An agentic website is a site that keeps working between updates: it feeds itself with content automatically, it is built to be read and cited by Google as well as ChatGPT, Gemini or Claude, and it turns visitors into booked meetings without human intervention. It is the generation that follows the brochure website: people no longer just look at it — it acts.
The term is not a fad. It describes a concrete shift in how your customers find you: a growing share of searches now goes through an AI assistant that reads websites on the user's behalf and recommends a provider. A site designed only to be looked at by a human is no longer enough; it must also be understood by a machine, and stay alive to be judged reliable.
What is an agentic website?
We call a website agentic when it combines three capabilities that a classic brochure site lacks.
- It feeds itself. Automations update it without anyone logging into a back office: a LinkedIn post becomes an article on the site, a new project appears in the portfolio, contact requests land directly in the CRM.
- It is readable by Google and by AI. Its code is written for crawlers as much as for visitors: fast pages, structured data, an up-to-date sitemap, declared language versions, and an llms.txt file that summarises the company for language models.
- It converts without waiting. Visitors book a slot in your calendar in three steps, receive an invitation with their video link and automatic reminders, or ask their questions to an AI assistant that knows your offers.
Why a brochure website is no longer enough
Two findings, measured on our own websites in 2026.
First: customers arrive through AI. Our subsidiary Codito BTP now receives roughly one prospect a week who found it by asking ChatGPT. The first of them was not searching for an "AI agency": they had described their company to the assistant and asked how to bring AI into it. The assistant read the websites, then recommended the one that answered the question best.
Second: each assistant reads a different index. ChatGPT relies on Bing, Gemini on Google, Claude on Brave Search. A site missing from one of these indexes is invisible to the corresponding assistant, however good it is. In mid-September, Codito BTP ranked first on ChatGPT and Gemini but was absent from Claude, simply because Brave had indexed only three of its pages. One week after submitting the pages and enabling IndexNow, Brave shows the site in its answers and sends it its first visitors.
Add to this the effect of Google's AI overviews: a page can rank well without getting a click, because the answer is given directly in the search engine. In this context, the goal is no longer just to rank, but to be cited.
The three pillars of an agentic website
1. A site that feeds itself
A site that never changes sends a signal of neglect, to search engines and AI alike. Yet most business leaders already publish: on LinkedIn, in a newsletter, in client case studies. An agentic website picks up what is already produced and publishes it in the right place. For the consulting firm Les Pointures, every LinkedIn post is automatically republished in the "Our point of view" section of the site: zero double entry, fresh content every week.
2. A site readable by Google and by AI
This is the technical pillar, and the one website builders handle worst. It combines classic SEO with GEO, optimisation for generative engines:
- static pages that load instantly;
- structured data describing the company, its offers, its leadership, its articles and their frequently asked questions;
- a sitemap and language versions declared properly;
- an llms.txt file with questions and answers written to be quoted as-is by a model;
- instant notification of new pages to search engines via IndexNow, and submission to Brave Search to be visible on Claude.
3. A site that converts
A visitor sent by an AI recommendation is already half convinced. They should not land on a form promising a call back "within 48 hours". On our websites, booking takes three steps: choosing a slot among the calendar's real availability, an invitation sent automatically with the video link, and reminders the day before and one hour before. An AI assistant answers questions about the offers at any hour.
Brochure website vs agentic website
| Classic brochure website | Agentic website | |
|---|---|---|
| Content | Updated by hand, rarely | Fed automatically from LinkedIn, the portfolio, the newsletter |
| Visibility | Designed for Google | Designed for Google, ChatGPT, Gemini and Claude |
| Conversion | Contact form | Direct booking in the calendar, reminders, AI assistant |
| Tools | Isolated | Connected to the CRM and the company's tools |
| Evolution | Limited by the template or the builder | No limits: everything is in the code |
Why build it in code rather than with a website builder
Website builders are fast for a brochure site. They hit their limits as soon as you need to plug in an automation, control precisely what crawlers read, or integrate booking connected to a real calendar. A site developed in code is 100% custom: it can do exactly what the company wants, it is faster, and you own the code. That is what makes it possible to add an AI assistant, a new language or an automation tomorrow without rebuilding everything.
Where to start
- Check your presence in all three indexes: type site:your-domain.com on Google, Bing and Brave Search. A page missing from an index is invisible to the corresponding AI.
- Ask ChatGPT, Gemini and Claude who they recommend for your line of business and region. Note who gets cited, and why.
- Identify the content you already produce elsewhere (LinkedIn, newsletter, case studies) that does not live on your website.
- Measure the path from a visitor's arrival to a booked meeting: how many steps, how much waiting.
We build agentic websites as part of our custom development offer, from €3,000 excl. VAT. For a first diagnosis of your current website, book a 30-minute call.