Technology history for cliffsnotes.com
Stack size over time
From 4 detected technologies in Apr 2018 to 47 in Jun 2026 (peak 48).
Currently detected
- jQuery since Apr 2018
- Microsoft ASP.NET since Apr 2018
- Sitecore since Apr 2018
- ZURB Foundation since Apr 2018
- Adobe Analytics since Jun 2018
- Google Analytics since Jun 2018
- Modernizr since Jun 2018
- Windows Server since Jun 2018
- DoubleClick for Publishers (DFP) since Jun 2018
- Google AdSense since Jun 2018
- Google Tag Manager since Jun 2018
- IIS since Jun 2018
- jQuery UI since Jun 2018
- Adobe DTM since Jan 2019
- Amazon CloudFront since Sep 2021
- Amazon S3 since Sep 2021
- Amazon Web Services since Sep 2021
- MailChimp since Sep 2021
- Google Remarketing Tag since Sep 2021
- Eloqua since Nov 2021
- Google Hosted Libraries since Feb 2022
- Cowboy since Apr 2022
- New Relic since Apr 2022
- Java since Apr 2022
- React since Apr 2022
- reCAPTCHA since Apr 2022
- Quantcast Choice since May 2022
- Quantcast Measure since May 2022
- Google Workspace since Aug 2022
- HSTS since Sep 2022
- OneTrust since Sep 2022
- Zendesk since Mar 2023
- PHP since Nov 2023
- Amazon SES since Apr 2024
- Cloudflare since May 2024
- Envoy since May 2024
- Amplitude since Jun 2024
- LazySizes since Jun 2024
- Loadable-Components since Jun 2024
- Tailwind CSS since Jun 2024
- Unpkg since Jun 2024
- Headless UI since Jun 2024
- core-js since Sep 2024
- styled-components since Oct 2024
- Priority Hints since Nov 2024
- Cloudflare Bot Management since Dec 2024
- Sift since Mar 2025
Previously used
- Imperva May 2024 to Jul 2025 · 1 yr
- Nginx Sep 2024 to Sep 2024 · 1 mo
- OpenResty Sep 2024 to Sep 2024 · 1 mo
- Heroku May 2024 to May 2024 · 1 mo
- Erlang Jan 2023 to Apr 2024 · 1 yr
- Google Optimize Dec 2022 to Nov 2023 · 11 mo
- Hotjar Aug 2022 to Nov 2023 · 1 yr
- Sendgrid Aug 2022 to Mar 2023 · 7 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- Akamai Jun 2018 to Aug 2021 · 3 yrs
- Google Publisher Tag Feb 2021 to Aug 2021 · 6 mo
Timeline
2025 2 added · 3 dropped
- dropped Imperva Sep 2025 · CDN
- added Envoy May 2025 · Reverse proxies
- added Sift Mar 2025 · Analytics
- dropped Nginx Jan 2025 · Web servers
- dropped OpenResty Jan 2025 · Web servers
2024 13 added · 5 dropped
- added Priority Hints Nov 2024 · Performance
- added styled-components Oct 2024 · JavaScript frameworks
- dropped Envoy Sep 2024 · Reverse proxies
- dropped Heroku Jul 2024 · PaaS
- added Amplitude Jun 2024 · Analytics
- dropped Erlang Jun 2024 · Programming languages
- added Headless UI Jun 2024 · UI frameworks
- added LazySizes Jun 2024 · JavaScript libraries
- added Loadable-Components Jun 2024 · JavaScript libraries
- added Tailwind CSS Jun 2024 · UI frameworks
- added Unpkg Jun 2024 · CDN
- added Cloudflare May 2024 · CDN
- added Envoy May 2024 · Reverse proxies
- added Heroku May 2024 · PaaS
- added Imperva May 2024 · CDN
- added Amazon SES Apr 2024 · Email
- dropped Google Optimize Jan 2024 · A/B Testing
- dropped Hotjar Jan 2024 · Analytics
2023 10 added · 2 dropped
- added PHP Nov 2023 · Programming languages
- added Zendesk Jul 2023 · Documentation
- added Erlang May 2023 · Programming languages
- added Google Optimize May 2023 · A/B Testing
- added Google Workspace May 2023 · Webmail
- added Hotjar May 2023 · Analytics
- added HSTS May 2023 · Security
- added OneTrust May 2023 · Cookie compliance
- dropped Sendgrid May 2023 · Email
- dropped Zendesk May 2023 · Documentation
- added Zendesk Mar 2023 · Documentation
- added Erlang Jan 2023 · Programming languages
2022 14 added
- added Google Optimize Dec 2022 · A/B Testing
- added HSTS Sep 2022 · Security
- added OneTrust Sep 2022 · Cookie compliance
- added Google Workspace Aug 2022 · Email
- added Hotjar Aug 2022 · Analytics
- added Sendgrid Aug 2022 · Email
- added Quantcast Choice May 2022 · Cookie compliance
- added Quantcast Measure May 2022 · Analytics
- added Cowboy Apr 2022 · Web servers
- added Java Apr 2022 · Programming languages
- added New Relic Apr 2022 · Analytics
- added React Apr 2022 · JavaScript frameworks
- added reCAPTCHA Apr 2022 · Security
- added Google Hosted Libraries Feb 2022 · CDN
2021 7 added · 2 dropped · 1 switched
- dropped Wheelio Dec 2021 · Widgets
- added Eloqua Nov 2021 · Marketing automation
- dropped Google Publisher Tag Oct 2021 · Advertising
- switched Akamai Amazon CloudFront Sep 2021 · CDN
- added Amazon S3 Sep 2021 · Miscellaneous
- added Amazon Web Services Sep 2021 · PaaS
- added Google Remarketing Tag Sep 2021 · Retargeting
- added MailChimp Sep 2021 · Marketing automation
- added Wheelio Sep 2021 · Widgets
- added Google Publisher Tag Feb 2021 · Advertising
2019 16 added
- added Adobe Analytics Mar 2019 · Analytics
- added Adobe DTM Mar 2019 · Tag Managers
- added Akamai Mar 2019 · CDN
- added DoubleClick for Publishers (DFP) Mar 2019 · Advertising Networks
- added Google AdSense Mar 2019 · Advertising Networks
- added Google Analytics Mar 2019 · Analytics
- added Google Tag Manager Mar 2019 · Tag Managers
- added IIS Mar 2019 · Web Servers
- added jQuery Mar 2019 · JavaScript Libraries
- added jQuery UI Mar 2019 · JavaScript Libraries
- added Microsoft ASP.NET Mar 2019 · Web Frameworks
- added Modernizr Mar 2019 · JavaScript Libraries
- added Sitecore Mar 2019 · CMS
- added Windows Server Mar 2019 · Operating Systems
- added ZURB Foundation Mar 2019 · Web Frameworks
- added Adobe DTM Jan 2019 · Tag Managers
2018 10 added
- added Adobe Analytics Jun 2018 · Analytics
- added Akamai Jun 2018 · CDN
- added DoubleClick for Publishers (DFP) Jun 2018 · Advertising Networks
- added Google AdSense Jun 2018 · Advertising Networks
- added Google Analytics Jun 2018 · Analytics
- added Google Tag Manager Jun 2018 · Tag Managers
- added IIS Jun 2018 · Web Servers
- added jQuery UI Jun 2018 · JavaScript Frameworks
- added Modernizr Jun 2018 · JavaScript Frameworks
- added Windows Server Jun 2018 · Operating Systems