SEO: why human content is regaining the upper hand against AI on Google

A Semrush study carried out on 42,000 pages of French sites has just confirmed it : after Google's latest core update, sites that rely on human-written content are 8 times more likely to reach the top position than those that depend on mass automatically generated content. A strong signal for all SEO professionals, as the search landscape is rapidly evolving in France.

Google tightens the grip on mass-produced content

Since the beginning of 2026, Google has rolled out several core updates that have significantly reshuffled the rankings. The search engine's stated goal : better identify and devalue pages created primarily to manipulate rankings rather than to answer a genuine search intent. Volume-produced content, without real editorial added value, are the first victims.

This tightening comes as the search context itself has changed : Google launched AI Overviews and AI Mode in France on 22 July 2026, two years after their launch in the United States. On informational queries, several international studies already measure a clear decline in the click-through rate to sites, up to 47.5 % on desktop according to a study conducted in the United Kingdom. In this more contested organic traffic context, editorial quality becomes a decisive differentiator rather than a mere comfort argument.

Brand reputation, a new lever of trust

Another finding of the study : the AI models that power search summaries rely heavily on a brand's online reputation to assess its reliability. Being cited, mentioned, or picked up by sources recognized as authoritative – press, institutions, sector reference sites – therefore becomes an indirect but increasingly decisive SEO lever.

• Favor original editorial writing rather than producing content in volume.
• Work on entity signals and the clarity of the topic addressed on each page.
• Develop brand mentions on sources recognized as reliable.
• Recalibrate dashboards to track impressions and clicks by query intent rather than just overall traffic.

Commercial queries, still relatively unaffected

Good news for e-commerce sites : queries with a transactional intent remain, for now, less exposed. Only 4 % of e-commerce queries trigger an AI-generated overview today, versus 29 % at the time of the feature's launch on the first equipped markets. Product pages, comparison pages and price tables therefore continue to play a central role in the purchase journey, while purely informational content must reinvent itself.

What this means for agencies and in-house teams

For web marketing teams, content strategy can no longer be limited to producing more : it must produce better, with identifiable and verifiable expertise. This also implies coherent technical choices on the site development side – data structuring, display speed, clear markup – so that editorial quality is properly valued by search engines as well as by their generative summaries.

Frequently asked questions

What is a Google core update?

A core update is a major update to Google's algorithm that can significantly reshuffle search result rankings. Since early 2026, several of these updates have primarily targeted mass-produced content with no real editorial value.

Is AI-generated content penalized on Google?

It is not the use of AI per se that is targeted, but the production of low-value-added content intended to manipulate rankings. According to the Semrush study, human-written content retains a clear advantage : 8 times more likely to reach the top position.

Do Google's AI Overviews really reduce site traffic?

On informational queries, yes : several studies measure click-through rate declines that can exceed 40 % when an AI-generated overview appears at the top of the results. Transactional queries, such as e-commerce searches, remain much less affected.

Sources

Semjuice · Abondance · Natural Net

This article was written with the help of artificial intelligence. Editorial policy