Technology history for codeforces.com
Stack size over time
From 5 detected technologies in Apr 2018 to 23 in Jun 2026.
Currently detected
- Google Font API since Apr 2018
- jQuery since Apr 2018
- Font Awesome since Apr 2018
- Moment.js since Apr 2018
- Nginx since Apr 2018
- YouTube since Jun 2018
- Google Code Prettify since Jun 2018
- Google Analytics since Jun 2018
- MathJax since Jun 2018
- Clipboard.js since Jan 2019
- Java since Sep 2021
- SWFObject since Aug 2022
- Highlight.js since Aug 2022
- PWA since Aug 2022
- Cloudflare since Aug 2022
- FingerprintJS since Aug 2022
- HSTS since Sep 2022
- Open Graph since Sep 2022
- Cloudflare Browser Insights since Feb 2024
- HTTP/3 since Aug 2024
- AngularJS since Jan 2025
- Cart Functionality since Jan 2025
- Cloudflare Turnstile since Jan 2025
Previously used
- cdnjs Aug 2022 to Nov 2023 · 1 yr
- jsDelivr Jul 2020 to Nov 2023 · 3 yrs
- Cloudflare Bot Management May 2023 to Jul 2023 · 2 mo
- C Feb 2023 to Feb 2023 · 1 mo
- Facebook Jun 2018 to Apr 2022 · 3 yrs
- Facebook Login Jul 2021 to Apr 2022 · 9 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Choices Feb 2021 to Feb 2021 · 1 mo
- Google Analytics Enhanced eCommerce Mar 2020 to Nov 2020 · 8 mo
- Google Tag Manager Sep 2019 to Nov 2020 · 1 yr
Timeline
2026 3 added · 1 dropped
- added AngularJS Jun 2026 · JavaScript frameworks
- added Cart Functionality Jun 2026 · Ecommerce
- added Cloudflare Turnstile Jun 2026 · Security
- dropped Cart Functionality Mar 2026 · Ecommerce
2025 2 added · 3 dropped
- dropped AngularJS Jul 2025 · JavaScript frameworks
- added Cart Functionality Jul 2025 · Ecommerce
- dropped Cloudflare Turnstile Jul 2025 · Security
- dropped Cart Functionality Mar 2025 · Ecommerce
- added Cart Functionality Jan 2025 · Ecommerce
2024 2 added · 2 dropped
- added HTTP/3 Aug 2024 · Miscellaneous
- added Cloudflare Browser Insights Feb 2024 · Analytics
- dropped cdnjs Jan 2024 · CDN
- dropped jsDelivr Jan 2024 · CDN
2023 2 added · 3 dropped
- dropped Cloudflare Bot Management Sep 2023 · Security
- dropped C Jun 2023 · Programming languages
- dropped Facebook Jun 2023 · Widgets
- added Cloudflare Bot Management May 2023 · Security
- added C Feb 2023 · Programming languages
2022 6 added · 1 dropped
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added cdnjs Aug 2022 · CDN
- added Cloudflare Aug 2022 · CDN
- added Highlight.js Aug 2022 · JavaScript libraries
- added PWA Aug 2022 · Miscellaneous
- dropped Facebook Login Jun 2022 · Authentication
2021 4 added · 4 dropped
- dropped Wheelio Dec 2021 · Widgets
- added Java Sep 2021 · Programming languages
- added Wheelio Sep 2021 · Widgets
- added Facebook Login Jul 2021 · Social logins
- dropped Choices Apr 2021 · Miscellaneous
- added Choices Feb 2021 · Miscellaneous
- dropped Google Analytics Enhanced eCommerce Jan 2021 · Ecommerce
- dropped Google Tag Manager Jan 2021 · Tag managers
2020 5 added · 2 dropped
- added Google Analytics Enhanced eCommerce Nov 2020 · Ecommerce
- added Google Tag Manager Nov 2020 · Tag managers
- added jsDelivr Jul 2020 · CDN
- dropped Google Analytics Enhanced eCommerce May 2020 · Analytics
- dropped Google Tag Manager May 2020 · Tag Managers
- added Google Analytics Enhanced eCommerce Mar 2020 · Analytics
- added Google Tag Manager Mar 2020 · Tag Managers
2019 3 added · 1 dropped
- dropped Google Tag Manager Nov 2019 · Tag Managers
- added Google Tag Manager Sep 2019 · Tag Managers
- added Clipboard.js Mar 2019 · Miscellaneous
- added Clipboard.js Jan 2019 · Miscellaneous