Technology history for freepdfbook.com
Stack size over time
From 5 detected technologies in Apr 2018 to 23 in May 2026 (peak 30).
Currently detected
- WordPress since Apr 2018
- Cloudflare since Apr 2018
- Google AdSense since Apr 2018
- Google Font API since Apr 2018
- Twitter Emoji (Twemoji) since Jun 2018
- jQuery since Jun 2018
- jQuery Migrate since Jun 2018
- Google Analytics since Jun 2018
- MySQL since Jun 2018
- PHP since Jun 2018
- Google Tag Manager since Feb 2019
- Yoast SEO since Jul 2021
- reCAPTCHA since Apr 2022
- Litespeed Cache since Aug 2022
- Open Graph since Sep 2022
- RSS since Dec 2022
- HTTP/3 since Mar 2023
- Site Kit since Jun 2023
- Hammer.js since Aug 2023
- Select2 since Aug 2023
- Underscore.js since Sep 2023
- Complianz since Sep 2023
- Cloudflare Browser Insights since Nov 2025
Previously used
- core-js Sep 2021 to Nov 2023 · 2 yrs
- Ezoic Sep 2023 to Nov 2023 · 2 mo
- Jetpack Feb 2022 to Nov 2023 · 1 yr
- Quantcast Measure Sep 2023 to Nov 2023 · 2 mo
- React Jun 2018 to Nov 2023 · 5 yrs
- Swiper Mar 2023 to Nov 2023 · 8 mo
- web-vitals Sep 2023 to Nov 2023 · 2 mo
- Cloudflare Rocket Loader Oct 2022 to Sep 2023 · 11 mo
- Amazon ALB Mar 2023 to Aug 2023 · 5 mo
- Amazon Web Services Mar 2023 to Aug 2023 · 5 mo
- Lodash Aug 2023 to Aug 2023 · 1 mo
- Neve Jun 2023 to Jun 2023 · 1 mo
- Yoast SEO Premium Feb 2022 to May 2023 · 1 yr
- Cloudflare Network Error Logging Feb 2022 to Oct 2022 · 8 mo
- Priority Hints Sep 2022 to Sep 2022 · 1 mo
- Choices Feb 2022 to Jul 2022 · 5 mo
- jQuery Modal Apr 2022 to Jul 2022 · 3 mo
- WP Rocket Jul 2020 to Jul 2022 · 2 yrs
- Google Remarketing Tag Aug 2021 to Feb 2022 · 6 mo
- W3 Total Cache Apr 2018 to Feb 2022 · 3 yrs
- Tawk.to Jul 2021 to Dec 2021 · 5 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Apache HTTP Server Jul 2020 to Apr 2021 · 9 mo
- Ubuntu Jul 2020 to Apr 2021 · 9 mo
- Nginx Mar 2019 to Jun 2020 · 1 yr
- Facebook Feb 2019 to May 2020 · 1 yr
Timeline
2026 1 added
- added Twitter Emoji (Twemoji) Jan 2026 · Font scripts
2025 1 added
- added Cloudflare Browser Insights Nov 2025 · Analytics
2024 6 added · 8 dropped
- added Litespeed Cache Dec 2024 · Caching
- dropped core-js Nov 2024 · JavaScript libraries
- dropped Ezoic Nov 2024 · Analytics
- dropped Jetpack Nov 2024 · WordPress plugins
- dropped Quantcast Measure Nov 2024 · Analytics
- dropped React Nov 2024 · JavaScript frameworks
- dropped Swiper Nov 2024 · JavaScript libraries
- dropped web-vitals Nov 2024 · JavaScript libraries
- added Google AdSense Jul 2024 · Advertising
- added Google Tag Manager Jul 2024 · Tag managers
- dropped Litespeed Cache Jul 2024 · Caching
- added reCAPTCHA Jul 2024 · Security
- added Google Analytics Jun 2024 · Analytics
- added Litespeed Cache May 2024 · Caching
2023 16 added · 16 dropped
- dropped Cloudflare Rocket Loader Nov 2023 · Performance
- dropped Amazon ALB Oct 2023 · Load balancers
- dropped Amazon Web Services Oct 2023 · PaaS
- dropped Google AdSense Oct 2023 · Advertising
- dropped Google Analytics Oct 2023 · Analytics
- dropped Google Tag Manager Oct 2023 · Tag managers
- dropped Litespeed Cache Oct 2023 · Caching
- dropped Lodash Oct 2023 · JavaScript libraries
- dropped Neve Oct 2023 · WordPress themes
- dropped reCAPTCHA Oct 2023 · Security
- added Complianz Sep 2023 · WordPress plugins
- added Underscore.js Sep 2023 · JavaScript libraries
- dropped Yoast SEO Premium Sep 2023 · SEO
- added Amazon ALB Aug 2023 · Load balancers
- added Amazon Web Services Aug 2023 · PaaS
- added Google Tag Manager Aug 2023 · Tag managers
- added Hammer.js Aug 2023 · JavaScript libraries
- added Lodash Aug 2023 · JavaScript libraries
- added Select2 Aug 2023 · JavaScript libraries
- dropped Cloudflare Network Error Logging Jul 2023 · Issue trackers
- dropped Google Tag Manager Jul 2023 · Tag managers
- dropped Twitter Emoji (Twemoji) Jul 2023 · Font scripts
- added Neve Jun 2023 · WordPress themes
- added Site Kit Jun 2023 · WordPress plugins
- dropped Amazon ALB May 2023 · Load balancers
- dropped Amazon Web Services May 2023 · PaaS
- added Amazon ALB Mar 2023 · Load balancers
- added Amazon Web Services Mar 2023 · PaaS
- added core-js Mar 2023 · JavaScript libraries
- added HTTP/3 Mar 2023 · Miscellaneous
- added React Mar 2023 · JavaScript frameworks
- added Swiper Mar 2023 · JavaScript libraries
2022 10 added · 6 dropped · 3 switched
- added RSS Dec 2022 · Miscellaneous
- switched Priority Hints Cloudflare Rocket Loader Oct 2022 · Performance
- dropped Choices Sep 2022 · JavaScript libraries
- dropped jQuery Modal Sep 2022 · JavaScript libraries
- added Open Graph Sep 2022 · Miscellaneous
- added Priority Hints Sep 2022 · Performance
- switched WP Rocket Litespeed Cache Aug 2022 · WordPress plugins
- added Twitter Emoji (Twemoji) Aug 2022 · Font scripts
- dropped Google Remarketing Tag Apr 2022 · Retargeting
- added jQuery Modal Apr 2022 · JavaScript libraries
- added reCAPTCHA Apr 2022 · Security
- dropped Twitter Emoji (Twemoji) Apr 2022 · Font scripts
- added Choices Feb 2022 · Miscellaneous
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
- dropped core-js Feb 2022 · JavaScript libraries
- added Jetpack Feb 2022 · WordPress plugins
- dropped Tawk.to Feb 2022 · Live chat
- switched W3 Total Cache WP Rocket Feb 2022 · Caching
- added Yoast SEO Premium Feb 2022 · SEO
2021 11 added · 7 dropped
- dropped Wheelio Dec 2021 · Widgets
- added W3 Total Cache Nov 2021 · Caching
- added Yoast SEO Nov 2021 · SEO
- dropped W3 Total Cache Oct 2021 · Caching
- dropped Yoast SEO Oct 2021 · SEO
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added Google Remarketing Tag Aug 2021 · Retargeting
- added Google Tag Manager Jul 2021 · Tag managers
- added Tawk.to Jul 2021 · Live chat
- added Twitter Emoji (Twemoji) Jul 2021 · Font scripts
- added Yoast SEO Jul 2021 · SEO
- dropped Apache HTTP Server Jun 2021 · Web servers
- dropped Google Tag Manager Jun 2021 · Tag managers
- dropped Ubuntu Jun 2021 · Operating systems
- added Cloudflare May 2021 · CDN
- dropped Twitter Emoji (Twemoji) Mar 2021 · Miscellaneous
- added W3 Total Cache Jan 2021 · Caching
2020 3 added · 4 dropped
- dropped WP Rocket Sep 2020 · Caching
- dropped Nginx Aug 2020 · Reverse proxies
- dropped React Aug 2020 · JavaScript frameworks
- added Apache HTTP Server Jul 2020 · Web servers
- dropped Facebook Jul 2020 · Widgets
- added Ubuntu Jul 2020 · Operating systems
- added WP Rocket Jul 2020 · Caching
2019 15 added · 1 dropped
- dropped Cloudflare Apr 2019 · CDN
- added Facebook Mar 2019 · Widgets
- added Google AdSense Mar 2019 · Advertising Networks
- added Google Analytics Mar 2019 · Analytics
- added Google Font API Mar 2019 · Font Scripts
- added Google Tag Manager Mar 2019 · Tag Managers
- added jQuery Mar 2019 · JavaScript Libraries
- added jQuery Migrate Mar 2019 · JavaScript Libraries
- added MySQL Mar 2019 · Databases
- added Nginx Mar 2019 · Web Servers
- added PHP Mar 2019 · Programming Languages
- added React Mar 2019 · JavaScript Frameworks
- added Twitter Emoji (Twemoji) Mar 2019 · Miscellaneous
- added WordPress Mar 2019 · CMS
- added Facebook Feb 2019 · Widgets
- added Google Tag Manager Feb 2019 · Tag Managers
2018 7 added · 1 dropped
- added Google Analytics Jun 2018 · Analytics
- added jQuery Jun 2018 · JavaScript Frameworks
- added jQuery Migrate Jun 2018 · JavaScript Frameworks
- added MySQL Jun 2018 · Databases
- added PHP Jun 2018 · Programming Languages
- added React Jun 2018 · JavaScript Frameworks
- added Twitter Emoji (Twemoji) Jun 2018 · Miscellaneous
- dropped W3 Total Cache Jun 2018 · Cache Tools