to appearing as a spammer in everyo...
John Mueller Feb 20, 2023
★★ Should you really start your SEO audit with your browser and Search Console?
Google recommends using your web browser combined with Google Search Console tools to perform a first quick and efficient analysis of your website before diving deeper into other SEO aspects....
Google Feb 16, 2023
★★★ Is it absolutely necessary to migrate to JSON-LD for your structured data?
Google has updated its online documentation regarding structured data markup and reminds us that the 3 available formats (JSON-LD, Microdata, and RDFa) are "equally accepted by Google, provided they a...
Google Feb 13, 2023
★★ Could removing obsolete URLs from your sitemaps actually boost your SEO?
It is recommended to gradually remove obsolete URLs from XML sitemaps instead of keeping them indefinitely. This facilitates management and reduces the size of sitemap files over time....
Google Feb 09, 2023
★★ Do your JSON files really need to be indexed?
For resource files (like JSON files used by JavaScript), there's no need to make them directly accessible via URL if Google can read them through JavaScript. There's no need for specific configuration...
Google Feb 09, 2023
★★★ Why should you keep old URLs in the sitemap after a 301 redirect?
When changing URLs with 301 redirects, it is advisable to keep the old URLs in the XML sitemap until they disappear from Google's index. Once they are indexed under their new URL, they can be removed ...
Google Feb 09, 2023
★★ Is it true that the order of tags in an XML sitemap doesn't matter to Google?
In an XML sitemap, the order of tags (URL, last updated date, frequency, priority) is not important. Only the URL is mandatory. If Search Console processes the sitemap correctly, there are no issues e...
Google Feb 09, 2023
★★★ Does Googlebot really ignore scrolling and user interactions?
Googlebot does not interact with pages, which includes not only clicking but also scrolling. JavaScript code that depends on scroll events will therefore not be executed by Googlebot during exploratio...
Google Feb 07, 2023
★★ Does Google really analyze the DOM instead of raw HTML—and why does this matter for your rankings?
The Elements tab lets you search for content on the page and verify whether it's present or absent in the DOM, and where it's positioned. If content is missing from the rendered HTML in Search Console...
Google Feb 07, 2023
★★★ Does your browser's DOM really show what Google actually indexes?
The DOM (Document Object Model) visible in your browser's developer tools is the closest equivalent to the rendered HTML as displayed in Google Search Console tools....
Google Feb 07, 2023
★★★ Was Google really prioritizing HTML over JavaScript for crawling and indexing?
In 2015-2016, Google had difficulty indexing certain JavaScript frameworks like AngularJS. Websites built entirely in HTML were crawled and indexed faster than JavaScript-based sites, even though Goog...
Martin Splitt Feb 01, 2023
★★★ Why does Google recommend testing in real conditions rather than relying solely on documentation?
When facing unexplained issues or unexpected behaviors, creating controlled experiments with test domains allows you to understand Google's actual behavior rather than relying solely on documentation ...
Martin Splitt Feb 01, 2023
★★★ Is your JavaScript really being rendered by Google? Here's how to verify it with the honeypot method.
To verify whether Google is correctly rendering your JavaScript, create links accessible only via JavaScript that point to unique URLs, then analyze your server logs to confirm that Googlebot accesses...
Martin Splitt Feb 01, 2023
★★★ Why does Google take 3 to 6 months to index JavaScript content after crawling your site?
Even when Google crawls a JavaScript site quickly (a few weeks for 50-100K URLs), full processing and indexation of rendered content can take 3 to 6 additional months before being reflected in search ...
Martin Splitt Feb 01, 2023
★★ Is Google misleading you about JavaScript rendering, or just keeping things simple?
Statements like 'Google renders JavaScript like a modern browser' aren't false but represent simplifications. There are nuances and limitations that aren't always documented in detail....
Martin Splitt Feb 01, 2023
★★ Can JavaScript Really Be Indexed Faster Than HTML?
Contrary to expectations, some JavaScript pages can be indexed faster than their HTML equivalents, because Google runs indexing processes in parallel with different priorities depending on the type of...
Martin Splitt Feb 01, 2023
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