Technology history for onlinejudge.org
Stack size over time
From 2 detected technologies in Apr 2018 to 19 in Jun 2026 (peak 23).
Currently detected
- Joomla since Apr 2018
- Nginx since Apr 2018
- PHP since Jun 2018
- Google Analytics since Jun 2018
- AngularJS since Aug 2018
- jQuery since Aug 2018
- DoubleClick Ad Exchange (AdX) since Aug 2018
- Express since Aug 2018
- Google AdSense since Aug 2018
- Node.js since Aug 2018
- reCAPTCHA since Oct 2018
- Facebook Login since Jun 2021
- Patreon since Jul 2021
- PayPal since Jul 2021
- Google Hosted Libraries since Feb 2022
- Amazon S3 since May 2022
- Amazon Web Services since May 2022
- OVHcloud since Aug 2022
- Google Font API since Nov 2022
Previously used
- Google Tag Manager Aug 2021 to Oct 2025 · 4 yrs
- Snowplow Analytics Oct 2024 to Mar 2025 · 5 mo
- Cloudflare Jan 2025 to Feb 2025 · 1 mo
- Cloudflare Bot Management Jan 2025 to Feb 2025 · 1 mo
- Amazon ALB Jun 2023 to Nov 2023 · 5 mo
- C Feb 2023 to Feb 2023 · 1 mo
- Facebook Aug 2018 to Apr 2022 · 3 yrs
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- CoinHive Aug 2018 to Sep 2019 · 1 yr
Timeline
2026 1 added · 1 dropped
- added Google Font API Jun 2026 · Font scripts
- dropped Google Font API May 2026 · Font scripts
2025 4 added · 4 dropped
- dropped Google Tag Manager Dec 2025 · Tag managers
- added Google Font API Nov 2025 · Font scripts
- dropped Snowplow Analytics May 2025 · Analytics
- dropped Cloudflare Apr 2025 · CDN
- dropped Cloudflare Bot Management Apr 2025 · Security
- added Snowplow Analytics Feb 2025 · Analytics
- added Cloudflare Jan 2025 · CDN
- added Cloudflare Bot Management Jan 2025 · Security
2024 1 added · 2 dropped
- dropped Snowplow Analytics Dec 2024 · Analytics
- added Snowplow Analytics Oct 2024 · Analytics
- dropped Amazon ALB Jan 2024 · Load balancers
2023 12 added · 1 dropped · 1 switched
- added Amazon ALB Jun 2023 · Load balancers
- added Amazon S3 May 2023 · CDN
- added Amazon Web Services May 2023 · PaaS
- added AngularJS May 2023 · JavaScript frameworks
- added Express May 2023 · Web servers
- added Facebook Login May 2023 · Authentication
- added Google Hosted Libraries May 2023 · CDN
- added Google Tag Manager May 2023 · Tag managers
- switched C Node.js May 2023 · Programming languages
- added OVHcloud May 2023 · PaaS
- added Patreon May 2023 · Payment processors
- added PayPal May 2023 · Payment processors
- added C Feb 2023 · Programming languages
- dropped Google Font API Jan 2023 · Font scripts
2022 14 added · 1 dropped
- added Amazon S3 Aug 2022 · Miscellaneous
- added Amazon Web Services Aug 2022 · PaaS
- added AngularJS Aug 2022 · JavaScript frameworks
- added Express Aug 2022 · Web servers
- added Facebook Login Aug 2022 · Authentication
- added Google Hosted Libraries Aug 2022 · CDN
- added Google Tag Manager Aug 2022 · Tag managers
- added Node.js Aug 2022 · Programming languages
- added OVHcloud Aug 2022 · PaaS
- added Patreon Aug 2022 · Payment processors
- added PayPal Aug 2022 · Payment processors
- dropped Facebook Jun 2022 · Widgets
- added Amazon S3 May 2022 · Miscellaneous
- added Amazon Web Services May 2022 · PaaS
- added Google Hosted Libraries Feb 2022 · CDN
2021 5 added · 1 dropped
- dropped Wheelio Dec 2021 · Widgets
- added Wheelio Sep 2021 · Widgets
- added Google Tag Manager Aug 2021 · Tag managers
- added Patreon Jul 2021 · Widgets
- added PayPal Jul 2021 · Payment processors
- added Facebook Login Jun 2021 · Social logins
2019 9 added · 1 dropped
- dropped CoinHive Nov 2019 · Cryptominer
- added AngularJS Mar 2019 · JavaScript Frameworks
- added CoinHive Mar 2019 · Cryptominer
- added DoubleClick Ad Exchange (AdX) Mar 2019 · Advertising Networks
- added Express Mar 2019 · Web Frameworks
- added Facebook Mar 2019 · Widgets
- added Google AdSense Mar 2019 · Advertising Networks
- added jQuery Mar 2019 · JavaScript Libraries
- added Node.js Mar 2019 · Programming Languages
- added reCAPTCHA Mar 2019 · Captchas
2018 3 added
- added reCAPTCHA Oct 2018 · Captchas
- added Google Analytics Jun 2018 · Analytics
- added PHP Jun 2018 · Programming Languages