Technology history for pdfreaders.org
Stack size over time
From 1 detected technologies in Aug 2018 to 3 in Jun 2026.
Currently detected
- Debian since Jan 2019
- Apache HTTP Server since Jan 2019
- HSTS since Sep 2022
Previously used
Timeline
2022 3 added
- added HSTS Sep 2022 · Security
- added Apache HTTP Server Aug 2022 · Web servers
- added Debian Aug 2022 · Operating systems
2021 1 added · 1 dropped
2019 4 added · 1 dropped
- added Apache HTTP Server Mar 2019 · Web Servers
- added Debian Mar 2019 · Operating Systems
- dropped Nginx Feb 2019 · Web Servers
- added Apache HTTP Server Jan 2019 · Web Servers
- added Debian Jan 2019 · Operating Systems