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JavaScript libraries

lazysizes market share on brand websites

lazysizes runs on 2.8% of brand websites in our sample (36 of 1,277). Market share by country, top sites using it and technologies it is paired with.

2.8%
Share in UK brands
36 / 1,277
0
sites in Tranco top 1K
2 in top 10K
#66,931
median Tranco rank
Tranco
16
frequent companions
Google Tag Manager

By market

  1. UK brands2.8%36
  2. United Kingdom2.2%250
  3. Global1.8%1,240

Trend

Often used with

  1. Google Tag ManagerTag managers81%
  2. jQueryJavaScript libraries67%×2.3
  3. OneTrustCookie consent (CMP)50%×1.9
  4. CloudflareCDN42%
  5. BootstrapCSS frameworks42%
  6. Font AwesomeWeb fonts31%×2.9
  7. WordPressCMS28%×1.6
  8. Google FontsWeb fonts25%
  9. Google reCAPTCHACAPTCHA25%×1.8
  10. cdnjsCDN25%×2.5

Top sites using lazysizes All 36 sites

TrancoSiteAlso usesHosting
3,818routledge.comBootstrapCloudflareCloudflare Bot ManagementCloudflare Web AnalyticsFont AwesomeGoogle FontsCloudflare
5,516swarovski.comGoogle Tag ManagerJavaSAP Commerce CloudUsercentricsAkamai
35,063madametussauds.comAzure Front Door / CDNGoogle Tag ManagerOneTrustUmbracoVWOMicrosoft Azure
43,279bmstores.co.ukAlgoliaBootstrapAmazon CloudFrontFont AwesomeGoogle Tag ManagerjQuery 3.7.1Amazon Web Services
45,554specsavers.co.ukCloudflareCloudflare Bot ManagementDrupalFont AwesomeGoogle Tag ManagerjQuery 3.7.1Amazon Web Services
64,858londoneye.comAzure Front Door / CDNGoogle FontsGoogle Tag ManagerOneTrustOwl CarouselUmbracoMicrosoft Azure
69,005bacardi.comCloudflareCloudflare Bot Managementcore-jsGoogle Tag ManagerGutenberg blocksjQueryCloudflare
81,433centrica.comBootstrapCloudflareGoogle Tag ManagerMailchimpOneTrustVimeoCloudflare
162,771legoland.co.ukASP.NETAzure Front Door / CDNGoogle Tag ManagerOneTrustOwl CarouselUmbracoMicrosoft Azure
199,739jomalone.co.ukAfterpay / ClearpayAkamai Bot ManagerAkamaiDrupaljQuery 3.5jQuery MigrateAkamai
315,386dauntbooks.co.ukBootstrap 4.1.3cdnjsCloudflareCloudflare Bot ManagementCloudflare Web AnalyticsCookieYesCloudflare
389,578compass-group.co.ukGoogle FontsGoogle Tag ManagerOVHcloud
—bombaysapphire.comCloudflareCloudflare Bot Managementcore-jsGoogle Marketing Platform (DV360/CM360)Google Tag ManagerGutenberg blocksCloudflare
—thorpepark.comAdobe FontsASP.NETAzure Front Door / CDNGoogle Tag ManagerOneTrustOwl CarouselMicrosoft Azure
—londoncoliseum.orgCloudflareCloudflare Web AnalyticsCookiebot (Usercentrics)core-jsGoogle Tag ManagerjQueryCloudflare
—harewood.orgcore-jsGoogle Tag ManagerjQueryjQuery MigratejsDelivrLiteSpeedKrystal
—hi-tec.comCloudflarehCaptchaKlaviyoGoogle reCAPTCHASentryShopifyCloudflare
—scotmid.coopAdobe FontsCookieYescore-jsGoogle Tag ManagerjQueryjQuery MigrateIONOS
—marsbar.co.ukAcquiacdnjsDrupal 11Google Tag ManagerjQueryjsDelivrAmazon Web Services
—ercol.comAlgoliaApache HTTP ServerBootstrapAmazon CloudFrontConcrete CMSCookiebot (Usercentrics)Upcloud Upcloud Ltd
—snickers.comAcquiaBootstrapcdnjsDrupal 11Google Tag ManagerjQueryAmazon Web Services
—picturehouses.comBootstrapcdnjsCloudflareCloudflare Bot ManagementFont AwesomeGoogle FontsCloudflare
—capitolrecords.comEnvoyImperva (Incapsula)jQueryWordPressImperva
—dewars.comCloudflareCloudflare Bot Managementcore-jsGoogle Tag ManagerGutenberg blocksjQueryCloudflare
—powerplate.comBootstrap 4.6.0cdnjsMicrosoft ClarityCloudflareConvertFont AwesomeCloudflare

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

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