# ProofBench > Know which idea to build, before you build it. ProofBench lets indie founders test startup ideas with real fake-door landing pages, measuring email-conversion and buy-intent rates — not vanity views — then ranks the ideas so you build the one people actually want. ProofBench is a micro-SaaS for indie hackers and solo founders. You give an idea a headline, a subtitle, and a call-to-action button — no code — and it goes live in minutes at proofben.ch/p/your-idea. You drive a little traffic to it (a tweet, a subreddit, a small ad), and ProofBench measures who signs up and who clicks "buy" on a fake-door test. It ranks every idea by intent rate so you validate real demand before you build. Pricing is a one-time payment, not a subscription, and your email signups always stay yours. ## Pages - [Home](https://www.proofben.ch): What ProofBench is, how it works, pricing, and FAQ. - [Sign in](https://www.proofben.ch/login): Create a free account or log in (Google or email) to build a proof page. - [Privacy Policy](https://www.proofben.ch/privacy): What data ProofBench collects, how it is used, and the processors it relies on. - [Terms of Service](https://www.proofben.ch/terms): The terms that govern use of ProofBench. ## Key facts - Measures the real signal — email conversion rate plus fake-door buy-intent rate — instead of vanity page views. - Ranks your ideas against each other so you know which single one to build. - No code required; a test page goes live in minutes at proofben.ch/p/your-idea. - A fake-door test is a "buy" button for something not built yet; a click is a stronger signal than an email because it proves someone wants it. Nobody is charged — clicking leads to an honest "coming soon, leave your email" screen. - Rate matters more than traffic, so even 50–100 visitors give a real signal. - One-time pricing (from €29), not a subscription. Building is free; you pay only to publish a page live. A 1-Year Pass covers unlimited live pages for a year; a Lifetime Deal is forever. - Your leads live in your own dashboard — ProofBench never emails them and never sells your data.