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Blocks an AI crawler 12%Blocks GPTBot 11%ads.txt 22%Cookie consent banner 20%Ad pixels 23%llms.txt 15%HTTPS homepage 99%DMARC record 65%Blocks an AI crawler 12%Blocks GPTBot 11%ads.txt 22%Cookie consent banner 20%Ad pixels 23%llms.txt 15%HTTPS homepage 99%DMARC record 65%
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A/B testing

Optimizely usage worldwide

Optimizely runs on 0.7% of websites worldwide in our sample (452 of 68,167). Market share by country, top sites using it and technologies it is paired with.

0.7%
Share in Global
452 / 68,167
11
sites in Tranco top 1K
76 in top 10K
#32,275
median Tranco rank
Tranco
16
frequent companions
Google Tag Manager

By market

  1. Global0.7%452
  2. United Kingdom0.5%58
  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 managers77%×2
  2. CloudflareCDN40%
  3. OneTrustCookie consent (CMP)37%×5.9
  4. jQueryJavaScript libraries31%
  5. BootstrapCSS frameworks25%
  6. ReactWeb frameworks24%×2
  7. Google FontsWeb fonts23%
  8. Next.jsWeb frameworks21%×2.1
  9. WordPressCMS18%
  10. Cloudflare Bot ManagementSecurity & bot protection17%

Top sites using Optimizely All 452 sites

TrancoSiteAlso usesHosting
59zoom.usCloudflareCloudflare Bot ManagementGoogle Tag ManagerOneTrustSwiperCloudflare
117bit.lyGoogle Cloud CDN / GFEGoogle Tag ManagernginxOneTrustUserWayWordPressGoogle Cloud
255salesforce.comAkamai Bot ManagerAkamaiContentfulGoogle FontsGoogle Tag ManagerOneTrustAkamai
347unisys.comASP.NETAzure App ServiceBootstrapCloudflareGoogle FontsGoogle Tag ManagerEpiserver As Optimizely Ab
391gitlab.comBootstrapCloudflareMarketoNuxtOneTrustVue.jsCloudflare
524klaviyo.comAmplitudeAstroCloudflareGoogle Tag ManagerHubSpotKlaviyoAmazon Web Services
625optimizely.comGoogle Tag ManagerNext.jsReactTailwind CSSVercelAmazon Web Services
772mailchimp.comAdobe Experience ManagerAkamai Bot ManagerAkamaiBugsnagOracle EloquaEnvoyAkamai
838mixpanel.comFramerGoogle Cloud CDN / GFEGoogle Tag ManagerMixpanelnginxSentryGoogle Cloud
889zoom.comCloudflareCloudflare Bot ManagementGoogle Tag ManagerOneTrustSwiperAmazon Web Services
985mailchi.mpAdobe Experience ManagerAkamai Bot ManagerAkamaiBugsnagOracle EloquaEnvoyAkamai
1,096typeform.comAmplitudeCloudflareAmazon CloudFrontGoogle FontsGSAPGoogle Tag ManagerAmazon Web Services
1,241screenconnect.comAdobe FontsASP.NETAzure App ServiceBootstrap 5.3.2CloudflareCloudflare Bot ManagementAmazon Web Services
1,766eepurl.comAdobe Experience ManagerAkamai Bot ManagerAkamaiBugsnagOracle EloquaEnvoyAkamai
1,848featurespace.co.ukAdobe Experience ManagerCloudflareCloudflare Bot ManagementEnvoyGoogle Tag ManagerNext.jsAmazon Web Services
2,005sky.comAdobe Experience Platform TagsAkamai Bot ManagerAkamaiGoogle Cloud CDN / GFEGoogle Tag ManagerNext.jsBskyb Broadband As Sky Uk Li...
2,011clevelandclinic.orgAdobe Experience Platform TagsCloudflareCloudflare Web AnalyticsDynamics 365 Customer InsightsGoogle Tag ManagerNext.jsCloudflare
2,077ninjarmm.comMicrosoft ClarityCloudflarecore-jsGoogle Tag Managerimpact.comjQueryCloudflare
2,086evergage.comAkamai Bot ManagerAkamaiContentfulGoogle FontsGoogle Tag ManagerOneTrustAmazon Web Services
2,124asu.eduAcquiaBootstrapCloudflareCloudflare Web AnalyticsDrupal 10Font AwesomeCloudflare
2,219elastic.coGoogle Tag ManagerNext.jsnginxReactTailwind CSSVarnishGoogle Cloud
2,313asana.comDatadog RUMGoogle Tag ManagerJotformNetlifyNext.jsOneTrustAmazon Web Services
2,428inmotionhosting.comBootstrap 3.0.3CloudflareCloudflare Web Analyticscore-jsDiviEqualWebCloudflare
2,666parallels.comBootstrapCloudflareDjangoFont AwesomejQuery 3.6.0MarketoCloudflare
2,673wasabisys.comMUINetlifyNext.jsOneTrustReactSwiperBluearchive Zone 1 Wasabi...

Our crawler: 68,167 sites · Global · updated Nov 13, 2026 · Methodology

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