No bloated visual editors. No layout-breaking scripts. Just pure, server-side power for your Landing Page .
We’ve all been there: You use a "Drag-and-Drop" editor to move a button. It looks great on your desktop. Then you launch, and your mobile layout explodes.
"I spent 3 hours 'fixing' a headline in Optimizely's visual editor, only to find out it caused a 2-second layout shift (CLS) that tanked our Google rankings. Never again."
— Senior Growth Engineer @ Series B SaaS
We don't "edit" your code. We split your traffic. You build the variant in your own tools; we ensure the right user sees the right link. 100% Integrity. 0% Lag.
Don't send your expensive ad traffic through a generic test-link.com URL.
AB Split Kit lets you use your own branded subdomains for 100% professional continuity.
offers.yourbrand.com/summer-sale
try.yourproduct.com/vsl-v4
partner.yoursite.com/exclusive
Yes, for technical teams. VWO relies on heavy client-side JavaScript that causes layout shifts (flicker). AB Split Kit uses server-side redirects and a lightweight 2.4kb script, ensuring 0ms latency and better SEO scores.
AB Tasty is known for its visual editor, but that editor often injects bloated code. AB Split Kit is the best AB Tasty alternative because it focuses on rendering integrity. Your site stays fast, and your variants load instantly without the "flash of original content."
Optimizely has moved toward expensive "Full Stack" enterprise contracts. AB Split Kit gives you enterprise-grade Bayesian stats and high-volume scaling at a fraction of the cost, with no sales calls or 6-figure minimums required.
While Convert and Kameleoon offer great privacy, AB Split Kit's 1st-party cookie vid sync is specifically engineered to survive Safari's ITP and modern ad-blockers better than any client-side tool on the market.
Absolutely. Because we handle traffic splitting at the edge (or via a simple redirect), we are framework-agnostic. We don't inject DOM-manipulating scripts that break React hydration or cause conflicts in Single Page Apps.
We use a 1st-party cookie methodology combined with "Hush" deduplication. Unlike Google Optimize (sunsetted) or tools relying on 3rd-party cookies blocked by Safari ITP, our tracking persists for 30+ days.
Yes. We provide full CNAME support so your tracking links look like offers.yourbrand.com.
This builds trust with users and improves ad quality scores compared to generic tracking domains.
Legacy tools use clunky methods to "live-edit" your site, causing lag and broken layouts. AB Split Kit handles everything at the link level for 100% rendering integrity.
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. Assign variants server-side before the browser renders for pure, untainted data.
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.
A 2.4kb script handling client-side assignment, local storage, and 1st-party vid syncing.
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/*.
Optimizely and VWO are great for beginners who want to change button colors with a mouse. But for high-volume scaling, their "Visual Editors" inject heavy JS that slows your site and breaks your tracking.
vid sync stays sticky for 30+.
One flat rate for the full technical stack. Scale based on your monthly traffic.
vid Syncing