Technology history for circleci.com
Stack size over time
From 6 detected technologies in Apr 2018 to 86 in Jun 2026 (peak 90).
Currently detected
- Optimizely since Apr 2018
- Nginx since Apr 2018
- Jekyll since Apr 2018
- Google Tag Manager since Apr 2018
- Segment since Apr 2018
- YouTube since Apr 2018
- AppNexus since Jun 2018
- Bootstrap since Jun 2018
- Marketo since Jun 2018
- Facebook since Jun 2018
- Google Analytics since Jun 2018
- Hotjar since Jun 2018
- Highlight.js since Jun 2018
- jQuery since Jun 2018
- Twitter since Jun 2018
- Moment.js since Aug 2018
- Font Awesome since Aug 2018
- Ember.js since Aug 2018
- Discourse since Aug 2018
- Fastly since Aug 2018
- Google Font API since Aug 2018
- Google Code Prettify since Aug 2018
- Twitter typeahead.js since Aug 2018
- React since Aug 2018
- Ruby on Rails since Aug 2018
- Ruby since Aug 2018
- Webpack since Aug 2018
- Amplitude since Oct 2018
- Cloudflare since Oct 2018
- reCAPTCHA since Nov 2019
- Lodash since Feb 2020
- Sentry since Feb 2020
- Babel since Mar 2020
- Zendesk since Mar 2020
- Atlassian Statuspage since Jul 2020
- jsDelivr since Jul 2020
- Cookiebot since Aug 2020
- Intercom since Sep 2020
- Prism since Nov 2020
- GitHub Pages since Dec 2020
- Varnish since Dec 2020
- Linkedin Insight Tag since Feb 2021
- Microsoft Advertising since Feb 2021
- Node.js since Mar 2021
- Next.js since Mar 2021
- Amazon Web Services since May 2021
- Emotion since Jul 2021
- Datadog since Jul 2021
- Google Ads Conversion Tracking since Jul 2021
- Twitter Ads since Jul 2021
- core-js since Sep 2021
- UserZoom since Sep 2021
- Envoy since Oct 2021
- Cloudflare Bot Management since Nov 2021
- LottieFiles since Feb 2022
- Amazon CloudFront since Jul 2022
- Dropbox since Aug 2022
- DocuSign since Aug 2022
- PWA since Aug 2022
- Open Graph since Sep 2022
- HSTS since Sep 2022
- Contentful since Nov 2022
- Zoominfo since Nov 2022
- 6sense since Dec 2022
- Google Ads since Dec 2022
- RSS since Dec 2022
- Apple iCloud Mail since Jan 2023
- Keybase since Jan 2023
- web-vitals since Mar 2023
- Imgix since Apr 2023
- Qualified since Jun 2023
- Canny since Dec 2023
- Linkedin Ads since Dec 2023
- Priority Hints since Dec 2023
- Stripe since Mar 2024
- HubSpot since Apr 2024
- HubSpot Analytics since Apr 2024
- cdnjs since Jul 2024
- Reddit Ads since Jun 2025
- Angular since Nov 2025
- Google Cloud since Nov 2025
- Google Cloud CDN since Nov 2025
- HTTP/3 since Nov 2025
- Google Cloud Trace since Nov 2025
- TypeScript since Nov 2025
- Zone.js since Nov 2025
Previously used
- MobX Apr 2024 to Apr 2026 · 2 yrs
- Amazon S3 Jul 2022 to Mar 2026 · 3 yrs
- LiveIntent Oct 2024 to Mar 2026 · 1 yr
- Cart Functionality Apr 2021 to Dec 2025 · 4 yrs
- Algolia Jan 2023 to Sep 2025 · 2 yrs
- Matomo Analytics Apr 2024 to Jul 2024 · 3 mo
- Polyfill Dec 2019 to Jun 2024 · 4 yrs
- Sprig Mar 2024 to May 2024 · 2 mo
- Ant Design Sep 2022 to Dec 2023 · 1 yr
- Google Sign-in Sep 2022 to Dec 2023 · 1 yr
- styled-components Sep 2022 to Dec 2023 · 1 yr
- Typekit Sep 2022 to Dec 2023 · 1 yr
- Facebook Pixel Jul 2021 to Nov 2023 · 2 yrs
- Quora Pixel Feb 2022 to Nov 2023 · 1 yr
- Dreamdata Feb 2022 to Sep 2023 · 1 yr
- Drift Jul 2021 to Jun 2023 · 1 yr
- C Feb 2023 to Feb 2023 · 1 mo
- Adobe Audience Manager Jul 2022 to Nov 2022 · 4 mo
- Cloudflare Network Error Logging Feb 2022 to Oct 2022 · 8 mo
- Microsoft Clarity Dec 2021 to Oct 2022 · 10 mo
- Google Remarketing Tag Jul 2021 to May 2022 · 10 mo
- Handlebars Aug 2018 to Apr 2022 · 3 yrs
- jQuery UI Apr 2020 to Feb 2022 · 1 yr
- Engagio Feb 2021 to Oct 2021 · 8 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- TinyMCE Feb 2020 to Jan 2021 · 11 mo
- New Relic Aug 2018 to Oct 2020 · 2 yrs
- Lua Feb 2020 to Aug 2020 · 6 mo
- OpenResty Feb 2020 to Aug 2020 · 6 mo
- Select2 Feb 2020 to Aug 2020 · 6 mo
- Zendesk Chat May 2019 to Jun 2019 · 1 mo
- Modernizr Aug 2018 to Jan 2019 · 5 mo
Timeline
2026 10 dropped
- dropped MobX Jun 2026 · JavaScript libraries
- dropped Amazon S3 May 2026 · CDN
- dropped Ant Design May 2026 · UI frameworks
- dropped Google Sign-in May 2026 · Authentication
- dropped LiveIntent May 2026 · Advertising
- dropped styled-components May 2026 · JavaScript frameworks
- dropped Typekit May 2026 · Font scripts
- dropped Facebook Pixel Apr 2026 · Analytics
- dropped Quora Pixel Apr 2026 · Analytics
- dropped Cart Functionality Feb 2026 · Ecommerce
2025 8 added · 4 dropped
- dropped Algolia Nov 2025 · Search engines
- added Cart Functionality Oct 2025 · Ecommerce
- dropped Cart Functionality Sep 2025 · Ecommerce
- added Cart Functionality Jun 2025 · Ecommerce
- added Reddit Ads Jun 2025 · Advertising
- added Algolia May 2025 · Search engines
- added Envoy May 2025 · Reverse proxies
- dropped Cart Functionality Apr 2025 · Ecommerce
- added MobX Apr 2025 · JavaScript libraries
- dropped MobX Mar 2025 · JavaScript libraries
- added Cart Functionality Feb 2025 · Ecommerce
- added MobX Jan 2025 · JavaScript libraries
2024 8 added · 4 dropped
- dropped MobX Dec 2024 · JavaScript libraries
- added LiveIntent Oct 2024 · Advertising
- dropped Matomo Analytics Oct 2024 · Analytics
- dropped Polyfill Aug 2024 · JavaScript libraries
- added cdnjs Jul 2024 · CDN
- dropped Sprig Jul 2024 · Surveys
- added HubSpot Apr 2024 · Marketing automation
- added HubSpot Analytics Apr 2024 · Analytics
- added Matomo Analytics Apr 2024 · Analytics
- added MobX Apr 2024 · JavaScript libraries
- added Prism Mar 2024 · Miscellaneous
- added Sprig Mar 2024 · Surveys
2023 20 added · 6 dropped · 1 switched
- dropped Dreamdata Nov 2023 · Analytics
- dropped Linkedin Insight Tag Nov 2023 · Analytics
- dropped Sentry Oct 2023 · Issue trackers
- switched Drift Qualified Jun 2023 · Live chat
- added Sentry Jun 2023 · Issue trackers
- added Atlassian Statuspage May 2023 · Issue trackers
- added Babel May 2023 · Miscellaneous
- added Discourse May 2023 · Message boards
- added Ember.js May 2023 · JavaScript frameworks
- added Font Awesome May 2023 · Font scripts
- added Google Code Prettify May 2023 · Miscellaneous
- added jsDelivr May 2023 · CDN
- added Lodash May 2023 · JavaScript libraries
- added Moment.js May 2023 · JavaScript libraries
- added Polyfill May 2023 · JavaScript libraries
- added Twitter Ads May 2023 · Advertising
- added Twitter typeahead.js May 2023 · JavaScript libraries
- added web-vitals May 2023 · JavaScript libraries
- dropped C Apr 2023 · Programming languages
- added Imgix Apr 2023 · CDN
- dropped Algolia Mar 2023 · Search engines
- added web-vitals Mar 2023 · JavaScript libraries
- added C Feb 2023 · Programming languages
- dropped Adobe Audience Manager Jan 2023 · Segmentation
- added Algolia Jan 2023 · Search engines
- added Apple iCloud Mail Jan 2023 · Webmail
- added Keybase Jan 2023 · Security
2022 49 added · 6 dropped · 2 switched
- added 6sense Dec 2022 · Marketing automation
- dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
- added Google Ads Dec 2022 · Advertising
- added RSS Dec 2022 · Miscellaneous
- added Contentful Nov 2022 · CMS
- dropped Prism Nov 2022 · Miscellaneous
- switched Microsoft Clarity Zoominfo Nov 2022 · Analytics
- dropped Envoy Oct 2022 · Reverse proxies
- added HSTS Sep 2022 · Security
- added Open Graph Sep 2022 · Miscellaneous
- added Adobe Audience Manager Aug 2022 · Segmentation
- added Amazon CloudFront Aug 2022 · CDN
- added Amazon S3 Aug 2022 · Miscellaneous
- added Amazon Web Services Aug 2022 · PaaS
- added Amplitude Aug 2022 · Analytics
- added Atlassian Statuspage Aug 2022 · Issue trackers
- added Babel Aug 2022 · Miscellaneous
- added Cloudflare Aug 2022 · CDN
- added Cloudflare Bot Management Aug 2022 · Security
- added Cloudflare Network Error Logging Aug 2022 · Issue trackers
- added Cookiebot Aug 2022 · Cookie compliance
- added Datadog Aug 2022 · RUM
- added Discourse Aug 2022 · Message boards
- added DocuSign Aug 2022 · Miscellaneous
- added Dreamdata Aug 2022 · Analytics
- added Drift Aug 2022 · Live chat
- added Dropbox Aug 2022 · Digital asset management
- added Ember.js Aug 2022 · JavaScript frameworks
- added Emotion Aug 2022 · JavaScript frameworks
- added Facebook Pixel Aug 2022 · Analytics
- added Font Awesome Aug 2022 · Font scripts
- added Google Ads Conversion Tracking Aug 2022 · Analytics
- added Google Code Prettify Aug 2022 · Miscellaneous
- added jsDelivr Aug 2022 · CDN
- added Linkedin Insight Tag Aug 2022 · Analytics
- added Lodash Aug 2022 · JavaScript libraries
- added LottieFiles Aug 2022 · Miscellaneous
- added Microsoft Advertising Aug 2022 · Advertising
- added Microsoft Clarity Aug 2022 · Analytics
- added Moment.js Aug 2022 · JavaScript libraries
- added Next.js Aug 2022 · Web frameworks
- added Node.js Aug 2022 · Programming languages
- added Polyfill Aug 2022 · JavaScript libraries
- added PWA Aug 2022 · Miscellaneous
- added Quora Pixel Aug 2022 · Analytics
- added Twitter Ads Aug 2022 · Advertising
- added Twitter typeahead.js Aug 2022 · JavaScript libraries
- added UserZoom Aug 2022 · A/B Testing
- added Zendesk Aug 2022 · Issue trackers
- dropped Google Remarketing Tag Jul 2022 · Retargeting
- dropped Handlebars Jun 2022 · JavaScript frameworks
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
- added Dreamdata Feb 2022 · Analytics
- dropped Engagio Feb 2022 · Analytics
- added LottieFiles Feb 2022 · Miscellaneous
- switched jQuery UI Polyfill Feb 2022 · JavaScript libraries
- added Quora Pixel Feb 2022 · Analytics
2021 29 added · 14 dropped
- added Microsoft Clarity Dec 2021 · Analytics
- dropped Wheelio Dec 2021 · Widgets
- added Cloudflare Bot Management Nov 2021 · Security
- added Envoy Oct 2021 · Reverse proxies
- dropped Polyfill Oct 2021 · JavaScript libraries
- added core-js Sep 2021 · JavaScript libraries
- added UserZoom Sep 2021 · A/B Testing
- added Wheelio Sep 2021 · Widgets
- added Babel Jul 2021 · Miscellaneous
- added Datadog Jul 2021 · RUM
- added Discourse Jul 2021 · Message boards
- added Drift Jul 2021 · Live chat
- added Ember.js Jul 2021 · JavaScript frameworks
- added Emotion Jul 2021 · Development
- added Facebook Pixel Jul 2021 · Analytics
- added Google Ads Conversion Tracking Jul 2021 · Analytics
- added Google Code Prettify Jul 2021 · Miscellaneous
- added Google Remarketing Tag Jul 2021 · Retargeting
- added Handlebars Jul 2021 · JavaScript frameworks
- added jQuery UI Jul 2021 · JavaScript libraries
- added Lodash Jul 2021 · JavaScript libraries
- added Moment.js Jul 2021 · JavaScript libraries
- added Prism Jul 2021 · Miscellaneous
- added Twitter Ads Jul 2021 · Advertising
- added Twitter typeahead.js Jul 2021 · JavaScript libraries
- dropped Cart Functionality Jun 2021 ·
- added Amazon Web Services May 2021 · PaaS
- added Zendesk May 2021 · CMS
- added Cart Functionality Apr 2021 ·
- dropped Babel Mar 2021 · Miscellaneous
- dropped Discourse Mar 2021 · Message boards
- dropped Ember.js Mar 2021 · JavaScript frameworks
- dropped Google Code Prettify Mar 2021 · Miscellaneous
- dropped Handlebars Mar 2021 · JavaScript frameworks
- dropped jQuery UI Mar 2021 · JavaScript libraries
- dropped Lodash Mar 2021 · JavaScript libraries
- dropped Moment.js Mar 2021 · JavaScript libraries
- dropped Prism Mar 2021 · Miscellaneous
- dropped TinyMCE Mar 2021 · Rich text editors
- dropped Twitter typeahead.js Mar 2021 · JavaScript libraries
- added Engagio Feb 2021 · Analytics
- added Linkedin Insight Tag Feb 2021 · Analytics
- added Microsoft Advertising Feb 2021 · Analytics
2020 9 added · 7 dropped
- dropped New Relic Dec 2020 · Analytics
- added Prism Nov 2020 · Miscellaneous
- dropped Lua Oct 2020 · Programming languages
- dropped OpenResty Oct 2020 · Web servers
- dropped Select2 Oct 2020 · JavaScript libraries
- dropped Sentry Oct 2020 · Issue trackers
- added TinyMCE Oct 2020 · Rich text editors
- added Intercom Sep 2020 · Analytics
- added Cookiebot Aug 2020 · Cookie compliance
- dropped Zendesk Aug 2020 · CMS
- added Atlassian Statuspage Jul 2020 · Issue trackers
- added jsDelivr Jul 2020 · CDN
- added jQuery UI Apr 2020 · JavaScript Libraries
- dropped TinyMCE Apr 2020 · Rich Text Editors
- added Babel Mar 2020 · Miscellaneous
- added Zendesk Mar 2020 · SaaS
2019 13 added · 1 dropped · 1 switched
- added Polyfill Dec 2019 · JavaScript Libraries
- added reCAPTCHA Nov 2019 · Captchas
- dropped Zendesk Chat Aug 2019 · Live Chat
- added Zendesk Chat May 2019 · Live Chat
- added Amplitude Mar 2019 · Analytics
- added Cloudflare Mar 2019 · CDN
- added Discourse Mar 2019 · Message Boards
- added Ember.js Mar 2019 · JavaScript Frameworks
- added Font Awesome Mar 2019 · Font Scripts
- added Google Font API Mar 2019 · Font Scripts
- added Handlebars Mar 2019 · JavaScript Frameworks
- switched Modernizr Moment.js Mar 2019 · JavaScript Libraries
- added React Mar 2019 · JavaScript Frameworks
- added Ruby Mar 2019 · Programming Languages
- added Ruby on Rails Mar 2019 · Web Frameworks
2018 11 added
- added Amplitude Oct 2018 · Analytics
- added Cloudflare Oct 2018 · CDN
- added AppNexus Jun 2018 · Advertising Networks
- added Bootstrap Jun 2018 · Web Frameworks
- added Facebook Jun 2018 · Widgets
- added Google Analytics Jun 2018 · Analytics
- added Highlight.js Jun 2018 · Miscellaneous
- added Hotjar Jun 2018 · Analytics
- added jQuery Jun 2018 · JavaScript Frameworks
- added Marketo Jun 2018 · Marketing Automation
- added Twitter Jun 2018 · Widgets