Technology history for course-notes.org
Stack size over time
From 3 detected technologies in Apr 2018 to 26 in Jun 2026 (peak 51).
Currently detected
- Cloudflare since Apr 2018
- comScore since Apr 2018
- Drupal since Apr 2018
- DoubleClick for Publishers (DFP) since Jun 2018
- Google AdSense since Jun 2018
- Google Analytics since Jun 2018
- PHP since Jun 2018
- Quantcast Measure since Jun 2018
- Criteo since Jun 2018
- Facebook since Jun 2018
- Google Tag Manager since Jun 2018
- jQuery since Jun 2018
- jQuery UI since Jun 2018
- Prebid since Jun 2018
- Lodash since Jul 2018
- Sovrn since Jun 2021
- Drupal Multisite since Apr 2022
- SparkPost since Aug 2022
- Google Workspace since Aug 2022
- MailChimp since Aug 2022
- HSTS since Sep 2022
- HTTP/3 since Sep 2022
- Ahrefs since Jun 2023
- Pingdom RUM since Jul 2023
- Cloudflare Browser Insights since Aug 2023
- Cloudflare Rocket Loader since Aug 2023
Previously used
- Adobe Audience Manager Oct 2022 to Feb 2026 · 3 yrs
- AppNexus Jan 2019 to Feb 2026 · 7 yrs
- Bootstrap Nov 2024 to Feb 2026 · 1 yr
- cdnjs Jul 2024 to Feb 2026 · 1 yr
- DoubleClick Campaign Manager (DCM) Jul 2024 to Feb 2026 · 1 yr
- Google Publisher Tag Feb 2021 to Feb 2026 · 5 yrs
- ID5 Oct 2023 to Feb 2026 · 2 yrs
- Microsoft ASP.NET Oct 2021 to Feb 2026 · 4 yrs
- OpenX Jul 2021 to Feb 2026 · 4 yrs
- PubMatic Jan 2021 to Feb 2026 · 5 yrs
- reCAPTCHA Apr 2022 to Feb 2026 · 3 yrs
- Rubicon Project Jul 2021 to Feb 2026 · 4 yrs
- Snowplow Analytics Sep 2022 to Feb 2026 · 3 yrs
- Tapad Jan 2023 to Feb 2026 · 3 yrs
- TripleLift Jul 2021 to Feb 2026 · 4 yrs
- VideoJS Jul 2024 to Feb 2026 · 1 yr
- 33Across Jul 2021 to Oct 2025 · 4 yrs
- Confiant Jun 2023 to Oct 2025 · 2 yrs
- Amazon Advertising Jun 2021 to Sep 2025 · 4 yrs
- Cloudflare Bot Management Nov 2021 to Sep 2025 · 3 yrs
- core-js Sep 2021 to Sep 2025 · 4 yrs
- Infolinks May 2024 to Mar 2025 · 10 mo
- LiveIntent May 2024 to Mar 2025 · 10 mo
- Outbrain Nov 2024 to Dec 2024 · 1 mo
- Cart Functionality Oct 2022 to Oct 2024 · 2 yrs
- Google Analytics Enhanced eCommerce Oct 2022 to Oct 2024 · 2 yrs
- GumGum May 2022 to Sep 2024 · 2 yrs
- Smart Ad Server Oct 2023 to Apr 2024 · 6 mo
- Admiral Nov 2022 to Feb 2024 · 1 yr
- jsDelivr Jan 2023 to Jan 2024 · 1 yr
- Quantcast Choice Aug 2020 to Aug 2023 · 3 yrs
- Amazon ALB Apr 2023 to Jul 2023 · 3 mo
- Amazon Web Services Apr 2023 to Jul 2023 · 3 mo
- Pingdom Jul 2021 to Jun 2023 · 1 yr
- Integral Ad Science Nov 2022 to Feb 2023 · 3 mo
- Facebook Pixel Oct 2022 to Jan 2023 · 3 mo
- New Relic Feb 2019 to Dec 2022 · 3 yrs
- Cloudflare Network Error Logging Feb 2022 to Oct 2022 · 8 mo
- Java Nov 2021 to Oct 2022 · 11 mo
- Mautic Jun 2021 to Aug 2022 · 1 yr
- Ad Lightning Jun 2021 to Jun 2022 · 1 yr
- Moat May 2022 to May 2022 · 1 mo
- District M Jul 2021 to Apr 2022 · 9 mo
- IIS Oct 2021 to Feb 2022 · 4 mo
- Salesforce Audience Studio Oct 2021 to Feb 2022 · 4 mo
- Windows Server Oct 2021 to Feb 2022 · 4 mo
- Wheelio Sep 2021 to Oct 2021 · 1 mo
Timeline
2026 16 dropped
- dropped Adobe Audience Manager Apr 2026 · Segmentation
- dropped AppNexus Apr 2026 · Advertising
- dropped Bootstrap Apr 2026 · UI frameworks
- dropped cdnjs Apr 2026 · CDN
- dropped DoubleClick Campaign Manager (DCM) Apr 2026 · Advertising
- dropped Google Publisher Tag Apr 2026 · Advertising
- dropped ID5 Apr 2026 · Advertising
- dropped Microsoft ASP.NET Apr 2026 · Web frameworks
- dropped OpenX Apr 2026 · Advertising
- dropped PubMatic Apr 2026 · Advertising
- dropped reCAPTCHA Apr 2026 · Security
- dropped Rubicon Project Apr 2026 · Advertising
- dropped Snowplow Analytics Apr 2026 · Analytics
- dropped Tapad Apr 2026 · Advertising
- dropped TripleLift Apr 2026 · Advertising
- dropped VideoJS Apr 2026 · Video players
2025 2 added · 9 dropped · 1 switched
- dropped 33Across Dec 2025 · Advertising
- dropped Amazon Advertising Nov 2025 · Advertising
- dropped Cloudflare Bot Management Nov 2025 · Security
- dropped core-js Nov 2025 · JavaScript libraries
- switched Confiant Cloudflare Bot Management Sep 2025 · Security
- dropped Cloudflare Bot Management May 2025 · Security
- dropped Infolinks May 2025 · Advertising
- dropped LiveIntent May 2025 · Advertising
- added Adobe Audience Manager Mar 2025 · Segmentation
- dropped Adobe Audience Manager Feb 2025 · Segmentation
- dropped Outbrain Feb 2025 · Advertising
- added Microsoft ASP.NET Jan 2025 · Web frameworks
2024 12 added · 12 dropped · 1 switched
- dropped Cart Functionality Dec 2024 · Ecommerce
- dropped Google Analytics Enhanced eCommerce Dec 2024 · Analytics
- added Bootstrap Nov 2024 · UI frameworks
- dropped Microsoft ASP.NET Nov 2024 · Web frameworks
- switched GumGum Outbrain Nov 2024 · Advertising
- added cdnjs Jul 2024 · CDN
- added DoubleClick Campaign Manager (DCM) Jul 2024 · Advertising
- dropped Microsoft ASP.NET Jul 2024 · Web frameworks
- added VideoJS Jul 2024 · Video players
- dropped Smart Ad Server Jun 2024 · Advertising
- added 33Across May 2024 · Advertising
- added Adobe Audience Manager May 2024 · Segmentation
- dropped GumGum May 2024 · Advertising
- added Infolinks May 2024 · Advertising
- added LiveIntent May 2024 · Advertising
- dropped Admiral Apr 2024 · Miscellaneous
- added Microsoft ASP.NET Apr 2024 · Web frameworks
- added Smart Ad Server Apr 2024 · Advertising
- dropped Snowplow Analytics Apr 2024 · Analytics
- dropped Adobe Audience Manager Mar 2024 · Segmentation
- added GumGum Mar 2024 · Advertising
- dropped jsDelivr Mar 2024 · CDN
- added Cloudflare Bot Management Feb 2024 · Security
- dropped Microsoft ASP.NET Jan 2024 · Web frameworks
- dropped Smart Ad Server Jan 2024 · Advertising
2023 20 added · 15 dropped · 1 switched
- added Cart Functionality Oct 2023 · Ecommerce
- added Google Analytics Enhanced eCommerce Oct 2023 · Analytics
- added ID5 Oct 2023 · Advertising
- added Microsoft ASP.NET Oct 2023 · Web frameworks
- dropped Quantcast Choice Oct 2023 · Cookie compliance
- added Smart Ad Server Oct 2023 · Advertising
- added Tapad Oct 2023 · Advertising
- dropped Amazon ALB Sep 2023 · Load balancers
- dropped Amazon Web Services Sep 2023 · PaaS
- added Cloudflare Browser Insights Aug 2023 · Analytics
- added Cloudflare Rocket Loader Aug 2023 · Performance
- switched Pingdom Pingdom RUM Jul 2023 · RUM
- dropped 33Across Jun 2023 · Advertising
- added Adobe Audience Manager Jun 2023 · Segmentation
- added Ahrefs Jun 2023 · Analytics
- added Confiant Jun 2023 · Security
- added jsDelivr Jun 2023 · CDN
- added Snowplow Analytics Jun 2023 · Analytics
- dropped Cart Functionality May 2023 · Ecommerce
- dropped Google Analytics Enhanced eCommerce May 2023 · Analytics
- dropped Tapad May 2023 · Advertising
- dropped Adobe Audience Manager Apr 2023 · Segmentation
- added Amazon ALB Apr 2023 · Load balancers
- added Amazon Web Services Apr 2023 · PaaS
- dropped Integral Ad Science Apr 2023 · Advertising
- dropped jsDelivr Apr 2023 · CDN
- dropped Snowplow Analytics Apr 2023 · Analytics
- dropped Facebook Pixel Mar 2023 · Analytics
- dropped Cloudflare Bot Management Feb 2023 · Security
- dropped GumGum Feb 2023 · Advertising
- dropped New Relic Feb 2023 · RUM
- added Cart Functionality Jan 2023 · Ecommerce
- added Facebook Pixel Jan 2023 · Analytics
- added Google Analytics Enhanced eCommerce Jan 2023 · Analytics
- added jsDelivr Jan 2023 · CDN
- added Tapad Jan 2023 · Advertising
2022 18 added · 16 dropped
- dropped Cart Functionality Dec 2022 · Ecommerce
- added Cloudflare Bot Management Dec 2022 · Security
- dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
- dropped Facebook Pixel Dec 2022 · Analytics
- dropped Google Analytics Enhanced eCommerce Dec 2022 · Analytics
- added GumGum Dec 2022 · Advertising
- dropped Java Dec 2022 · Programming languages
- dropped Mautic Nov 2022 · Marketing automation
- added Adobe Audience Manager Oct 2022 · Segmentation
- added Cart Functionality Oct 2022 · Ecommerce
- added Facebook Pixel Oct 2022 · Analytics
- added Google Analytics Enhanced eCommerce Oct 2022 · Analytics
- added HSTS Sep 2022 · Security
- added HTTP/3 Sep 2022 · Miscellaneous
- added Snowplow Analytics Sep 2022 · Analytics
- dropped Ad Lightning Aug 2022 · Advertising
- added Google Workspace Aug 2022 · Email
- added MailChimp Aug 2022 · Email
- added SparkPost Aug 2022 · Email
- dropped GumGum Jul 2022 · Advertising
- dropped Moat Jul 2022 · Analytics
- dropped Cloudflare Bot Management Jun 2022 · Security
- dropped District M Jun 2022 · Advertising
- added GumGum May 2022 · Advertising
- added Moat May 2022 · Analytics
- added Cloudflare Bot Management Apr 2022 · Security
- added Drupal Multisite Apr 2022 · Hosting
- dropped IIS Apr 2022 · Web servers
- dropped Microsoft ASP.NET Apr 2022 · Web frameworks
- added reCAPTCHA Apr 2022 · Security
- dropped Salesforce Audience Studio Apr 2022 · Segmentation
- dropped Windows Server Apr 2022 · Operating systems
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
- dropped Cloudflare Bot Management Jan 2022 · Security
2021 21 added · 2 dropped
- dropped Wheelio Dec 2021 · Widgets
- added Cloudflare Bot Management Nov 2021 · Security
- added Java Nov 2021 · Programming languages
- added IIS Oct 2021 · Web servers
- added Microsoft ASP.NET Oct 2021 · Web frameworks
- added Salesforce Audience Studio Oct 2021 · Segmentation
- added Windows Server Oct 2021 · Operating systems
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added 33Across Jul 2021 · Advertising
- added District M Jul 2021 · Advertising
- added New Relic Jul 2021 · Analytics
- added OpenX Jul 2021 · Advertising
- added Pingdom Jul 2021 · RUM
- added Rubicon Project Jul 2021 · Advertising
- added TripleLift Jul 2021 · Advertising
- added Ad Lightning Jun 2021 · Advertising
- added Amazon Advertising Jun 2021 · Advertising
- added Mautic Jun 2021 · Marketing automation
- added Sovrn Jun 2021 · Advertising
- dropped New Relic Mar 2021 · Analytics
- added Google Publisher Tag Feb 2021 · Advertising
- added PubMatic Jan 2021 · Advertising
2020 1 added
- added Quantcast Choice Aug 2020 · Cookie compliance
2019 3 added
- added AppNexus Mar 2019 · Advertising Networks
- added New Relic Mar 2019 · Analytics
- added New Relic Feb 2019 · Analytics
2018 12 added
- added Lodash Jul 2018 · JavaScript Frameworks
- added Criteo Jun 2018 · Advertising Networks
- added DoubleClick for Publishers (DFP) Jun 2018 · Advertising Networks
- added Facebook Jun 2018 · Widgets
- added Google AdSense Jun 2018 · Advertising Networks
- added Google Analytics Jun 2018 · Analytics
- added Google Tag Manager Jun 2018 · Tag Managers
- added jQuery Jun 2018 · JavaScript Frameworks
- added jQuery UI Jun 2018 · JavaScript Frameworks
- added PHP Jun 2018 · Programming Languages
- added Prebid Jun 2018 · Advertising Networks
- added Quantcast Measure Jun 2018 · Analytics