Technology history for pdslibrary.org
Stack size over time
From 6 detected technologies in Jul 2020 to 14 in Jun 2026.
Currently detected
- Drupal since Jul 2020
- Google Analytics since Jul 2020
- jQuery since Jul 2020
- PHP since Jul 2020
- Varnish since Jul 2020
- Bootstrap since Aug 2022
- Microsoft 365 since Aug 2022
- Drupal Multisite since Jul 2023
- Lodash since Oct 2023
- Acquia Cloud Platform since Jul 2025
- Amazon Web Services since Jul 2025
- Cloudflare since Nov 2025
- Cloudflare Browser Insights since Nov 2025
- HTTP/3 since Nov 2025
Previously used
- Nginx Jul 2025 to Oct 2025 · 3 mo
- Apache HTTP Server Jul 2020 to Jun 2025 · 4 yrs
- HSTS Sep 2022 to Jun 2025 · 2 yrs
- jsDelivr Aug 2022 to Sep 2023 · 1 yr
- Underscore.js Aug 2022 to Sep 2023 · 1 yr
- Google Tag Manager Aug 2022 to Sep 2022 · 1 mo
Timeline
2025 5 added · 2 dropped · 1 switched
- dropped Nginx Dec 2025 · Web servers
- added Cloudflare Nov 2025 · CDN
- added Cloudflare Browser Insights Nov 2025 · Analytics
- added HTTP/3 Nov 2025 · Miscellaneous
- dropped HSTS Aug 2025 · Security
- added Acquia Cloud Platform Jul 2025 · PaaS
- added Amazon Web Services Jul 2025 · PaaS
- switched Apache HTTP Server Nginx Jul 2025 · Web servers
2023 12 added · 1 dropped · 1 switched
- dropped jsDelivr Nov 2023 · CDN
- switched Underscore.js Lodash Oct 2023 · JavaScript libraries
- added Drupal Multisite Jul 2023 · Hosting
- added Apache HTTP Server May 2023 · Web servers
- added Bootstrap May 2023 · UI frameworks
- added Drupal May 2023 · CMS
- added Google Analytics May 2023 · Analytics
- added HSTS May 2023 · Security
- added jQuery May 2023 · JavaScript libraries
- added jsDelivr May 2023 · CDN
- added Microsoft 365 May 2023 · Webmail
- added PHP May 2023 · Programming languages
- added Underscore.js May 2023 · JavaScript libraries
- added Varnish May 2023 · Caching
2022 1 added · 1 dropped
- dropped Google Tag Manager Dec 2022 · Tag managers
- added HSTS Sep 2022 · Security