Technology history for challenge.gov
Stack size over time
From 15 detected technologies in Aug 2018 to 20 in Jun 2026 (peak 21).
Currently detected
- jQuery since Aug 2018
- Google Analytics since Aug 2018
- reCAPTCHA since Oct 2018
- Amazon CloudFront since Jul 2019
- Amazon Web Services since Jul 2019
- Font Awesome since Nov 2019
- USWDS since Nov 2021
- Google Font API since Jul 2022
- jsDelivr since Jul 2022
- Google Workspace since Aug 2022
- HubSpot since Aug 2022
- Zendesk since Aug 2022
- Open Graph since Sep 2022
- HSTS since Sep 2022
- Elixir since Jun 2023
- Phoenix Framework since Jun 2023
- Erlang since Jun 2023
- Phoenix LiveView since Jun 2023
- Google Tag Manager since Jan 2025
- web-vitals since Jan 2025
Previously used
- jQuery CDN Feb 2022 to Mar 2026 · 4 yrs
- YouTube Aug 2022 to May 2023 · 9 mo
- Node.js Jul 2022 to Feb 2023 · 7 mo
- Phoenix Jul 2022 to Feb 2023 · 7 mo
- React Jul 2022 to Feb 2023 · 7 mo
- Webpack Jul 2022 to Feb 2023 · 7 mo
- Tailwind CSS Apr 2022 to Apr 2022 · 1 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Bootstrap Aug 2018 to Jun 2019 · 10 mo
- FingerprintJS Nov 2018 to Jun 2019 · 7 mo
- jQuery UI Aug 2018 to Jun 2019 · 10 mo
- MediaElement.js Aug 2018 to Jun 2019 · 10 mo
- Nginx Aug 2018 to Jun 2019 · 10 mo
- Select2 Oct 2018 to Jun 2019 · 8 mo
- AddThis Aug 2018 to Sep 2018 · 1 mo
- Backbone.js Aug 2018 to Sep 2018 · 1 mo
- jQuery Migrate Aug 2018 to Sep 2018 · 1 mo
- Microsoft HTTPAPI Aug 2018 to Sep 2018 · 1 mo
- MySQL Aug 2018 to Sep 2018 · 1 mo
- PHP Aug 2018 to Sep 2018 · 1 mo
- Twitter Aug 2018 to Sep 2018 · 1 mo
- Underscore.js Aug 2018 to Sep 2018 · 1 mo
- WordPress Aug 2018 to Sep 2018 · 1 mo
Timeline
2026 1 dropped
- dropped jQuery CDN May 2026 · CDN
2025 2 added
- added Google Tag Manager Jan 2025 · Tag managers
- added web-vitals Jan 2025 · JavaScript libraries
2023 5 dropped
- dropped Node.js Jul 2023 · Programming languages
- dropped Phoenix Jul 2023 · Web frameworks
- dropped React Jul 2023 · JavaScript frameworks
- dropped Webpack Jul 2023 · Miscellaneous
- dropped YouTube Jul 2023 · Video players
2022 17 added · 1 dropped
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Google Font API Aug 2022 · Font scripts
- added Google Workspace Aug 2022 · Webmail
- added HubSpot Aug 2022 · Marketing automation
- added jQuery CDN Aug 2022 · CDN
- added jsDelivr Aug 2022 · CDN
- added Node.js Aug 2022 · Programming languages
- added Phoenix Aug 2022 · Web frameworks
- added React Aug 2022 · JavaScript frameworks
- added reCAPTCHA Aug 2022 · Security
- added USWDS Aug 2022 · Web frameworks
- added Webpack Aug 2022 · Miscellaneous
- added YouTube Aug 2022 · Video players
- added Zendesk Aug 2022 · Documentation
- dropped Tailwind CSS Jun 2022 · UI frameworks
- added Tailwind CSS Apr 2022 · UI frameworks
- added jQuery CDN Feb 2022 · CDN
2021 3 added · 1 dropped
- dropped Wheelio Dec 2021 · Widgets
- added reCAPTCHA Nov 2021 · Security
- added USWDS Nov 2021 · Web frameworks
- added Wheelio Sep 2021 · Widgets
2020 7 dropped
- dropped Bootstrap Mar 2020 · Web Frameworks
- dropped FingerprintJS Mar 2020 · JavaScript Libraries
- dropped jQuery UI Mar 2020 · JavaScript Libraries
- dropped MediaElement.js Mar 2020 · Video Players
- dropped Nginx Mar 2020 · Web Servers
- dropped reCAPTCHA Mar 2020 · Captchas
- dropped Select2 Mar 2020 · JavaScript Libraries
2019 3 added
- added Font Awesome Nov 2019 · Font Scripts
- added Amazon CloudFront Jul 2019 · CDN
- added Amazon Web Services Jul 2019 · PaaS
2018 3 added · 9 dropped
- dropped AddThis Nov 2018 · Widgets
- dropped Backbone.js Nov 2018 · JavaScript Frameworks
- added FingerprintJS Nov 2018 · JavaScript Libraries
- dropped jQuery Migrate Nov 2018 · JavaScript Libraries
- dropped Microsoft HTTPAPI Nov 2018 · Web Servers
- dropped MySQL Nov 2018 · Databases
- dropped PHP Nov 2018 · Programming Languages
- dropped Twitter Nov 2018 · Widgets
- dropped Underscore.js Nov 2018 · JavaScript Libraries
- dropped WordPress Nov 2018 · CMS
- added reCAPTCHA Oct 2018 · Captchas
- added Select2 Oct 2018 · JavaScript Libraries