Technology history for vdaf.org
Stack size over time
From 15 detected technologies in Jan 2019 to 16 in Jun 2026 (peak 18).
Currently detected
- Bootstrap since Jan 2019
- jQuery since Jan 2019
- Font Awesome since Jan 2019
- Google Analytics since Jan 2019
- PHP since Jan 2019
- Statcounter since Jan 2019
- Google Tag Manager since Jan 2019
- Amazon ALB since Sep 2021
- Amazon Web Services since Sep 2021
- Constant Contact since Sep 2021
- jQuery CDN since Jun 2022
- DonorPerfect since Feb 2023
- Joomla since Dec 2023
- LiteSpeed since Dec 2024
- HSTS since Dec 2024
- HTTP/3 since Dec 2024
Previously used
- Nginx Apr 2020 to Nov 2025 · 5 yrs
- OpenResty Nov 2025 to Nov 2025 · 1 mo
- jQuery Migrate Jan 2019 to Nov 2023 · 4 yrs
- C Feb 2023 to Feb 2023 · 1 mo
- Cloudflare Nov 2021 to Nov 2021 · 1 mo
- Cloudflare Bot Management Nov 2021 to Nov 2021 · 1 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Apache HTTP Server Jan 2019 to Mar 2020 · 1 yr
- OpenSSL Jan 2019 to Jun 2019 · 5 mo
- Apache Tomcat Jan 2019 to May 2019 · 4 mo
- Java Jan 2019 to May 2019 · 4 mo
- mod_jk Jan 2019 to May 2019 · 4 mo
- mod_ssl Jan 2019 to May 2019 · 4 mo
- UNIX Jan 2019 to May 2019 · 4 mo
Timeline
2025 1 dropped · 2 switched
- switched OpenResty Nginx Nov 2025 · Web servers
- switched Nginx OpenResty Nov 2025 · Web servers
- dropped Nginx Jan 2025 · Web servers
2024 3 added · 1 dropped
- added HSTS Dec 2024 · Security
- added HTTP/3 Dec 2024 · Miscellaneous
- added LiteSpeed Dec 2024 · Web servers
- dropped jQuery Migrate Jan 2024 · JavaScript libraries
2023 4 added · 1 dropped
- added Joomla Dec 2023 · CMS
- added PHP Dec 2023 · Programming languages
- dropped C Apr 2023 · Programming languages
- added C Feb 2023 · Programming languages
- added DonorPerfect Feb 2023 · Fundraising & donations
2022 3 dropped
- dropped Cloudflare Jul 2022 · CDN
- dropped Cloudflare Bot Management Jul 2022 · Security
- dropped Wheelio Jun 2022 · Widgets
2021 6 added
- added Cloudflare Nov 2021 · CDN
- added Cloudflare Bot Management Nov 2021 · Security
- added Amazon ALB Sep 2021 · Load balancers
- added Amazon Web Services Sep 2021 · PaaS
- added Constant Contact Sep 2021 · Marketing automation
- added Wheelio Sep 2021 · Widgets
2020 1 added · 8 dropped
- dropped Apache HTTP Server May 2020 · Web Servers
- added Nginx Apr 2020 · Reverse Proxy
- dropped OpenSSL Apr 2020 · Web Server Extensions
- dropped Apache Tomcat Mar 2020 · Web Servers
- dropped Java Mar 2020 · Programming Languages
- dropped mod_jk Mar 2020 · Web Server Extensions
- dropped mod_ssl Mar 2020 · Web Server Extensions
- dropped PHP Mar 2020 · Programming Languages
- dropped UNIX Mar 2020 · Operating Systems