Agencies 2026
AB Split Test for WordPress agencies & freelancers.
The agencies that test keep the retainers
Your clients can’t see the hours behind a rebuild. They see leads, calls and bookings — and when those dip after a launch, the retainer conversation gets awkward.
AB Split Test turns client sites into lead machines you can prove are working — with an AI assistant that finds the test ideas, and one licence that covers every site you manage.
Unlimited sites
One licence, every client
Agency Hub
Every result, one dashboard
CROassist AI
Test ideas on autopilot
No CC required
1,250+ active licences · Shipping since 2018 · One agency runs it on 199 client sites — on one licence
The retainer cycle…
A month of CRO work, delivered
Agencies don’t buy testing tools. They buy the ability to pitch, deliver and bill optimization month after month. Here’s how that looks with AB Split Test.
1. Pitch it
Run the AI audit and competitor comparison on a prospect’s site before the sales call. Walk in with findings and a test plan instead of a slide deck.
2. Find it
Heatmaps and session replays show where visitors hesitate. CROassist turns that into a ranked backlog of test ideas — “what should we test this month” is never a blank page again.
3. Test it
Point and click on anything, in whatever builder the client’s site uses. Full-page tests for redesigns. We call the winner, with the stats to back it up.
4. Bill it
Revenue-tied results and shareable reports. “Kevin, conversions are up 4% again this month — that’s 100 extra orders. Invoice attached.”
The Agency Hub: every client’s tests, winners and heatmaps in one dashboard — included with the Teams plan.
“A great plugin that’s helped us align our messaging and convert more leads.” — TEO, stealthagents.com
The agentic future…
Agentic CRO that backs it up
An AI that finds the issues and proposes the fixes — and the only one that backs it up: real users verify every change, statistically, on your clients’ actual traffic.
The agent proposes
CROassist audits the funnel, reads the heatmaps and session replays, and drafts prioritized fixes. Or bring your own agents over REST, WP-CLI and MCP.
Real users verify
Every fix ships as a split test, not a leap of faith. Real visitors decide what actually converts.
The loop closes
Winners become the new baseline; losers teach the agent what to try next. Agentic loops are only as good as their feedback — split testing is that feedback.
“AB Split Test makes it incredibly easy to base decisions on real data instead of assumptions.” — Nedim M., Project Manager
Licence maths your bookkeeper will like.
Most CRO tools punish agencies for growing. We don’t.
No per-pageview metering.
Nelio meters tested pageviews. VWO charges by visitor. Hotjar charges by session. Your AB Split Test licence has zero traffic limits — 10,000 visitors or 10 million, same price.
One licence, every site.
Teams ($49/mo or $399/yr) and Lifetime ($999) cover unlimited client, staging and dev sites. No per-site fees — and winning patterns replicate across similar clients for free.
The upsell you came for.
Care plans bill $150–300 a month. CRO retainers bill $3,000+. AB Split Test is the delivery system that takes your service from the first number to the second.
Get paid to recommend it.
Our affiliate program pays 20% on every licence you refer — clients, peers, or your audience. 86 affiliates already do.
“Dead simple to set up. I’ve paid thousands more annually on more complex tools to do the same things. Do yourself a favor, you won’t regret it!” — Ryan Waterbury, onedog.solutions
The honest bit…
“But what about our low-traffic clients?”
They still get better every month — you just lean on evidence and engagement instead of waiting for sale-sized sample sizes:
CROassist ideas, backed by evidence
Genuine improvement ideas backed by logic, heatmaps and session replays — not guesswork. Watch where visitors hesitate, fix what’s obviously broken, no minimum traffic required.
Test on the high-traffic pages
Even small clients concentrate visits on a few pages — usually the ad landing pages. Run the split tests there, where the numbers actually accumulate.
Measure engagement, not just sales
Conversion metrics like scroll depth and time on page accumulate far faster than orders — so tests reach a confident answer even on modest traffic.
“It’s been especially helpful for optimizing landing pages, helping us achieve better traffic and longer time spent on pages.” — Verified user, legal services
Your clients’ stacks…
Works with whatever your clients built
You don’t choose your clients’ tech. Bricks, Elementor, Blocks, Breakdance, Beaver Builder, Oxygen, WPBakery — plus shortcodes, CSS selectors and custom themes. Test from inside the builder, not from a bolted-on editor.
Plays nice with hosting
Cache-, CDN- and cheap-VPS-friendly, with zero third-party calls. Full-page tests can even run at the Cloudflare edge.
Feeds your analytics
Test events forward to GA4, Meta Pixel, Matomo, Plausible, Mixpanel and Clarity — so results show up where you already report from.
Automate the boring parts
Full REST API, WP-CLI and MCP server — script test creation across sites, or let your own AI tools manage tests for you.
“The plugin is smooth, super powerful and easy to integrate. Runs smoothly even on cheap hosting. If you’re a beginner: buy it. If you’re a pro: buy it.” — digitalfastmind.com
The client relationship…
Built for handing off without headaches
Your clients can contact us
Clients on sites you licence get direct support. You stay the hero; we handle the “how do I”.
Reports clients actually read
Shareable public results pages with the revenue numbers front and center — plus white label when it should look like yours.
GDPR by architecture
No remote servers, no remote cookies, no user-identifying data. Client data never leaves their WordPress install — one less clause in your contracts.
Shareable results — send the client a link, not a PDF they won’t open.
“I even used the included shortcode as a jumping-off point to make a reporting dashboard for my director. And I can send final results to our CRM as well. It’s stuff like that we wouldn’t be able to do in the crazy expensive tools!” — Aaron S., Bryant & Stratton College
★★★★★
“It feels like it was built by WordPress professionals, for WordPress professionals.”
“We’ve been building and managing WordPress sites professionally for years, and finding a reliable A/B testing solution that integrates seamlessly with the WordPress ecosystem has always been a challenge. Since we’ve been using the plugin, we ran several tests and optimized our landing pages according to the results.”
— Florian, fdmedia.io
“The free version is better than most paid split testing plugins out there. Plus the included demo with AI analysis discovered some real problems.”
— Kyle, Optics Marketing
Quick answers
What’s free? One active test (one variation, one goal), forever, in every builder — plus a 7-day trial of everything Pro on install.
Will it slow client sites? No. Everything runs locally, zero third-party calls, fully cache-compatible.
Per-client licences? Never. Teams and Lifetime cover unlimited sites you manage.
Be the agency that proves it.
Install free and run the AI audit on your own agency’s site first — heatmaps, session replays and a ranked test plan included. See exactly what you’d be selling your clients.
Free forever. 7-day trial of all Pro features included. No credit card.
Prefer to talk it through first? Book a call — a human, not a demo funnel.