Technology history for loc.gov
Stack size over time
From 2 detected technologies in Apr 2018 to 84 in Jun 2026.
Currently detected
- Cloudflare since Apr 2018
- jQuery since Apr 2018
- Adobe Analytics since Jun 2018
- jQuery UI since Jun 2018
- Mustache since Jun 2018
- Modernizr since Jun 2018
- PHP since Aug 2018
- Bootstrap since Aug 2018
- Apache HTTP Server since Aug 2018
- SWFObject since Aug 2018
- Varnish since Aug 2018
- WordPress since Aug 2018
- MySQL since Aug 2018
- MediaElement.js since Dec 2018
- Google Font API since Jan 2019
- Font Awesome since Feb 2019
- Nginx since Feb 2019
- Leaflet since Aug 2019
- Sentry since Nov 2019
- jQuery Migrate since Mar 2020
- Amazon CloudFront since Jul 2020
- Amazon Web Services since Jul 2020
- Cloudflare Browser Insights since Mar 2021
- Adobe Experience Platform Identity Service since Jun 2021
- Adobe Experience Platform Launch since Jun 2021
- Isotope since Jul 2021
- DreamWeaver since Oct 2021
- Vimeo since Nov 2021
- Cart Functionality since Jan 2022
- jQuery CDN since Feb 2022
- Fourthwall since Feb 2022
- JW Player since Mar 2022
- Google Tag Manager since Apr 2022
- Popper since Apr 2022
- Select2 since Apr 2022
- Adobe Audience Manager since Apr 2022
- Tailwind CSS since Apr 2022
- core-js since Apr 2022
- Google Analytics since Apr 2022
- Amazon S3 since May 2022
- Cloudflare Bot Management since May 2022
- Google Hosted Libraries since Aug 2022
- React since Aug 2022
- cdnjs since Aug 2022
- Java since Aug 2022
- Livefyre since Aug 2022
- Moment.js since Aug 2022
- HSTS since Sep 2022
- Open Graph since Sep 2022
- RSS since Dec 2022
- TypeScript since Dec 2022
- FullCalendar since Dec 2022
- Microsoft ASP.NET since Jan 2023
- Slick since Mar 2023
- Priority Hints since Apr 2023
- Hammer.js since Oct 2024
- Ace since Oct 2024
- Ember.js since Oct 2024
- jsDelivr since Dec 2024
- lit-html since Jan 2025
- Webpack since Jan 2025
- Express since Jan 2025
- Envoy since Jan 2025
- Lodash since Jan 2025
- Next.js since Jan 2025
- Osano since Jan 2025
- Node.js since Jan 2025
- HTTP/3 since Feb 2025
- AccessiBe since Feb 2025
- Swiper since Feb 2025
- Typekit since Feb 2025
- WP Engine since Feb 2025
- Divi since Feb 2025
- Kaltura since Mar 2025
- lit-element since Mar 2025
- Adobe Client Data Layer since Apr 2025
- Prism since Jun 2025
- Splide since Jun 2025
- FancyBox since Jun 2025
- React Router since Sep 2025
- GSAP since Jan 2026
- Next.js App Router since Jan 2026
- Ruby since Mar 2026
- Ruby on Rails since Mar 2026
Previously used
- IIS Apr 2023 to Jan 2026 · 2 yrs
- Windows Server Apr 2023 to Jan 2026 · 2 yrs
- Chart.js Jul 2025 to Dec 2025 · 5 mo
- Adobe DTM Jan 2019 to May 2025 · 6 yrs
- Babel Apr 2022 to Feb 2025 · 2 yrs
- OpenSSL Mar 2020 to Jul 2024 · 4 yrs
- Red Hat Aug 2018 to Jul 2024 · 5 yrs
- C Feb 2023 to Feb 2023 · 1 mo
- Mailgun Aug 2022 to Dec 2022 · 4 mo
- Google Remarketing Tag Apr 2022 to May 2022 · 1 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
Timeline
2026 3 dropped
- dropped IIS Mar 2026 · Web servers
- dropped Windows Server Mar 2026 · Operating systems
- dropped Chart.js Feb 2026 · JavaScript graphics
2025 16 added · 2 dropped
- added IIS Sep 2025 · Web servers
- added Windows Server Sep 2025 · Operating systems
- dropped Adobe DTM Jul 2025 · Tag managers
- added Chart.js Jul 2025 · JavaScript graphics
- added FancyBox Jun 2025 · JavaScript libraries
- added Prism Jun 2025 · Miscellaneous
- added Splide Jun 2025 · JavaScript libraries
- added Adobe Client Data Layer Apr 2025 · JavaScript frameworks
- dropped Babel Apr 2025 · Miscellaneous
- added Kaltura Mar 2025 · Video players
- added lit-element Mar 2025 · JavaScript libraries
- added Envoy Jan 2025 · Reverse proxies
- added lit-html Jan 2025 · JavaScript libraries
- added Lodash Jan 2025 · JavaScript libraries
- added Next.js Jan 2025 · JavaScript frameworks
- added Node.js Jan 2025 · Programming languages
- added Osano Jan 2025 · Cookie compliance
- added Webpack Jan 2025 · Miscellaneous
2024 1 added · 4 dropped
- dropped IIS Dec 2024 · Web servers
- added jsDelivr Dec 2024 · CDN
- dropped Windows Server Dec 2024 · Operating systems
- dropped OpenSSL Sep 2024 · Web server extensions
- dropped Red Hat Sep 2024 · Operating systems
2023 39 added · 4 dropped
- added Amazon CloudFront May 2023 · CDN
- added Babel May 2023 · Miscellaneous
- added Cart Functionality May 2023 · Ecommerce
- added cdnjs May 2023 · CDN
- added Cloudflare Bot Management May 2023 · Security
- added Cloudflare Browser Insights May 2023 · Analytics
- added core-js May 2023 · JavaScript libraries
- added DreamWeaver May 2023 · Editors
- added FullCalendar May 2023 · Widgets
- added Google Analytics May 2023 · Analytics
- added Google Font API May 2023 · Font scripts
- added Google Tag Manager May 2023 · Tag managers
- added IIS May 2023 · Web servers
- added jQuery CDN May 2023 · CDN
- added jQuery Migrate May 2023 · JavaScript libraries
- added JW Player May 2023 · Video players
- added Leaflet May 2023 · Maps
- added Livefyre May 2023 · Comment systems
- dropped Microsoft ASP.NET May 2023 · Web frameworks
- added Moment.js May 2023 · JavaScript libraries
- added MySQL May 2023 · Databases
- added OpenSSL May 2023 · Web server extensions
- added PHP May 2023 · Programming languages
- added Popper May 2023 · Miscellaneous
- added Priority Hints May 2023 · Performance
- added React May 2023 · JavaScript frameworks
- added Red Hat May 2023 · Operating systems
- added RSS May 2023 · Miscellaneous
- added Select2 May 2023 · JavaScript libraries
- added Slick May 2023 · JavaScript libraries
- added SWFObject May 2023 · Miscellaneous
- added TypeScript May 2023 · Programming languages
- added Varnish May 2023 · Caching
- added Vimeo May 2023 · Video players
- added Windows Server May 2023 · Operating systems
- added WordPress May 2023 · CMS
- dropped C Apr 2023 · Programming languages
- added jQuery Migrate Mar 2023 · JavaScript libraries
- added Slick Mar 2023 · JavaScript libraries
- added C Feb 2023 · Programming languages
- dropped Mailgun Feb 2023 · Email
- dropped Google Hosted Libraries Jan 2023 · CDN
- added Microsoft ASP.NET Jan 2023 · Web frameworks
2022 31 added · 4 dropped
- added FullCalendar Dec 2022 · Widgets
- added RSS Dec 2022 · Miscellaneous
- added TypeScript Dec 2022 · Programming languages
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Amazon S3 Aug 2022 · Miscellaneous
- added Babel Aug 2022 · Miscellaneous
- added Cloudflare Bot Management Aug 2022 · Security
- added core-js Aug 2022 · JavaScript libraries
- added DreamWeaver Aug 2022 · Editors
- added Google Analytics Aug 2022 · Analytics
- added Google Tag Manager Aug 2022 · Tag managers
- added Mailgun Aug 2022 · Email
- added MySQL Aug 2022 · Databases
- added Nginx Aug 2022 · Web servers
- added OpenSSL Aug 2022 · Web server extensions
- added PHP Aug 2022 · Programming languages
- added Popper Aug 2022 · Miscellaneous
- added Red Hat Aug 2022 · Operating systems
- added Select2 Aug 2022 · JavaScript libraries
- added Sentry Aug 2022 · Issue trackers
- added Varnish Aug 2022 · Caching
- added Vimeo Aug 2022 · Video players
- added WordPress Aug 2022 · CMS
- dropped Adobe DTM Jul 2022 · Tag managers
- dropped Google Remarketing Tag Jul 2022 · Retargeting
- dropped Tailwind CSS Jun 2022 · UI frameworks
- added Amazon S3 May 2022 · Miscellaneous
- added Cloudflare Bot Management May 2022 · Security
- added Adobe Audience Manager Apr 2022 · Segmentation
- added Popper Apr 2022 · Miscellaneous
- added Fourthwall Feb 2022 · Ecommerce
- added jQuery CDN Feb 2022 · CDN
- added Cart Functionality Jan 2022 · Ecommerce
- dropped Wheelio Jan 2022 · Widgets
2021 7 added · 2 dropped
- added Vimeo Nov 2021 · Video players
- added Wheelio Sep 2021 · Widgets
- added Isotope Jul 2021 · JavaScript libraries
- added Adobe Experience Platform Identity Service Jun 2021 · Analytics
- added Adobe Experience Platform Launch Jun 2021 · Tag managers
- added Cloudflare Browser Insights Jun 2021 · Analytics
- dropped Cloudflare Browser Insights May 2021 · Analytics
- added Cloudflare Browser Insights Mar 2021 · Analytics
- dropped Leaflet Mar 2021 · Maps
2020 1 dropped
- dropped jQuery Migrate Aug 2020 · JavaScript libraries
2019 13 added
- added Sentry Nov 2019 · Issue Trackers
- added Leaflet Aug 2019 · Maps
- added Adobe DTM Mar 2019 · Tag Managers
- added Font Awesome Mar 2019 · Font Scripts
- added Google Font API Mar 2019 · Font Scripts
- added MySQL Mar 2019 · Databases
- added Nginx Mar 2019 · Web Servers
- added PHP Mar 2019 · Programming Languages
- added Red Hat Mar 2019 · Operating Systems
- added SWFObject Mar 2019 · Miscellaneous
- added Varnish Mar 2019 · Cache Tools
- added WordPress Mar 2019 · Blogs
- added Adobe DTM Jan 2019 · Tag Managers
2018 5 added
- added MediaElement.js Dec 2018 · Video Players
- added Adobe Analytics Jun 2018 · Analytics
- added jQuery UI Jun 2018 · JavaScript Frameworks
- added Modernizr Jun 2018 · JavaScript Frameworks
- added Mustache Jun 2018 · JavaScript Frameworks