What does PreLaunchQA check?

PreLaunchQA loads your web app in a real Chromium browser and checks for console errors, failed network requests, broken links, missing meta tags, images without alt text, form fields without labels, mixed content issues, and more. Every finding includes raw browser evidence.

Who is PreLaunchQA for?

PreLaunchQA is built for developers using modern frameworks and AI coding tools like Next.js, React, Bolt, Cursor, and v0 who want to verify their web apps actually work in a real browser before going live.

How is PreLaunchQA different from Lighthouse or PageSpeed?

PreLaunchQA focuses on functional correctness — real browser console errors, network failures, and dead links — rather than performance scores. It verifies domain ownership before scanning, provides before/after comparison diffs, and targets runtime errors in production.

Yes, the Sample Scan is free and gives you a single-page check with full raw browser evidence. For deeper audits, the Launch Check is $49 one-time and the Monthly Re-test plan is $99/month for unlimited checks.

Do I need to give PreLaunchQA access to my code?

No. PreLaunchQA only needs the URL of your live or staging site. It loads the page in a browser just like a real user would. You verify domain ownership via DNS record, meta tag, or file upload before any check runs.

Does PreLaunchQA work with apps built in Next.js, React, Cursor, or Bolt?

Yes! PreLaunchQA is specifically optimized for modern web applications generated by Next.js, React, Cursor, Bolt.new, and v0. It catches silent runtime console errors, unhandled async states, broken routes, and missing meta tags before your users encounter them.

Now Live — 1 Free Sample Audit Included

Never let your first paying user be your QA tester.

When you build with AI, code moves 10x faster than manual testing. PreLaunchQA loads your web app in a real Chromium browser to catch silent console errors, dead links, and broken auth redirects before launch.

Mint = Verified & Passed Coral = Runtime Exception Amber = Needs Attention

Chromium Headless · Session #8491

https://yourapp.com200 OK

Illustrative Sample Report·Open Live Report Demo →

🔴 Uncaught TypeError: Cannot read properties of undefined (reading 'tier')

at PricingTable (Pricing.tsx:34:12)
at renderWithHooks (react-dom.production.min.js:142:28)

💡 Impact on User: When a customer opens your pricing page with no active plan, the entire section throws an exception, showing a blank screen.

✓ 14 other JavaScript scripts executed without warnings.

Clear Tangible Outputs

What You Receive in Every Audit Report

We don't give you arbitrary 0-100 scores. We give you raw browser evidence and copy-paste AI fix prompts to get your app launch-ready in minutes.

1. Raw Browser Evidence

Exact JavaScript console stack traces, network 4xx/5xx dumps, blocked assets, and DOM line numbers captured by real Chromium.

> TypeError: Cannot read 'user' at Auth.tsx:42

2. Ready AI Fix Prompts

Formatted prompts tailored for Cursor, Bolt, Next.js, or v0 so you can paste the finding directly into your AI tool to fix it in 30 seconds.

"Fix auth callback redirect mismatch..."

3. Verified Launch Badge

Dynamic SVG verification badge for your GitHub README and site footer proving to users and investors that your app works in a real browser.

PreLaunchQA Verified ✓

4. Before / After Diffs

Re-scan with 1 click to verify that previous bugs are resolved and no new regressions were introduced after updating your codebase.

Diff: 2 Bugs Resolved · 0 Regressions

Built for Modern Web Builders Who Ship Fast

Modern frontend code moves fast. But runtime exceptions, broken redirects, and missing env vars only trigger when real users load the page.

Next.js & React

Full-stack web applications. Catch hydration mismatches, auth redirect loops, and unhandled null object reads before launch.

Bolt.new

Rapid prototypes running in WebContainers. Catch serverless dynamic import failures and SPA 404 routing traps.

Cursor

AI-assisted code that passes TypeScript compile checks but breaks in real browser DOM hierarchies.

v0 & Windsurf

Complex UI layouts that look great on one screen but suffer silent CSS overflow and unlabelled forms.

Why not just test it manually?

You can. But here is the reality of manual testing versus what an automated Chromium worker checks in 60 seconds.

Check Item	Manual Checking	PreLaunchQA Chromium
Console errors	Open DevTools on 5 devices, scroll through logs	Automatic — every error logged with full stack trace
Broken links & dead hrefs	Click each link one by one manually	Every link & anchor on the page verified in seconds
Missing alt text & a11y	Inspect element on every single image	All missing labels & alt gaps flagged with DOM selectors
Failed API network calls	Watch Network tab while clicking around	Every 4xx/5xx network failure recorded with payload
Mixed content security	Check Security panel for unencrypted resources	All http:// assets on https:// pages blocked & reported
After code changes	Repeat all of the above from scratch	One-click re-scan with automatic before/after diff

How an Audit Runs

Verify you own the app

Add a 1-line Meta tag, DNS TXT record, or verification file. Nothing is ever checked until ownership checks out.

Headless Chromium audits the page

A real Chromium browser loads your app, executes JavaScript, navigates DOM elements, and intercepts network calls.

You get indisputable evidence

Every bug carries raw browser console traces and request dumps. Verify for yourself and feed direct fix prompts to your AI builder.

What the Check Covers — and What is Coming Next

Currently Checked

Isolated headless Chromium browser page load & JavaScript execution
Uncaught console errors & exception stack traces
Failed network requests & 4xx/5xx API telemetry
Time-synced video session replay & timeline bug scrub bar
1-Click AI fix prompts tailored for Cursor, Lovable, Bolt.new & Claude
Mobile viewport horizontal overflow & responsive hygiene checks
Page title, mobile viewport & OpenGraph metadata analysis
HTML language attribute, image alt tags & accessibility gaps
Form input fields without associated labels
Dead or non-functional links (empty href, '#', or javascript:void)

Coming Next (Roadmap)

Multi-page automated crawler across deep internal sub-routes (Beta Q1)
Authenticated multi-step user journey simulation (signup/login session state)
Test-mode checkout walkthroughs with simulated payment webhooks
Custom regression alert webhooks (Slack, Discord & email notifications)
Continuous scheduled daily monitoring with automated git commit diffs

Deliberately Out of Scope

Native mobile apps and desktop applications
Active penetration attacks: SQL injection, brute force, fuzzing, or DoS
Real payments or modifications to production databases — safe tests only
"Guaranteed bug-free" claims — we deliver empirical browser proof, not subjective promises
Modifying your repository or auto-committing code without approval
Scanning any web application without verified owner permission

Where a human still decides

Once checks go live, scanning and reporting run automatically. Three things stay with a real team member on purpose: authorising domain ownership, approving outbound partner outreach, and personally reviewing and processing refunds under our 7-day money-back guarantee. No automated refusal bots.

🔒

Ownership Verified

We verify you own the domain before any check runs. DNS record, meta tag, or file — your choice.

🛡️

No Code Access Needed

We only need your public URL. We never access your source code, production database, or deployment credentials.

📋

Evidence, Not Opinions

Every finding includes the raw browser data that produced it. Verify for yourself — nothing is hidden.

Simple, Transparent Pricing

Run a free sample audit on your homepage, or unlock deep multi-page audits and continuous re-testing.

🏷️Launch Offer: Use code LAUNCH20 at checkout for 20% OFF any plan! (Valid during launch week · Applies to all passes & initial month).

Sample Scan

Get started

Free

Instant single-page check. Inspects console logs, network responses, and DOM hygiene on your homepage.

Start free check

Instant Fix Pass

Quick fix

$19($15.20 w/ code)single check

1 deep Chromium audit with console stack traces, network intercepts, video replay, and 1-click AI fix prompts.

Buy pass ($19)

Launch Check

Monthly Re-test

Continuous QA

$99($79.20 w/ code)/month

Continuous QA: 10 deep audits per month, before/after deploy comparison diffs, priority queue, and regression alerts.

Subscribe ($99/mo)

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