Technical SEO & GEO consultant

I turn your rankings into revenue.

More visibility, more leads, less friction. I combine technical SEO, content strategy, premium link building and AI search optimization so you rank where it actually pays, on Google and inside the new generation of AI engines.

What I do

Full-stack organic growth, built on data, not slides.

One senior point of contact from strategy to execution. No juniors, no fluff, no reports for the sake of reports. Every action is tied to keywords that generate revenue.

The focus · GEO

Get cited by AI, not just ranked by Google.

Generative Engine Optimization makes your brand the answer inside ChatGPT, Perplexity, Gemini and Google AI Overviews. As search shifts to AI, the sites that win are the ones the models trust and quote. I structure your content, entities and authority so you are the source they pull from.

ChatGPT Perplexity Gemini Claude AI Overviews
  • Entity & brand authority engineering
  • Answer-ready, citation-friendly content
  • Structured data & schema for machines
  • Monitoring of LLM mentions & share of voice

Technical SEO

Lifting the invisible brakes that block Google: JavaScript rendering, crawl budget, indexation, Core Web Vitals and clean architecture.

Content Strategy

Semantic cocoons and revenue-driven content that ranks and converts, not volume for the sake of nice-looking graphs.

🔗

Link Building

Premium, targeted backlinks that close the authority gap with your competitors and strengthen brand awareness.

📍

Local SEO

Capture customers searching around you with optimized Google Business profiles and geo-targeted visibility.

🚀

Migrations & Redesigns

Secure, zero-downtime migrations and replatforming that protect, and grow, the rankings you already earned.

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Audits & Strategy

A clear, prioritized roadmap of quick wins and structural fixes, so you know exactly where to invest first.

Proof, not promises

A success story I led from crisis to record growth.

Case study · Trackstone

How a real-estate platform beat its records after a brutal Google update.

After the March 2025 update, Trackstone lost roughly 30% of its organic traffic, pushed down the SERP by new AI and PAA modules despite holding its positions. I rebuilt the technical foundations, fixed JavaScript and crawl issues, and diversified the content to remove the single-point-of-failure dependency on a few articles.

+60%
Organic traffic vs. low point
4 mo.
To reverse the trend
1000+
Daily clicks, a new record
"In the middle of summer, usually a slow month, we had our biggest month ever in terms of bids accepted. There's clearly a strong correlation with SEO performance." Nina Moritz, CMO at Trackstone

Read the full case study ↗

How I work

Three pillars, one outcome: measurable growth.

1

Diagnose

A deep technical and semantic audit pinpoints what blocks Google and the LLMs, then ranks every fix by business impact.

2

Build

I fix the foundations, ship revenue-focused content and structure your authority so both search engines and AI models trust you.

3

Compound

Continuous testing, monitoring and link acquisition turn early wins into durable, defensible growth, not a one-off spike.

Technical SEO & GEO Expert
Nicolas Sanchez

The consultant brought in when a site is too complex, too technical, or too far gone for anyone else to move the needle.

SpecialtyTechnical SEO & GEO
Modern frameworksJS / SSR / crawling
StartedBlack hat, age 14
BasedWorldwide, remote-first
View LinkedIn profile ↗

SEO is driven by data and experimentation, not by slides and promises.

I found SEO as a teenager, more than ten years ago, deep in the black-hat forums, reverse-engineering algorithms just to see how far they could be pushed. I learned how Google really works by breaking it first.

That instinct never left, only the methods changed. Today I put the same obsession into clean, durable, white-hat growth: technical optimization of complex sites, a precise command of modern JavaScript frameworks, crawling and indexation, and the new frontier of GEO, getting brands cited inside the AI engines.

My conviction is simple. I don't aim to bring you traffic just for nice-looking graphs. I focus the effort on keywords with real business potential, the ones that generate revenue, not just volume. If it doesn't translate into leads or revenue, it's useless.

You won't find my name on most of the projects I'm proudest of, and that's the point. The rankings do the talking; I stay behind them. One senior point of contact, A to Z: strategy, production, monitoring. No juniors, no reports gathering dust.

Start with a free audit
Let's talk

Ready to boost your visibility?

Tell me about your project. I'll come back with a free, no-strings audit and an honest view of your growth potential, on Google and in AI search.

nicolas@sanseo.fr
🗺 Worldwide · remote-first

I usually reply within one business day.