A/B testing for component-driven Webflow sites

A/B testing for Growth Marketers on Webflow

A/B testing built natively into the Webflow Designer. Click any element or component instance, set it as a variant, ship. SEO-safe. No code required.

BUILT FOR
A/B Test
Variant A
"Grow your business with data-driven decisions"
Variant B
"Stop guessing. Start testing your Webflow site"
0 visitors
Original 0.0%
Control
Variant B 0.0%
94.2%
Winner found - Variant B outperforms by +47%
Powering conversion optimisation for Webflow teams worldwide
SEO safe
Component aware
Designer Extension
MCP available
GDPR ready
12ms resolve
The Problem

You redesign. You guess. You repeat.

Every Webflow team hits the same wall: no way to know what actually works.

Before Split
Changed the hero 3 times
No idea which version converted better. Every redesign is a coin flip.
Testing tools don't fit
Others don't work with component driven frameworks. Google Optimize is dead.
Vanity metrics everywhere
Most tools let you peek at results early, inflating false positives. You think you have a winner but you don't.
With Split
Test any element, visually
Select elements right inside the Webflow Designer Extension. Set up A/B tests without writing a single line of code.
Built natively for Webflow
Not a generic tool bolted on. Split integrates with the Webflow Designer, understands your elements, and deploys via one script.
Honest, always-valid stats
Bayesian sequential testing means you can check results anytime. No inflated false positives.
The Solution

Everything you need to test, built in

From simple element tests to full-page redirects and multivariate experiments - all native to Webflow.

A/B Test

Element-level split testing

Test any element on your Webflow page - headlines, CTAs, images, sections. Split identifies the element, serves the variant, and measures the impact.

Test headlines, buttons, images, or full sections
Visual element selector in the Designer Extension
Zero-flicker variant delivery in under 12ms
Element A/B test UI
URL Test

Full-page redirect testing

Test entirely different page designs against each other. Split redirects a percentage of traffic to your variant URL and tracks conversions across both.

Test completely different page layouts
Split traffic by percentage between URLs
Track conversions across both pages
URL redirect test UI
Multi-Variant

Test 3+ variants at once

Go beyond simple A/B tests. Run up to 4 variants simultaneously and let Bayesian statistics find the winner faster.

Up to 4 variants per test
Automatic traffic allocation to winning variants
Faster convergence than traditional A/B tests
Multi-variant test UI
Analytics

Real-time Bayesian statistics

No more waiting weeks for results. Split uses always-valid sequential testing so you can check results anytime without inflating false positives.

Always-valid sequential testing - check anytime
95% credible intervals, not p-value hacking
Clear winner detection with probability scores
Bayesian analysis results
How it works

Get started in minutes

Setting up is as simple as connecting the Webflow app to your site.

Split dashboard
01

Connect Split's Webflow app. This adds Split's lightweight script to your Webflow site. It starts working immediately.

Create a test in the Designer Extension
02

Create a test. Use the Designer Extension to select elements and set up variants - no code needed.

Test results showing Variant B winning
03

See results. Watch real-time Bayesian statistics tell you which variant is winning.

Split dashboard showing test results
Data-Driven

Know what's working and what's not

Stop relying on gut feeling. Split gives you real-time visibility into every test so you can make decisions backed by data.

Real-time conversion tracking

Watch conversions roll in as they happen across all your active tests.

Clear winner detection

Bayesian probability scores tell you exactly when a variant wins - no guessing.

Historical test data

Every test result is saved. Build institutional knowledge about what converts on your site.

Use Cases
H2
Test variant B

What Webflow teams use Split for

From headline testing and CTA optimisation to full page redesigns and agency client work - Split supports every A/B testing use case natively in Webflow.

Hero headline A/B test results
Hero Headline Testing
Test different hero headlines to find the message that resonates.
CTA button A/B test results
CTA Optimisation
Test button copy, colours, and placement. Small CTA changes often drive the biggest conversion lifts.
Full page redesign A/B test
Full Page Redesigns
Use URL redirect tests to split traffic between completely different page designs.
Pricing page A/B test
Pricing Page Testing
Test pricing layouts, tier ordering, and feature emphasis.
Social proof placement test
Social Proof Testing
Test testimonial placement, review formats, and trust signals.
GDPR-ready privacy settings
GDPR-Ready Testing
Privacy-first A/B testing. Split works without third-party cookies.
Form placement A/B test
Form & Lead Gen Testing
Test form placement, field count, and submission CTAs.
Navigation layout A/B test
Navigation Testing
Test nav layouts, link ordering, and CTA placement.
Campaign landing page test results
Campaign Landing Pages
Test landing page variants for paid campaigns. Maximise ROAS.
Pricing
H2
Test variant B

Simple, honest pricing.

Start free. Upgrade when you need more.

All prices in USD.
FAQ

Your questions, answered

Everything you need to know about A/B testing your Webflow site with Split.

Split is a native Webflow Designer Extension. You install it from the Webflow Marketplace, connect your site via OAuth, and create tests directly in the Webflow canvas. No custom code needed.

No. Split's client script is under 8KB and resolves variants before the page renders. Zero visible flicker.

Most tools use frequentist statistics. Split uses always-valid sequential testing with Bayesian inference. You can check results at any time without inflating your false positive rate.

Yes. Split doesn't use third-party cookies or store personal data. If a visitor hasn't consented, Split simply shows the control variant.

Yes. URL redirect tests let you split traffic between completely different pages.

Split's Bayesian engine works well at 1,000+ visitors/month. You'll get meaningful results faster than with traditional frequentist tools.

Split shows you which variant wins with a clear probability. Deploy the winner permanently in Webflow with one click.

Free and Starter plans support a single site. Professional plan supports unlimited sites - perfect for agencies.

Yes. As of v1.0.4 the Split Designer Extension can connect Webflow component instances directly to A/B tests, multivariate tests, URL tests, and conversion goals - no Div Block wrapper required. Split adds typed props to the component definition via Webflow's Component Properties API and binds them to data-split-* attributes on the component root, so component-driven frameworks like Lumos and MAST work end-to-end.

Your visitors are already telling you what works.

Start your first A/B test today free, native to Webflow, with statistics you can trust.

Setup in 30 seconds
No code required