Who stands behind Porteur

Théophile Louvart founded Porteur and writes its code, its report engine and the library of guides and tools. He ships his own products and built Porteur for the moment every founder knows: the site is live, it works, and it does not grow, and no dashboard says why. You can reach him on X or at [email protected].

One report, bought once, for one site. From a URL it reads the site, the searches around it and the rivals on them; with Google Search Console and PostHog connected it joins search to signups page by page. Every finding says what is happening with the figures behind it, what to change and how the next report will judge it, written as a brief an AI agent can take in the founder's own repository. There is no subscription and nothing renews: when you want to know what changed, you buy the next one.

The free check runs first, in about thirty seconds, without a card: who takes your searches, which are within reach, who links to your rivals and not to you, how your home page loads on a phone, and three findings written whole.

The report reads real data, never a guess: the pages of the site as a crawler sees them, the results pages of the searches that matter and who holds them, the links pointing at the site and at its rivals, one Lighthouse run per page that sells, and, when connected, the site's own Search Console and product analytics. A language model writes the findings from those figures and from a profile of the product it reads on the site itself. Each finding names the figures it starts from, so the next report can say whether the change worked, did nothing, or should be undone.

Porteur writes nothing on your site or in your accounts. Google is connected with a read-only scope; PostHog with read scopes. The changes are made by you, or by your agent, when you decide.

The guides, glossary, comparisons and tools are written with the same engine that writes the report, under a house style and a set of facts checked by hand: what Google documents, what each tool is built for, the thresholds of Core Web Vitals, the dates of the changes that matter. A lint reads every page back for invented figures, marketing register and dead links before it is published, and every page carries the day it was last updated. Where a page compares tools, it says what each is good at and when to choose it; no tool is called bad, no price is stated, and no company is used as an example of doing badly.

Every page is also served as Markdown for agents, and the whole library is listed in llms.txt.

Porteur is operated from France. Data is hosted in the European Union. Payments are handled by Polar, which acts as the merchant of record. What we hold about you and your product, and what we never do with it, is in the privacy policy; the terms are here.