SearchWebCode

Technology directory

Explore technology footprints.

Queries, labelled counts and source examples for 101 web technologies.

September 2026 index · 131.2M indexed homepages

101 technologies

Labelled counts from stored homepage source in the quarterly index. A source reference does not confirm an active installation.

jQueryjquery.min.jsjQuery is a classic JavaScript library for DOM manipulation, still shipped by a huge number of sites (and WordPress themes).31,318,517estimatedFrameworks Google Fontsfonts.googleapis.comGoogle Fonts is the most widely used web-font service, loaded by an enormous share of sites.28,874,379estimatedFonts & UI WordPresswp-contentWordPress is the world's most popular content-management system, powering a large fraction of all websites, from blogs to enterprise sites.25,299,907estimatedCMS Font Awesomefont-awesomeFont Awesome is the most popular icon toolkit on the web.16,942,556estimatedFonts & UI Bootstrapbootstrap.min.cssBootstrap is the most popular CSS framework for responsive, component-based layouts.10,639,431estimatedFrameworks Google Analytics 4gtag/js?id=G-Google Analytics 4 (GA4) is Google's event-based web and app analytics platform, the default analytics tag on a large share of the web.9,897,422estimatedAnalytics Yoast SEOYoast SEO pluginYoast SEO is the most-installed WordPress SEO plugin; it manages titles, meta descriptions, XML sitemaps and the schema block on a large share of WordPress sites.8,074,237estimatedCMS Google Tag Managergoogletagmanager.com/gtm.jsGoogle Tag Manager (GTM) is a tag-management container that lets marketers deploy analytics, ads and other scripts without editing code. It is one of the most common tags on the web.7,576,499estimatedAnalytics Cloudflare/cdn-cgi/Cloudflare is a global CDN, security and performance provider fronting a large share of the web.7,083,965estimatedCDN & hosting Elementorwp-content/plugins/elementorElementor is the most widely used drag-and-drop page builder for WordPress, powering the front-end design of millions of WordPress sites.6,738,614estimatedCMS reCAPTCHArecaptcha/api.jsGoogle reCAPTCHA protects forms and logins from bots and spam.5,087,470estimatedConsent & security jsDelivrcdn.jsdelivr.netjsDelivr is a free public CDN for open-source JavaScript, CSS and npm/GitHub assets.4,839,019estimatedCDN & hosting Wixstatic.wixstatic.comWix is a hosted website builder aimed at small businesses and creatives.4,273,598estimatedCMS Universal Analyticsgoogle-analytics.com/analytics.jsUniversal Analytics (UA) is the previous generation of Google Analytics. Google sunset data collection in 2023, so its footprint now signals legacy or un-migrated sites.3,615,203estimatedAnalytics Angularng-version=Angular is Google's TypeScript front-end framework for large single-page applications.3,534,088candidatesFrameworks YouTube Embedyoutube.com/embedAn embedded YouTube player is the most common way sites include video.3,078,165estimatedMedia Facebook Pixelfbevents.jsThe Meta (Facebook) Pixel tracks conversions and builds audiences for Facebook and Instagram ad campaigns.2,638,998estimatedAdvertising WooCommercewp-content/plugins/woocommerceWooCommerce is the WordPress plugin that turns a WordPress site into a full online store, the most common self-hosted e-commerce platform.2,527,630estimatedE-commerce Sentrybrowser.sentry-cdn.comSentry captures uncaught JavaScript errors, stack traces and performance traces from real browsers and ties each one back to a release.2,524,217estimatedAnalytics Swiperswiper-bundleSwiper is a touch slider and carousel library, and the carousel bundled with Ionic, so it turns up on both marketing sites and mobile web apps.2,490,072estimatedFonts & UI Amazon CloudFrontcloudfront.netAmazon CloudFront is AWS's global CDN, commonly used to serve assets for sites hosted on AWS.2,451,380estimatedCDN & hosting Next.js/_next/staticNext.js is the leading React framework for server-rendered and statically-generated web apps.2,052,945estimatedFrameworks Shopifycdn.shopify.comShopify is a hosted e-commerce platform that powers millions of online stores.1,997,977estimatedCMS Google AdSenseadsbygoogle.jsGoogle AdSense lets publishers monetize their sites with Google display ads.1,951,513estimatedAdvertising Adobe Fontsuse.typekit.netAdobe Fonts (formerly Typekit) is Adobe's subscription web-font service.1,730,214estimatedFonts & UI Reactreact-domReact is the most widely used JavaScript UI library, underpinning countless single-page apps.1,634,949estimatedFrameworks unpkgunpkg.comunpkg is a fast public CDN that serves any package from the npm registry.1,571,345estimatedCDN & hosting Heapheap.loadHeap is an autocapture product-analytics tool that records events without manual instrumentation.1,571,212candidatesAnalytics Matomo_paqMatomo (formerly Piwik) is an open-source, self-hostable web-analytics platform.1,151,359estimatedAnalytics Vimeoplayer.vimeo.comVimeo is a video-hosting platform favored for higher-quality, ad-free embeds.1,011,936estimatedMedia DoubleClickdoubleclick.netDoubleClick (Google Marketing Platform / Campaign Manager) powers ad serving and remarketing across the web.884,938estimatedAdvertising Webflowdata-wf-pageWebflow is a visual website builder popular with designers and agencies.640,450estimatedCMS Microsoft Clarityclarity.ms/tag/Microsoft Clarity is a free heatmap and session-recording tool from Microsoft.620,346estimatedAnalytics Squarespacestatic1.squarespace.comSquarespace is a hosted website builder known for design-forward templates.606,757estimatedCMS Nuxt/_nuxt/Nuxt is the leading Vue framework for server-rendered and static apps.594,489estimatedFrameworks Drupalsites/default/filesDrupal is an open-source CMS favored for complex, high-security and government/enterprise sites.476,254estimatedCMS Vue.jsdata-server-renderedVue.js is a progressive JavaScript framework known for its approachable single-file components.471,553estimatedFrameworks GSAPgsap.min.jsGSAP, the GreenSock Animation Platform, is a JavaScript animation library used for scroll-driven effects, timelines and complex UI motion where CSS transitions fall short.404,643estimatedFonts & UI Klaviyostatic.klaviyo.comKlaviyo is an email and SMS marketing platform dominant among Shopify and e-commerce brands.397,312estimatedMarketing & CRM Hotjarstatic.hotjar.com/c/hotjar-Hotjar provides heatmaps, session recordings and on-site surveys to show how visitors interact with a page.388,690estimatedAnalytics Mailchimpchimpstatic.comMailchimp is a popular email-marketing and audience platform.371,922estimatedMarketing & CRM Joomla/media/jui/Joomla is an open-source CMS that sits between WordPress and Drupal in flexibility.368,634estimatedCMS Cookiebotconsent.cookiebot.comCookiebot is a widely-used cookie-consent management platform.335,903estimatedConsent & security Astroastro-islandAstro is a content-focused web framework that ships zero JavaScript by default and hydrates interactive islands only where needed, so most Astro pages are static HTML.333,926estimatedFrameworks Stripejs.stripe.com/v3Stripe is the leading developer-first payments platform, used for checkout, subscriptions and billing across the web.327,739estimatedPayments Tawk.toembed.tawk.toTawk.to is a free live-chat widget used by a very large number of small sites.326,276estimatedChat & support Alpine.jsx-data=Alpine.js is a small framework for adding reactive behaviour directly in HTML markup.320,055estimatedFrameworks Tailwind CSScdn.tailwindcss.comTailwind CSS is a utility-first CSS framework: instead of hand-written stylesheets, layouts are composed from atomic classes like flex, pt-4 and text-center directly in the markup.312,806estimatedFonts & UI Cloudinaryres.cloudinary.comCloudinary is a media CDN that stores, transforms and delivers images and video; transformation parameters ride in the URL so assets are resized and reformatted on the fly.298,680estimatedCDN & hosting Cloudflare Turnstilechallenges.cloudflare.com/turnstileTurnstile is Cloudflare's CAPTCHA alternative: it runs non-interactive browser challenges to block bots on forms and logins without puzzles or a reCAPTCHA-style checkbox.205,952estimatedConsent & security HubSpotjs.hs-scripts.comHubSpot is an all-in-one CRM, marketing, and sales platform common on B2B and SaaS sites.203,375estimatedMarketing & CRM LiveChatcdn.livechatinc.comLiveChat is a commercial live-chat and help-desk platform.191,375estimatedChat & support TikTok Pixelanalytics.tiktok.com/i18n/pixelThe TikTok Pixel measures conversions and builds audiences for TikTok ad campaigns.160,488estimatedAdvertising LinkedIn Insight Tagsnap.licdn.com/li.lms-analyticsThe LinkedIn Insight Tag enables conversion tracking and retargeting for LinkedIn ads, common on B2B sites.159,749estimatedAdvertising OneTrustcdn.cookielaw.orgOneTrust is the leading enterprise cookie-consent and privacy-management platform.146,604estimatedConsent & security Squareweb.squarecdn.comSquare provides payments and commerce tools, including a web payments SDK.142,523estimatedPayments Framerdata-framer-nameFramer is a no-code website builder that grew out of a design tool; sites are designed on a canvas and published to Framer's hosting, common for startup landing pages and portfolios.133,931estimatedCMS Google Adsgoogleadservices.com/pagead/conversionGoogle Ads conversion tracking measures ad-driven actions on advertiser websites.127,918estimatedAdvertising Trustpilotwidget.trustpilot.comTrustpilot is a review platform; merchants embed TrustBox widgets to show their star rating and recent reviews as social proof on product and checkout pages.127,331estimatedMarketing & CRM PayPalpaypal.com/sdk/jsPayPal is a widely-used online payment and checkout provider.127,279estimatedPayments Lottielottie-playerLottie renders After Effects animations as small, scalable JSON in the browser, most often through the LottieFiles lottie-player web component.114,604estimatedFonts & UI Akamaiakamaized.netAkamai is one of the oldest and largest enterprise CDNs.105,215estimatedCDN & hosting Crispclient.crisp.chatCrisp is an affordable live-chat and customer-messaging widget popular with startups.100,901estimatedChat & support hCaptchahcaptcha.com/1/api.jshCaptcha is a privacy-oriented CAPTCHA alternative to reCAPTCHA.99,867estimatedConsent & security Wistiafast.wistia.comWistia is a business-focused video-hosting platform with marketing analytics.98,810estimatedMedia Vercel.vercel.appVercel is a front-end cloud platform, the company behind Next.js, popular for hosting modern web apps.98,623estimatedCDN & hosting Netlify.netlify.appNetlify is a platform for building and hosting modern front-end sites and serverless functions.82,475estimatedCDN & hosting Gatsby___gatsbyGatsby is a React-based static-site generator.78,902estimatedFrameworks Zendeskstatic.zdassets.comZendesk is a customer-support suite including the Web Widget and messaging.77,876estimatedChat & support Braintreebraintreegateway.comBraintree (a PayPal company) is a payments gateway for cards, PayPal and wallets.73,703estimatedPayments Taboolacdn.taboola.com/libtrc/Taboola is a content-discovery / native-advertising network shown as 'recommended' widgets on publisher sites.73,136estimatedAdvertising Pinterest TagpintrkThe Pinterest Tag tracks conversions and builds audiences for Pinterest ads, common on e-commerce and lifestyle sites.61,337estimatedAdvertising Magentodata-mage-initMagento (Adobe Commerce) is an open-source e-commerce platform used by mid-market and enterprise retailers.60,436estimatedE-commerce Calendlyassets.calendly.comCalendly is a scheduling tool that embeds a booking widget so visitors self-serve a meeting slot; it is a common last step in B2B demo and sales funnels.58,921estimatedMarketing & CRM PostHogposthog.initPostHog is an open-source product-analytics platform that bundles event capture, session replay, feature flags and experiments behind a single JavaScript SDK.58,155estimatedAnalytics VWOdev.visualwebsiteoptimizer.comVWO (Visual Website Optimizer) is an A/B testing, heatmap and conversion-optimization suite aimed at marketing and growth teams.55,472estimatedAnalytics Intercomwidget.intercom.ioIntercom is a customer-messaging platform (live chat, product tours, support) common on SaaS sites.52,930estimatedChat & support X (Twitter) Pixelstatic.ads-twitter.com/uwt.jsThe X (Twitter) conversion pixel tracks ad-driven actions for campaigns on X.46,032estimatedAdvertising Fastly.fastly.Fastly is an edge-cloud CDN used by many high-traffic sites and apps.44,318estimatedCDN & hosting Plausible Analyticsplausible.io/js/script.jsPlausible is a lightweight, privacy-focused, cookie-free analytics alternative to Google Analytics.40,924estimatedAnalytics Criteostatic.criteo.net/js/ld/Criteo is a performance-advertising and retargeting platform popular with retailers.40,697estimatedAdvertising Segmentcdn.segment.com/analytics.js/v1/Segment (Twilio Segment) is a customer-data platform that collects events once and fans them out to downstream analytics and marketing tools.40,587estimatedAnalytics Optimizelycdn.optimizely.comOptimizely runs A/B tests, feature flags and personalization. Its snippet loads synchronously in the head so variations apply before first paint and avoid a content flash.39,283estimatedAnalytics BigCommercecdn11.bigcommerce.comBigCommerce is a hosted e-commerce platform aimed at growing and mid-market merchants.37,156estimatedE-commerce Ghostpublic/cards.min.jsGhost is a modern, publication-focused open-source CMS and newsletter platform.27,723estimatedCMS Typeformembed.typeform.comTypeform builds conversational, one-question-at-a-time forms, surveys and quizzes that sites embed for lead capture and onboarding.25,337estimatedMarketing & CRM ActiveCampaignactivehosted.comActiveCampaign is a marketing-automation, email and CRM platform for SMBs.24,262estimatedMarketing & CRM Pardotpi.pardot.comPardot, now Salesforce Marketing Cloud Account Engagement, is a B2B marketing-automation tool for lead scoring, nurture emails and form tracking tied to Salesforce CRM.22,894estimatedMarketing & CRM AlgoliaalgoliasearchAlgolia is a hosted search API; its InstantSearch, Autocomplete and DocSearch front-end libraries query an application's index straight from the browser, which is why its client code lands in page source.21,332estimatedFrameworks Mixpanelmixpanel.initMixpanel is a product-analytics tool focused on event tracking, funnels and retention.20,777estimatedAnalytics Klarnajs.klarna.comKlarna offers buy-now-pay-later and installment checkout options, common on retail sites.17,432estimatedPayments Driftjs.driftt.comDrift is a conversational-marketing and sales-chat platform for B2B.17,061estimatedChat & support FullStoryfullstory.com/s/fs.jsFullStory captures full session replays and digital-experience analytics.14,536estimatedAnalytics Afterpaystatic.afterpay.comAfterpay (Clearpay) offers buy-now-pay-later installment payments at checkout.14,053estimatedPayments Amplitudecdn.amplitude.com/libs/Amplitude is a product-analytics platform for behavioural cohorts, funnels and experimentation.12,460estimatedAnalytics Marketomunchkin.marketo.netMarketo (Adobe) is an enterprise marketing-automation platform used by large B2B teams.12,259estimatedMarketing & CRM htmxhtmx.orghtmx lets HTML drive AJAX, WebSocket and server-sent-event requests through attributes like hx-get and hx-swap, so pages update server-rendered fragments without a client-side framework.6,016estimatedFrameworks Outbrainwidgets.outbrain.com/outbrain.jsOutbrain is a native-advertising and content-recommendation network for publishers.4,501estimatedAdvertising Paddlecdn.paddle.comPaddle is a merchant of record for software and SaaS: it runs checkout, sales tax and subscriptions as the seller of record, so the vendor never touches card data or tax filing.4,278estimatedPayments Snipcartcdn.snipcart.comSnipcart is a developer-friendly shopping cart you add to any static or custom site.3,266estimatedE-commerce Sveltesvelte-announcerSvelte is a compiler-based UI framework; SvelteKit is its full-stack framework.517estimatedFrameworks

Browse every technology by category

Each technology links to dated source examples, count details and a runnable query. The search box above filters this directory.

Analytics

Analytics and tracking tags are among the most-shipped code on the web, nearly every commercial site loads at least one. Each leaves a distinctive fingerprint in page source, so you can find every site running a given analytics tool by searching for it.

Advertising & Pixels

Ad networks and conversion pixels drop tracking scripts that are easy to fingerprint in source. Reverse-search any ad platform to find the sites that run it, or pivot on a shared publisher ID.

CMS & Site Builders

Content-management systems and site builders stamp recognizable paths and markers into every page they render, wp-content, static.wixstatic.com, and the like, making them straightforward to detect across the whole web.

JavaScript Frameworks

Front-end frameworks and libraries ship telltale runtime markers, react-dom, __NEXT_DATA__, ng-version, that reveal which stack a site is built on. Search for the marker to find every site using the framework.

E-commerce Platforms

E-commerce platforms load platform-specific CDNs and scripts (cdn.shopify.com, WooCommerce plugin paths) that make it easy to enumerate every store on a given platform and pair it with the other tools each store runs.

Payment Providers

Payment SDKs load from provider-controlled domains (js.stripe.com, paypal.com/sdk/js), so their footprints are precise. Find every site accepting a given payment method.

CDN & Hosting

CDNs and hosting platforms leave asset-domain and header fingerprints (cloudfront.net, .vercel.app, cdn.jsdelivr.net) that indicate where a site is served from.

Fonts & UI

Font services and UI toolkits are loaded from shared CDNs (fonts.googleapis.com, use.typekit.net, Font Awesome), giving them a clean, high-volume footprint across the web.

Marketing & CRM

Marketing-automation and CRM tools inject tracking and form scripts (js.hs-scripts.com, static.klaviyo.com) that reveal a site's go-to-market stack, a strong signal for technographic targeting.

Chat & Support

Live-chat and support widgets load from vendor CDNs (widget.intercom.io, client.crisp.chat) and are simple to detect, making it easy to find every site using a given support tool.

Consent & Security

CAPTCHA, consent-management and security tools ship distinctive loaders (recaptcha/api.js, cdn.cookielaw.org), useful for compliance research and for finding sites protected by a given service.

Media & Video

Embedded video and media players (youtube.com/embed, player.vimeo.com, fast.wistia.com) leave obvious iframe and script fingerprints in page source.