Technology history for epa.gov
Stack size over time
From 5 detected technologies in Apr 2018 to 109 in Jun 2026 (peak 110).
Currently detected
- jQuery since Apr 2018
- Drupal since Apr 2018
- Google Tag Manager since Apr 2018
- Twitter since Apr 2018
- YouTube since Apr 2018
- Apache HTTP Server since Jun 2018
- Crazy Egg since Jun 2018
- Google Analytics since Jun 2018
- jQuery UI since Jun 2018
- PHP since Jun 2018
- Bootstrap since Aug 2018
- Apache Tomcat since Aug 2018
- ArcGIS API for JavaScript since Aug 2018
- Java since Aug 2018
- JavaServer Faces since Aug 2018
- IIS since Aug 2018
- jQuery Migrate since Aug 2018
- Knockout.js since Aug 2018
- Dojo since Aug 2018
- Font Awesome since Aug 2018
- D3 since Aug 2018
- DataTables since Aug 2018
- FancyBox since Aug 2018
- MySQL since Aug 2018
- Moment.js since Aug 2018
- Lodash since Aug 2018
- Microsoft ASP.NET since Aug 2018
- Modernizr since Aug 2018
- mod_jk since Aug 2018
- Oracle HTTP Server since Aug 2018
- Google Font API since Aug 2018
- Oracle Application Server since Aug 2018
- OpenSSL since Aug 2018
- Oracle Web Cache since Aug 2018
- OWL Carousel since Aug 2018
- Vue.js since Aug 2018
- Red Hat since Aug 2018
- Select2 since Aug 2018
- Windows Server since Aug 2018
- Twitter Emoji (Twemoji) since Aug 2018
- WordPress since Aug 2018
- Amazon CloudFront since Sep 2018
- New Relic since Sep 2018
- Webpack since Sep 2018
- Oracle Dynamic Monitoring Service since Jan 2019
- UNIX since Jan 2019
- Python since Jan 2019
- Amazon Web Services since Feb 2019
- DreamWeaver since Feb 2019
- Nginx since Feb 2020
- AngularJS since Apr 2020
- Jetty since Apr 2020
- Popper since Feb 2021
- Choices since May 2021
- TinyMCE since May 2021
- React since Jul 2021
- Twitter Ads since Jul 2021
- Amazon ALB since Sep 2021
- core-js since Sep 2021
- Wheelio since Sep 2021
- cdnjs since Nov 2021
- jQuery CDN since Feb 2022
- Fourthwall since Feb 2022
- USWDS since Feb 2022
- Google Hosted Libraries since Mar 2022
- Drupal Multisite since Apr 2022
- Tailwind CSS since Apr 2022
- toastr since Apr 2022
- Cloudflare since May 2022
- Hammer.js since Jul 2022
- jsDelivr since Jul 2022
- RequireJS since Jul 2022
- Amazon SES since Aug 2022
- Angular since Aug 2022
- Microsoft 365 since Aug 2022
- PWA since Aug 2022
- TypeScript since Aug 2022
- Zone.js since Aug 2022
- HSTS since Sep 2022
- Open Graph since Sep 2022
- RSS since Dec 2022
- Oracle WebLogic Server since Mar 2023
- MapLibre GL JS since May 2023
- Monaco Editor since May 2023
- Oracle Application Express since May 2023
- Prism since May 2023
- MariaDB since Jun 2023
- Skolengo since Jun 2023
- ShareThis since Jun 2023
- Emotion since Mar 2024
- Siteimprove since Jul 2024
- Bootstrap Icons since Oct 2024
- Django since Oct 2024
- MobX since Oct 2024
- React Router since Nov 2024
- web-vitals since Jan 2025
- Cloudflare Bot Management since Mar 2025
- Clarity since Mar 2025
- Leaflet since Mar 2025
- lit-element since Mar 2025
- Livefyre since Mar 2025
- lit-html since Mar 2025
- Amazon S3 since Apr 2025
- Vuetify since Jun 2025
- Priority Hints since Jul 2025
- Alpine.js since Nov 2025
- Htmx since Nov 2025
- petite-vue since Mar 2026
- Svelte since Apr 2026
Previously used
- reCAPTCHA Oct 2022 to Oct 2025 · 3 yrs
- jQuery Mobile Apr 2024 to Jun 2025 · 1 yr
- JsObservable Apr 2024 to Jun 2025 · 1 yr
- JsRender Apr 2024 to Jun 2025 · 1 yr
- JsViews Apr 2024 to Jun 2025 · 1 yr
- Microsoft Advertising Apr 2024 to Jun 2025 · 1 yr
- Atlassian Jira Issue Collector Sep 2021 to Jan 2025 · 3 yrs
- styled-components Jul 2021 to Feb 2024 · 2 yrs
- AddThis Feb 2023 to Feb 2023 · 1 mo
- C Feb 2023 to Feb 2023 · 1 mo
- Moat Feb 2023 to Feb 2023 · 1 mo
- Chart.js Jul 2022 to Oct 2022 · 3 mo
- mod_wsgi Jan 2019 to Oct 2022 · 3 yrs
- Animate.css Aug 2018 to Mar 2022 · 3 yrs
- CodeMirror Sep 2020 to Mar 2022 · 1 yr
- math.js Sep 2020 to Dec 2021 · 1 yr
- HCL Domino Aug 2018 to Oct 2021 · 3 yrs
- Akamai Apr 2020 to Dec 2020 · 8 mo
- CentOS Mar 2020 to Sep 2020 · 6 mo
- Phusion Passenger Aug 2018 to Aug 2018 · 1 mo
- Ruby Aug 2018 to Aug 2018 · 1 mo
- Ruby on Rails Aug 2018 to Aug 2018 · 1 mo
- SyntaxHighlighter Aug 2018 to Aug 2018 · 1 mo
- XRegExp Aug 2018 to Aug 2018 · 1 mo
Timeline
2026 1 added · 1 switched
- switched reCAPTCHA Cloudflare Bot Management May 2026 · Security
- added petite-vue Mar 2026 · Miscellaneous
2025 11 added · 13 dropped
- added Alpine.js Nov 2025 · JavaScript frameworks
- dropped Cloudflare Bot Management Nov 2025 · Security
- added Htmx Nov 2025 · JavaScript libraries
- dropped Chart.js Sep 2025 · JavaScript graphics
- dropped jQuery Mobile Aug 2025 · Mobile frameworks
- dropped JsObservable Aug 2025 · JavaScript libraries
- dropped JsRender Aug 2025 · JavaScript libraries
- dropped JsViews Aug 2025 · JavaScript libraries
- dropped Microsoft Advertising Aug 2025 · Advertising
- added jQuery Mobile Jun 2025 · Mobile frameworks
- added JsObservable Jun 2025 · JavaScript libraries
- added JsRender Jun 2025 · JavaScript libraries
- added JsViews Jun 2025 · JavaScript libraries
- added Microsoft Advertising Jun 2025 · Advertising
- dropped jQuery Mobile May 2025 · Mobile frameworks
- dropped JsObservable May 2025 · JavaScript libraries
- dropped JsRender May 2025 · JavaScript libraries
- dropped JsViews May 2025 · JavaScript libraries
- dropped Microsoft Advertising May 2025 · Advertising
- dropped Atlassian Jira Issue Collector Mar 2025 · Issue trackers
- added Cloudflare Bot Management Mar 2025 · Security
- added lit-element Mar 2025 · JavaScript libraries
- added lit-html Mar 2025 · JavaScript libraries
- added web-vitals Jan 2025 · JavaScript libraries
2024 5 added · 3 dropped
- added React Nov 2024 · JavaScript frameworks
- added React Router Nov 2024 · JavaScript frameworks
- added Microsoft Advertising Sep 2024 · Advertising
- dropped Microsoft Advertising Jul 2024 · Advertising
- added Siteimprove Jul 2024 · Analytics
- dropped React Apr 2024 · JavaScript frameworks
- dropped styled-components Apr 2024 · JavaScript frameworks
- added Emotion Mar 2024 · JavaScript frameworks
2023 19 added · 4 dropped · 1 switched
- dropped AddThis Sep 2023 · Widgets
- dropped Moat Sep 2023 · Analytics
- added MariaDB Jun 2023 · Databases
- added Skolengo Jun 2023 · CMS
- added Amazon SES May 2023 · Email
- dropped Animate.css May 2023 · UI frameworks
- added ArcGIS API for JavaScript May 2023 · Maps
- added Atlassian Jira Issue Collector May 2023 · Issue trackers
- added Dojo May 2023 · JavaScript libraries
- added Drupal Multisite May 2023 · Hosting
- added OWL Carousel May 2023 · JavaScript libraries
- added Popper May 2023 · Miscellaneous
- added React May 2023 · JavaScript frameworks
- added Red Hat May 2023 · Operating systems
- added styled-components May 2023 · JavaScript frameworks
- added TinyMCE May 2023 · Rich text editors
- added toastr May 2023 · JavaScript frameworks
- added Twitter May 2023 · Widgets
- added Twitter Ads May 2023 · Advertising
- added UNIX May 2023 · Operating systems
- added YouTube May 2023 · Video players
- dropped C Apr 2023 · Programming languages
- switched HCL Domino Oracle WebLogic Server Mar 2023 · Web servers
- added C Feb 2023 · Programming languages
2022 34 added · 5 dropped
- dropped CodeMirror Dec 2022 · Miscellaneous
- dropped mod_wsgi Dec 2022 · Web server extensions
- dropped Python Dec 2022 · Programming languages
- added RSS Dec 2022 · Miscellaneous
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Amazon SES Aug 2022 · Email
- added Atlassian Jira Issue Collector Aug 2022 · Issue trackers
- added cdnjs Aug 2022 · CDN
- added Chart.js Aug 2022 · JavaScript graphics
- added Cloudflare Aug 2022 · CDN
- added Drupal Multisite Aug 2022 · Hosting
- added jQuery CDN Aug 2022 · CDN
- added jsDelivr Aug 2022 · CDN
- added Microsoft 365 Aug 2022 · Webmail
- added mod_wsgi Aug 2022 · Web server extensions
- added Popper Aug 2022 · Miscellaneous
- added PWA Aug 2022 · Miscellaneous
- added Python Aug 2022 · Programming languages
- added React Aug 2022 · JavaScript frameworks
- added Red Hat Aug 2022 · Operating systems
- added RequireJS Aug 2022 · JavaScript frameworks
- added styled-components Aug 2022 · JavaScript frameworks
- added TinyMCE Aug 2022 · Rich text editors
- added toastr Aug 2022 · JavaScript frameworks
- added Twitter Aug 2022 · Widgets
- added Twitter Ads Aug 2022 · Advertising
- added UNIX Aug 2022 · Operating systems
- added Vue.js Aug 2022 · JavaScript frameworks
- added YouTube Aug 2022 · Video players
- dropped Tailwind CSS Jun 2022 · UI frameworks
- added Cloudflare May 2022 · CDN
- added Drupal Multisite Apr 2022 · Hosting
- added Tailwind CSS Apr 2022 · UI frameworks
- added toastr Apr 2022 · JavaScript frameworks
- added Fourthwall Feb 2022 · Ecommerce
- added jQuery CDN Feb 2022 · CDN
- dropped math.js Feb 2022 · JavaScript libraries
- added USWDS Feb 2022 · Web frameworks
2021 10 added · 4 dropped
- added cdnjs Nov 2021 · CDN
- dropped CentOS Oct 2021 · Operating Systems
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added CodeMirror Jul 2021 · Miscellaneous
- added New Relic Jul 2021 · Analytics
- added React Jul 2021 · JavaScript libraries
- added styled-components Jul 2021 · JavaScript frameworks
- added Twitter Ads Jul 2021 · Advertising
- added Webpack Jul 2021 · Miscellaneous
- dropped CodeMirror Mar 2021 · Miscellaneous
- dropped Webpack Mar 2021 · Miscellaneous
- dropped Akamai Feb 2021 · CDN
- added Popper Feb 2021 · Miscellaneous
2020 5 added · 7 dropped
- dropped mod_wsgi Dec 2020 · Web server extensions
- dropped New Relic Dec 2020 · Analytics
- dropped Python Dec 2020 · Programming languages
- dropped UNIX Dec 2020 · Operating systems
- added New Relic Oct 2020 · Analytics
- added CodeMirror Sep 2020 · Miscellaneous
- dropped FancyBox Sep 2020 · JavaScript libraries
- dropped New Relic Sep 2020 · Analytics
- added New Relic Jul 2020 · Analytics
- added Akamai Apr 2020 · CDN
- dropped New Relic Mar 2020 · Analytics
- added Vue.js Mar 2020 · JavaScript Frameworks
2019 21 added · 4 dropped · 1 switched
- added New Relic Nov 2019 · Analytics
- dropped New Relic Oct 2019 · Analytics
- added New Relic Jun 2019 · Analytics
- dropped New Relic May 2019 · Analytics
- added Amazon Web Services Mar 2019 · PaaS
- added Apache Tomcat Mar 2019 · Web Servers
- added DreamWeaver Mar 2019 · Editors
- added FancyBox Mar 2019 · JavaScript Libraries
- added mod_jk Mar 2019 · Web Server Extensions
- added mod_wsgi Mar 2019 · Web Server Extensions
- added New Relic Mar 2019 · Analytics
- added Oracle Application Server Mar 2019 · Web Servers
- added Oracle Dynamic Monitoring Service Mar 2019 · Miscellaneous
- added Python Mar 2019 · Programming Languages
- added Twitter Mar 2019 · Widgets
- added UNIX Mar 2019 · Operating Systems
- added Webpack Mar 2019 · Miscellaneous
- added YouTube Mar 2019 · Video Players
- added Amazon Web Services Feb 2019 · PaaS
- added New Relic Feb 2019 · Analytics
- dropped Vue.js Feb 2019 · JavaScript Frameworks
- added mod_wsgi Jan 2019 · Web Server Extensions
- dropped New Relic Jan 2019 · Analytics
- added Oracle Dynamic Monitoring Service Jan 2019 · Miscellaneous
- switched Ruby Python Jan 2019 · Programming Languages
- added UNIX Jan 2019 · Operating Systems
2018 8 added · 6 dropped
- dropped D3 Oct 2018 · JavaScript Graphics
- dropped Phusion Passenger Oct 2018 · Web Servers
- dropped Ruby on Rails Oct 2018 · Web Frameworks
- dropped SyntaxHighlighter Oct 2018 · Miscellaneous
- dropped XRegExp Oct 2018 · JavaScript Libraries
- added Amazon CloudFront Sep 2018 · CDN
- added New Relic Sep 2018 · Analytics
- added Webpack Sep 2018 · Miscellaneous
- dropped Twitter Jul 2018 · Widgets
- added Apache HTTP Server Jun 2018 · Web Servers
- added Crazy Egg Jun 2018 · Analytics
- added Google Analytics Jun 2018 · Analytics
- added jQuery UI Jun 2018 · JavaScript Frameworks
- added PHP Jun 2018 · Programming Languages