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.
Best Google Optimize Alternatives 2026
Google Optimize is gone. The free and paid replacements worth moving to, compared on pricing and features, plus a migration checklist.
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.