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A/B testing

Optimizely market share in the UK

Optimizely runs on 0.5% of UK websites in our sample (58 of 11,322). Market share by country, top sites using it and technologies it is paired with.

0.5%
Share in United Kingdom
58 / 11,322
0
sites in Tranco top 1K
1 in top 10K
#235,502
median Tranco rank
Tranco
<0.1%
Among local business websites
9 / 20,305
16
frequent companions
Google Tag Manager

By market

  1. United Kingdom0.5%58
  2. Global0.7%452
  3. Netherlands0.3%26
  4. Italy0.2%13
  5. Spain0.3%12
  6. Japan0.1%13
  7. Latin America<0.1%17

Trend

Often used with

  1. Google Tag ManagerTag managers88%×2.1
  2. OneTrustCookie consent (CMP)41%×7.4
  3. BootstrapCSS frameworks41%
  4. ReactWeb frameworks36%×5.2
  5. Next.jsWeb frameworks33%×6.4
  6. CloudflareCDN33%
  7. jQueryJavaScript libraries33%
  8. TrustpilotReviews19%×2.5
  9. Tailwind CSSCSS frameworks19%×1.9
  10. ASP.NETWeb frameworks16%×2.2

Top sites using Optimizely All 58 sites

TrancoSiteAlso usesHosting
1,848featurespace.co.uk Adobe Experience ManagerCloudflareCloudflare Bot ManagementEnvoyGoogle Tag ManagerNext.js Amazon Web Services
12,109virginmediao2.co.uk Google Cloud CDN / GFEGoogle Tag ManagerNext.jsReactSpeedCurve LUXStoryblok Google Cloud
13,066rhs.org.uk ASP.NETBootstrapCloudflareCloudflare Web AnalyticsGoogle Marketing Platform (DV360/CM360)Google Publisher Tag (Ad Manager) Cloudflare
19,068blueyonder.co.uk Google Cloud CDN / GFEGoogle Tag ManagerjQuery 3.7.1Next.jsReactSpeedCurve LUX Ntl Virgin Media Limited
23,411o2.co.uk Azure Front Door / CDNGoogle Cloud CDN / GFEGoogle Tag ManagerNext.jsReactSpeedCurve LUX Microsoft Azure
24,828ageuk.org.uk ASP.NETAzure App ServiceCloudflareGoogle Tag ManagerModernizr Episerver As Optimizely Ab
44,321game.co.uk Akamai Bot ManagerAkamaiAlgoliaBootstrapGoogle Tag ManagerjQuery Akamai
58,146studio.co.uk Akamai Bot ManagerAkamaiBootstrapGoogle Tag ManagerNext.jsOneTrust Akamai
62,668ii.co.uk Amazon CloudFrontGoogle Tag ManagerNext.jsOneTrustReact Amazon Web Services
63,273architectsjournal.co.uk Adobe Experience Platform TagsGoogle AdSensecore-jsGoogle Marketing Platform (DV360/CM360)Font AwesomeGoogle Fonts Amazon Web Services
74,367ajbell.co.uk BootstrapAmazon CloudFrontDrupalEnvoyFont AwesomeGoogle Tag Manager Amazon Web Services
76,481talktalk.co.uk Angular 16.2.12ContentfulEnvoyfluctGoogle Tag ManagerjsDelivr F5 F5 Networks Sarl
100,334furniturevillage.co.uk BazaarvoiceBootstrapCloudflareCloudflare Web AnalyticsGoogle Marketing Platform (DV360/CM360)Google Tag Manager Vercara Vercara Llc
112,790cscdns.uk Azure Front Door / CDNBootstrapGoogle Tag ManagerjQuery 3.7.1OneTrustGoogle reCAPTCHA Csc Corporation Service Co...
117,312thejockeyclub.co.uk Azure App ServiceBootstrapCloudflareGoogle Tag ManagerjsDelivr Episerver As Optimizely Ab
121,692purplebricks.co.uk Azure Front Door / CDNContentfulCookiebot (Usercentrics)Google Tag ManagerNext.jsReact Microsoft Azure
124,783axa.co.uk ASP.NETCloudflareCloudflare Web AnalyticsGoogle Tag ManagerjQuery 3.5.1Swiper Episerver As Optimizely Ab
134,827alpinetrek.co.uk CloudflareCloudflare Bot ManagementGoogle Cloud CDN / GFEGoogle Tag ManagerNew RelicOneTrust Cloudflare
137,206tapi.co.uk BootstrapCloudflareCookiebot (Usercentrics)Font AwesomeGoogle Tag Managerimpact.com Cloudflare
159,568ramsayhealth.co.uk Adobe FontsASP.NETAzure App ServiceBootstrapCloudflareGoogle Tag Manager Episerver As Optimizely Ab
177,167bestwaywholesale.co.uk cdnjsMicrosoft ClarityCivic Cookie ControlGoogle Tag ManagerHotjarjQuery 3.7.1 Ukfast Ans Academy Limited
179,164hiscox.co.uk AcquiaBootstrapCloudflareCloudflare Bot ManagementCloudflare Web AnalyticsGoogle Marketing Platform (DV360/CM360) Amazon Web Services
180,633pokerstars.uk Google FontsGoogle Tag ManagerOneTrustSentryUniversal Analytics (legacy) Amazon Web Services
182,514michaelpage.co.uk AcquiaBootstrapCloudflareDrupalFont AwesomeGoogle Tag Manager Amazon Web Services
188,306barratthomes.co.uk ASP.NETBootstrapGoogle Tag ManagerImperva (Incapsula)OneTrustGoogle reCAPTCHA Imperva

Our crawler: 11,322 sites · United Kingdom · updated 13 Nov 2026 · Methodology

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