knowngrounds

Does the model actually read your page?

When someone asks an AI about your product, it either goes and reads your current page or it answers from a stale memory of it. Those look identical to the person asking. They are not the same thing, and only one of them survives you changing your pricing.

knowngrounds takes a URL, extracts what it actually claims, and asks a model the same questions twice — once with search and fetch available, once with nothing but its own weights. The gap between the two is the measurement.

Run a check How this works
Sign in with an email link — no password. Your first run is on us.

The four outcomes

Right with tools
Wrong with tools
Right from memory
KnownThe model has you right either way. Nothing to do.
Prior overrideIt knew the answer, searched, and talked itself out of it. Usually something on the page contradicts itself.
Wrong from memory
Retrieval-dependentYour page is doing the work. Fine — until the model stops fetching, or a competitor's page ranks above yours.
Not reachableIt cannot find or cannot use your content. The most fixable case, and the one nobody measures.
The two conditions differ by exactly one thing: whether the tools are attached. Same model, same questions, same phrasing, no system prompt in either. That is the only way the difference means anything.

What a run does

Stage one
Read the page

Every checkable claim is extracted with the line it came from, then turned into a question with a known answer. The question set is frozen, so two runs a month apart are comparable.

Stage two
Ask it twice

Each question is put to the model with search and fetch available, and again with nothing. Several samples per condition, because one answer is an anecdote.

Stage three
Grade and explain

A stronger model grades each answer against the page and writes down why. You get the outcome, the reasoning, the search results it saw, and the exact lines of your page it should have used.

We also plant false-premise probes — questions that assume something about you that is not true. A model that cheerfully confirms them is not retrieving; it is agreeing. That number tends to be the uncomfortable one.

Pricing

Pay for what a run actually costs, plus a flat margin — no seats, no subscription. Top up in $10 increments and draw it down; credit does not expire. A typical page is a few tens of cents. Your first run is free, so you can see the report before you decide anything.