Technology history for 42courses.com
Stack size over time
From 18 detected technologies in Apr 2019 to 45 in Aug 2025 (peak 47).
Currently detected
- Google Font API since Apr 2019
- Google Tag Manager since Apr 2019
- Ruby on Rails since Apr 2019
- Typekit since Apr 2019
- jQuery since Apr 2019
- Google Analytics since Apr 2019
- Lodash since Apr 2019
- Modernizr since Apr 2019
- Ruby since Apr 2019
- Squarespace since Apr 2019
- Stripe since Apr 2019
- Twitter since Apr 2019
- YUI since Apr 2019
- Sentry since Mar 2020
- Heroku since Aug 2020
- Hotjar since Nov 2020
- Linkedin Insight Tag since Feb 2021
- Stimulus since Feb 2021
- Cowboy since Apr 2021
- React since May 2021
- Semantic UI since May 2021
- Animate.css since May 2021
- Twitter Ads since May 2021
- FullStory since Aug 2021
- core-js since Sep 2021
- Facebook Pixel since Oct 2021
- MobX since Oct 2021
- Unpkg since Oct 2021
- Vimeo since Oct 2021
- Wisepops since Oct 2021
- Turbolinks since Jan 2022
- Quora Pixel since Feb 2022
- LottieFiles since Feb 2022
- Squarespace Commerce since Feb 2022
- lit-element since Apr 2022
- lit-html since Apr 2022
- cdnjs since May 2022
- Cloudflare since May 2022
- Cloudflare Bot Management since May 2022
- Google Workspace since Aug 2022
- PWA since Aug 2022
- HSTS since Sep 2022
- Open Graph since Sep 2022
- RSS since Dec 2022
- Erlang since Jan 2023
Previously used
- New Relic Apr 2019 to Mar 2023 · 3 yrs
- Choices Feb 2022 to Dec 2022 · 10 mo
- Java Jan 2022 to Dec 2022 · 11 mo
- Google Ads Conversion Tracking Oct 2021 to Oct 2022 · 1 yr
- Facebook Apr 2019 to Apr 2022 · 3 yrs
- Twitter Analytics May 2021 to Apr 2022 · 11 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- reCAPTCHA Jun 2021 to Jun 2021 · 1 mo
- Amazon Web Services Aug 2020 to Apr 2021 · 8 mo
- jsDelivr Jul 2020 to Apr 2021 · 9 mo
- Moment.js Aug 2019 to Apr 2021 · 1 yr
- parcel Oct 2020 to Jan 2021 · 3 mo
- Webpack Apr 2019 to Aug 2020 · 1 yr
- Varnish Apr 2019 to Jul 2019 · 3 mo
- Envoy Apr 2019 to May 2019 · 1 mo
Timeline
2023 1 added · 2 dropped · 1 switched
- dropped New Relic Jul 2023 · RUM
- dropped Choices Feb 2023 · JavaScript libraries
- switched Java Erlang Jan 2023 · Programming languages
- added Sentry Jan 2023 · Issue trackers
2022 13 added · 3 dropped · 1 switched
- dropped Google Ads Conversion Tracking Dec 2022 · Analytics
- added RSS Dec 2022 · Miscellaneous
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Google Workspace Aug 2022 · Webmail
- added PWA Aug 2022 · Miscellaneous
- dropped Facebook Jun 2022 · Widgets
- added cdnjs May 2022 · CDN
- added Cloudflare May 2022 · CDN
- added Cloudflare Bot Management May 2022 · Security
- added lit-element Apr 2022 · JavaScript libraries
- added lit-html Apr 2022 · JavaScript libraries
- added Choices Feb 2022 · Miscellaneous
- added LottieFiles Feb 2022 · Miscellaneous
- switched Twitter Analytics Quora Pixel Feb 2022 · Analytics
- added Squarespace Commerce Feb 2022 · Ecommerce
- dropped Wheelio Feb 2022 · Widgets
2021 14 added · 11 dropped
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added FullStory Aug 2021 · Analytics
- dropped reCAPTCHA Aug 2021 · Security
- dropped Amazon Web Services Jun 2021 · PaaS
- dropped jsDelivr Jun 2021 · CDN
- added Modernizr Jun 2021 · JavaScript libraries
- dropped Moment.js Jun 2021 · JavaScript libraries
- added reCAPTCHA Jun 2021 · Security
- added YUI Jun 2021 · JavaScript libraries
- added Animate.css May 2021 · UI frameworks
- added React May 2021 · JavaScript libraries
- dropped Ruby May 2021 · Programming languages
- added Semantic UI May 2021 · UI frameworks
- added Twitter Ads May 2021 · Advertising
- added Twitter Analytics May 2021 · Analytics
- added Cowboy Apr 2021 · Web servers
- dropped Lodash Mar 2021 · JavaScript libraries
- dropped Modernizr Mar 2021 · JavaScript libraries
- dropped New Relic Mar 2021 · Analytics
- dropped parcel Mar 2021 · Miscellaneous
- dropped Ruby on Rails Mar 2021 · Web frameworks
- dropped YUI Mar 2021 · JavaScript libraries
- added Linkedin Insight Tag Feb 2021 · Analytics
- added Stimulus Feb 2021 ·
2020 5 added · 1 dropped · 1 switched
- dropped Sentry Dec 2020 · Issue trackers
- added Hotjar Nov 2020 · Analytics
- switched Webpack parcel Oct 2020 · Miscellaneous
- added Amazon Web Services Aug 2020 · PaaS
- added Heroku Aug 2020 · PaaS
- added jsDelivr Jul 2020 · CDN
- added Sentry Mar 2020 · Issue Trackers