Technology history for observablehq.com
Stack size over time
From 3 detected technologies in Jan 2019 to 33 in Jun 2026.
Currently detected
- Google Analytics since Jan 2019
- React since Jan 2019
- Cloudflare since Jan 2019
- Moment.js since May 2020
- Ruby on Rails since May 2020
- Discourse since May 2020
- Ember.js since May 2020
- jQuery since May 2020
- Nginx since May 2020
- Ruby since May 2020
- Sentry since Sep 2020
- Next.js since Oct 2021
- Node.js since Oct 2021
- Webpack since Oct 2021
- Tailwind CSS since Apr 2022
- PWA since Aug 2022
- Google Workspace since Aug 2022
- HSTS since Sep 2022
- Open Graph since Sep 2022
- Sendgrid since Jan 2023
- web-vitals since Mar 2023
- Microsoft Clarity since Apr 2023
- Contentful since Apr 2023
- Stripe since Apr 2023
- SparkPost since Jul 2023
- Linkedin Insight Tag since Sep 2023
- Priority Hints since Dec 2023
- Google Font API since Sep 2024
- Cloudflare Bot Management since Nov 2024
- Radix UI since Jan 2025
- GSAP since Aug 2025
- core-js since Apr 2026
- RSS since May 2026
Previously used
- Heroku Aug 2020 to Sep 2025 · 5 yrs
- C Feb 2023 to Feb 2023 · 1 mo
- Wheelio Sep 2021 to Sep 2021 · 1 mo
- Handlebars May 2020 to Aug 2021 · 1 yr
- Highlight.js Sep 2020 to Aug 2021 · 11 mo
- jQuery UI May 2020 to Aug 2021 · 1 yr
- Lodash Jun 2021 to Aug 2021 · 2 mo
- Amazon Web Services Aug 2020 to Apr 2021 · 8 mo
Timeline
2026 4 added · 2 dropped
- added Cloudflare Bot Management Jun 2026 · Security
- added Priority Hints May 2026 · Performance
- added RSS May 2026 · Miscellaneous
- added core-js Apr 2026 · JavaScript libraries
- dropped Heroku Jan 2026 · PaaS
- dropped Priority Hints Jan 2026 · Performance
2025 3 added · 1 dropped
- dropped Cloudflare Bot Management Dec 2025 · Security
- added GSAP Aug 2025 · JavaScript frameworks
- added Priority Hints May 2025 · Performance
- added Radix UI Jan 2025 · UI frameworks
2024 3 added · 1 dropped
- added Cloudflare Bot Management Nov 2024 · Security
- added Google Font API Sep 2024 · Font scripts
- added Tailwind CSS Aug 2024 · UI frameworks
- dropped Priority Hints Mar 2024 · Performance
2023 20 added · 1 switched
- added Priority Hints Dec 2023 · Performance
- added Linkedin Insight Tag Sep 2023 · Analytics
- added SparkPost Jul 2023 · Email
- added Contentful May 2023 · CMS
- added Google Workspace May 2023 · Email
- added Heroku May 2023 · PaaS
- added HSTS May 2023 · Security
- added Microsoft Clarity May 2023 · Analytics
- added Next.js May 2023 · JavaScript frameworks
- switched C Node.js May 2023 · Programming languages
- added Open Graph May 2023 · Miscellaneous
- added Sendgrid May 2023 · Email
- added Sentry May 2023 · Issue trackers
- added Stripe May 2023 · Payment processors
- added Webpack May 2023 · Miscellaneous
- added Contentful Apr 2023 · CMS
- added Microsoft Clarity Apr 2023 · Analytics
- added Stripe Apr 2023 · Payment processors
- added web-vitals Mar 2023 · JavaScript libraries
- added C Feb 2023 · Programming languages
- added Sendgrid Jan 2023 · Email
2022 17 added · 5 dropped
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Discourse Aug 2022 · Message boards
- added Ember.js Aug 2022 · JavaScript frameworks
- added Google Workspace Aug 2022 · Webmail
- added Heroku Aug 2022 · PaaS
- added jQuery Aug 2022 · JavaScript libraries
- added Moment.js Aug 2022 · JavaScript libraries
- added Next.js Aug 2022 · Web frameworks
- added Nginx Aug 2022 · Web servers
- added Node.js Aug 2022 · Programming languages
- added PWA Aug 2022 · Miscellaneous
- added Ruby Aug 2022 · Programming languages
- added Ruby on Rails Aug 2022 · Web frameworks
- added Sentry Aug 2022 · Issue trackers
- added Webpack Aug 2022 · Miscellaneous
- dropped Tailwind CSS Jun 2022 · UI frameworks
- added Tailwind CSS Apr 2022 · UI frameworks
- dropped Handlebars Mar 2022 · JavaScript frameworks
- dropped Highlight.js Mar 2022 · Miscellaneous
- dropped jQuery UI Mar 2022 · JavaScript libraries
- dropped Lodash Mar 2022 · JavaScript libraries
2021 5 added · 11 dropped
- dropped Wheelio Nov 2021 · Widgets
- added Next.js Oct 2021 · Web servers
- added Node.js Oct 2021 · Programming languages
- added Webpack Oct 2021 · Miscellaneous
- added Wheelio Sep 2021 · Widgets
- added Sentry Jul 2021 · Issue trackers
- dropped Amazon Web Services Jun 2021 · PaaS
- dropped Discourse Mar 2021 · Message boards
- dropped Ember.js Mar 2021 · JavaScript frameworks
- dropped Handlebars Mar 2021 · JavaScript frameworks
- dropped Highlight.js Mar 2021 · Miscellaneous
- dropped jQuery UI Mar 2021 · JavaScript libraries
- dropped Moment.js Mar 2021 · JavaScript libraries
- dropped Ruby Mar 2021 · Programming languages
- dropped Ruby on Rails Mar 2021 · Web frameworks
- dropped Sentry Mar 2021 · Issue trackers
2020 4 added
- added Highlight.js Sep 2020 · Miscellaneous
- added Sentry Sep 2020 · Issue trackers
- added Amazon Web Services Aug 2020 · PaaS
- added Heroku Aug 2020 · PaaS