Technology history for duolingo.com

2026 4 added · 3 dropped

• dropped Google Pay Jun 2026 · Payment processors
• added Google Pay Apr 2026 · Payment processors
• added Hammer.js Apr 2026 · JavaScript libraries
• added Splide Apr 2026 · JavaScript libraries
• added Vite Apr 2026 · Miscellaneous
• dropped Vite Feb 2026 · Miscellaneous
• dropped Hammer.js Jan 2026 · JavaScript libraries

2025 8 added · 16 dropped · 1 switched

• dropped Animate.css Nov 2025 · UI frameworks
• dropped Pandectes Nov 2025 · Shopify apps
• dropped Reddit Ads Nov 2025 · Advertising
• dropped Splide Nov 2025 · JavaScript libraries
• dropped Emotion Oct 2025 · JavaScript frameworks
• added Klaviyo Oct 2025 · Marketing automation
• added LazySizes Oct 2025 · JavaScript libraries
• added Slick Oct 2025 · JavaScript libraries
• dropped Genesis blocks Sep 2025 · WordPress plugins
• dropped jQuery Migrate Sep 2025 · JavaScript libraries
• dropped MySQL Sep 2025 · Databases
• dropped Twenty Twenty-Four Sep 2025 · WordPress themes
• dropped WordPress Sep 2025 · CMS
• dropped WordPress Site Editor Sep 2025 · Page builders
• dropped WP Engine Sep 2025 · PaaS
• dropped Yoast SEO Sep 2025 · WordPress plugins
• dropped Bunny Aug 2025 · CDN
• added Tinybird Aug 2025 · Analytics
• added Emotion Jul 2025 · JavaScript frameworks
• dropped Google Hosted Libraries Jul 2025 · CDN
• added Pandectes Apr 2025 · Shopify apps
• dropped Boomerang Mar 2025 · JavaScript libraries
• added Bunny Mar 2025 · CDN
• added Mailgun Feb 2025 · Email
• switched Genesis theme → Twenty Twenty-Four Jan 2025 · WordPress themes

2024 6 added · 5 dropped

• added Genesis blocks Dec 2024 · WordPress plugins
• dropped TikTok Pixel Dec 2024 · Analytics
• dropped Venmo Dec 2024 · Payment processors
• added React Router Nov 2024 · JavaScript frameworks
• added Glide.js Oct 2024 · JavaScript libraries
• added Swiper Oct 2024 · JavaScript libraries
• dropped New Relic Sep 2024 · RUM
• dropped Polyfill Aug 2024 · JavaScript libraries
• added Animate.css Jul 2024 · UI frameworks
• dropped Animate.css Jun 2024 · UI frameworks
• added HubSpot Feb 2024 · Marketing automation

2023 60 added · 16 dropped · 1 switched

• added Microsoft Advertising Dec 2023 · Advertising
• added Microsoft Clarity Dec 2023 · Analytics
• added TikTok Pixel Dec 2023 · Analytics
• added Cloudflare Bot Management Nov 2023 · Security
• added Priority Hints Nov 2023 · Performance
• dropped Choices Oct 2023 · JavaScript libraries
• added Reddit Ads Oct 2023 · Advertising
• added Animate.css Sep 2023 · UI frameworks
• dropped Cloudflare Bot Management Sep 2023 · Security
• added EasyGift Sep 2023 · Shopify apps
• added Quora Pixel Sep 2023 · Analytics
• dropped Cart Functionality Aug 2023 · Ecommerce
• dropped Flickity Aug 2023 · JavaScript libraries
• dropped Google Pay Aug 2023 · Payment processors
• dropped Klaviyo Aug 2023 · Marketing automation
• dropped LazySizes Aug 2023 · JavaScript libraries
• dropped Chart.js Jul 2023 · JavaScript graphics
• dropped Dropzone Jul 2023 · JavaScript libraries
• added Matomo Analytics Jul 2023 · Analytics
• added Matomo Tag Manager Jul 2023 · Tag managers
• dropped Mustache Jul 2023 · JavaScript frameworks
• added PayPal Jul 2023 · Payment processors
• dropped Priority Hints Jul 2023 · Performance
• dropped SoundManager Jul 2023 · JavaScript libraries
• added Splide Jul 2023 · JavaScript libraries
• dropped SWFObject Jul 2023 · Miscellaneous
• added Venmo Jul 2023 · Payment processors
• added Ahrefs Jun 2023 · Analytics
• added Acquia Cloud Platform May 2023 · PaaS
• added Acquia Cloud Site Factory May 2023 · Hosting
• added Adobe Analytics May 2023 · Analytics
• added Adobe Experience Platform Identity Service May 2023 · Customer data platform
• added Adobe Experience Platform Launch May 2023 · Tag managers
• added Akamai May 2023 · CDN
• added Apple Pay May 2023 · Payment processors
• added Atlassian Statuspage May 2023 · Issue trackers
• added Babel May 2023 · Miscellaneous
• added Boomerang May 2023 · JavaScript libraries
• added Cart Functionality May 2023 · Ecommerce
• added cdnjs May 2023 · CDN
• added Cloudflare Bot Management May 2023 · Security
• added DataTables May 2023 · JavaScript libraries
• added Drupal May 2023 · CMS
• added Drupal Multisite May 2023 · Hosting
• added Flickity May 2023 · JavaScript libraries
• added Google Code Prettify May 2023 · Miscellaneous
• added Google Pay May 2023 · Payment processors
• added HSTS May 2023 · Security
• added HTTP/3 May 2023 · Miscellaneous
• added jsDelivr May 2023 · CDN
• added Klaviyo May 2023 · Marketing automation
• dropped Laravel May 2023 · Web frameworks
• added LazySizes May 2023 · JavaScript libraries
• added Lightbox May 2023 · JavaScript libraries
• added LottieFiles May 2023 · Miscellaneous
• added Moment.js May 2023 · JavaScript libraries
• added New Relic May 2023 · RUM
• added Next.js May 2023 · JavaScript frameworks
• added OpenResty May 2023 · Web servers
• switched C → PHP May 2023 · Programming languages
• added Polyfill May 2023 · JavaScript libraries
• added Popper May 2023 · Miscellaneous
• added Priority Hints May 2023 · Performance
• added RSS May 2023 · Miscellaneous
• added Select2 May 2023 · JavaScript libraries
• added Sentry May 2023 · Issue trackers
• added Shop Pay May 2023 · Payment processors
• added Shopify May 2023 · Ecommerce
• added styled-components May 2023 · JavaScript frameworks
• added Twitter typeahead.js May 2023 · JavaScript libraries
• added Unpkg May 2023 · CDN
• dropped Adobe Audience Manager Apr 2023 · Segmentation
• dropped Akamai Web Application Protector Mar 2023 · Security
• added C Feb 2023 · Programming languages
• added jsDelivr Feb 2023 · CDN
• added Priority Hints Feb 2023 · Performance
• added Apple iCloud Mail Jan 2023 · Webmail

2022 61 added · 9 dropped · 4 switched

• added Akamai Web Application Protector Dec 2022 · Security
• dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
• dropped Java Dec 2022 · Programming languages
• switched Flask → Laravel Dec 2022 · Web frameworks
• dropped Python Dec 2022 · Programming languages
• added RSS Dec 2022 · Miscellaneous
• added Salesforce Marketing Cloud Account Engagement Dec 2022 · Marketing automation
• added Adjust Oct 2022 · Analytics
• added Flickity Sep 2022 · JavaScript libraries
• added HSTS Sep 2022 · Security
• added HTTP/3 Sep 2022 · Miscellaneous
• added Open Graph Sep 2022 · Miscellaneous
• dropped Percona Sep 2022 · Databases
• added Acquia Cloud Platform Aug 2022 · PaaS
• added Acquia Cloud Site Factory Aug 2022 · Hosting
• added Adobe Analytics Aug 2022 · Analytics
• added Adobe Audience Manager Aug 2022 · Segmentation
• added Adobe Experience Platform Identity Service Aug 2022 · Customer data platform
• added Adobe Experience Platform Launch Aug 2022 · Tag managers
• added Akamai Aug 2022 · CDN
• added Amazon SES Aug 2022 · Email
• added Backbone.js Aug 2022 · JavaScript frameworks
• added cdnjs Aug 2022 · CDN
• added Chart.js Aug 2022 · JavaScript graphics
• added Choices Aug 2022 · JavaScript libraries
• added Cloudflare Bot Management Aug 2022 · Security
• added Cloudflare Network Error Logging Aug 2022 · Issue trackers
• added DataTables Aug 2022 · JavaScript libraries
• added Dropzone Aug 2022 · JavaScript libraries
• added Drupal Aug 2022 · CMS
• added Drupal Multisite Aug 2022 · Hosting
• added Flask Aug 2022 · Web frameworks
• added Google Hosted Libraries Aug 2022 · CDN
• added Google Workspace Aug 2022 · Webmail
• added Java Aug 2022 · Programming languages
• added jQuery CDN Aug 2022 · CDN
• added jQuery UI Aug 2022 · JavaScript libraries
• added Lightbox Aug 2022 · JavaScript libraries
• added Linkedin Insight Tag Aug 2022 · Analytics
• added Lodash Aug 2022 · JavaScript libraries
• added Moment.js Aug 2022 · JavaScript libraries
• added Mustache Aug 2022 · JavaScript frameworks
• switched Pingdom → New Relic Aug 2022 · RUM
• switched Apache HTTP Server → OpenResty Aug 2022 · Web servers
• added Pardot Aug 2022 · Marketing automation
• added PHP Aug 2022 · Programming languages
• added Popper Aug 2022 · Miscellaneous
• added PWA Aug 2022 · Miscellaneous
• added Python Aug 2022 · Programming languages
• added Salesforce Aug 2022 · CRM
• added Sentry Aug 2022 · Issue trackers
• added SoundManager Aug 2022 · JavaScript libraries
• switched Adyen → Stripe Aug 2022 · Payment processors
• added SWFObject Aug 2022 · Miscellaneous
• added Taboola Aug 2022 · Advertising
• added Underscore.js Aug 2022 · JavaScript libraries
• added Unpkg Aug 2022 · CDN
• added YouTube Aug 2022 · Video players
• added Zendesk Aug 2022 · Documentation
• added Dropzone Jul 2022 · JavaScript libraries
• dropped Tailwind CSS Jun 2022 · UI frameworks
• added Pingdom May 2022 · RUM
• added Adobe Audience Manager Apr 2022 · Segmentation
• added Drupal Multisite Apr 2022 · Hosting
• dropped Google Analytics Enhanced eCommerce Apr 2022 · Analytics
• added Popper Apr 2022 · Miscellaneous
• added Tailwind CSS Apr 2022 · UI frameworks
• dropped FancyBox Mar 2022 · JavaScript libraries
• dropped Google Plus Mar 2022 · Widgets
• added Cloudflare Network Error Logging Feb 2022 · Issue trackers
• added Google Hosted Libraries Feb 2022 · CDN
• added jQuery CDN Feb 2022 · CDN
• dropped Pingdom Feb 2022 · RUM
• added Sentry Feb 2022 · Issue trackers

2021 31 added · 7 dropped · 1 switched

• added Choices Dec 2021 · Miscellaneous
• added Pingdom Dec 2021 · RUM
• added Acquia Cloud Platform Nov 2021 · PaaS
• added Acquia Cloud Site Factory Nov 2021 · Hosting
• added Apache HTTP Server Nov 2021 · Web servers
• added cdnjs Nov 2021 · CDN
• added Percona Nov 2021 · Databases
• switched PerimeterX → Cloudflare Bot Management Oct 2021 · Security
• added Adalyser Sep 2021 · Advertising
• added core-js Sep 2021 · JavaScript libraries
• dropped PDF.js Sep 2021 · Miscellaneous
• added Wheelio Sep 2021 · Widgets
• added Amazon ALB Aug 2021 · Load balancers
• added Linkedin Insight Tag Aug 2021 · Analytics
• added OpenResty Aug 2021 · Web servers
• added Chart.js Jul 2021 · JavaScript graphics
• added FancyBox Jul 2021 · JavaScript libraries
• added Google Ads Conversion Tracking Jul 2021 · Analytics
• added Google Remarketing Tag Jul 2021 · Retargeting
• added Howler.js Jul 2021 · JavaScript libraries
• added Lodash Jul 2021 · JavaScript libraries
• added Moment.js Jul 2021 · JavaScript libraries
• added Mustache Jul 2021 · JavaScript frameworks
• added PerimeterX Jul 2021 · Security
• added SoundManager Jul 2021 · JavaScript libraries
• added Unpkg Jul 2021 · CDN
• added Facebook Login Jun 2021 · Social logins
• added Facebook Pixel Jun 2021 · Analytics
• added PDF.js Jun 2021 · Miscellaneous
• added Taboola Jun 2021 · Advertising
• added OneTrust May 2021 · Cookie compliance
• added Zendesk May 2021 · CMS
• dropped Chart.js Mar 2021 · JavaScript graphics
• dropped FancyBox Mar 2021 · JavaScript libraries
• dropped Moment.js Mar 2021 · JavaScript libraries
• dropped Mustache Mar 2021 · JavaScript frameworks
• dropped SoundManager Mar 2021 · JavaScript libraries
• dropped TinyMCE Mar 2021 · Rich text editors
• added Google Sign-in Feb 2021 · Social logins

2020 5 added · 7 dropped

• dropped Mixpanel Nov 2020 · Analytics
• dropped Babel Oct 2020 · Miscellaneous
• dropped Lodash Oct 2020 · JavaScript libraries
• added TinyMCE Oct 2020 · Rich text editors
• dropped Zendesk Aug 2020 · CMS
• dropped Google Font API May 2020 · Font Scripts
• dropped Quantcast Measure May 2020 · Analytics
• added Ghost Apr 2020 · Blogs
• added Prism Apr 2020 · Miscellaneous
• dropped Shopify Apr 2020 · Ecommerce
• added Babel Mar 2020 · Miscellaneous
• added Zendesk Mar 2020 · SaaS

2019 40 added · 7 dropped

• dropped New Relic Nov 2019 · Analytics
• added Google Analytics Enhanced eCommerce Oct 2019 · Analytics
• dropped Braintree Jul 2019 · Payment Processors
• added Lightbox Jun 2019 · JavaScript Libraries
• dropped Zendesk Chat Jun 2019 · Live Chat
• dropped Google Cloud May 2019 · CDN
• dropped Google Maps May 2019 · Maps
• dropped Polyfill May 2019 · JavaScript Libraries
• dropped SweetAlert May 2019 · JavaScript Libraries
• added Adyen Mar 2019 · Payment Processors
• added Backbone.js Mar 2019 · JavaScript Frameworks
• added Bootstrap Mar 2019 · Web Frameworks
• added Braintree Mar 2019 · Payment Processors
• added Chart.js Mar 2019 · JavaScript Graphics
• added Cloudflare Mar 2019 · CDN
• added Envoy Mar 2019 · Web Servers
• added Express Mar 2019 · Web Servers
• added Facebook Mar 2019 · Widgets
• added FancyBox Mar 2019 · JavaScript Libraries
• added Fastly Mar 2019 · CDN
• added GitHub Pages Mar 2019 · CDN
• added Google Font API Mar 2019 · Font Scripts
• added Google Plus Mar 2019 · Widgets
• added Google Tag Manager Mar 2019 · Tag Managers
• added jQuery Mar 2019 · JavaScript Libraries
• added jQuery UI Mar 2019 · JavaScript Libraries
• added MathJax Mar 2019 · JavaScript Graphics
• added Mixpanel Mar 2019 · Analytics
• added Modernizr Mar 2019 · JavaScript Libraries
• added Moment.js Mar 2019 · JavaScript Libraries
• added Mustache Mar 2019 · JavaScript Frameworks
• added New Relic Mar 2019 · Analytics
• added Node.js Mar 2019 · Programming Languages
• added Pardot Mar 2019 · Marketing Automation
• added Ruby Mar 2019 · Programming Languages
• added Ruby on Rails Mar 2019 · Web Frameworks
• added Shopify Mar 2019 · Ecommerce
• added SoundManager Mar 2019 · JavaScript Libraries
• added Stripe Mar 2019 · Payment Processors
• added SWFObject Mar 2019 · Miscellaneous
• added Ubuntu Mar 2019 · Operating Systems
• added Underscore.js Mar 2019 · JavaScript Libraries
• added Varnish Mar 2019 · Cache Tools
• added Webpack Mar 2019 · Miscellaneous
• added Zendesk Chat Mar 2019 · Live Chat
• added Amazon CloudFront Jan 2019 · CDN
• added Amazon Web Services Jan 2019 · PaaS

2018 10 added · 1 switched

• added Zendesk Chat Nov 2018 · Live Chat
• added Cloudflare Oct 2018 · CDN
• added Google Cloud Sep 2018 · CDN
• added New Relic Sep 2018 · Analytics
• added Facebook Aug 2018 · Widgets
• added Google Plus Aug 2018 · Widgets
• switched webpack-2 → Webpack Jul 2018 · Miscellaneous
• added Google Analytics Jun 2018 · Analytics
• added Quantcast Measure Jun 2018 · Analytics
• added React Jun 2018 · JavaScript Frameworks
• added webpack-2 Jun 2018 · Miscellaneous