Technology history for kayak.com
Stack size over time
From 7 detected technologies in Jun 2018 to 88 in Jun 2026.
Currently detected
- Google Analytics since Jun 2018
- Moment.js since Jun 2018
- AngularJS since Jun 2018
- Varnish since Jun 2018
- Webpack since Jul 2018
- MySQL since Feb 2019
- Nginx since Feb 2019
- Amazon Web Services since Feb 2019
- Apache HTTP Server since Feb 2019
- jQuery since Feb 2019
- Google Maps since Feb 2019
- Google Tag Manager since Feb 2019
- PHP since Feb 2019
- WordPress since Feb 2019
- Yoast SEO since Feb 2019
- Hotjar since Apr 2019
- Unbounce since Apr 2019
- YouTube since Apr 2019
- Fastly since May 2019
- Twitter Emoji (Twemoji) since Jun 2019
- jQuery Migrate since Nov 2019
- Angular since Oct 2020
- Zone.js since Oct 2020
- Google Sign-in since Feb 2021
- OneTrust since Mar 2021
- TypeScript since Jun 2021
- Lodash since Jul 2021
- core-js since Sep 2021
- Bootstrap since Dec 2021
- Cloudflare since Dec 2021
- Twitter typeahead.js since Dec 2021
- Yandex.Metrika since Dec 2021
- Cloudflare Network Error Logging since Feb 2022
- React since Feb 2022
- Sentry since Feb 2022
- SiteGround since Feb 2022
- styled-components since Feb 2022
- Microsoft Advertising since May 2022
- DocuSign since Aug 2022
- Forter since Aug 2022
- Facebook Pixel since Aug 2022
- FullStory since Aug 2022
- DoubleClick for Publishers (DFP) since Aug 2022
- Mustache since Aug 2022
- Microsoft Clarity since Aug 2022
- Loadable-Components since Aug 2022
- Google Cloud since Aug 2022
- Google Publisher Tag since Aug 2022
- Google Workspace since Aug 2022
- Google Cloud CDN since Aug 2022
- Scala since Aug 2022
- Play since Aug 2022
- Ramda since Aug 2022
- Vue.js since Aug 2022
- Zendesk since Aug 2022
- Open Graph since Sep 2022
- HSTS since Sep 2022
- HTTP/3 since Sep 2022
- Apple iCloud Mail since Jan 2023
- Stripe since May 2023
- Amazon S3 since Jul 2023
- Azure Edge Network since Jul 2023
- Imperva since Jul 2023
- Tailwind CSS since Aug 2023
- Funding Choices since Feb 2024
- Google AdSense since Mar 2024
- GetFeedback since Jun 2024
- reCAPTCHA since Sep 2024
- React Router since Nov 2024
- Envoy since Mar 2025
- Caddy since Mar 2025
- PayPal since Jul 2025
- Next.js App Router since Sep 2025
- Node.js since Sep 2025
- Next.js since Sep 2025
- Priority Hints since Sep 2025
- Datadog since Oct 2025
- Prism since Nov 2025
- Turbopack since Dec 2025
- LottieFiles since Jan 2026
- Cloudinary since Jan 2026
- Radix UI since Jan 2026
- Segment since Jan 2026
- Vercel since Jan 2026
- Vercel Speed Insights since Jan 2026
- Base UI since Apr 2026
- Osano since May 2026
- lit-html since May 2026
Previously used
- RxJS Apr 2026 to Apr 2026 · 1 mo
- OpenResty Aug 2022 to Feb 2025 · 2 yrs
- Adjust Mar 2024 to Dec 2024 · 9 mo
- Baidu Analytics (百度统计) Jul 2020 to Jul 2024 · 4 yrs
- FusionCharts Feb 2023 to Jun 2024 · 1 yr
- jQuery UI Aug 2022 to Jun 2024 · 1 yr
- Knockout.js Aug 2022 to Jun 2024 · 1 yr
- Adform Dec 2022 to Nov 2023 · 11 mo
- Cloudflare Bot Management Jun 2023 to Sep 2023 · 3 mo
- C Feb 2023 to Feb 2023 · 1 mo
- IIS Aug 2022 to Aug 2022 · 1 mo
- Microsoft ASP.NET Aug 2022 to Aug 2022 · 1 mo
- Windows Server Aug 2022 to Aug 2022 · 1 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Cart Functionality Aug 2020 to Apr 2021 · 8 mo
- Facebook Jun 2018 to Mar 2021 · 2 yrs
- Google Plus Jun 2018 to Mar 2021 · 2 yrs
- Underscore.js Feb 2019 to Oct 2019 · 8 mo
- Usabilla Jul 2019 to Jul 2019 · 1 mo
- Amazon CloudFront Feb 2019 to Mar 2019 · 1 mo
- webpack-2 Jun 2018 to Jun 2018 · 1 mo
Timeline
2026 5 added · 1 dropped
- dropped RxJS Jun 2026 · JavaScript frameworks
- added lit-html May 2026 · JavaScript libraries
- added Osano May 2026 · Cookie compliance
- added Base UI Apr 2026 · UI frameworks
- added RxJS Apr 2026 · JavaScript frameworks
- added LottieFiles Jan 2026 · Miscellaneous
2025 9 added · 2 dropped · 1 switched
- added Turbopack Dec 2025 · Development
- added Prism Nov 2025 · Miscellaneous
- added Datadog Oct 2025 · RUM
- dropped Tailwind CSS Oct 2025 · UI frameworks
- added Next.js Sep 2025 · JavaScript frameworks
- added Next.js App Router Sep 2025 · JavaScript frameworks
- added Node.js Sep 2025 · Programming languages
- added Priority Hints Sep 2025 · Performance
- added PayPal Jul 2025 · Payment processors
- switched OpenResty Caddy Mar 2025 · Web servers
- added Envoy Mar 2025 · Reverse proxies
- dropped Adjust Feb 2025 · Analytics
2024 6 added · 6 dropped · 2 switched
- added reCAPTCHA Dec 2024 · Security
- added HTTP/3 Nov 2024 · Miscellaneous
- switched Knockout.js React Router Nov 2024 · JavaScript frameworks
- dropped reCAPTCHA Nov 2024 · Security
- dropped HTTP/3 Oct 2024 · Miscellaneous
- dropped Baidu Analytics (百度统计) Sep 2024 · Analytics
- added reCAPTCHA Sep 2024 · Security
- dropped FusionCharts Aug 2024 · JavaScript graphics
- added Google AdSense Aug 2024 · Advertising
- dropped jQuery UI Aug 2024 · JavaScript libraries
- dropped Google AdSense Jun 2024 · Advertising
- added Adjust Mar 2024 · Analytics
- switched Adform Google AdSense Mar 2024 · Advertising
- added Funding Choices Feb 2024 · Cookie compliance
2023 7 added · 2 dropped
- dropped Cloudflare Bot Management Nov 2023 · Security
- added Tailwind CSS Aug 2023 · UI frameworks
- added Cloudflare Bot Management Jun 2023 · Security
- added Stripe May 2023 · Payment processors
- dropped C Apr 2023 · Programming languages
- added C Feb 2023 · Programming languages
- added FusionCharts Feb 2023 · JavaScript graphics
- added Apple iCloud Mail Jan 2023 · Webmail
- added OneTrust Jan 2023 · Cookie compliance
2022 14 added · 5 dropped
- added Adform Dec 2022 · Advertising
- dropped IIS Nov 2022 · Web servers
- dropped Microsoft ASP.NET Nov 2022 · Web frameworks
- dropped Windows Server Nov 2022 · Operating systems
- added HSTS Sep 2022 · Security
- added HTTP/3 Sep 2022 · Miscellaneous
- added Open Graph Sep 2022 · Miscellaneous
- added DocuSign Aug 2022 · Miscellaneous
- added Google Workspace Aug 2022 · Webmail
- added Zendesk Aug 2022 · Documentation
- added Microsoft Advertising May 2022 · Advertising
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
- added Lodash Feb 2022 · JavaScript libraries
- added React Feb 2022 · JavaScript frameworks
- added Sentry Feb 2022 · Issue trackers
- added SiteGround Feb 2022 · Hosting
- added styled-components Feb 2022 · Development
- dropped Lodash Jan 2022 · JavaScript libraries
- dropped OneTrust Jan 2022 · Cookie compliance
2021 7 added · 6 dropped
- dropped Wheelio Dec 2021 · Widgets
- added OneTrust Oct 2021 · Cookie compliance
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added Lodash Jul 2021 · JavaScript libraries
- dropped OneTrust Jul 2021 · Cookie compliance
- dropped Cart Functionality Jun 2021 · Ecommerce
- added TypeScript Jun 2021 · Programming languages
- dropped Facebook May 2021 · Widgets
- dropped Google Plus May 2021 · Widgets
- dropped Moment.js Mar 2021 · JavaScript libraries
- added OneTrust Mar 2021 · Cookie compliance
- added Google Sign-in Feb 2021 · Social logins
2020 4 added
- added Angular Oct 2020 · JavaScript frameworks
- added Zone.js Oct 2020 · JavaScript frameworks
- added Cart Functionality Aug 2020 · Ecommerce
- added Baidu Analytics (百度统计) Jul 2020 · Analytics
2019 24 added · 2 dropped · 2 switched
- switched Underscore.js jQuery Migrate Nov 2019 · JavaScript Libraries
- dropped Usabilla Sep 2019 · Issue Trackers
- added Usabilla Jul 2019 · Issue Trackers
- added Twitter Emoji (Twemoji) Jun 2019 · Miscellaneous
- dropped Amazon Web Services May 2019 · PaaS
- switched Amazon CloudFront Fastly May 2019 · CDN
- added Hotjar Apr 2019 · Analytics
- added Unbounce Apr 2019 · Editors
- added YouTube Apr 2019 · Video Players
- added Amazon CloudFront Mar 2019 · CDN
- added Amazon Web Services Mar 2019 · PaaS
- added AngularJS Mar 2019 · JavaScript Frameworks
- added Apache HTTP Server Mar 2019 · Web Servers
- added Facebook Mar 2019 · Widgets
- added Google Analytics Mar 2019 · Analytics
- added Google Maps Mar 2019 · Maps
- added Google Plus Mar 2019 · Widgets
- added Google Tag Manager Mar 2019 · Tag Managers
- added jQuery Mar 2019 · JavaScript Libraries
- added Moment.js Mar 2019 · JavaScript Libraries
- added MySQL Mar 2019 · Databases
- added Nginx Mar 2019 · Web Servers
- added PHP Mar 2019 · Programming Languages
- added Underscore.js Mar 2019 · JavaScript Libraries
- added Varnish Mar 2019 · Cache Tools
- added Webpack Mar 2019 · Miscellaneous
- added WordPress Mar 2019 · Blogs
- added Yoast SEO Mar 2019 · SEO