Technology history for upsolve.org

2026 1 added

• added TikTok Pixel Apr 2026 · Analytics

2025 7 added · 2 dropped · 1 switched

• added Emotion Nov 2025 · JavaScript frameworks
• dropped PostHog Nov 2025 · Analytics
• added Priority Hints Nov 2025 · Performance
• dropped YouTube Nov 2025 · Video players
• added PDF.js Aug 2025 · Miscellaneous
• switched Facebook Pixel → PostHog Aug 2025 · Analytics
• added Envoy May 2025 · Reverse proxies
• added Facebook Pixel May 2025 · Analytics
• added YouTube May 2025 · Video players
• added Google Tag Manager Jan 2025 · Tag managers

2024 4 added

• added Cloudflare Bot Management Nov 2024 · Security
• added Hotjar Aug 2024 · Analytics
• added lit-element Jun 2024 · JavaScript libraries
• added lit-html Jun 2024 · JavaScript libraries

2023 4 dropped

• dropped Cloudflare Bot Management Sep 2023 · Security
• dropped FullStory Jun 2023 · Analytics
• dropped Segment Jun 2023 · Customer data platform
• dropped Weglot Feb 2023 · Translation

2022 26 added · 4 dropped · 1 switched

• dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
• dropped Envoy Nov 2022 · Reverse proxies
• added HSTS Sep 2022 · Security
• added Open Graph Sep 2022 · Miscellaneous
• added Weglot Sep 2022 · Translation
• added Amazon CloudFront Aug 2022 · CDN
• added Amazon S3 Aug 2022 · Miscellaneous
• added Amazon Web Services Aug 2022 · PaaS
• added Cloudflare Aug 2022 · CDN
• added Cloudflare Bot Management Aug 2022 · Security
• added Cloudflare Network Error Logging Aug 2022 · Issue trackers
• added core-js Aug 2022 · JavaScript libraries
• added Facebook Login Aug 2022 · Authentication
• added FullStory Aug 2022 · Analytics
• added Google Analytics Aug 2022 · Analytics
• added Google Maps Aug 2022 · Maps
• added Google Workspace Aug 2022 · Email
• added jQuery Aug 2022 · JavaScript libraries
• added jQuery CDN Aug 2022 · CDN
• added Lodash Aug 2022 · JavaScript libraries
• added Mailgun Aug 2022 · Email
• added PWA Aug 2022 · Miscellaneous
• added React Aug 2022 · JavaScript frameworks
• added Segment Aug 2022 · Customer data platform
• added styled-components Aug 2022 · JavaScript frameworks
• added Webpack Aug 2022 · Miscellaneous
• added Zendesk Aug 2022 · Issue trackers
• dropped Facebook Jun 2022 · Widgets
• dropped Contentful Mar 2022 · CMS
• switched Sentry → Cloudflare Network Error Logging Feb 2022 · Issue trackers
• added jQuery CDN Feb 2022 · CDN

2021 14 added · 9 dropped · 1 switched

• added Cloudflare Bot Management Dec 2021 · Security
• dropped Babel Nov 2021 · Miscellaneous
• added Contentful Oct 2021 · CMS
• added Envoy Oct 2021 · Reverse proxies
• switched Wheelio → Facebook Oct 2021 · Widgets
• added Facebook Login Oct 2021 · Authentication
• added Wheelio Sep 2021 · Widgets
• added core-js Aug 2021 · JavaScript libraries
• added FullStory Aug 2021 · Analytics
• dropped Contentful Jul 2021 · CMS
• dropped Hotjar Jul 2021 · Analytics
• added Babel Jun 2021 · Miscellaneous
• added Lodash Jun 2021 · JavaScript libraries
• added Sentry Jun 2021 · Issue trackers
• added styled-components Jun 2021 · JavaScript frameworks
• added Zendesk May 2021 · Live chat
• dropped Babel Mar 2021 · Miscellaneous
• dropped Facebook Mar 2021 · Widgets
• dropped Google Tag Manager Mar 2021 · Tag managers
• dropped Lodash Mar 2021 · JavaScript libraries
• dropped Sentry Mar 2021 · Issue trackers
• dropped TinyMCE Mar 2021 · Rich text editors
• added Google Maps Feb 2021 · Maps
• added Hotjar Feb 2021 · Analytics

2020 6 added · 9 dropped

• added TinyMCE Nov 2020 · Rich text editors
• dropped YouTube Oct 2020 · Video players
• dropped Intercom Sep 2020 · Analytics
• added jQuery Aug 2020 · JavaScript libraries
• dropped Zendesk Aug 2020 · CMS
• added Intercom Jul 2020 · Analytics
• added Facebook May 2020 · Widgets
• dropped jQuery Apr 2020 · JavaScript Libraries
• dropped Moment.js Apr 2020 · JavaScript Libraries
• dropped Ruby Apr 2020 · Programming Languages
• dropped Ruby on Rails Apr 2020 · Web Frameworks
• dropped Stripe Apr 2020 · Payment Processors
• added Babel Mar 2020 · Miscellaneous
• added Zendesk Mar 2020 · SaaS
• dropped Hotjar Feb 2020 · Analytics

2019 14 added · 1 dropped · 1 switched

• added Contentful Dec 2019 · CMS
• added Sentry Dec 2019 · Issue Trackers
• added YouTube Dec 2019 · Video Players
• added Hotjar Nov 2019 · Analytics
• added Google Tag Manager Aug 2019 · Tag Managers
• dropped YouTube Jul 2019 · Video Players
• added Amazon CloudFront Mar 2019 · CDN
• added Amazon S3 Mar 2019 · Miscellaneous
• added Amazon Web Services Mar 2019 · PaaS
• added Gatsby Mar 2019 · Static Site Generator
• added Google Analytics Mar 2019 · Analytics
• added Lodash Mar 2019 · JavaScript Libraries
• switched AMP → React Mar 2019 · JavaScript Frameworks
• added Segment Mar 2019 · Analytics
• added Stripe Mar 2019 · Payment Processors
• added Webpack Mar 2019 · Miscellaneous