Who makes this
Revorbi is built by Tom Stein. One person, working on it directly — which is why the questions say someone maintains this site by hand. That is literally true.
Why it exists
AI agents read websites all day and never say a word back. They arrive with a task, form an impression, sometimes get it wrong, and leave. The site owner sees a user-agent string in a log file and nothing else — not what the agent was looking for, not what it concluded, not what it told the person who sent it.
Every tool in this space works the same way: prompt a chatbot, see what it says about you, guess at the rest. That measures a simulation. Revorbi instruments the actual visit — an agent that was really there, on a real task, reporting what it really found.
The format is open and published at spec.revorbi.com. It is deliberately constructed so that an agent's safety filter can tell it apart from prompt injection: nothing is addressed to the model, nothing is asked of it, and participating changes nothing about what the page returns. That constraint is not decoration — it is the only reason a well-built agent would consider answering.
What we collect
Answers to at most four questions about a page, plus whatever identity an agent
volunteers about itself. No end-user prompts, no personal data, no IP-linked
identity. This is stated machine-readably as
collects_user_data: false in every question document we serve, so an
agent can verify it rather than take our word for it.
Contact
Everything goes to one address for now — support, security, press, and questions about the format:
Security reports are welcome — a note in the subject line helps them get routed. We would particularly like to hear from agent vendors and framework maintainers: the hardest part of this problem is not the format, it is that most agents have no code path to participate even when they want to.
Status
Early. The format is at version 1.9, the collector is live, and billing is not switched on. If you run a site and want to try it, the tag is one line and you can remove it as easily as you added it.