Technology history for prfree.org
Stack size over time
From 4 detected technologies in Apr 2018 to 26 in Jun 2026.
Currently detected
- Cloudflare since Apr 2018
- jQuery since Apr 2018
- Google Analytics since Jun 2018
- Statcounter since Jun 2018
- Bootstrap since Apr 2019
- jQuery Migrate since Apr 2019
- Select2 since Apr 2019
- Font Awesome since Jul 2020
- Cloudflare Browser Insights since Feb 2021
- Google AdSense since Feb 2021
- Google Tag Manager since Sep 2021
- reCAPTCHA since Apr 2022
- Popper since Apr 2022
- toastr since Apr 2022
- HTTP/3 since Sep 2022
- Cloudflare Rocket Loader since Nov 2022
- RSS since Feb 2023
- Funding Choices since Apr 2024
- Microsoft Clarity since Aug 2025
- Umami since Aug 2025
- Google Font API since May 2026
- cdnjs since May 2026
- Cloudflare Turnstile since May 2026
- jsDelivr since May 2026
- Zoho Mail since May 2026
- Zoho since May 2026
Previously used
- 51.LA Mar 2023 to Jul 2025 · 2 yrs
- Cloudflare Bot Management Dec 2021 to Dec 2024 · 3 yrs
- Snowplow Analytics Sep 2024 to Dec 2024 · 3 mo
- Cloudflare Network Error Logging Feb 2022 to Oct 2022 · 8 mo
- CNZZ Feb 2021 to Jul 2022 · 1 yr
- Tailwind CSS Apr 2022 to Apr 2022 · 1 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Clicky Apr 2019 to Aug 2019 · 4 mo
- AddThis Apr 2018 to Jul 2018 · 3 mo
- jQuery UI Apr 2018 to Jul 2018 · 3 mo
Timeline
2025 2 added · 3 dropped
- dropped 51.LA Sep 2025 · Analytics
- added Microsoft Clarity Aug 2025 · Analytics
- added Umami Aug 2025 · Analytics
- dropped Cloudflare Bot Management May 2025 · Security
- dropped Snowplow Analytics May 2025 · Analytics
2024 3 added · 1 dropped
- added Snowplow Analytics Dec 2024 · Analytics
- dropped Snowplow Analytics Nov 2024 · Analytics
- added Snowplow Analytics Sep 2024 · Analytics
- added Funding Choices Apr 2024 · Cookie compliance
2023 5 added · 2 dropped
- added Google Tag Manager Oct 2023 · Tag managers
- dropped Google Tag Manager Sep 2023 · Tag managers
- added Google Tag Manager Jun 2023 · Tag managers
- dropped Google Tag Manager Apr 2023 · Tag managers
- added 51.LA Mar 2023 · Analytics
- added Google Tag Manager Feb 2023 · Tag managers
- added RSS Feb 2023 · Miscellaneous
2022 21 added · 5 dropped · 1 switched
- dropped Cloudflare Browser Insights Dec 2022 · Analytics
- dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
- dropped Google Tag Manager Dec 2022 · Tag managers
- dropped CNZZ Sep 2022 · Analytics
- added HTTP/3 Sep 2022 · Miscellaneous
- switched Tailwind CSS Bootstrap Aug 2022 · UI frameworks
- added Cloudflare Aug 2022 · CDN
- added Cloudflare Bot Management Aug 2022 · Security
- added Cloudflare Browser Insights Aug 2022 · Analytics
- added Cloudflare Network Error Logging Aug 2022 · Issue trackers
- added Google AdSense Aug 2022 · Advertising
- added Google Analytics Aug 2022 · Analytics
- added Google Tag Manager Aug 2022 · Tag managers
- added jQuery Aug 2022 · JavaScript libraries
- added jQuery Migrate Aug 2022 · JavaScript libraries
- added Popper Aug 2022 · Miscellaneous
- added reCAPTCHA Aug 2022 · Security
- added Select2 Aug 2022 · JavaScript libraries
- added Statcounter Aug 2022 · Analytics
- added toastr Aug 2022 · JavaScript frameworks
- added Google Tag Manager Jul 2022 · Tag managers
- dropped Google Tag Manager May 2022 · Tag managers
- added Popper Apr 2022 · Miscellaneous
- added reCAPTCHA Apr 2022 · Security
- added Tailwind CSS Apr 2022 · UI frameworks
- added toastr Apr 2022 · JavaScript frameworks
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
2021 7 added · 3 dropped
- added Cloudflare Bot Management Dec 2021 · Security
- added Google Tag Manager Dec 2021 · Tag managers
- dropped Wheelio Dec 2021 · Widgets
- dropped Google Tag Manager Nov 2021 · Tag managers
- added Google Tag Manager Sep 2021 · Tag managers
- added Wheelio Sep 2021 · Widgets
- dropped Font Awesome Mar 2021 · Font scripts
- added Cloudflare Browser Insights Feb 2021 · Analytics
- added CNZZ Feb 2021 · Analytics
- added Google AdSense Feb 2021 · Advertising
2020 1 added
- added Font Awesome Jul 2020 · Font scripts
2019 3 dropped
- dropped Clicky Oct 2019 · Analytics
- dropped AddThis May 2019 · Widgets
- dropped jQuery UI May 2019 · JavaScript Frameworks
2018 2 added
- added Google Analytics Jun 2018 · Analytics
- added Statcounter Jun 2018 · Analytics