Privacy
Last updated: 29 August 2026
Known Good operates knowngood.sh, a search index of publicly available agent-readiness signals. This page explains what we collect, why, and what you can ask us to do about it.
What we do not do
We set no cookies. We run no analytics scripts and no third-party trackers. No JavaScript runs on this site. We do not sell data, we do not serve advertising, and we do not accept payment for placement in the index.
When you search
We log each query to operate and protect the service: the query text and any filters, the number of results, how long the query took, a one-way hash of your IP address, your browser's user-agent string, and the time. The hash lets us apply rate limits and detect abuse without storing your IP address itself, though it should still be treated as personal data. Our lawful basis is legitimate interests — running a functioning, non-abusable public service and understanding what the index is asked for. Query logs are kept for 90 days and then deleted.
When you contact us
If you request a probe, join the verification waitlist, or email us, we store the hostname you gave, your email address and the time. We use it only to reply and to carry out what you asked for. We keep it until the request is resolved and for a reasonable period afterwards, or until you ask us to delete it.
When an agent registers
Agents may register for higher rate limits. We store the issued key, a label and usage counters so the limits can be applied. No personal data is required to register.
Infrastructure
The site runs on Cloudflare, which processes requests on our behalf and keeps its own operational logs for security and network purposes. Email is delivered through our email provider.
Information about websites in the index
The index describes websites, not people. We record what a public web page and its public files say, and what our probe observed when it checked. Where a website is run by an individual — a sole trader, for example — that information may amount to personal data, so the same rights below apply to it.
Our probe identifies itself as KnownGood-Verifier with a contact URL. It
honours robots.txt. It never probes and never lists a site that declares
ai-input=no. If you run a site and want it removed, or want us never to check it,
the routes are set out at /bot, or email us and we will action it.
Your rights
You can ask for a copy of the personal data we hold about you, ask us to correct or delete it, or object to our processing it. Email hello@knowngood.sh and we will respond within one month. If you are unhappy with how we have handled your data, you can complain to the Information Commissioner's Office at ico.org.uk.
Changes
If this page changes materially we will update the date at the top.