Technology history for letterschool.com
Stack size over time
From 10 detected technologies in Nov 2021 to 13 in Jun 2026.
Currently detected
- Google Analytics since Nov 2021
- Google Font API since Nov 2021
- Google Tag Manager since Nov 2021
- jQuery since Nov 2021
- Webflow since Nov 2021
- Google Hosted Libraries since Feb 2022
- Open Graph since Sep 2022
- Adjust since Oct 2022
- Cloudflare since Oct 2024
- HTTP/3 since Nov 2024
- HSTS since Jan 2025
- Webpack since May 2025
- reCAPTCHA since Jan 2026
Previously used
- Cloudflare Bot Management Oct 2024 to Dec 2024 · 2 mo
- core-js Nov 2021 to Dec 2024 · 3 yrs
- Nginx Nov 2021 to Nov 2022 · 1 yr
- OpenResty Nov 2021 to Nov 2022 · 1 yr
- Varnish Nov 2021 to Nov 2022 · 1 yr
- Fastly May 2022 to Aug 2022 · 3 mo
- Google Remarketing Tag Nov 2021 to May 2022 · 6 mo
Timeline
2026 1 added
- added reCAPTCHA Jan 2026 · Security
2025 1 added · 1 dropped · 1 switched
- added Webpack May 2025 · Miscellaneous
- dropped core-js Feb 2025 · JavaScript libraries
- switched Cloudflare Bot Management HSTS Jan 2025 · Security
2024 3 added
- added HTTP/3 Nov 2024 · Miscellaneous
- added Cloudflare Oct 2024 · CDN
- added Cloudflare Bot Management Oct 2024 · Security
2023 3 dropped
- dropped Nginx Jan 2023 · Web servers
- dropped OpenResty Jan 2023 · Web servers
- dropped Varnish Jan 2023 · Caching
2022 3 added · 2 dropped
- dropped Fastly Nov 2022 · CDN
- added Open Graph Sep 2022 · Miscellaneous
- dropped Google Remarketing Tag Jul 2022 · Retargeting
- added Fastly May 2022 · CDN
- added Google Hosted Libraries Feb 2022 · CDN