What's the best way to A/B test a Webflow site in 2026?
Updated June 2026
Side-by-side: Webflow Optimize vs Humblytics A/B testing
What each option offers for running experiments on a Webflow site.
In one sentence: Webflow Optimize is a $299/mo add-on that tests page/section/element variants with AI personalization inside the Designer; Humblytics tests any element on any plan and adds cookie-free analytics, heatmaps, funnels, and Stripe-verified revenue attribution.
When each wins: Webflow Optimize wins if you want AI traffic allocation and 1:1 personalization built into the Webflow Designer. Humblytics wins when you need affordable element-level tests, heatmaps per variant, and proof that a variant moved revenue — on any plan, cookie-free.
One install replaces the whole stack.
Analytics, A/B testing, heatmaps, funnels, and Stripe-verified revenue attribution — from one lightweight, cookie-free script.
A/B Split Testing
Ship a variant in 60 seconds, no dev queue. Every test is scored on the Stripe revenue it produced, not click proxies.
Funnel Analytics
See exactly where revenue leaks. Pinpoint the step where buyers drop off, before they reach checkout.
Revenue Attribution
Tie ad spend to real Stripe payouts. ROAS by channel, campaign, and keyword, not last-click guesses.
API for Agents
Point Claude or Codex at the funnel. One REST call per metric, so your agent reads the data and ships the test.
Real-Time Analytics
See every click, form, and pageview as it happens. Cookie-free, no sampling, no 24-hour lag.
Plugs into your stack
One script reads Stripe, your ad platforms, and your CMS or newsletter.
Built to stay out of the way
36 KB script, async-loaded and CDN-served. It never blocks render.
Why we built Humblytics
Webflow teams ship beautiful sites fast, then guess what to change. Webflow Optimize unlocks granular A/B testing, AI auto-optimization, and personalization — but it's a separate add-on starting at $299/mo and priced by page views.
Humblytics lets you test individual headlines, CTAs, hero images, or pricing sections with a visual editor on top of your live Webflow site — on any plan, no add-on, no consent banner.
And because every variant is tied to Stripe revenue, not clicks, you apply the winner that actually made money. This is revenue-based A/B testing — and Claude or Codex can run the loop over our REST API. All from $19/mo.
One platform, plans that scale with you.
Every plan includes analytics, heatmaps, funnels, the visual A/B editor, and cross-domain tracking. Pay for traffic, not features.
For solo marketers validating one revenue leak.
14-day free trial · No credit card
Everything you need to validate:
- 10K events/mo · 5 websites
- 1 A/B test · 1 funnel · 1 heatmap
- 25 AI insights/mo
- Meta & Google Ads attribution
- Property API access
For teams letting Claude or Codex operate the loop.
14-day free trial · No credit card
Everything in Plus, plus:
- 500K events/mo
- Unlimited websites
- 5 A/B tests · 5 funnels · 5 heatmaps
- 200 AI insights/mo
- Agent API — run Humblytics from Claude or Codex with 12 open-source skills
- All ad connectors (Meta, Google)
For growth teams running 10+ experiments a month.
Everything in Business, plus:
- 1M events/mo
- Unlimited A/B tests, funnels & heatmaps
- 1,000 AI insights/mo
- 5 team members
- Priority AI processing
Running an agency or managing enterprise accounts?
Custom events, unlimited team members, dedicated specialist, and SLA-backed support.
What counts as an event?
Pageviews, clicks, and form submits — auto-tracked from one script. Heatmap interactions are bundled into pageviews.
What if I exceed my limit?
Tracking keeps running. We email you before you hit the cap. Add-ons cover overflow at $39 per 1M events.
Can I cancel anytime?
Yes — month-to-month, cancel in two clicks. The 14-day trial requires no credit card.
Add-ons & overflow pricing
Extra Data Events $39/mo per 1M events
Scale tracking beyond your plan limit
Extra Seats $9/mo per seat
Add team members to any plan
Compare all features across plans
| Feature | Plus | Business | Scale |
|---|---|---|---|
| Analytics | |||
| Events / month | 10K | 500K | 1M |
| Websites | 5 | Unlimited | Unlimited |
| Cookie-free tracking | |||
| Cross-domain tracking | |||
| Revenue tracking (Stripe) | |||
| Testing & Optimization | |||
| A/B split tests / month | 1 | 5 | Unlimited |
| Funnels | 1 | 5 | Unlimited |
| Heatmaps | 1 | 5 | Unlimited |
| Visual A/B editor | |||
| Agent & API | |||
| API access | |||
| AI insights / month | 25 | 200 | 1,000 |
| Agent API (Claude · Codex) | — | ||
| Priority AI processing | — | — | |
| Ad attribution | |||
| Meta & Google Ads | |||
| Form connectors | |||
| Team | |||
| Team members | 1 | 1 | 5 |
| Email support | |||
All plans include heatmaps, funnels, visual A/B editor, cookie-free tracking, and public share links.
Test any element. Score it in revenue.
Visual editor, heatmaps per variant, funnels, and Stripe revenue attribution — included on every plan from $19/mo. Launch your first A/B test in 60 seconds.