"Simple and easy to use!"
"Exceeded my expectations!"
"Very fast load times!"

A/B Testing For Single Page Application (SPA)

Our A/B testing tool works with SPA by loading using URL change or monitoring for specific DOM changes.

Forever free up to 100,000 visitors
Feature guide

A/B testing for SPAs without brittle page reload assumptions

Single page applications need tests that understand route changes, delayed DOM rendering, and dynamic components. Mida helps teams test modern websites without giving up marketer control.

Route-aware experiments

Target experiments to SPA routes, campaign URLs, and important page states so visitors see the right variant even when navigation happens client-side.

Works with dynamic UI

Use visual edits for simple changes and custom code when you need to wait for components, change stateful UI, or handle dynamic content.

Marketing speed for modern stacks

Give growth teams a safe workflow for testing headlines, layouts, forms, and CTAs on React, Vue, Webflow, Framer, or other modern frontend sites.

How SPA testing works in practice

SPA experiments need clear triggers and stable targeting. Mida keeps the setup understandable for marketers while still giving technical teams control when needed.

  1. Choose the route or stateDefine the URL, path pattern, or page condition where the experiment should run.
  2. Apply the variant after renderCreate the change after the target component is available, reducing flicker and broken variants.
  3. Track the same user journeyMeasure goals across navigation events so single page flows still produce reliable conversion data.

Is this the same as SDK-based feature experimentation?

No. Mida is best for client-side website and marketing experiments. SDK-based feature experimentation is better for backend logic, native apps, and deep product features.

Can Mida test SPAs built with React or Vue?

Yes, as long as the site allows custom JavaScript. Mida can target routes and apply variants after dynamic content renders.

What SPA experiments should teams start with?

Start with navigation, onboarding steps, forms, pricing CTAs, page-level messaging, and other changes that do not require backend logic.

Trigger Test By DOM

Easily setup SPA triggers for your experiment

Trigger by URL changes

Trigger by any DOM changes

Trigger by a specific DOM change

Instantly when page loads

Handy visual editor

Make changes NOW without waiting for your dev team to make time!

Simply click and edit to make changes on your copy, image URL and styling

Drag-and-drop to reposition elements

Fastest in the industry

Avoid long page load times that can hurt your conversion rates

Script size is on average 17x smaller

Test loading speed is on average 100% faster

Frequently asked questions

What is Monthly Tested Users (MTU)?

Tested users are individuals who visit your website and are included in any of the A/B tests you're conducting. We have created an easy visualization of MTU here.

How does Mida count Monthly Tested Users (MTU)?

Mida counts an MTU when a unique visitor interacts with at least one active experiment within a billing month. Each user is counted only once per month, regardless of how many experiments they participate in or how many pages they view. Click here to learn more.

Why does the Growth plan include only 5 projects?

For most teams, 5 projects are more than enough. We typically see customers using 1–2 projects (for example, one for a landing site and one for an app). If you need more than 5 projects, you’re likely managing multiple sites or clients. Reach out to us about our Agency plan, which is better built for that use case.

How does Mida affect my site speed?

Mida is designed to have minimal impact on your site speed. Our script is 15KB compressed and typically much smaller and faster than most competitors, keeping your website's performance smooth. You can see a detailed comparison of script and loading times here.

Can I use Mida for native Mobile Development?

It is in closed beta for now. Contact us through email to get into the beta testing for free.

Can it run on my website (Webflow/Wix/Framer/etc)?

Mida works with almost all websites that allow the addition of custom HTML codes.

Can it run on funnel sites?

Yes, it works on all website funnels that allow you to inject custom HTML codes to the HEAD section.

Do you support cross domain testing?

Yes, Mida supports cross-domain testing! You can use the same project snippet across different websites or domains. Add the unique project snippet to each site you want to test or track goals within the same project.

Do I need to pay separately for Live Deployment and Personalization?

No, it's all covered within the Growth plan. Our pricing plan doesn't charge you separately on features, it's purely a usage-based pricing model with all features covered.

Do you offer an agency portal to see all clients and results, or are clients on separate accounts?

Yes. Mida supports flexible agency setups, depending on how you work with your clients and handle billing. Click here to read more.