Technology history for cals.org
Stack size over time
From 14 detected technologies in Aug 2018 to 33 in Jun 2026 (peak 44).
Currently detected
- Bulma since Aug 2018
- jQuery Migrate since Aug 2018
- jQuery UI since Aug 2018
- MySQL since Aug 2018
- Font Awesome since Aug 2018
- Google Analytics since Aug 2018
- Nginx since Aug 2018
- PHP since Aug 2018
- WooCommerce since Aug 2018
- WordPress since Aug 2018
- Yoast SEO since Aug 2018
- Google Tag Manager since Aug 2018
- jQuery since Aug 2018
- Twitter Emoji (Twemoji) since Aug 2018
- reCAPTCHA since Oct 2018
- WP Engine since Jun 2021
- core-js since Sep 2021
- cdnjs since Nov 2021
- Cloudflare since May 2022
- Microsoft 365 since Aug 2022
- Open Graph since Sep 2022
- Priority Hints since Dec 2023
- Babel since Jan 2024
- Bootstrap since Jan 2024
- Moment.js since Jan 2024
- Typekit since Jan 2024
- Apple iCloud Mail since Feb 2024
- Cloudflare Bot Management since Mar 2024
- HTTP/3 since Mar 2024
- Yoast SEO Premium since Nov 2024
- Bunny since May 2026
- Perfmatters since May 2026
- Sendgrid since May 2026
Previously used
- AppNexus May 2020 to Apr 2026 · 5 yrs
- Cloudflare Turnstile Aug 2025 to Apr 2026 · 8 mo
- Contact Form 7 Feb 2022 to Apr 2026 · 4 yrs
- Facebook Pixel Jun 2021 to Apr 2026 · 4 yrs
- FooPlugins FooGallery Dec 2023 to Apr 2026 · 2 yrs
- Google Font API Aug 2021 to Apr 2026 · 4 yrs
- GTranslate Oct 2022 to Apr 2026 · 3 yrs
- jQuery CDN Feb 2022 to Apr 2026 · 4 yrs
- Lightbox Jul 2022 to Apr 2026 · 3 yrs
- RSS Dec 2022 to Apr 2026 · 3 yrs
- Site Kit Jan 2023 to Apr 2026 · 3 yrs
- theTradeDesk Oct 2021 to Apr 2026 · 4 yrs
- jsDelivr Jan 2024 to Feb 2026 · 2 yrs
- Google Hosted Libraries Jan 2024 to Nov 2025 · 1 yr
- The Events Calendar Jun 2022 to Jul 2025 · 3 yrs
- Lodash May 2024 to May 2024 · 1 mo
- C Feb 2023 to Feb 2023 · 1 mo
- Cart Functionality Aug 2022 to Sep 2022 · 1 mo
- Google Remarketing Tag Jul 2021 to May 2022 · 10 mo
- Facebook Oct 2020 to Apr 2022 · 1 yr
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- YouTube May 2019 to Feb 2021 · 1 yr
- YUI Apr 2020 to Aug 2020 · 4 mo
- WordPress Super Cache Jul 2019 to Sep 2019 · 2 mo
- MediaElement.js Jan 2019 to Jul 2019 · 6 mo
Timeline
2026 3 added · 14 dropped
- dropped AppNexus Jun 2026 · Advertising
- dropped Cloudflare Turnstile Jun 2026 · Security
- dropped Contact Form 7 Jun 2026 · WordPress plugins
- dropped Facebook Pixel Jun 2026 · Analytics
- dropped FooPlugins FooGallery Jun 2026 · WordPress plugins
- dropped Google Font API Jun 2026 · Font scripts
- dropped GTranslate Jun 2026 · WordPress plugins
- dropped jQuery CDN Jun 2026 · CDN
- dropped Lightbox Jun 2026 · JavaScript libraries
- dropped RSS Jun 2026 · Miscellaneous
- dropped Site Kit Jun 2026 · WordPress plugins
- dropped theTradeDesk Jun 2026 · Advertising
- added Bunny May 2026 · CDN
- added Perfmatters May 2026 · WordPress plugins
- added Sendgrid May 2026 · Email
- dropped jsDelivr Apr 2026 · CDN
- dropped Google Hosted Libraries Jan 2026 · CDN
2025 3 added · 2 dropped
- dropped The Events Calendar Sep 2025 · WordPress plugins
- added Cloudflare Turnstile Aug 2025 · Security
- added Cloudflare Bot Management May 2025 · Security
- dropped Cloudflare Bot Management Mar 2025 · Security
- added Cloudflare Bot Management Jan 2025 · Security
2024 5 added · 2 dropped
- added Yoast SEO Premium Nov 2024 · SEO
- dropped Cloudflare Bot Management Jul 2024 · Security
- dropped Lodash Jul 2024 · JavaScript libraries
- added Lodash May 2024 · JavaScript libraries
- added Cloudflare Bot Management Mar 2024 · Security
- added HTTP/3 Mar 2024 · Miscellaneous
- added Apple iCloud Mail Feb 2024 · Webmail
2023 21 added · 1 dropped
- added FooPlugins FooGallery Dec 2023 · WordPress plugins
- added Priority Hints Dec 2023 · Performance
- added AppNexus May 2023 · Advertising
- added cdnjs May 2023 · CDN
- added Cloudflare May 2023 · CDN
- added Contact Form 7 May 2023 · WordPress plugins
- added core-js May 2023 · JavaScript libraries
- added Facebook Pixel May 2023 · Analytics
- added Google Font API May 2023 · Font scripts
- added GTranslate May 2023 · WordPress plugins
- added jQuery CDN May 2023 · CDN
- added Lightbox May 2023 · JavaScript libraries
- added Microsoft 365 May 2023 · Webmail
- added Open Graph May 2023 · Miscellaneous
- added RSS May 2023 · Miscellaneous
- added Site Kit May 2023 · WordPress plugins
- added The Events Calendar May 2023 · WordPress plugins
- added theTradeDesk May 2023 · Advertising
- added WP Engine May 2023 · PaaS
- dropped C Apr 2023 · Programming languages
- added C Feb 2023 · Programming languages
- added Site Kit Jan 2023 · WordPress plugins
2022 22 added · 4 dropped
- dropped Cart Functionality Dec 2022 · Ecommerce
- added RSS Dec 2022 · Miscellaneous
- added GTranslate Oct 2022 · WordPress plugins
- added Contact Form 7 Sep 2022 · WordPress plugins
- added Open Graph Sep 2022 · Miscellaneous
- added AppNexus Aug 2022 · Advertising
- added Cart Functionality Aug 2022 · Ecommerce
- added cdnjs Aug 2022 · CDN
- added Cloudflare Aug 2022 · CDN
- added core-js Aug 2022 · JavaScript libraries
- added Facebook Pixel Aug 2022 · Analytics
- added Google Font API Aug 2022 · Font scripts
- added jQuery CDN Aug 2022 · CDN
- added Lightbox Aug 2022 · JavaScript libraries
- added Microsoft 365 Aug 2022 · Webmail
- added The Events Calendar Aug 2022 · WordPress plugins
- added theTradeDesk Aug 2022 · Advertising
- added WP Engine Aug 2022 · PaaS
- dropped Contact Form 7 Jul 2022 · WordPress plugins
- dropped Google Remarketing Tag Jul 2022 · Retargeting
- added Lightbox Jul 2022 · JavaScript libraries
- dropped Facebook Jun 2022 · Widgets
- added The Events Calendar Jun 2022 · WordPress plugins
- added Cloudflare May 2022 · CDN
- added Contact Form 7 Feb 2022 · WordPress plugins
- added jQuery CDN Feb 2022 · CDN
2021 9 added · 2 dropped
- dropped Wheelio Dec 2021 · Widgets
- added cdnjs Nov 2021 · CDN
- added theTradeDesk Oct 2021 · Advertising
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added Google Font API Aug 2021 · Font scripts
- added Google Remarketing Tag Jul 2021 · Retargeting
- added Facebook Pixel Jun 2021 · Analytics
- added WP Engine Jun 2021 · PaaS
- dropped YouTube Apr 2021 · Video players
- added YouTube Feb 2021 · Video players
2020 4 added · 2 dropped
- dropped YouTube Nov 2020 · Video players
- added Facebook Oct 2020 · Widgets
- dropped YUI Oct 2020 · JavaScript libraries
- added AppNexus May 2020 · Advertising
- added YouTube Apr 2020 · Video Players
- added YUI Apr 2020 · JavaScript Libraries
2019 3 added · 4 dropped
- dropped WordPress Super Cache Nov 2019 · Cache Tools
- dropped MediaElement.js Sep 2019 · Video Players
- added MediaElement.js Jul 2019 · Video Players
- added WordPress Super Cache Jul 2019 · Cache Tools
- dropped YouTube Jul 2019 · Video Players
- added YouTube May 2019 · Video Players
- dropped MediaElement.js Apr 2019 · Video Players
2018 1 added
- added reCAPTCHA Oct 2018 · Captchas