Technology history for lettern.de
Stack size over time
From 5 detected technologies in May 2020 to 5 in Sep 2026 (peak 6).
Currently detected
- Apache HTTP Server since May 2020
- mod_ssl since May 2020
- OpenSSL since May 2020
- PHP since May 2020
- UNIX since May 2020
Previously used
- Wheelio Sep 2021 to Oct 2021 · 1 mo