Question 1

What languages and frameworks does Keak support?

Accepted Answer

Keak works with virtually any website — HTML/CSS/JS, Next.js, React, Vue.js, Angular, Svelte, Astro, Remix, Vite, and Gatsby for JS frameworks, plus Shopify, WordPress, Webflow, Squarespace, Wix, and Framer for no-code platforms. The tracking pixel supports websites in 100+ languages, and you can target visitors by browser locale for market-specific testing.

Question 2

Will the pixel script slow down my site?

Accepted Answer

No — the Keak pixel is ~31KB gzipped, loads asynchronously (never blocks rendering), and has minimal impact on Core Web Vitals. An anti-flicker overlay prevents content flash (protecting your CLS score), and our SPRT-based statistics engine runs server-side. Variants are applied in under 100ms with zero layout shift.

Question 3

Where does Keak integrate?

Accepted Answer

Keak integrates anywhere you can add a JavaScript snippet to the <head> of your page. That covers all major JS frameworks (Next.js, React, Vue, Angular, Svelte, Astro, Remix), no-code builders (Shopify, WordPress, Webflow, Squarespace, Wix, Framer), and plain HTML sites. We provide platform-specific installation guides for every supported platform.

Question 4

Do you have an API?

Accepted Answer

Yes. Keak provides a REST API for programmatic access — create tests, retrieve results, manage variations, and trigger webhooks. API access is available on the Pro and Enterprise plans. You can also configure webhooks to receive real-time notifications when a test reaches significance, a winner is declared, or traffic thresholds are hit.

Question 5

What are the plan limits?

Accepted Answer

Keak uses usage-based pricing. You pay $0.005 per impression, with no monthly subscription and no seats. Free accounts can build and preview variants without a card, and get 25 variants, 3 image variants, and 1 domain per month. Tests don't serve traffic until you add a payment method; once you do, variants, images, and videos all become unlimited, and you only pay $0.005 per impression for what you actually serve. Enterprise is fully custom, with volume discounts, a dedicated account manager, API access, and commercial SLAs.

Question 6

How does Keak work with ad campaigns?

Accepted Answer

Keak optimizes the landing pages your ads send traffic to, not the ad creatives themselves. You can A/B test headlines, CTAs, layouts, and copy on any landing page, then measure conversion uplift directly from ad traffic. This means your ad spend goes further — the same budget, but significantly better page performance. For ad creative testing, use your ad platform's native tools alongside Keak.

Conversion optimizationthat runs itself.

Two ways to ship a higher-converting page.

Paste a URL. Launch a test.

Your hands on every variant.

Pick conversion goal, generate variants, and ship the winner.

Scan your page

Generate and launch

Ship and optimize again

Keak CRO agent, in your team chat.

Common questions

What languages and frameworks does Keak support?

Usage-based pricing

How many impressions do you need per month?

Stop waiting days to test a change.