100% FREE AI A/B TESTING

Free A/B testing with the help of AI.

Test different versions of your landing pages, find what sells more, and let AI automatically route visitors to the winning page. Fast, zero lag, keeps 100% of your ad tracking, and free to start.

Start Free A/B Test See How It Works
100% Free Forever Plan
1-Minute Setup (1 Line of Code)
Keeps All Ad & UTM Tracking
AI Sends Traffic to the Winner
Live Test: Original Page vs New Variant AI auto-routes visitors to whichever version sells more
AI OPTIMIZING
📱 Mobile Visitors (TikTok & Meta Ads) +38% More Sales on Variant B
AI sending 85% of mobile visitors to Variant B 15% Control
💻 Desktop Visitors (Google & Direct) +14% More Sales on Original Page
AI sending 65% of desktop visitors to Original Page 35% Variant B
Result: +32% more total sales automatically — no waiting weeks for results.

0ms Zero-Flicker Redirection

No page flash or layout jump. Redirection evaluates before initial DOM render, guaranteeing seamless visitor experience.

100% Query Parameter Safety

Automatically carries all utm_, gclid, fbclid, and referral parameters across URLs so ad attribution never breaks.

Contextual Multi-Armed Bandit

Stop waiting weeks for a global winner. AI routes traffic cohorts to the best variant for Mobile, Desktop, and Ads automatically.

THE OLD WAY VS SEATEXT

Why traditional split URL testing wastes up to 50% of your ad spend

Legacy testing tools force a static 50/50 traffic split for weeks, sending thousands of paid ad clicks to losing variations while stripping critical tracking tags.

Feature Legacy Tools (Optimizely / VWO) Google Optimize (Deprecated) SEATEXT AI Split Testing
Redirection Flicker Visible 200–500ms white screen flash Required anti-flicker hide snippet 0ms Native Edge Execution
Traffic Allocation Fixed 50/50 (wastes ad budget) Fixed percentages only AI Dynamic Multi-Armed Bandit
Cohort Intelligence One global winner for all visitors None Segments by Device, Ad Source & Country
UTM & Ad Tracking Often stripped or fragmented Manual parameter pass-through 100% Parameter & Click ID Preservation
Statistical Significance Complex manual data exports Basic Bayesian charts Automated Two-Proportion Z-Test (95% CI)
HOW IT WORKS

Launch your first autonomous split test in 3 steps

No complex SDK configurations. Works instantly on any website with one snippet.

1

Enter URL Variants

Set your Base Control URL and add any number of variant URLs (e.g. /landing-v1 vs /landing-v2).

2

Choose Routing Mode

Pick standard percentage splits (Free) or activate the AI Dynamic Traffic Optimizer for autonomous cohort routing.

3

Track Conversions

Seatext tracks conversions, purchases, and micro-engagements with 30-day sticky cookies to maintain consistent user journeys.

4

AI Scales the Winner

The bandit engine progressively routes up to 90% of traffic to winning variants while calculating statistical confidence.

FREQUENTLY ASKED QUESTIONS

Frequently asked questions about Split URL testing

When a visitor navigates to your base page, the fast edge script evaluates active experiments and assigns the variant instantly before DOM content renders. It executes a window.location.replace while preserving cookies and query markers, preventing any flash of the original page.
No. Split URL testing is a standard Google-approved practice. Search engine crawlers (Googlebot) are served the original canonical page without redirection, while human visitors are assigned sticky test variants.
Every assigned visitor receives a 30-day sticky cookie (st_ab_exp_{id}). When they return or navigate back to the base URL, they are consistently shown their assigned variant, preventing loop glitches or conflicting pricing experiences.
Instead of waiting for a 50/50 test to finish across all users, our contextual Multi-Armed Bandit groups visitors by device (mobile vs desktop), ad channel (Google, Meta, TikTok), and geography. As soon as a variant demonstrates higher conversion rates for a cohort, traffic is shifted dynamically toward that winner.

Stop guessing. Start scaling your winning pages.

Launch full-page split tests in seconds. Zero flicker, full UTM preservation, and autonomous AI traffic optimization.

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