Technology history for usaco.guide
Stack size over time
From 7 detected technologies in Dec 2020 to 26 in Jun 2026 (peak 32).
Currently detected
- React since Dec 2020
- Vercel since Dec 2020
- Google Analytics since Dec 2020
- Webpack since Dec 2020
- jQuery since Nov 2021
- Ruby on Rails since Nov 2021
- Moment.js since Nov 2021
- Ruby since Nov 2021
- Discourse since Nov 2021
- Ember.js since Nov 2021
- Tailwind CSS since Apr 2022
- Headless UI since Jul 2022
- PWA since Aug 2022
- Firebase since Aug 2022
- Next.js since Aug 2022
- Node.js since Aug 2022
- Open Graph since Sep 2022
- HSTS since Sep 2022
- Vercel Analytics since Dec 2022
- Cloudflare since Jan 2023
- RSS since Feb 2023
- HTTP/3 since Jul 2024
- SvelteKit since Feb 2025
- Vite since Feb 2025
- Svelte since Feb 2025
- Cloudflare Browser Insights since Nov 2025
Previously used
- Gatsby Dec 2020 to Mar 2026 · 5 yrs
- jsDelivr Dec 2020 to Mar 2026 · 5 yrs
- Nginx Nov 2021 to Nov 2025 · 4 yrs
- core-js Sep 2021 to Jul 2025 · 3 yrs
- Sentry Dec 2020 to Mar 2025 · 4 yrs
- Vercel Speed Insights Jan 2025 to Mar 2025 · 2 mo
- styled-components Jul 2021 to Feb 2025 · 3 yrs
- Cart Functionality Mar 2022 to Jul 2023 · 1 yr
- C Feb 2023 to Feb 2023 · 1 mo
- Google Tag Manager Aug 2022 to Sep 2022 · 1 mo
- Handlebars Nov 2021 to Apr 2022 · 5 mo
- Highlight.js Nov 2021 to Apr 2022 · 5 mo
- jQuery UI Nov 2021 to Apr 2022 · 5 mo
- Lodash Nov 2021 to Apr 2022 · 5 mo
- Google Plus May 2021 to Oct 2021 · 5 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Hotjar Jan 2021 to Feb 2021 · 1 mo
Timeline
2026 3 dropped
- dropped Gatsby May 2026 · JavaScript frameworks
- dropped jsDelivr May 2026 · CDN
- dropped Nginx Jan 2026 · Web servers
2025 5 added · 4 dropped
- added Cloudflare Browser Insights Nov 2025 · Analytics
- dropped core-js Sep 2025 · JavaScript libraries
- dropped Sentry May 2025 · Issue trackers
- dropped Vercel Speed Insights May 2025 · Analytics
- dropped styled-components Apr 2025 · Development
- added Svelte Feb 2025 · JavaScript frameworks
- added SvelteKit Feb 2025 · UI frameworks
- added Vite Feb 2025 · Miscellaneous
- added Vercel Speed Insights Jan 2025 · Analytics
2024 1 added
- added HTTP/3 Jul 2024 · Miscellaneous
2023 16 added · 1 dropped · 1 switched
- dropped Cart Functionality Sep 2023 · Ecommerce
- added core-js May 2023 · JavaScript libraries
- added Firebase May 2023 · Databases
- added Gatsby May 2023 · JavaScript frameworks
- added Google Analytics May 2023 · Analytics
- added Headless UI May 2023 · UI frameworks
- added jsDelivr May 2023 · CDN
- added Next.js May 2023 · JavaScript frameworks
- switched C Node.js May 2023 · Programming languages
- added React May 2023 · JavaScript frameworks
- added Sentry May 2023 · Issue trackers
- added styled-components May 2023 · JavaScript frameworks
- added Tailwind CSS May 2023 · UI frameworks
- added Vercel May 2023 · PaaS
- added Vercel Analytics May 2023 · Analytics
- added Webpack May 2023 · Miscellaneous
- added Cart Functionality Apr 2023 · Ecommerce
- added Cloudflare Jan 2023 · CDN
2022 25 added · 6 dropped
- dropped Google Tag Manager Dec 2022 · Tag managers
- added Vercel Analytics Dec 2022 · Analytics
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- dropped Cart Functionality Aug 2022 · Ecommerce
- added core-js Aug 2022 · JavaScript libraries
- added Discourse Aug 2022 · Message boards
- added Ember.js Aug 2022 · JavaScript frameworks
- added Gatsby Aug 2022 · JavaScript frameworks
- added Google Analytics Aug 2022 · Analytics
- dropped Handlebars Aug 2022 · JavaScript frameworks
- added Headless UI Aug 2022 · UI frameworks
- dropped Highlight.js Aug 2022 · Miscellaneous
- added jQuery Aug 2022 · JavaScript libraries
- dropped jQuery UI Aug 2022 · JavaScript libraries
- added jsDelivr Aug 2022 · CDN
- dropped Lodash Aug 2022 · JavaScript libraries
- added Moment.js Aug 2022 · JavaScript libraries
- added Nginx Aug 2022 · Web servers
- added PWA Aug 2022 · Miscellaneous
- added React Aug 2022 · JavaScript frameworks
- added Ruby Aug 2022 · Programming languages
- added Ruby on Rails Aug 2022 · Web frameworks
- added Sentry Aug 2022 · Issue trackers
- added styled-components Aug 2022 · JavaScript frameworks
- added Tailwind CSS Aug 2022 · UI frameworks
- added Vercel Aug 2022 · PaaS
- added Webpack Aug 2022 · Miscellaneous
- added Headless UI Jul 2022 · UI frameworks
- added Tailwind CSS Apr 2022 · UI frameworks
- added Cart Functionality Mar 2022 · Ecommerce
2021 7 added · 5 dropped · 1 switched
- dropped Wheelio Dec 2021 · Widgets
- added core-js Sep 2021 · JavaScript libraries
- switched Google Plus Wheelio Sep 2021 · Widgets
- added Gatsby Jul 2021 · JavaScript frameworks
- added Sentry Jul 2021 · Issue trackers
- added styled-components Jul 2021 · JavaScript frameworks
- added Webpack Jul 2021 · Miscellaneous
- added Google Plus May 2021 · Widgets
- dropped Gatsby Apr 2021 · Static site generator
- dropped Hotjar Apr 2021 · Analytics
- dropped Webpack Apr 2021 · Miscellaneous
- dropped Sentry Mar 2021 · Issue trackers
- added Hotjar Jan 2021 · Analytics