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A/B testing
Optimizely usage 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
- United Kingdom0.5%58
- Global0.7%452
- Netherlands0.3%26
- Italy0.2%13
- Spain0.3%12
- Japan0.1%13
- Latin America<0.1%17
Trend
Often used with
- Google Tag ManagerTag managers88%×2.1
- OneTrustCookie consent (CMP)41%×7.4
- BootstrapCSS frameworks41%
- ReactWeb frameworks36%×5.2
- Next.jsWeb frameworks33%×6.4
- CloudflareCDN33%
- jQueryJavaScript libraries33%
- Tailwind CSSCSS frameworks19%×1.9
- TrustpilotReviews19%×2.5
- ASP.NETWeb frameworks16%×2.2
Top sites using Optimizely All 58 sites
| Tranco | Site | Also uses | Hosting |
|---|---|---|---|
| 1,848 | featurespace.co.uk | Adobe Experience ManagerCloudflareCloudflare Bot ManagementEnvoyGoogle Tag ManagerNext.js | Amazon Web Services |
| 12,109 | virginmediao2.co.uk | Google Cloud CDN / GFEGoogle Tag ManagerNext.jsReactSpeedCurve LUXStoryblok | Google Cloud |
| 13,066 | rhs.org.uk | ASP.NETBootstrapCloudflareCloudflare Web AnalyticsGoogle Marketing Platform (DV360/CM360)Google Publisher Tag (Ad Manager) | Cloudflare |
| 19,068 | blueyonder.co.uk | Google Cloud CDN / GFEGoogle Tag ManagerjQuery 3.7.1Next.jsReactSpeedCurve LUX | Ntl Virgin Media Limited |
| 23,411 | o2.co.uk | Azure Front Door / CDNGoogle Cloud CDN / GFEGoogle Tag ManagerNext.jsReactSpeedCurve LUX | Microsoft Azure |
| 24,828 | ageuk.org.uk | ASP.NETAzure App ServiceCloudflareGoogle Tag ManagerModernizr | Episerver As Optimizely Ab |
| 44,321 | game.co.uk | Akamai Bot ManagerAkamaiAlgoliaBootstrapGoogle Tag ManagerjQuery | Akamai |
| 58,146 | studio.co.uk | Akamai Bot ManagerAkamaiBootstrapGoogle Tag ManagerNext.jsOneTrust | Akamai |
| 62,668 | ii.co.uk | Amazon CloudFrontGoogle Tag ManagerNext.jsOneTrustReact | Amazon Web Services |
| 63,273 | architectsjournal.co.uk | Adobe Experience Platform TagsGoogle AdSensecore-jsGoogle Marketing Platform (DV360/CM360)Font AwesomeGoogle Fonts | Amazon Web Services |
| 74,367 | ajbell.co.uk | BootstrapAmazon CloudFrontDrupalEnvoyFont AwesomeGoogle Tag Manager | Amazon Web Services |
| 76,481 | talktalk.co.uk | Angular 16.2.12ContentfulEnvoyfluctGoogle Tag ManagerjsDelivr | F5 F5 Networks Sarl |
| 100,334 | furniturevillage.co.uk | BazaarvoiceBootstrapCloudflareCloudflare Web AnalyticsGoogle Marketing Platform (DV360/CM360)Google Tag Manager | Vercara Vercara Llc |
| 112,790 | cscdns.uk | Azure Front Door / CDNBootstrapGoogle Tag ManagerjQuery 3.7.1OneTrustGoogle reCAPTCHA | Csc Corporation Service Co... |
| 117,312 | thejockeyclub.co.uk | Azure App ServiceBootstrapCloudflareGoogle Tag ManagerjsDelivr | Episerver As Optimizely Ab |
| 121,692 | purplebricks.co.uk | Azure Front Door / CDNContentfulCookiebot (Usercentrics)Google Tag ManagerNext.jsReact | Microsoft Azure |
| 124,783 | axa.co.uk | ASP.NETCloudflareCloudflare Web AnalyticsGoogle Tag ManagerjQuery 3.5.1Swiper | Episerver As Optimizely Ab |
| 134,827 | alpinetrek.co.uk | CloudflareCloudflare Bot ManagementGoogle Cloud CDN / GFEGoogle Tag ManagerNew RelicOneTrust | Cloudflare |
| 137,206 | tapi.co.uk | BootstrapCloudflareCookiebot (Usercentrics)Font AwesomeGoogle Tag Managerimpact.com | Cloudflare |
| 159,568 | ramsayhealth.co.uk | Adobe FontsASP.NETAzure App ServiceBootstrapCloudflareGoogle Tag Manager | Episerver As Optimizely Ab |
| 177,167 | bestwaywholesale.co.uk | cdnjsMicrosoft ClarityCivic Cookie ControlGoogle Tag ManagerHotjarjQuery 3.7.1 | Ukfast Ans Academy Limited |
| 179,164 | hiscox.co.uk | AcquiaBootstrapCloudflareCloudflare Bot ManagementCloudflare Web AnalyticsGoogle Marketing Platform (DV360/CM360) | Amazon Web Services |
| 180,633 | pokerstars.uk | Google FontsGoogle Tag ManagerOneTrustSentryUniversal Analytics (legacy) | Amazon Web Services |
| 182,514 | michaelpage.co.uk | AcquiaBootstrapCloudflareDrupalFont AwesomeGoogle Tag Manager | Amazon Web Services |
| 188,306 | barratthomes.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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