--- title: "A/B Testing Statistics: Only 3.2% of Websites Run a Tool" url: https://www.suffdigital.com/resources/data-studies/ab-testing-tool-adoption description: "A/B testing statistics: only 3.2% of websites run a testing tool on their homepage, peaking at 8.2% among sites ranked 1,000 to 10,000. See the data." lang: en --- Share Share on X: https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fab-testing-tool-adoption&text=Only%203.2%25%20of%20Websites%20Run%20an%20A%2FB%20Testing%20Tool%20on%20Their%20Homepage Share on Facebook: https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fab-testing-tool-adoption Share on LinkedIn: https://www.linkedin.com/sharing/share-offsite/?url=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fab-testing-tool-adoption Share on Reddit: https://www.reddit.com/submit?url=https%3A%2F%2Fwww.suffdigital.com%2Fresources%2Fdata-studies%2Fab-testing-tool-adoption&title=Only%203.2%25%20of%20Websites%20Run%20an%20A%2FB%20Testing%20Tool%20on%20Their%20Homepage Only **3.2%** of websites, 502,427 in all, load an A/B testing tool on their homepage, fewer than one in thirty. Adoption peaks at 8.2% among websites ranked 1,000 to 10,000 by popularity, and falls to 4.9% among the 1,000 most visited websites. Analysis of 15,470,478 website homepages · the public HTTP Archive crawl and Google's Chrome UX Report, September 2026 ## Key Findings 1. 1. Only **3.2%** of websites, 502,427 in all, run an A/B testing tool on their homepage, fewer than one website in thirty. Copy stat 2. 2. A/B testing tools peak at **8.2%** of websites ranked 1,000 to 10,000 by popularity, against 4.9% of the 1,000 most visited websites. Copy stat 3. 3. Websites outside the 10 million most visited run an A/B testing tool **2.8%** of the time. Copy stat 4. 4. WordPress websites run A/B testing tools at **6.5%**, B2B websites at 5.4%, online stores at 4.2% and Shopify stores at 2.2%. Copy stat 5. 5. Spanish (.es) websites run A/B testing tools at **11%**, the highest of any country domain, against 1.8% for .us websites. Copy stat ## Summary A marketing team argues about a homepage headline. One version promises speed, the other promises savings. Without a test, the loudest voice or the most senior person wins. With an A/B test, half the visitors see each version and the numbers decide. A/B testing is the core method of conversion rate optimization: show two versions of a page to comparable visitors and keep the one that produces more sales or leads. It turns opinions about design and copy into measured results, and small wins on a busy page add up. A testing tool is the software that splits the traffic and tracks the outcome. Only **3.2%** of websites run an A/B testing tool on their homepage. Even in the most active group, sites ranked 1,000 to 10,000 by popularity, the share is 8.2%, fewer than one in twelve. For small and mid-size businesses, the story is plain: almost none are running homepage experiments with a testing tool. ## What we measured We used the September 2026 HTTP Archive crawl, a public record of 15,470,478 website homepages and the technologies each one loads. We counted every homepage that loads at least one A/B testing tool, such as Optimizely, VWO, AB Tasty or Convert, then split the results by popularity, platform, site type and country domain. Popularity ranks come from Google's Chrome UX Report, which groups websites by how many Chrome users visit them: the top 1,000, those ranked 1,000 to 10,000, and so on down to websites outside the 10 million most visited. Online stores are websites running an ecommerce platform; B2B websites are those running marketing automation software. Country domains are web addresses ending in a country code, such as .es for Spain. ## Fewer than one website in thirty tests 3.2% of websites run an A/B testing tool on their homepage. That is 502,427 websites. For a business, the low rate is less a comfort than an opening. A single well-run test on your highest-traffic page can settle an argument about a headline, an offer or a layout with evidence, and most of your competitors are not doing it. ## The middle of the web tests the most 8.2% of websites ranked 1,000 to 10,000 by popularity run an A/B testing tool, the highest of any tier. Adoption climbs with popularity, from 2.8% among websites outside the top 10 million to 3.5% for the top 1 million to 10 million, 4.6% for the top 100,000 to 1 million, and 7% for the top 10,000 to 100,000, before peaking at 8.2%. Then it drops to 4.9% among the 1,000 most visited websites. Share with an A/B testing tool by popularity tier Top 1,000 4.9% Top 1,000 to 10,000 8.2% Top 10,000 to 100,000 7% Top 100,000 to 1M 4.6% Top 1M to 10M 3.5% Beyond top 10M 2.8% Source: Suff Digital analysis of 15,470,478 website homepages · the public HTTP Archive crawl and Google's Chrome UX Report, September 2026 | Popularity tier | Websites | Share with an A/B testing tool | | --- | --- | --- | | Top 1,000 | 754 | 4.9% | | Top 1,000 to 10,000 | 6,746 | 8.2% | | Top 10,000 to 100,000 | 67,308 | 7% | | Top 100,000 to 1M | 708,042 | 4.6% | | Top 1M to 10M | 7,646,204 | 3.5% | | Beyond top 10M | 7,041,424 | 2.8% | The biggest sites often build their own testing systems in-house rather than buying a tool. The busy sites just below them, with enough traffic to reach a result quickly, are the heaviest users of off-the-shelf testing software. ## WordPress and B2B sites test the most WordPress websites run A/B testing tools at 6.5%, B2B websites with marketing automation at 5.4%, and online stores at 4.2%. Shopify stores sit at 2.2%, the lowest of the site types measured. Share with an A/B testing tool by group Online stores 4.2% Shopify stores 2.2% WordPress sites 6.5% B2B sites (marketing automation) 5.4% .us 1.8% UK domains 3.8% Canada domains 3.5% Australia domains 2% .de 6.1% .fr 7.4% .es 11% EU country domains 6% | Group | Websites | Share with an A/B testing tool | | --- | --- | --- | | Online stores | 3,911,812 | 4.2% | | Shopify stores | 729,553 | 2.2% | | WordPress sites | 4,945,342 | 6.5% | | B2B sites (marketing automation) | 494,111 | 5.4% | | .us | 24,234 | 1.8% | | UK domains | 326,939 | 3.8% | | Canada domains | 140,815 | 3.5% | | Australia domains | 183,104 | 2% | | .de | 554,459 | 6.1% | | .fr | 280,999 | 7.4% | | .es | 121,265 | 11% | | EU country domains | 2,845,274 | 6% | By country, continental Europe tests more than the English-speaking markets. Spanish domains lead at 11%, French at 7.4% and German at 6.1%, and EU country domains as a group reach 6%. UK domains sit at 3.8%, Canadian at 3.5%, Australian at 2% and .us domains at 1.8%. ## What this means for marketers and site owners If you are not testing, neither is almost every other website, and that is an opening. Pick your highest-traffic page and one question that matters: the headline, the main offer, the button wording or the length of a form. Run one clean test until it has enough visitors to call, and act on the result. You do not need heavy software to start; many website platforms and email tools include basic split testing. What matters more is a steady habit of testing one change at a time. Our conversion optimization services (https://www.suffdigital.com/services/cro) design and run those tests and report what each one changed in leads and revenue. ## Embed this research Paste this on your site to embed the charts. It links back to the source automatically.

Source: Only 3.2% of Websites Run an A/B Testing Tool on Their Homepage - Suff Digital

## Cite this study APA Suff Digital. (2026). Only 3.2% of Websites Run an A/B Testing Tool on Their Homepage. https://www.suffdigital.com/resources/data-studies/ab-testing-tool-adoption Plain link Only 3.2% of Websites Run an A/B Testing Tool on Their Homepage - Suff Digital - https://www.suffdigital.com/resources/data-studies/ab-testing-tool-adoption ## Frequently asked questions ### What percentage of websites use A/B testing? ### Do the biggest websites use A/B testing tools the most? ### Do Shopify stores use A/B testing tools? ### Which countries use A/B testing tools the most? ## Related studies - CRO Microsoft Clarity Now Runs on 3.25 Times as Many Websites as Hotjar: https://www.suffdigital.com/resources/data-studies/microsoft-clarity-growth-heatmap-tools - CRO Only 2.1% of Online Stores Personalize Their Homepage vs 8.4% of High-Traffic Stores: https://www.suffdigital.com/resources/data-studies/ecommerce-personalization-software - CRO 35.9% of Small Websites Have No Analytics Installed, Leaving Owners Blind to Their Visitors: https://www.suffdigital.com/resources/data-studies/small-business-websites-no-analytics - CRO 21.7% of Shopify Stores Run Klaviyo Email Marketing vs 4.9% of All Online Stores: https://www.suffdigital.com/resources/data-studies/klaviyo-online-store-adoption ## Structured data ```json [ { "@context": "https://schema.org", "@graph": [ { "@type": "Organization", "@id": "https://www.suffdigital.com/#organization", "name": "Suff Digital", "alternateName": "Suff Digital Marketing", "url": "https://www.suffdigital.com/", "logo": { "@type": "ImageObject", "@id": "https://www.suffdigital.com/#logo", "url": "https://www.suffdigital.com/logo.png", "contentUrl": "https://www.suffdigital.com/logo.png", "caption": "Suff Digital" }, "image": { "@id": "https://www.suffdigital.com/#logo" }, "description": "Suff Digital is a full-stack digital marketing agency that turns websites into predictable revenue engines, SEO, paid media, content, CRO, and web design built around revenue, not vanity metrics.", "slogan": "Digital marketing built for what's next.", "email": "hello@suffdigital.com", "telephone": "+1-629-236-0099", "foundingDate": "2022", "founder": { "@type": "Person", "name": "Matt Suffoletto", "jobTitle": "Founder & CEO" }, "contactPoint": [ { "@type": "ContactPoint", "telephone": "+1-629-236-0099", "email": "hello@suffdigital.com", "contactType": "sales", "areaServed": "US", "availableLanguage": [ "en" ] } ], "address": { "@type": "PostalAddress", "addressLocality": "Nashville", "addressRegion": "TN", "postalCode": "37219", "addressCountry": "US" }, "areaServed": { "@type": "Country", "name": "United States" }, "sameAs": [ "https://www.linkedin.com/company/suff-digital/", "https://www.instagram.com/suffdigital/", "https://www.youtube.com/@suffdigitalmarketing", "https://www.tiktok.com/@suffdigital" ], "knowsAbout": [ "Search Engine Optimization", "Pay-Per-Click Advertising", "Paid Social Advertising", "Conversion Rate Optimization", "Web Design", "Digital PR", "Link Building", "Website Migration", "Website Maintenance and Support", "Technical SEO", "Local SEO", "AI Search Optimization" ], "hasOfferCatalog": { "@type": "OfferCatalog", "name": "Suff Digital Services", "itemListElement": [ { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Search Engine Optimization (SEO)", "url": "https://www.suffdigital.com/" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Pay-Per-Click (PPC) Advertising", "url": "https://www.suffdigital.com/services/ppc" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Paid Social Advertising", "url": "https://www.suffdigital.com/services/paid-social" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Conversion Rate Optimization (CRO)", "url": "https://www.suffdigital.com/services/cro" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Web Design", "url": "https://www.suffdigital.com/services/web-design" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Digital PR & Link Building", "url": "https://www.suffdigital.com/services/digital-pr" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Website Migration", "url": "https://www.suffdigital.com/services/website-migration" } }, { "@type": "Offer", "itemOffered": { "@type": "Service", "name": "Website Maintenance & Support", "url": "https://www.suffdigital.com/services/website-maintenance" } } ] } }, { "@type": "WebSite", "@id": "https://www.suffdigital.com/#website", "url": "https://www.suffdigital.com/", "name": "Suff Digital", "inLanguage": "en-US", "publisher": { "@id": "https://www.suffdigital.com/#organization" } } ] }, { "@context": "https://schema.org", "@graph": [ { "@type": "Article", "@id": "https://www.suffdigital.com/resources/data-studies/ab-testing-tool-adoption#article", "headline": "Only 3.2% of Websites Run an A/B Testing Tool on Their Homepage", "description": "Only 3.2% of websites, 502,427 in all, load an A/B testing tool on their homepage, fewer than one in thirty. 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