Article

5min read

How Marketing Teams Can Scale With AI

Until recently, A/B testing has often been a time-consuming process for marketing teams and involved a certain amount of guesswork. But by integrating AI tools into the testing process, brands can iterate at scale, analyze data fast, and drive customer engagement like never before.

Join the AI revolution

If you think AI now seems to be everywhere, you’re probably right. It’s safe to say that AI is currently creating seismic upheaval in the marketing technology landscape. One of the chief reasons for this is AIs ability to analyze large amounts of data incredibly quickly and find patterns in that data. And that’s something that happens to make it ideal for A/B testing.

The use of AI agents for A/B testing is literally a gamechanger for marketing teams, making it much easier to scale their testing and experimentation programs. Coming up with ideas to test, designing those tests, analyzing results, and implementing changes can take hours of your time. But a lot of this can be accomplished in a matter of clicks with AI, leaving your team more time to focus on high-level tasks.

This lets you to accelerate your testing program to a scale that is literally not humanly possible. And because everything AI does is driven by hard data, it also takes the guesswork out of testing and experimentation. It gives you the confidence that everything from generating ideas to analyzing reports is based on verifiable visitor trends on your website. It can also provide you with valuable insights that a human might otherwise miss.

All of this opens up a world of enhanced personalization and continuous optimization that marketers have until recently only been able to dream about. AI agents are now set to redefine A/B testing and drive unprecedented growth for those that make them part of their testing program.

Introducing Evi, your evidence-based marketing agent

Evi is AB Tasty’s AI-powered marketing agent designed for evidence-based decision making. It transforms complex data into clear, actionable strategies for repeatable, measurable results, ensuring every step you take is grounded in evidence.

Evi helps brands scale their experimentation by facilitating fast test launching without running out of ideas. But Evi is also designed to enhance human creativity and collaboration, not to replace them. Instead, Evi empowers marketing teams, helping them move from ideas to iteration quickly and confidently.

With Evi, your team can:

  • Greatly accelerate the testing process, speeding up your workflow with automated code generation and content suggestions
  • Extract deeper insights, all driven by actual website data and feedback using built-in AI analysis
  • Generate and prioritize test ideas based on your objectives and recent activity patterns

But don’t just take our word for it. Over 1,000 brands are already using Evi to constantly scale their testing and experimentation programs, resulting in noticeably accelerated campaign performance. By using Evi, they’ve reported:

  • 33% more campaigns created
  • 53% more campaigns launched
  • 73% faster experimentation

The pressure now on companies to integrate AI into their testing programs can mean they end up with multiple AI tools for specific tasks with varying degrees of compatibility. By using Evi across your entire testing workflow, you guarantee the same consistent level of quality, the same context, and the same great results. 

Features that transform how you test, learn, and grow

Evi’s six different AI agents will help you test with confidence, learn faster, and understand your users better than ever before.

Evi Ideas

Unsure about what you should be testing next? Evi Ideas will scan pages of your website and generate ideas for new tests based on hard data that will actually impact your testing roadmap.

Evi Hypothesize

Struggling to craft a strong hypothesis for your experiments? Evi Hypothesize uses an automated checklist of essential elements to help you turn fuzzy thoughts into a sharp, well-structured hypothesis that has clear objectives.

Evi Content

Still waiting for the development team to build your experiment? Evi Content will let you turn your vision into reality in just a few clicks. No matter how good you are at coding, Evi Content will let you instantly transform concepts into actual buildable experiments.

Evi Analysis

Tired of spending hours staring at colorful charts and wondering what they all mean? Evi Analysis will analyze your campaign data and deliver clear, actionable insights. It highlights winning variations and breaks down why they drive transactions so you can feel confident in your next move.

Evi Feedback

Feel like you’re drowning in feedback but don’t know what to do with it all? Evi Feedback takes the heavy lifting out of Net Promoter Score (NPS) and Customer Satisfaction (CSAT) campaigns. It analyses customer responses right within your reports, quickly identifying key themes and sentiment trends.

Evi Explore

Want to know if your tests will actually drive revenue? Evi Explore, powered by our own patented metric, RevenueIQ, lets you see what each test is worth before you launch. This gives you the confidence to make faster, more profitable decisions based on real revenue projections, rather than simply relying on traditional metrics like conversion rate or average order value (AOV).

Finally, AI you can trust

And you can rest assured that Evi only uses the right data for the right task. This guarantees that your data is secure, transparent, and under your control at all times.

  • Proprietary intelligence: Evi is exclusively trained on AB Tasty’s proprietary data. This ensures that it delivers relevant, experiment-ready outputs.
  • Your inputs are yours and yours alone: Key features like Evi Ideas and Evi Content only process the prompts and screenshots that you supply, ensuring they remain private.
  • Secure by design: The Evi Analysis feature runs entirely on AB Tasty’s own servers. No data is sent to external services.

Evi from AB Tasty grounds every step in evidence, notices what you don’t, and never gets it wrong, transforming how you optimize the digital experience.

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Article

4min read

Do Experimentation Platforms Slow Down Your Site? How AB Tasty Ensures Performance First

Website performance has never mattered more. Google Core Web Vitals now directly influence organic rankings, mobile conversions continue to dominate, and users expect instant experiences.

In this context, many digital teams ask the same question:

“Will an experimentation or personalization tool slow down my site?”

It’s a valid concern. After all, any third-party script has the potential to impact performance if it’s not engineered carefully.

In this article, we’ll break down what actually affects performance in an experimentation platform — and how AB Tasty has built a performance-first architecture that avoids common pitfalls.

1. The Real Reasons Experimentation Tools Can Slow Down a Website

Not all experimentation platforms behave the same. When performance issues appear, they usually come from a few well-identified causes.

1.1 Heavy, all-in-one tags

Some tools load everything upfront — all features, all experiments, for every visitor — even when most of that code is never used.

This leads to:

  • Slower execution in the browser
  • More JavaScript to download and process
  • Increased pressure on the main thread
  • Wasted network bandwidth on unused code

The result: a slower page and unnecessary work for the browser.

1.2 “Anti-flicker” scripts that block the page

To prevent visual flicker, many vendors solve flicker by hiding the page (e.g., opacity: 0) until the experiment loads.

While this may avoid a brief visual change, it comes at a cost:

  • The page cannot render immediately
  • First visual elements appear later (LCP, FCP)
  • It hurts SEO rankings
  • Users may face a noticeable “white screen,” especially on slower connections

The page looks stable — but it loads later than it should.

1.3 Limited optimization for modern websites

Modern websites are no longer simple static pages. Single-page applications, server-side rendering, and hydration flows all require precise timing.

When experimentation scripts are not adapted to these architectures:

  • They may re-run unnecessarily
  • They can interfere with rendering
  • They introduce delays that affect performance

2. AB Tasty’s Philosophy: Performance by Design, Not by Patch

At AB Tasty, we believe an experimentation platform should contribute to user experience — not compromise it. That’s why performance is woven directly into our architecture.

2.1 A lightweight, modular tag

AB Tasty uses a dynamic import system:

  • Visitors only load the code that applies to them
  • Unused features are never downloaded
  • The tag remains lightweight and efficient

This means:

  • Faster execution
  • Less JavaScript to process
  • Reduced impact on the browser

 The result: faster page rendering and minimal impact on Core Web Vitals. 

 3. No Anti-Flicker Masking — A Choice That Matters

Instead of masking slow performance with a CSS workaround, AB Tasty focuses on solving the root cause: delivering variations fast.

Why we don’t rely on anti-flicker masking:

  • It hides the website and delays the first visible content
  • It sends negative signals to Google
  • It degrades UX on slower devices
  • It increases the risk of bounce

How AB Tasty avoids flicker instead

AB Tasty applies variations:

  • In real time, as the page updates
  • In sync with the browser’s rendering cycle
  • Before the human eye can perceive any visual change

 Visitors always see a stable page — without flashes, jumps, or white screens.

 4. Designed for Modern Architectures

AB Tasty is built to work smoothly with today’s most common tech stacks:

  • Single-page applications (React, Vue, Angular…)
  • Server-side rendering frameworks (Next.js, Nuxt.js…)
  • Hybrid architectures

Our tag intelligently adapts to:

  • Route changes
  • Delayed or lazy-loaded components
  • Hydration phases
  • Dynamic content updates

 Experiments run reliably — without reloading pages or slowing down the app.

5. Measure the Performance Impact — Transparently

With the Performance Center, teams can:

  • Monitor tag size
  • Track the impact of each campaign
  • Follow performance guidelines and recommendations

This gives CRO and technical teams full visibility and control over experimentation performance.

Conclusion: You Can Experiment Without Sacrificing Speed

A fast digital experience and an experimentation program are not mutually exclusive.

With its modular architecture, modern rendering logic, and performance-first philosophy, AB Tasty enables brands to run impactful campaigns without jeopardizing SEO or UX.

If performance is a concern for your engineering or CRO teams, we’d be happy to share:

  • Performance benchmarks
  • Technical documentation
  • Best practices for Core Web Vitals
  • Case studies from top global brands

Experiment boldly — with a platform engineered for speed.

FAQs

Does A/B testing slow down your website?

Yes, but AB Tasty minimizes it. Our tag delivers < 100ms load time, < 500ms execution, and < 10ms from cache—making us 2x faster than Kameleoon. Plus, we block releases if Core Web Vitals degrade by > 2%.

Does A/B testing affect Core Web Vitals?

It can — but AB Tasty minimizes this impact through dynamic imports, optimized rendering logic, and non-blocking execution.

Do I need anti-flicker for A/B testing?

Most of the time, no. Anti-flicker masking can degrade SEO and create a poor user experience.

Is AB Tasty fast?

Yes — benchmarks from independent sources consistently show AB Tasty among the fastest experimentation tags on the market.