Technology history for check.so
Stack size over time
From 3 detected technologies in Mar 2021 to 6 in Jun 2026 (peak 7).
Currently detected
- PWA since Aug 2022
- Open Graph since Sep 2022
- Fastly since Mar 2025
- GitHub Pages since Mar 2025
- Cloudflare since Mar 2025
- Varnish since Mar 2025
Previously used
- Amazon CloudFront Feb 2023 to Feb 2025 · 2 yrs
- Amazon Web Services Aug 2022 to Feb 2025 · 2 yrs
- Express Mar 2021 to Feb 2025 · 3 yrs
- HTTP/3 Feb 2023 to Feb 2025 · 2 yrs
- Node.js Mar 2021 to Feb 2025 · 3 yrs
- Amazon ALB Aug 2022 to Jan 2023 · 5 mo
- Nginx Mar 2021 to Jan 2023 · 1 yr
Timeline
2025 3 added · 4 dropped · 1 switched
- dropped Amazon CloudFront Apr 2025 · CDN
- dropped Express Apr 2025 · Web frameworks
- dropped HTTP/3 Apr 2025 · Miscellaneous
- dropped Node.js Apr 2025 · Programming languages
- added Cloudflare Mar 2025 · CDN
- added Fastly Mar 2025 · CDN
- switched Amazon Web Services GitHub Pages Mar 2025 · PaaS
- added Varnish Mar 2025 · Caching
2023 2 added · 2 dropped
- dropped Amazon ALB Mar 2023 · Load balancers
- dropped Nginx Mar 2023 · Web servers
- added Amazon CloudFront Feb 2023 · CDN
- added HTTP/3 Feb 2023 · Miscellaneous
2022 1 added
- added Open Graph Sep 2022 · Miscellaneous