Technology history for usa.gov
Stack size over time
From 5 detected technologies in Apr 2018 to 42 in Jun 2026 (peak 43).
Currently detected
- Amazon CloudFront since Apr 2018
- Google Tag Manager since Apr 2018
- HubSpot since Apr 2018
- Drupal since Apr 2018
- jQuery since Apr 2018
- PHP since Jun 2018
- Crazy Egg since Jun 2018
- Google Analytics since Jun 2018
- Cloudflare since Aug 2018
- Amazon S3 since Dec 2018
- Amazon Web Services since Jan 2019
- D3 since Mar 2020
- Twitter since Jun 2020
- Font Awesome since Jun 2020
- HubSpot Analytics since Feb 2021
- Ubuntu since Mar 2021
- HubSpot CMS Hub since Jun 2021
- HubSpot Chat since Jun 2021
- Qualtrics since Aug 2021
- core-js since Sep 2021
- USWDS since Oct 2021
- Cloudflare Bot Management since Nov 2021
- Twitter Ads since Aug 2022
- Amazon SES since Aug 2022
- Linkedin Sign-in since Aug 2022
- HSTS since Sep 2022
- Open Graph since Sep 2022
- Nuxt.js since Oct 2022
- Vue.js since Oct 2022
- Amazon ALB since Oct 2022
- Lodash since Oct 2022
- Node.js since Oct 2022
- Webpack since Oct 2022
- RSS since Dec 2022
- HTTP/3 since Dec 2022
- Siteimprove since Feb 2023
- web-vitals since Jan 2025
- Ruby since Nov 2025
- Ruby on Rails since Nov 2025
- Apache HTTP Server since Nov 2025
- Google Font API since Nov 2025
- New Relic since Nov 2025
Previously used
- Contentful Nov 2025 to Nov 2025 · 1 mo
- Accessible360 Nov 2023 to Aug 2024 · 9 mo
- cdnjs Nov 2023 to Aug 2024 · 9 mo
- jsDelivr Nov 2023 to Aug 2024 · 9 mo
- Matomo Analytics Aug 2020 to Aug 2024 · 4 yrs
- Slick Nov 2023 to Aug 2024 · 9 mo
- YouTube Jul 2022 to Apr 2023 · 9 mo
- React Jun 2020 to Nov 2022 · 2 yrs
- Cloudflare Network Error Logging Feb 2022 to Oct 2022 · 8 mo
- jQuery Migrate Dec 2019 to Sep 2022 · 2 yrs
- Nginx Jun 2018 to Sep 2022 · 4 yrs
- Cart Functionality Aug 2020 to Aug 2022 · 2 yrs
- Google Remarketing Tag Jul 2021 to May 2022 · 10 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- HubSpot Cookie Aug 2021 to Aug 2021 · 1 mo
- Matomo Aug 2018 to Jul 2020 · 1 yr
- Linkedin Jun 2020 to Jun 2020 · 1 mo
Timeline
2026 1 dropped
- dropped Contentful Jan 2026 · CMS
2025 1 added · 1 switched
- added Contentful Nov 2025 · CMS
- switched Slick web-vitals Jan 2025 · JavaScript libraries
2024 4 dropped
- dropped Accessible360 Oct 2024 · Accessibility
- dropped cdnjs Oct 2024 · CDN
- dropped jsDelivr Oct 2024 · CDN
- dropped Matomo Analytics Oct 2024 · Analytics
2023 5 added · 4 dropped
- added Accessible360 Nov 2023 · Accessibility
- added cdnjs Nov 2023 · CDN
- added jsDelivr Nov 2023 · CDN
- added Slick Nov 2023 · JavaScript libraries
- dropped YouTube Jun 2023 · Video players
- dropped jQuery Migrate May 2023 · JavaScript libraries
- dropped Nginx May 2023 · Web servers
- added Siteimprove Feb 2023 · Analytics
- dropped React Jan 2023 · JavaScript frameworks
2022 25 added · 5 dropped
- dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
- added HTTP/3 Dec 2022 · Miscellaneous
- added RSS Dec 2022 · Miscellaneous
- dropped Cart Functionality Nov 2022 · Ecommerce
- dropped Linkedin Nov 2022 · Widgets
- dropped Matomo Nov 2022 · Analytics
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Amazon SES Aug 2022 · Email
- added Amazon Web Services Aug 2022 · PaaS
- added Cart Functionality Aug 2022 · Ecommerce
- added Cloudflare Aug 2022 · CDN
- added Cloudflare Bot Management Aug 2022 · Security
- added Cloudflare Network Error Logging Aug 2022 · Issue trackers
- added D3 Aug 2022 · JavaScript graphics
- added Drupal Aug 2022 · CMS
- added HubSpot Aug 2022 · Marketing automation
- added HubSpot Analytics Aug 2022 · Analytics
- added HubSpot Chat Aug 2022 · Live chat
- added HubSpot CMS Hub Aug 2022 · CMS
- added jQuery Migrate Aug 2022 · JavaScript libraries
- added Matomo Analytics Aug 2022 · Analytics
- added Nginx Aug 2022 · Web servers
- added PHP Aug 2022 · Programming languages
- added Qualtrics Aug 2022 · Surveys
- added USWDS Aug 2022 · Web frameworks
- added YouTube Aug 2022 · Video players
- dropped Google Remarketing Tag Jul 2022 · Retargeting
- added YouTube Jul 2022 · Video players
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
2021 13 added · 6 dropped
- dropped core-js Dec 2021 · JavaScript libraries
- dropped Wheelio Dec 2021 · Widgets
- added Cloudflare Bot Management Nov 2021 · Security
- dropped HubSpot Cookie Oct 2021 · Cookie compliance
- added USWDS Oct 2021 · Web frameworks
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added HubSpot Cookie Aug 2021 · Cookie compliance
- added Qualtrics Aug 2021 · Surveys
- added D3 Jul 2021 · JavaScript graphics
- added Google Remarketing Tag Jul 2021 · Retargeting
- added HubSpot Chat Jun 2021 · Live chat
- added HubSpot CMS Hub Jun 2021 · CMS
- added Matomo Analytics Jun 2021 · Analytics
- dropped Ubuntu May 2021 · Operating systems
- dropped D3 Mar 2021 · JavaScript graphics
- dropped Matomo Analytics Mar 2021 · Analytics
- added Ubuntu Mar 2021 · Operating systems
- added HubSpot Analytics Feb 2021 · Analytics
2020 2 added · 1 dropped
- dropped Cart Functionality Nov 2020 · Ecommerce
- added Cart Functionality Aug 2020 · Ecommerce
- added Matomo Analytics Aug 2020 · Analytics
2019 9 added
- added jQuery Migrate Dec 2019 · JavaScript Libraries
- added Amazon Web Services Mar 2019 · PaaS
- added Cloudflare Mar 2019 · CDN
- added Drupal Mar 2019 · CMS
- added HubSpot Mar 2019 · Marketing Automation
- added Matomo Mar 2019 · Analytics
- added Nginx Mar 2019 · Web Servers
- added PHP Mar 2019 · Programming Languages
- added Amazon Web Services Jan 2019 · PaaS