A/B Testing & CRO Guides
Practical guides to help you run better experiments, optimize conversion rates, and grow your business with data — not guesswork.
A/B Testing for Beginners — Complete Guide 2026
Learn A/B testing from scratch — what it is, how it works, statistical significance, and how to run your first experiment step by step.
Conversion Rate Optimization Guide
The full CRO playbook: how to audit your funnel, prioritize tests with the PIE framework, and compound conversion improvements over time.
How to A/B Test Your Landing Page
Specific A/B testing tactics for landing pages — headlines, CTAs, form length, social proof placement, and mobile optimization.
A/B Testing Tools Pricing Comparison 2026
Side-by-side pricing breakdown for Optimizely, VWO, Convert, AB Tasty, PageDuel, and more. Find out what you really pay at each traffic tier.
Best Free A/B Testing Tools 2026
A practical review of tools with genuinely useful free tiers — what you can test, what the limits are, and when to upgrade.
First-Party Analytics: Serve PageDuel From Your Own Domain
Route the snippet and its data calls through your own domain with a small reverse proxy — works with strict Content-Security-Policies and survives most ad-blockers. Recipes for Next.js, Vercel, Netlify, Cloudflare, nginx, and Apache.
Ready to start testing?
PageDuel makes A/B testing simple — install one script, use the visual editor to create variants, and let the stats engine do the math. Free plan, no credit card required.