What does Google say about SEO? /
The Content category compiles all official Google statements regarding textual content creation, optimization, and evaluation in the context of search engine optimization. It encompasses fundamental aspects such as editorial quality, E-E-A-T criteria (Experience, Expertise, Authoritativeness, Trustworthiness), duplicate content issues, and thin content concerns. Google's positions on these topics are critical for understanding how algorithms assess the relevance and added value of web pages. This category also includes recommendations on structural elements like headings (H1, H2, Hn tags), meta descriptions, and semantic optimization. With the introduction of the Helpful Content system, Google has reinforced the importance of a user-first approach rather than a search engine-first methodology. SEO professionals will find here official guidance for creating content that meets algorithmic expectations while delivering genuine value to users, a balance that has become essential for achieving and maintaining strong rankings in search results. These declarations provide clarity on content strategies that align with Google's evolving quality standards and ranking factors.
★★★ Why can't anyone truly master SEO 100%?
John Mueller stated that SEO is not a matter of belief, that no one knows everything, and that practices are continually evolving. He also claimed that anyone calling themselves an "SEO guru" is, in h...
John Mueller Apr 28, 2026
★★ Can we really afford to do anything in SEO without facing consequences?
On Bluesky, Google's John Mueller stated that because SEO is complex, multifaceted, and resilient, you "can do a lot of things that don't work, but still get away with it." In summary, you can make mi...
John Mueller Apr 28, 2026
★★ Should you offer Markdown versions of your content to enhance your visibility in AI-generated results?
An SEO consultant saw claims circulating that Google Search Central would serve Markdown versions of its blog articles to boost its visibility in AI-generated results. He delved into the topic, inspec...
John Mueller Apr 21, 2026
★★★ Can Google really ignore all links from a spammy site?
John Mueller reminds us that if a site violates Google's anti-spam policies, its outgoing links can simply be ignored altogether by Google. In other words, a site considered spammy no longer transmits...
John Mueller Apr 21, 2026
★★★ Could a domain name similar to a competitor harm your SEO?
A webmaster was concerned about having a domain very close to another (only one letter difference). John Mueller responds that this is generally not an issue for SEO in itself. The only real risk iden...
John Mueller Apr 21, 2026
★★★ Does Markdown Really Work for SEO, or Should You Always Use HTML Instead?
On LinkedIn, someone asked John Mueller whether Google treats .md pages (that is, Markdown) differently from standard HTML pages, and more specifically whether they are properly rendered and accessibl...
John Mueller Apr 14, 2026
★★★ Why does Google stagger Core Updates over multiple weeks instead of releasing them all at once?
John Mueller explains that Core Updates are not deployed all at once, but in stages, because they affect multiple systems and components that must be pushed out progressively. He also clarifies that t...
John Mueller Apr 07, 2026
★★★ Should you really avoid using unique canonicals on multi-page e-commerce sites?
On LinkedIn, Rowan Collins, SEO Consultant, exchanged with John Mueller on a specific point about e-commerce structured data. For a multi-page site, each product variant with its own URL should not be...
John Mueller Mar 31, 2026
★★★ Does Googlebot really stop crawling after 15 MB per URL?
By default, Googlebot retrieves 15 megabytes of raw content per URL, then stops. This limit applies to each URL individually: if your HTML references other resources, those resources each have their o...
Martin Splitt Mar 30, 2026
★★★ Is mobile-desktop mismatch really destroying your SEO rankings right now?
During the shift to mobile-first indexing, Google observed that a large number of pages showed differences between mobile and desktop versions (distinct URLs). Content was often missing on mobile, alo...
Martin Splitt Mar 30, 2026
★★★ Is content disparity between mobile and desktop killing your rankings in mobile-first indexing?
During mobile-first indexing, Google has found that a large number of pages present significant differences between their mobile and desktop versions: missing content, absent links, different navigati...
Martin Splitt Mar 30, 2026
★★★ Does Googlebot really cap crawling at 15 MB per URL?
By default, Googlebot retrieves 15 megabytes of raw content per URL, then stops. This limit applies to each URL individually: if your HTML references other resources, those also have their own 15 MB l...
Martin Splitt Mar 30, 2026
★★ Is lazy loading really a must-have SEO performance lever you should activate systematically?
Lazy loading (deferred loading) allows you to load only heavy resources such as images when the user scrolls toward them, rather than loading everything upfront. This reduces the initial page load....
Gary Illyes Mar 30, 2026
★★★ Why is mobile-desktop parity sabotaging your rankings in Mobile-First Indexing?
When transitioning to Mobile-First Indexing, Google observed that a large number of pages lacked parity between mobile and desktop versions. Content was missing, links were absent, navigation and meta...
Martin Splitt Mar 30, 2026
★★★ Is your desktop content disappearing from Google rankings because it's missing on mobile?
If content present on the desktop version is missing from the mobile version, the site won't be able to rank for queries related to that missing content, because mobile-first indexing prioritizes the ...
Martin Splitt Mar 30, 2026
★★ Does your website's overall size really hurt your SEO performance?
In the context of weight and size, it's more relevant to talk about webpages rather than websites. The notion of a 'heavy site' doesn't really make sense in SEO — it's the weight of individual pages t...
Gary Illyes Mar 30, 2026
★★★ Is your mobile site missing critical content that exists on desktop?
During the rollout of mobile-first indexing, Google observed numerous cases where mobile and desktop versions of the same content (different URLs) presented significant gaps: missing content, absent l...
Martin Splitt Mar 30, 2026
★★ Is lazy loading really essential to optimize your initial page weight and boost Core Web Vitals?
Lazy loading allows you to load only images and heavy content that are actually visible or near the user's viewport, rather than loading everything upfront, thereby reducing the initial weight of the ...
Martin Splitt Mar 30, 2026
★★★ Does Googlebot really stop crawling after 15 MB per URL?
By default, Googlebot fetches 15 megabytes of raw content per URL, then stops. This limit applies individually to each URL: if an HTML page references external resources, each of those resources also ...
Martin Splitt Mar 30, 2026
★★★ Does the 15 MB Googlebot crawl limit really kill your indexation, and how can you fix it?
Googlebot retrieves a default of 15 megabytes of raw content (raw bytes) per URL, then stops. This 15 MB limit applies to each URL individually: if your HTML references other resources, each one has i...
Martin Splitt Mar 30, 2026
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