Technology history for debuggingbook.org

Stack size over time

From 12 detected technologies in May 2021 to 13 in Jun 2026 (peak 15).

Currently detected

• Google Font API since May 2021
• RequireJS since May 2021
• Fastly since May 2021
• Font Awesome since May 2021
• GitHub Pages since May 2021
• MathJax since May 2021
• jQuery since May 2021
• Varnish since May 2021
• YouTube since May 2021
• Open Graph since Oct 2022
• PWA since Oct 2022
• cdnjs since Oct 2022
• Cloudflare since Oct 2022

Previously used

• Twitter May 2021 to Oct 2023 · 2 yrs
• Twitter Ads Oct 2022 to Oct 2023 · 1 yr
• Bootstrap May 2021 to May 2021 · 1 mo
• Ruby on Rails May 2021 to May 2021 · 1 mo

Timeline