Technology history for letsencrypt.org
Stack size over time
From 2 detected technologies in Apr 2018 to 37 in Jun 2026.
Currently detected
- Pure CSS since Apr 2018
- Hugo since Apr 2018
- Google Tag Manager since Jun 2018
- Google Analytics since Jun 2018
- Nginx since Jun 2018
- Ruby since Aug 2018
- Ruby on Rails since Aug 2018
- Discourse since Aug 2018
- Ember.js since Aug 2018
- Font Awesome since Aug 2018
- Moment.js since Aug 2018
- Bootstrap since Aug 2018
- jQuery since Aug 2018
- Netlify since Oct 2019
- Cart Functionality since Jan 2022
- Google Font API since Mar 2022
- Go since Mar 2022
- Caddy since Mar 2022
- PayPal since Apr 2022
- Google Workspace since Aug 2022
- PWA since Aug 2022
- Zendesk since Aug 2022
- MailChimp since Aug 2022
- HSTS since Sep 2022
- Open Graph since Sep 2022
- RSS since Dec 2022
- Cloudflare since Jan 2023
- Salesforce Marketing Cloud Account Engagement since Jan 2024
- HTTP/3 since Sep 2024
- Priority Hints since Sep 2024
- Shopify since Sep 2024
- core-js since Sep 2024
- Boomerang since Sep 2024
- Donorbox since Dec 2024
- Plotly since Apr 2025
- Tailwind CSS since Apr 2025
- D3 since Apr 2025
Previously used
- Amazon S3 Mar 2024 to Apr 2024 · 1 mo
- Amazon Web Services Mar 2024 to Apr 2024 · 1 mo
- C Feb 2023 to Feb 2023 · 1 mo
- Handlebars Aug 2018 to Apr 2022 · 3 yrs
- Lodash Jul 2021 to Mar 2022 · 8 mo
- jQuery UI Jun 2020 to Feb 2022 · 1 yr
- Highlight.js Oct 2020 to Dec 2021 · 1 yr
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Modernizr Aug 2018 to Dec 2018 · 4 mo
Timeline
2025 3 added
- added D3 Apr 2025 · JavaScript graphics
- added Plotly Apr 2025 · JavaScript graphics
- added Tailwind CSS Apr 2025 · UI frameworks
2024 4 added · 2 dropped
- added Donorbox Dec 2024 · Fundraising & donations
- dropped Amazon S3 Jun 2024 · CDN
- dropped Amazon Web Services Jun 2024 · PaaS
- added Amazon S3 Mar 2024 · CDN
- added Amazon Web Services Mar 2024 · PaaS
- added Salesforce Marketing Cloud Account Engagement Jan 2024 · Marketing automation
2023 2 added · 1 dropped
- dropped C Apr 2023 · Programming languages
- added C Feb 2023 · Programming languages
- added Cloudflare Jan 2023 · CDN
2022 9 added · 5 dropped
- added RSS Dec 2022 · Miscellaneous
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Google Workspace Aug 2022 · Email
- added MailChimp Aug 2022 · Marketing automation
- added PWA Aug 2022 · Miscellaneous
- added Zendesk Aug 2022 · Documentation
- dropped Handlebars Jun 2022 · JavaScript frameworks
- dropped Lodash May 2022 · JavaScript libraries
- dropped jQuery UI Apr 2022 · JavaScript libraries
- added PayPal Apr 2022 · Payment processors
- dropped Cart Functionality Mar 2022 · Ecommerce
- dropped Highlight.js Feb 2022 · Miscellaneous
- added Cart Functionality Jan 2022 · Ecommerce
2021 10 added · 9 dropped
- dropped Wheelio Dec 2021 · Widgets
- added Wheelio Sep 2021 · Widgets
- added Discourse Jul 2021 · Message boards
- added Ember.js Jul 2021 · JavaScript frameworks
- added Handlebars Jul 2021 · JavaScript frameworks
- added Highlight.js Jul 2021 · Miscellaneous
- added jQuery UI Jul 2021 · JavaScript libraries
- added Lodash Jul 2021 · JavaScript libraries
- added Moment.js Jul 2021 · JavaScript libraries
- added Ruby Jul 2021 · Programming languages
- added Ruby on Rails Jul 2021 · Web frameworks
- 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
2020 2 added
- added Highlight.js Oct 2020 · Miscellaneous
- added jQuery UI Jun 2020 · JavaScript libraries
2019 8 added · 1 dropped
- added Netlify Oct 2019 · Web Servers
- added Discourse Mar 2019 · Message Boards
- added Ember.js Mar 2019 · JavaScript Frameworks
- added Handlebars Mar 2019 · JavaScript Frameworks
- added jQuery Mar 2019 · JavaScript Libraries
- added Moment.js Mar 2019 · JavaScript Libraries
- added Ruby Mar 2019 · Programming Languages
- added Ruby on Rails Mar 2019 · Web Frameworks
- dropped Modernizr Feb 2019 · JavaScript Libraries
2018 3 added
- added Google Analytics Jun 2018 · Analytics
- added Google Tag Manager Jun 2018 · Tag Managers
- added Nginx Jun 2018 · Web Servers