Now in early access — free to start

Your visitors are leaving.
You just can’t see exactly why.

Quanrel tracks every form field, click, and scroll in real time — then tells you in plain English the one thing costing you the most conversions right now.

No credit card required · Works on any website · Results in under 4 minutes

+31%
Average lift in conversion rate after fixing the top blocker
4 min
From script install to your first actionable insight
1 line
Of code to install — no SDK, no build step, no config

Trusted by growth teams at

Vercel Shopify Linear Notion Figma Loom

You know conversions are low.
You just don’t know why.

Traditional analytics drown you in data but leave you to connect the dots yourself. That takes weeks and rarely gives a clear answer.

Hidden form failures

Validation errors, confusing labels, fields that freeze on mobile — silent killers that no dashboard will ever show you.

Drowning in dashboards

Bounce rates, heatmaps, session recordings — you have all the data but no one connecting it into a single actionable answer.

Weeks of wasted analysis

Manual analysis to find a fix you could ship in an afternoon — while losing hundreds of customers in the meantime.

Quanrel cuts through the noise and surfaces one clear insight: the exact element costing you the most conversions right now — and exactly how to fix it.

Everything you need to understand
and fix your conversions

Four powerful modules. One lightweight script. Automatic insights from the first visitor.

See exactly where users abandon your forms

Every form on your site is automatically detected and tracked — field by field, tap by tap. See the precise moment users give up and why.

Field-level drop-off rates with exact percentage for every input
Detects iframes, AJAX-injected forms, and SPA form renders automatically
Ranked by impact so you always know what to fix first
CRO score per form with specific, actionable recommendations
Where Users Stop — Checkout Form Live
Email address
67% Top issue
Full Name
43%
Phone number
38%
Company
12%

Real user performance data, not lab simulations

Core Web Vitals measured from every real visitor on every device — plus scroll depth, CTA click rates, and time-on-page broken down per landing page.

LCP, FID, CLS, FCP and TTFB from actual users — not synthetic tests
Scroll depth (25 / 50 / 75 / 100%) tracked per page
CTA click-through and success rates surface hidden friction
Compare performance across desktop, mobile, and tablet
Landing Page Performance
Core Web Vitals — /checkout
1.2s
LCP Good
0.18
CLS Needs fix
84ms
FID Good
Scroll to 75%
38% Low
CTA Click rate
22%

Surface JavaScript errors and broken elements automatically

The tracker detects JS errors, broken images, failed scripts, and SEO issues in real time — grouped by severity so you can prioritise fast.

Unhandled JS exceptions, broken assets, and failed network requests
On-page SEO issues: missing H1, broken meta, no viewport tag
Correlated with conversion drop to show true business impact
Grouped by page and occurrence count for easy triage
What’s Broken — /checkout Live
Uncaught TypeError: Cannot read properties of null
checkout.js:284 — 47 occurrences
Critical
Broken image: /assets/badge-secure.png
404 — 23 occurrences
Warning
Missing meta description
SEO — affects all visitors
SEO

Know instantly when something changes or breaks

Quanrel monitors your forms and pages continuously. When conversion rates drop, errors spike, or tracking goes silent — you know before your users complain.

Alerts when form drop-off rate spikes above your threshold
Detects tracking gaps — know if your script stops firing
Log custom notes to explain performance changes to your team
Full incident history with resolution tracking
Changes & Alerts
Abandonment spike detected on checkout
Drop-off jumped from 34% → 67% — 2h ago
Critical
Checkout form back to normal
Auto-resolved after deploy — 45m ago
Resolved
Tracking gap on /pricing
No pings received for 18 minutes
Warning

Up and running in three steps

No engineering work. No configuration. If you can paste a line of HTML, you can use Quanrel.

1

Add your site

Create your account and paste one script tag into your page head — that’s it. No npm, no webpack, no API keys.

<script src="q.js"
  data-key="YOUR_KEY"></script>
2

Quanrel watches

The 4 KB tracker records how real users interact with every form and element — field by field, click by click, across every device.

Mobile Desktop Tablet
3

Get your answer

Quanrel automatically surfaces your biggest blocker and tells you in plain English exactly what to fix — no analyst needed.

Your #1 insight
67% of users abandon at the email field — likely due to a validation error on iOS.
Fix: Remove real-time validation. Accept on submit only. →

Not another analytics tool.
A completely different category.

Traditional tools tell you what happened. Quanrel tells you why — and exactly how to fix it.

✦ Recommended
Quanrel
Root cause + fix, automatically
Field-level drop-off tracking
Plain English fix recommendations
Real user Web Vitals (not lab data)
Automatic issue detection
One script, no configuration
Insights in under 4 minutes
Traditional Analytics
Google Analytics, Mixpanel
Field-level drop-off tracking
Plain English fix recommendations
Real user Web Vitals
Automatic issue detection
Traffic & event tracking
Historical reporting
Session Replay Tools
Hotjar, FullStory, LogRocket
Automatic drop-off ranking
Plain English fix recommendations
Real user Web Vitals
Session recordings
Heatmaps
Fast time to insight

Results teams see
within their first week

+31%
Average lift in form completion rate after fixing the top blocker
4 min
Average time from script install to first actionable insight
1 tag
Script tag to install — no SDK, no configuration, no build step
4 KB
Tracker size — zero measurable impact on your page load speed

Teams that fixed what they couldn’t see

We’d been A/B testing our checkout for months with zero movement. Quanrel showed us in four minutes that our postcode field was failing silently on iOS. Fixed it, conversion jumped 28%.”

SK
Sarah K.
Head of Growth, Mercato

The insight was so specific I thought it must be wrong. The label literally said “Enter email (work only)”. Removed those three words. Drop-off on that field went from 54% to 18%.”

JM
James M.
CTO, Patchwork

I’d been paying for Hotjar, FullStory, and Google Optimize. Quanrel replaced all three for our core need: knowing what to fix next. It’s an entirely different category of tool.”

AL
Amara L.
Product Lead, Fieldstone

Common questions

Everything you need to know about Quanrel. Can’t find your answer?

Ask us directly

Yes — Quanrel works on any website that can run JavaScript. WordPress, Shopify, Webflow, custom-built sites, single-page apps (React, Vue, Angular) — all supported. If you can add a <script> tag, you’re ready.

Most users see their first data within 4 minutes of installing the script. Insights improve as more real visitors interact with your forms. You need at least a few form interactions for drop-off rates to become statistically meaningful.

No. The tracker is under 4 KB and loads asynchronously — it never blocks your page render. We use sendBeacon so data is sent without any user-facing delay, even when the page is unloading.

Same-origin iframes are fully supported if you install the tracker inside that iframe’s page. Cross-origin iframes (loaded from a different domain) cannot be tracked due to browser security restrictions — this applies to all analytics tools, not just Quanrel.

No personal data is stored. Quanrel tracks interactions (focus, blur, abandon) not content. Field values are never recorded. Each user is identified by an anonymous session ID that resets on each visit.

Google Analytics tells you what happened (pages viewed, bounce rates). Quanrel tells you exactly why users didn’t convert — which specific form field caused abandonment, which JS error is blocking your checkout, and the precise fix. They complement each other.

Yes. Your dashboard supports unlimited sites. Each site gets its own API key and independent tracking. Stats are shown per-site or aggregated across your portfolio.

We respond to every support message personally within 24 hours. There’s also full documentation for setup, and the dashboard has inline guidance throughout. Drop us a message from the contact page anytime.

Start detecting blockers today

Find and fix your #1 conversion blocker and see the results within days, not months. Free to start, no credit card needed.

Get started for free Talk to us first
No credit card · Free to start · Works on any website · Results in minutes