See it the way
a stranger sees it.
coldrun signs up for your product completely cold — no prior knowledge, no account — and hands back a scored report of exactly where a first-time user would hesitate or walk away.
Currently in private beta — see an example audit
The path of most resistance.
Traced step by step, in the agent's own words.
It looks, it doesn't read your code.
“Two buttons look primary. Going with the higher-contrast one: ‘Get started’.”
It waits on your verification email.
It narrates every decision.
“This screen has no obvious next step. I'll wait a few seconds before trying anything.”
An example run.
Not an inferred metric.
Every claim in the report below traces back to a specific step in the recorded session — not a dashboard number someone has to take on faith.
Signup completed, but two steps caused real hesitation — see below.
“Enter details to provision your initial workspace environment.”
“Name your team's workspace to get started.”
Where it hesitated
Verification email, step 9
Agent left the browser tab to check its inbox before it could reach the dashboard — a real drop point, timed at 14 seconds.
Workspace naming, step 14
Copy used internal jargon the agent had to reread twice before proceeding.
20 steps recorded for this run — each with its own screenshot and the agent's reasoning at that moment, so you're never trusting a summary you can't check.
Questions, answered.
Everything SaaS founders ask before running their first audit.
My landing page gets traffic but visitors don't sign up. Can coldrun tell me why?
Usually. "Landing page doesn't convert" is often diagnosed as a headline or CTA problem, but a lot of that drop-off actually happens one click later — in the signup form, the verification wait, or the first screen after signup. coldrun traces that exact path and shows you where a first-time visitor stalled.
What does coldrun actually do?
You give coldrun a signup URL. An AI agent with no prior knowledge of your product opens it, signs up like a first-time visitor, and works through onboarding on its own. Every decision it makes — which button it clicks, how long it waits, where it hesitates — is narrated and compiled into a scored report.
How is this different from analytics or session replay?
Analytics and session replay tell you what already happened to real users after the fact — and you need existing traffic to have anything to look at. coldrun runs a fresh session on demand, so a solo founder can see exactly where a new user gets stuck before spending on ads to drive more traffic into the same broken flow.
Do I need to install anything or add code to my product?
No. You paste a live signup URL and coldrun's agent interacts with your product the same way a visitor's browser would — no SDK, snippet, or integration required.
What's in the report?
A scored summary of the onboarding session, a step-by-step trace of the agent's reasoning at each screen, screenshots of where it hesitated or got stuck, and suggested rewrites for copy that caused confusion.
Can I audit a product that requires email verification or an invite?
Yes. The agent waits on verification emails and multi-step signup flows the same way a real first-time user would, and the report notes exactly how long that wait felt.
Who is coldrun for?
SaaS founders and small product teams who want an outside perspective on why their signup isn't converting, without recruiting and scheduling human usability testers for every release.
Want the longer version? Read the full guide on why SaaS signups don't convert.
Stop guessing where they get stuck.
Paste your signup URL. Get a scored, traceable report of your first session — not another dashboard number to take on faith.