No visual editor bloat. No layout-breaking scripts. Just simple, lightning-fast server-side link routing designed for VSL Funnels .
Every millisecond your page spends loading a heavy visual editor script is a millisecond your VSL isn't playing. Legacy tools force your visitors to see the "original" page before snapping to the variant. That split-second flicker kills conversions and wastes media spend instantly.
"I spent $15k on Facebook Ads, only to find out VWO's heavy script caused a 500ms flicker that tanked our VSL conversion rate on mobile. Switching to pure link rotation under our own domain saved our campaign."
— Head of Media Buying @ 8-Figure DR Empire
We don't "edit" your code. We split your traffic at the link level. You build the variant in your own tools; we ensure the right user sees the right link. 100% Speed. 0% Flicker.
Don't send your expensive media buy traffic through generic tracking domains. AB Split Kit allows you to run all your A/B split testing directly under your own branded subdomains. Maintain brand consistency, bypass tracking blockers, and increase ad quality scores.
offers.yourbrand.com/summer-sale
try.yourproduct.com/vsl-v4
partner.yoursite.com/exclusive
Yes, absolutely. VWO relies on heavy client-side JavaScript that slows down page-loads, causing a delay before your VSL plays. AB Split Kit handles redirects server-side. Your traffic splits in milliseconds under your own custom domain, ensuring maximum page speed and zero layout flicker.
Using generic tracking domains ruins brand trust, lowers Facebook/Google ad quality scores, and gets flagged by modern ad-blockers. AB Split Kit lets you CNAME your own domain (e.g., `try.yourbrand.com`), keeping all traffic fully whitelabeled and trusted.
Yes. Because your traffic is routed through your own 1st-party custom domain, modern browsers do not treat it as cross-site or 3rd-party tracking. Visitor identity remains sticky, and your data stays 100% accurate, even over 30+ days.
Enterprise tools like Optimizely are bloated with features that direct response teams don't need—like visual editors. They require painful sales calls and $50k/yr minimums. We offer pure link-level split testing with enterprise-grade Bayesian statistics for a flat monthly fee.
Yes. Because we handle traffic splitting at the link/redirect level (or via a simple, lightweight script), we are 100% platform-agnostic. We don't inject DOM-manipulating scripts that break template layouts, checkout pages, or custom styling in your funnel builders.
We use a 1st-party custom domain methodology combined with "Hush" deduplication. Unlike tools relying on 3rd-party tracking scripts blocked by Safari ITP and modern ad-blockers, our tracking remains sticky for 30+ days, ensuring accurate conversion attribution.
Our redirect engine is built on a global, high-performance edge network. Redirects are processed in under 10ms, which is completely imperceptible to your visitors. They will land on your variant instantly, with zero lag or delay to your media funnel.
Legacy tools inject heavy JS and load your pages slowly, causing high bounce rates on expensive media. AB Split Kit handles everything at the link level with custom domains for 100% rendering speed and zero flicker.
Don't "tweak" your site in a browser window. Build your variants in your native CMS or landing page builder, and we'll split the traffic between them with millisecond precision.
Because we don't inject CSS or modify your HTML on the fly, your variants load exactly as they were designed. No "flash of original content," ever.
Eliminate flicker entirely. Route traffic on your CNAME'd custom domains (e.g., try.yourbrand.com) before the browser even starts rendering.
Unique, unguessable entry links for email and ads. Log impressions before the user even hits your site.
Precise traffic splitting logic that respects your exact percentages for control and test variants.
Maintain visitor assignments for 30+ days using 1st-party cookies that survive modern browser blocks.
Intelligent tracking that prevents server-side and JS-side triggers from double-counting the same visit.
Automatically carry UTMs and tracking parameters from source to destination without losing attribution.
Call winners faster with "Probability to be Best" metrics powered by Monte Carlo simulations.
High-resolution time-series visualizations of impressions and conversions via Chart.js integration.
Deep-dive into specific marketing windows with flexible filtering and goal-specific analysis.
Toggle views between different goals (Signups vs. Purchases) within a single experiment view.
Live calculation of conversion percentages per variant based on unique visitors and raw events.
Soft-delete experiments to keep the dashboard clean while preserving historical data integrity.
Maintain visitor data seamlessly across your entire funnel. Ensure your tracking survives Safari ITP, iOS privacy updates, and ad-blockers.
Track conversions via URL matches, parameter presence, or the state of specific JS variables.
Auto-generated code snippets to fire custom conversion events directly from your application logic.
Pass Visitor IDs from customer sites to the AB server to bypass 3rd-party cookie blocking in Safari.
Lock experiments to specific domains (e.g. app.yoursite.com) for secure environment control.
Deploy experiments site-wide using flexible URL pattern matching like /blog/*.
VWO and AB Tasty are built for corporate sites that don't care about a 2-second page lag. But for high-volume VSL and direct response campaigns, page-speed is everything. Our link-level routing runs entirely under your own custom domain, bypassing heavy scripts and layout shifts.
vid sync stays sticky for 30+.
Get full, unlimited access to custom domains, the server-side redirect engine, and Bayesian statistics. Pay only for the traffic you scale.
vid Syncing