Technology history for feldsteins.com
Stack size over time
From 20 detected technologies in Mar 2021 to 63 in Aug 2026.
Currently detected
- Underscore.js since Mar 2021
- Animate.css since Mar 2021
- Bootstrap since Mar 2021
- Cart Functionality since Mar 2021
- Font Awesome since Mar 2021
- Facebook since Mar 2021
- Google Font API since Mar 2021
- Google Analytics since Mar 2021
- Google Tag Manager since Mar 2021
- jQuery since Mar 2021
- jQuery Migrate since Mar 2021
- jQuery UI since Mar 2021
- Magento since Mar 2021
- Moment.js since Mar 2021
- MySQL since Mar 2021
- Nginx since Mar 2021
- PHP since Mar 2021
- Slick since Mar 2021
- RequireJS since Mar 2021
- core-js since Sep 2021
- Google Ads Conversion Tracking since Sep 2021
- Facebook Login since Sep 2021
- FancyBox since Sep 2021
- Google Call Conversion Tracking since Sep 2021
- Google Remarketing Tag since Sep 2021
- React since Sep 2021
- styled-components since Sep 2021
- Preact since Nov 2021
- HulkApps Form Builder since Jul 2022
- cdnjs since Jul 2022
- Cloudflare since Jul 2022
- LazySizes since Jul 2022
- Apple Pay since Jul 2022
- Modernizr since Jul 2022
- PayPal since Jul 2022
- Popper since Jul 2022
- Shopify since Jul 2022
- Shop Pay since Jul 2022
- Shopify Product Reviews since Jul 2022
- Isotope since Jul 2022
- Affirm since Jul 2022
- UserWay since Jul 2022
- GoDaddy since Aug 2022
- Open Graph since Sep 2022
- HSTS since Sep 2022
- HTTP/3 since Sep 2022
- Priority Hints since Feb 2023
- Amazon S3 since May 2024
- Amazon Web Services since May 2024
- Sentry since Oct 2024
- MobX since Dec 2024
- Facebook Pixel since Jan 2025
- Cloudflare Bot Management since Jan 2025
- Klaviyo since Feb 2025
- Vue.js since Jun 2025
- Lucky Orange since Aug 2025
- Lodash since Nov 2025
- Bunny since Dec 2025
- FlippingBook since Dec 2025
- Element UI since Aug 2026
- lit-element since Aug 2026
- lit-html since Aug 2026
- Reputon since Aug 2026
Previously used
- Yett Nov 2025 to Nov 2025 · 1 mo
- YouTube Jul 2022 to Nov 2025 · 3 yrs
- Boomerang Jul 2022 to Jan 2025 · 2 yrs
- Google Hosted Libraries Jul 2022 to Oct 2024 · 2 yrs
- Envoy Apr 2024 to Apr 2024 · 1 mo
- Cloudflare Network Error Logging Aug 2022 to Oct 2022 · 2 mo
- Podium Sep 2021 to Nov 2021 · 2 mo
- Wheelio Sep 2021 to Sep 2021 · 1 mo
- Polyfill Mar 2021 to May 2021 · 2 mo
Timeline
2026 2 dropped
2025 10 added
- added Bunny Dec 2025 · CDN
- added FlippingBook Dec 2025 · Widgets
- added Lodash Nov 2025 · JavaScript libraries
- added Preact Nov 2025 · JavaScript libraries
- added Yett Nov 2025 · Cookie compliance
- added Lucky Orange Aug 2025 · Analytics
- added Vue.js Jun 2025 · JavaScript frameworks
- added Klaviyo Feb 2025 · Marketing automation
- added Cloudflare Bot Management Jan 2025 · Security
- added Facebook Pixel Jan 2025 · Analytics
2024 4 added · 2 dropped · 1 switched
- dropped Google Hosted Libraries Dec 2024 · CDN
- switched Boomerang MobX Dec 2024 · JavaScript libraries
- added Sentry Oct 2024 · Issue trackers
- dropped Envoy Jun 2024 · Reverse proxies
- added Amazon S3 May 2024 · CDN
- added Amazon Web Services May 2024 · PaaS
- added Envoy Apr 2024 · Reverse proxies
2023 1 added
- added Priority Hints Feb 2023 · Performance
2022 23 added · 5 dropped
- dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
- added HSTS Sep 2022 · Security
- added HTTP/3 Sep 2022 · Miscellaneous
- added Open Graph Sep 2022 · Miscellaneous
- added Affirm Aug 2022 · Payment processors
- added Apple Pay Aug 2022 · Payment processors
- added Boomerang Aug 2022 · JavaScript libraries
- added cdnjs Aug 2022 · CDN
- added Cloudflare Aug 2022 · CDN
- added Cloudflare Network Error Logging Aug 2022 · Issue trackers
- added core-js Aug 2022 · JavaScript libraries
- added GoDaddy Aug 2022 · Hosting
- added Google Hosted Libraries Aug 2022 · CDN
- added HulkApps Form Builder Aug 2022 · Shopify apps
- added Isotope Aug 2022 · JavaScript libraries
- added LazySizes Aug 2022 · JavaScript libraries
- added Modernizr Aug 2022 · JavaScript libraries
- added PayPal Aug 2022 · Payment processors
- added Popper Aug 2022 · Miscellaneous
- added Shop Pay Aug 2022 · Payment processors
- added Shopify Aug 2022 · Ecommerce
- added Shopify Product Reviews Aug 2022 · Reviews
- added UserWay Aug 2022 · Accessibility
- added YouTube Aug 2022 · Video players
- dropped core-js Feb 2022 · JavaScript libraries
- dropped Podium Feb 2022 · Live chat
- dropped Preact Feb 2022 · JavaScript libraries
- dropped Wheelio Jan 2022 · Widgets
2021 1 dropped
- dropped Polyfill Nov 2021 · JavaScript libraries