WordPress A/B Testing
WordPress Testing. Winning Results.
Run WordPress split testing experiments directly in the block editor. No external tools, no complex setup. Test headlines, CTAs, and entire layouts, and let a Bayesian statistics engine tell you the precise probability that each variant wins, while traffic shifts toward the leader as the test runs.
Native block variants
Duplicate any block to test variations
Adaptive traffic allocation
Winning variants earn more traffic mid-test
Auto-declare winners
Bayesian probability-to-win, no fixed sample size
No coding required
Visual editor for all tests
Works on any WordPress host, including:
How WordPress A/B Testing Works
Launch Your First WordPress Split Test in 3 Simple Steps
Turn any block into a Sync Pattern to turn it into a Global Block.
From the Edit Block screen, upgrade the block to A/B Test
Here you can duplicate the existing design, or start blank. Your test is then live!
Why it wins
A testing engine that spends traffic, not time
Adaptive allocation
Stop paying full price for every test
Most WordPress A/B tools split traffic evenly to the bitter end, so half your visitors keep landing on the loser. Accelerate runs every test as a multi-armed bandit: traffic follows the evidence, then settles back to even for a clean, confirmatory call.
Even split while evidence builds, so early noise can’t hijack the test.
Thompson sampling moves traffic to the leader. A floor keeps every variant measurable; a cap stops a runaway.
At 95% probability-to-win, the split returns to even for a clean final read.
The winner ships, and far fewer visitors ever saw the losing version.
Most WordPress tools split traffic 50/50 to the end and bleed conversions on the loser. Accelerate moves traffic to the winner the moment the data earns it, then hands you a clean confirmatory read before declaring.
Always-on statistics
Read your results the moment you want them
No fixed sample size, no waiting for a magic number of visitors. Bayesian statistics give every variant a live probability of being the best and a credible interval for the lift, readable at any point without the peeking penalty that breaks classic tests.
Two posteriors: Accelerate's live belief about each variant's true conversion rate. The further the variant's curve sits past control's, the more likely it is genuinely better.
A Bayesian read you can check any time without inflating your error rate: no fixed sample size, no spreadsheet of p-values.
Numbers an editor can actually act on
- Probability-to-win and 95% credible intervals, per variant
- Results update live: no fixed sample size to wait out
- Auto-declare at your threshold, or keep one-click manual control
WordPress CRO Plugin
WordPress Conversion Optimization Built for Editors, Not Engineers
Create WordPress A/B test experiments in minutes, not hours. Our CRO plugin integrates multivariate testing directly into your block editor workflow.
Native WordPress Block Variants
Duplicate any WordPress block, edit it visually, and Accelerate automatically creates an A/B test. No configuration needed, no code required. WordPress split testing feels like editing.
- Works with any WordPress block
- A/B test WordPress headlines, CTAs, images, or entire layouts
- Automatic traffic splitting and tracking
- Rendered by WordPress itself: no external JavaScript overlay, no flicker, no third-party tag
Auto-declare winners
Set a probability threshold and let Accelerate promote the winning variant automatically once it is sufficiently likely to be the best. No manual monitoring, no spreadsheet of p-values.
- Automatic winner detection
- Configurable probability thresholds
- One-click manual override option
Manage every test without leaving WordPress
A dedicated experiments dashboard lists every running and completed test in one place, and status chips in the editor header let you pause, resume, or read live results right where you write.
- One overview of every experiment, past and present
- Editor header chips with an inline tray for settings and live results
- Experiment history preserved after tests complete
AI Toolkit
ExperimentalYour site, testing itself
Ask in plain English and Accelerate's AI does the slow parts of optimization at machine speed: reading your analytics, drafting on-brand variants, running them as bandits, and calling winners. The creative loop that used to take a team a week runs as fast as your traffic allows.
Today, the AI does every slow step at machine speed and waits for your one-click approval before anything goes live. The fully hands-off version is already running in our lab.
Built for speed
Testing at the speed of your traffic
The bottleneck was never the maths: it was the human at every gate. Take that out and the only limit is how fast visitors arrive. The bolder the idea, the faster it lands.
At your traffic, a single night can settle 7.3 dramatic bold tests, or less than one subtle one. The bigger the swing, the sooner it lands.
an 8-hour night = 10,951 visitors to the block
Concluded A/B tests for a two-proportion read at 95% confidence, from a 3% baseline, page views spread evenly across the month. Bolder changes separate from the control faster; subtle ones take more traffic. The fully hands-off loop is experimental.
You stay in control. Every change waits for your one-click approval, and you see exactly what the AI proposes before it ships. The fully hands-off loop is running in our lab today.
Frequently Asked Questions
Everything you need to know about A/B testing in WordPress
Works better together
Accelerate is one toolkit, not four plugins
Start testing today
Join WordPress teams using Accelerate to optimize their content with data-driven decisions.
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