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A/B testing

Optimizely market share on brand websites

Optimizely runs on 2.7% of brand websites in our sample (35 of 1,277). Market share by country, top sites using it and technologies it is paired with.

2.7%
Share in UK brands
35 / 1,277
0
sites in Tranco top 1K
5 in top 10K
#29,328
median Tranco rank
Tranco
16
frequent companions
Google Tag Manager

By market

  1. UK brands2.7%35
  2. United Kingdom0.5%58
  3. Global0.7%452

Trend

Often used with

  1. Google Tag ManagerTag managers71%
  2. ReactWeb frameworks49%×2.4
  3. Next.jsWeb frameworks40%×2.5
  4. CloudflareCDN34%
  5. OneTrustCookie consent (CMP)34%
  6. Akamai Bot ManagerSecurity & bot protection29%×2.3
  7. AkamaiCDN29%×2.1
  8. BootstrapCSS frameworks29%
  9. jQueryJavaScript libraries20%
  10. Tailwind CSSCSS frameworks17%

Top sites using Optimizely All 35 sites

TrancoSiteAlso usesHosting
2,005sky.comAdobe Experience Platform TagsAkamai Bot ManagerAkamaiGoogle Cloud CDN / GFEGoogle Tag ManagerNext.jsBskyb Broadband As Sky Uk Li...
3,818routledge.comBootstrapCloudflareCloudflare Bot ManagementCloudflare Web AnalyticsFont AwesomeGoogle FontsCloudflare
4,215channel4.comAkamai Bot ManagerAkamaiAmazon Web Services
4,824marksandspencer.comAkamai Bot ManagerAkamaiAzure Front Door / CDNContentfulNext.jsReactAkamai
5,938diy.comAmazon CloudFrontTailwind CSSTealium iQTrustArcUniversal Analytics (legacy)ZendeskBt Uk As British Telecommuni...
10,708equifax.comBootstrap 4.6.2CloudflareEnvoyFont AwesomeGoogle Cloud CDN / GFEGoogle Tag ManagerCloudflare
12,109virginmediao2.co.ukGoogle Cloud CDN / GFEGoogle Tag ManagerNext.jsReactSpeedCurve LUXStoryblokGoogle Cloud
14,318klm.comAkamai Bot ManagerAkamaiAngularGoogle Tag ManagernginxAkamai
20,040burberry.comGoogle Tag ManagerNew RelicNext.jsReactwebpackAkamai
23,411o2.co.ukAzure Front Door / CDNGoogle Cloud CDN / GFEGoogle Tag ManagerNext.jsReactSpeedCurve LUXMicrosoft Azure
25,297leica-camera.comCalendlyAmazon CloudFrontDrupalGoogle Tag ManagerOneTrustTailwind CSSAmazon Web Services
29,328airfrance.comAkamai Bot ManagerAkamaiAngularGoogle Tag ManagernginxAkamai
34,411confused.comCloudflareCloudflare Bot ManagementCloudflare Web AnalyticsjQuery 3.6.0SitecoreCloudflare
44,321game.co.ukAkamai Bot ManagerAkamaiAlgoliaBootstrapGoogle Tag ManagerjQueryAkamai
47,555eurocarparts.comAlgoliaAmazon CloudFrontContentfulEnvoyGoogle Tag ManagerNext.jsSecurityservices Vercara...
50,810evanscycles.comAkamai Bot ManagerAkamaiBootstrapGoogle Tag ManagerNext.jsOneTrustAkamai
51,275jcb.comAzure App ServiceCloudflareGoogle Tag ManagerOneTrustEpiserver As Optimizely Ab
58,623freshfields.comCloudflareGoogle Tag ManagerNext.jsReactTailwind CSSEpiserver As Optimizely Ab
74,367ajbell.co.ukBootstrapAmazon CloudFrontDrupalEnvoyFont AwesomeGoogle Tag ManagerAmazon Web Services
100,334furniturevillage.co.ukBazaarvoiceBootstrapCloudflareCloudflare Web AnalyticsGoogle Marketing Platform (DV360/CM360)Google Tag ManagerVercara Vercara Llc
226,241claridges.co.ukAzure Front Door / CDNNext.jsOneTrustReactTailwind CSSEpiserver As Optimizely Ab
297,913redrow.co.ukASP.NETBootstrapGoogle Tag ManagerImperva (Incapsula)OneTrustGoogle reCAPTCHAImperva
903,682carpetright.co.ukBootstrapCloudflareCloudflare Web AnalyticsCookiebot (Usercentrics)Font AwesomeGoogle Tag ManagerTwentyi 20I Limited
—fundingcircle.comAmazon CloudFrontGatsbyInMobi Choice (Quantcast)ReactAmazon S3IAB TCF v2 APIAmazon Web Services
—chainreactioncycles.comAkamai Bot ManagerAkamaiBootstrapGoogle Tag ManagerNext.jsOneTrustAkamai

Our crawler: 1,277 sites · UK brands · updated 13 Nov 2026 · Methodology

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