TeknSEO is part of the technical meetings on natural referencing in France, bringing together R&D, audit, and experimentation-oriented profiles at each edition. The 2026 edition sparked unusual discussions around one name: Cedric Guerin, an SEO consultant based near Rennes and founder of the agency Dyez. What fuels the exchanges is not a controversy, but the convergence between an atypical profile and the topics that structure the event this year.
TeknSEO 2026 and the place of GEO in the program
The 2026 edition of TeknSEO takes place in a context where the boundary between classic SEO and optimization for generative engines (GEO) becomes a concrete working topic. A GitHub repository associated with a conference at the event describes a method to test if a brand appears in the weighting of language models. The proposed script works via command line, in Colab, or through a dedicated interface.
This type of technical contribution sets the tone: TeknSEO 2026 is not limited to keynote presentations. The event values reproducible approaches, testing protocols, and documented field feedback. It is precisely this positioning that makes the presence of certain consultants more commented on than others.
It should be noted that the available public sources do not formally confirm the complete program for the 2026 edition. The absence of a name in the consulted excerpts does not mean it is not included, but prevents any categorical assertion about the exact role of each speaker.
Cedric Guerin and the Dyez agency: a profile rooted in Breton SEO
Cedric Guerin leads Dyez, an SEO agency located on the outskirts of Rennes. His background combines several facets: technical SEO, creation of tools (notably around Excel applied to SEO), and support for local small businesses. He has also gained attention through work stints abroad, particularly in Chiang Mai, a well-known hub for the international SEO community.
What distinguishes his recent approach is the integration of GEO into his consulting practice. The majority of SEO providers continue to work on the triptych of technical, content, and link building. Guerin has directed part of his activity towards optimization for responses generated by AI engines (ChatGPT, Perplexity, Gemini).
Since the deployment of AI Overviews in France, Cedric Guerin’s presence at TeknSEO 2026 can be partly explained by this specialization in a still poorly defined area.
His positioning is also based on a principle of skill transfer rather than dependency: training the internal teams of his clients to understand the mechanisms of SEO, rather than maintaining an opaque service relationship over time.
Why this presence at TeknSEO fuels SEO discussions
Several elements converge to explain the attention given to this consultant in the context of TeknSEO 2026.
- The topic of GEO remains polarizing within the French SEO community. Some professionals believe that optimization for generative engines is still experimental, while others see it as a strategic axis to integrate right now. A consultant who claims this specialty at a technical event naturally attracts debate.
- Guerin’s profile combines local grounding (Rennes, network of Breton small businesses) and influence in international SEO circles. This dual positioning is rare enough to be noticed at a predominantly technical event.
- TeknSEO values documented and testable approaches. However, the Dyez agency has historically shared practical resources (Excel tools, scraping methods). This type of contribution aligns with the event’s format, making participation coherent but also scrutinized by peers.
The discussion therefore does not revolve around a controversy in the classical sense. It rather reflects a substantive debate on the legitimacy of GEO as a standalone discipline within natural referencing.
The limits of what can be verified
It must be acknowledged that there is a gray area: detailed programs for TeknSEO are not always published well in advance, and the publicly accessible sources to date do not allow for confirmation of the exact format of Guerin’s intervention (conference, workshop, round table). The absence of official confirmation in the consulted excerpts leaves a degree of uncertainty regarding the precise scope of his participation.
Furthermore, several SEO and GEO events are taking place in France at the same time, which can create confusion. The SEO GEO Summit 2026, for example, is a distinct event from TeknSEO. The themes reported for one should not be attributed to the other without verification.
GEO and SEO in 2026: what Guerin’s presence reveals about the market
Beyond the individual case, the interest generated by a consultant specialized in GEO at an event historically focused on technical SEO says something about the state of the market. Google’s AI Overviews are changing the way results are consumed. A site’s visibility is no longer measured solely by its position in the blue links.
Consultants who integrate this dimension into their offerings find themselves at the forefront of a debate that transcends pure technique:
- How to measure a brand’s visibility in responses generated by a language model when traditional tracking tools do not yet cover this area?
- What level of proof should be required from a GEO strategy before recommending it to a client?
- How to articulate traditional SEO and GEO without diluting the resources of a small business with a limited budget?
These questions do not have stabilized answers. The fact that they are raised in the context of TeknSEO, and that profiles like Guerin’s are associated with it, shows that GEO has moved from being a curiosity to a structuring subject for the profession.
The attention given to this participation ultimately relates less to the individual than to what they embody: a segment of the SEO market that is reorganizing around new visibility formats, without the measurement methods and standards being firmly established yet. TeknSEO 2026 will likely serve as a marker for what comes next.
