Home Versus Google Optimize The Sun Has Set The Google Optimize Replacement Google Optimize is gone. Zyro is the lightweight, data-driven successor you've been looking for. Same free entry, better engine. Zyro VS Google Optimize Feature Comparison Table Feature Zyro Google Optimize Service Status Is it actively supported? Active & Evolving Sunset (Dead) Experiment Limit How many tests can you run? Unlimited 5 Concurrent Performance Impact Does it cause flicker? Zero (Edge Cache) High Flicker Risk GA4 Integration Does it send data to Analytics? Native Push Native (Legacy) Statistical Model How we calculate winners. Bayesian + Bandit Frequentist (Basic) Traffic Allocation Does it automatically optimize? Automated Bandits Manual Only Setup Time 2 Minutes N/A (Discontinued) 1. Why Did Google Kill Optimize? Google Optimize was discontinued on September 30, 2023. Google claimed it was to "focus on GA4," but the real reason was simpler: Optimize was a loss leader with performance problems. The client-side flicker became a liability as Core Web Vitals became ranking factors. Zyro solves the flicker problem that killed Google Optimize. We use modern edge-cached architecture that loads your experiments instantly from CDN edges worldwide, ensuring your Core Web Vitals stay green while you optimize for revenue. No sunset date, no forced migration. 2. Don't Go Back to Spreadsheets Many ex-Optimize users tried hacking together solutions using GTM (Google Tag Manager) and spreadsheets. This is messy, error-prone, impossible to track properly, and wastes hours of engineering time that should be spent on growth. Zyro gives you the visual A/B testing editor and automated reporting you loved in Optimize, but upgrades the engine with Bayesian statistics and Multi-Armed Bandit algorithms that auto-optimize your traffic for profit, not just statistical significance. Start testing in 2 minutes, not 2 weeks. 3. Better Statistics Than Google Offered Google Optimize used basic Frequentist statistics. This meant you had to wait for a predetermined sample size and couldn't check results early without invalidating the test. The 5 concurrent experiment limit forced you to run tests sequentially instead of learning faster. Zyro uses Sequential Bayesian statistics that let you monitor results daily without statistical penalties. Combined with Multi-Armed Bandit algorithms, Zyro automatically shifts traffic to winners as the test runs, protecting revenue while gathering data. Run unlimited experiments simultaneously to learn faster and optimize more aggressively.
1. Why Did Google Kill Optimize? Google Optimize was discontinued on September 30, 2023. Google claimed it was to "focus on GA4," but the real reason was simpler: Optimize was a loss leader with performance problems. The client-side flicker became a liability as Core Web Vitals became ranking factors. Zyro solves the flicker problem that killed Google Optimize. We use modern edge-cached architecture that loads your experiments instantly from CDN edges worldwide, ensuring your Core Web Vitals stay green while you optimize for revenue. No sunset date, no forced migration. 2. Don't Go Back to Spreadsheets Many ex-Optimize users tried hacking together solutions using GTM (Google Tag Manager) and spreadsheets. This is messy, error-prone, impossible to track properly, and wastes hours of engineering time that should be spent on growth. Zyro gives you the visual A/B testing editor and automated reporting you loved in Optimize, but upgrades the engine with Bayesian statistics and Multi-Armed Bandit algorithms that auto-optimize your traffic for profit, not just statistical significance. Start testing in 2 minutes, not 2 weeks. 3. Better Statistics Than Google Offered Google Optimize used basic Frequentist statistics. This meant you had to wait for a predetermined sample size and couldn't check results early without invalidating the test. The 5 concurrent experiment limit forced you to run tests sequentially instead of learning faster. Zyro uses Sequential Bayesian statistics that let you monitor results daily without statistical penalties. Combined with Multi-Armed Bandit algorithms, Zyro automatically shifts traffic to winners as the test runs, protecting revenue while gathering data. Run unlimited experiments simultaneously to learn faster and optimize more aggressively.