Technology history for spdbooks.org
Stack size over time
From 8 detected technologies in Jan 2021 to 19 in Apr 2026 (peak 20).
Currently detected
- jQuery since Jan 2021
- Google Analytics since Jan 2021
- Cart Functionality since Aug 2022
- Cloudflare since Aug 2022
- jQuery UI since Aug 2022
- Google Hosted Libraries since Aug 2022
- Google Workspace since Aug 2022
- HSTS since Sep 2022
- WordPress since Apr 2024
- Bluehost since Apr 2024
- RSS since Apr 2024
- Endurance Page Cache since Apr 2024
- MySQL since Apr 2024
- Nginx since Apr 2024
- PHP since Apr 2024
- WordPress Site Editor since Jul 2024
- OpenResty since Jun 2025
- Google Cloud CDN since Jul 2025
- Google Cloud since Jul 2025
Previously used
- Google AdSense Jul 2025 to Jul 2025 · 1 mo
- Google Tag Manager Jun 2025 to Jun 2025 · 1 mo
- Microsoft Advertising Jun 2025 to Jun 2025 · 1 mo
- Cloudflare Bot Management Nov 2024 to Nov 2024 · 1 mo
- Twitter Emoji (Twemoji) May 2024 to May 2024 · 1 mo
- cdnjs Aug 2022 to Mar 2024 · 1 yr
- Facebook Login Feb 2022 to Mar 2024 · 2 yrs
- Font Awesome Oct 2022 to Mar 2024 · 1 yr
- IIS Jan 2021 to Mar 2024 · 3 yrs
- jQuery CDN Feb 2022 to Mar 2024 · 2 yrs
- LazySizes Feb 2022 to Mar 2024 · 2 yrs
- Microsoft ASP.NET Jan 2021 to Mar 2024 · 3 yrs
- Modernizr Jan 2021 to Mar 2024 · 3 yrs
- Windows Server Jan 2021 to Mar 2024 · 3 yrs
- Constant Contact Feb 2022 to Jun 2023 · 1 yr
- Facebook Jan 2021 to Apr 2022 · 1 yr
- FlexSlider Jan 2021 to Jan 2021 · 1 mo
Timeline
2025 3 added · 13 dropped
- dropped Google AdSense Dec 2025 · Advertising
- dropped Google Tag Manager Nov 2025 · Tag managers
- dropped Microsoft Advertising Nov 2025 · Advertising
- dropped cdnjs Jul 2025 · CDN
- dropped Facebook Login Jul 2025 · Authentication
- dropped Font Awesome Jul 2025 · Font scripts
- added Google AdSense Jul 2025 · Advertising
- added Google Cloud Jul 2025 · IaaS
- added Google Cloud CDN Jul 2025 · CDN
- dropped IIS Jul 2025 · Web servers
- dropped jQuery CDN Jul 2025 · CDN
- dropped LazySizes Jul 2025 · JavaScript libraries
- dropped Microsoft ASP.NET Jul 2025 · Web frameworks
- dropped Modernizr Jul 2025 · JavaScript libraries
- dropped Windows Server Jul 2025 · Operating systems
- dropped Cloudflare Bot Management Feb 2025 · Security
2024 3 added · 1 dropped
- added Cloudflare Bot Management Nov 2024 · Security
- dropped Twitter Emoji (Twemoji) Jul 2024 · Font scripts
- added WordPress Site Editor Jul 2024 · Page builders
- added Twitter Emoji (Twemoji) May 2024 · Font scripts
2023 18 added · 1 dropped
- dropped Constant Contact Aug 2023 · Marketing automation
- added Cart Functionality May 2023 · Ecommerce
- added cdnjs May 2023 · CDN
- added Cloudflare May 2023 · CDN
- added Constant Contact May 2023 · Marketing automation
- added Facebook Login May 2023 · Authentication
- added Font Awesome May 2023 · Font scripts
- added Google Analytics May 2023 · Analytics
- added Google Hosted Libraries May 2023 · CDN
- added Google Workspace May 2023 · Webmail
- added HSTS May 2023 · Security
- added IIS May 2023 · Web servers
- added jQuery May 2023 · JavaScript libraries
- added jQuery CDN May 2023 · CDN
- added jQuery UI May 2023 · JavaScript libraries
- added LazySizes May 2023 · JavaScript libraries
- added Microsoft ASP.NET May 2023 · Web frameworks
- added Modernizr May 2023 · JavaScript libraries
- added Windows Server May 2023 · Operating systems
2022 14 added · 2 dropped
- added HSTS Sep 2022 · Security
- added cdnjs Aug 2022 · CDN
- added Cloudflare Aug 2022 · CDN
- added Constant Contact Aug 2022 · Marketing automation
- added Facebook Login Aug 2022 · Authentication
- added Google Analytics Aug 2022 · Analytics
- added Google Workspace Aug 2022 · Email
- added IIS Aug 2022 · Web servers
- added jQuery Aug 2022 · JavaScript libraries
- added jQuery CDN Aug 2022 · CDN
- added LazySizes Aug 2022 · JavaScript libraries
- added Microsoft ASP.NET Aug 2022 · Web frameworks
- added Modernizr Aug 2022 · JavaScript libraries
- added Windows Server Aug 2022 · Operating systems
- dropped Facebook Jun 2022 · Widgets
- dropped FlexSlider Mar 2022 · Widgets