Technology history for bartleby.com

2026 1 added

• added Cart Functionality May 2026 · Ecommerce

2025 2 added · 1 dropped

• dropped AB Tasty Jun 2025 · A/B Testing
• added Envoy May 2025 · Reverse proxies
• added AB Tasty Feb 2025 · A/B Testing

2024 3 added · 3 dropped

• added Cloudflare Bot Management Sep 2024 · Security
• added All in One SEO Jul 2024 · SEO
• dropped Quantcast Measure Apr 2024 · Analytics
• dropped Debian Mar 2024 · Operating systems
• dropped Mautic Mar 2024 · Marketing automation
• added Mautic Jan 2024 · Marketing automation

2023 18 added · 10 dropped · 3 switched

• dropped Contact Form 7 Dec 2023 · WordPress plugins
• dropped RSS Dec 2023 · Miscellaneous
• added Apache HTTP Server Nov 2023 · Web servers
• dropped Criteo Nov 2023 · Advertising
• added Debian Nov 2023 · Operating systems
• dropped Google Publisher Tag Nov 2023 · Advertising
• dropped OpenX Nov 2023 · Advertising
• dropped Prebid Nov 2023 · Advertising
• added Redis Nov 2023 · Databases
• switched Google PageSpeed → Redis Object Cache Nov 2023 · Caching
• dropped Cloudflare Bot Management Sep 2023 · Security
• added Criteo Sep 2023 · Advertising
• added Google Publisher Tag Sep 2023 · Advertising
• added jsDelivr Sep 2023 · CDN
• switched Snowplow Analytics → Microsoft Clarity Sep 2023 · Analytics
• added OpenX Sep 2023 · Advertising
• added Prebid Sep 2023 · Advertising
• added Snowplow Analytics Sep 2023 · Analytics
• switched jsDelivr → Amazon S3 Aug 2023 · CDN
• added Google Sign-in Aug 2023 · Authentication
• added Lodash Aug 2023 · JavaScript libraries
• dropped Twitter Emoji (Twemoji) Jul 2023 · Font scripts
• dropped AB Tasty Jun 2023 · A/B Testing
• dropped C Apr 2023 · Programming languages
• added C Feb 2023 · Programming languages
• added Attentive Jan 2023 · Personalisation
• added cdnjs Jan 2023 · CDN
• added Cloudflare Jan 2023 · CDN
• added MathJax Jan 2023 · JavaScript graphics
• added Sailthru Jan 2023 · Marketing automation
• added Unpkg Jan 2023 · CDN

2022 48 added · 10 dropped · 3 switched

• dropped Google Ads Conversion Tracking Dec 2022 · Analytics
• dropped Microsoft Clarity Dec 2022 · Analytics
• added RSS Dec 2022 · Miscellaneous
• dropped Auth0 Nov 2022 · Authentication
• dropped Bugcrowd Nov 2022 · Security
• added Google Font API Nov 2022 · Font scripts
• dropped MailChimp Nov 2022 · Marketing automation
• dropped Salesforce Nov 2022 · CRM
• dropped Stripe Nov 2022 · Payment processors
• added Amplitude Oct 2022 · Analytics
• added PWA Oct 2022 · Miscellaneous
• added TinyMCE Oct 2022 · Rich text editors
• switched Auth0 Lock → Auth0 Sep 2022 · Authentication
• added HSTS Sep 2022 · Security
• added Open Graph Sep 2022 · Miscellaneous
• added Quantcast Measure Sep 2022 · Analytics
• added Twitter Ads Sep 2022 · Advertising
• added AB Tasty Aug 2022 · A/B Testing
• added Amazon CloudFront Aug 2022 · CDN
• added Amazon SES Aug 2022 · Email
• switched Heroku → Amazon Web Services Aug 2022 · PaaS
• added Contact Form 7 Aug 2022 · WordPress plugins
• added core-js Aug 2022 · JavaScript libraries
• added Facebook Pixel Aug 2022 · Analytics
• added Google Ads Conversion Tracking Aug 2022 · Analytics
• added Google Analytics Aug 2022 · Analytics
• added Google Hosted Libraries Aug 2022 · CDN
• added Google PageSpeed Aug 2022 · Caching
• added Google Tag Manager Aug 2022 · Tag managers
• added Google Workspace Aug 2022 · Webmail
• added Grin Aug 2022 · Marketing automation
• added Hotjar Aug 2022 · Analytics
• added jQuery Aug 2022 · JavaScript libraries
• added jQuery Migrate Aug 2022 · JavaScript libraries
• added Microsoft Advertising Aug 2022 · Advertising
• added Microsoft Clarity Aug 2022 · Analytics
• added MySQL Aug 2022 · Databases
• added Next.js Aug 2022 · Web servers
• added Nginx Aug 2022 · Web servers
• added Node.js Aug 2022 · Programming languages
• added OneTrust Aug 2022 · Cookie compliance
• added Optimizely Aug 2022 · A/B Testing
• added PHP Aug 2022 · Programming languages
• added React Aug 2022 · JavaScript frameworks
• added reCAPTCHA Aug 2022 · Security
• added Segment Aug 2022 · Customer data platform
• added styled-components Aug 2022 · JavaScript frameworks
• added TikTok Pixel Aug 2022 · Analytics
• added Twitter Emoji (Twemoji) Aug 2022 · Font scripts
• added Webpack Aug 2022 · Miscellaneous
• added WordPress Aug 2022 · CMS
• added Wurfl Aug 2022 · JavaScript libraries
• added Zendesk Aug 2022 · Documentation
• switched Tailwind CSS → ZURB Foundation Aug 2022 · UI frameworks
• dropped Facebook Jun 2022 · Widgets
• dropped Google Font API Jun 2022 · Font scripts
• added Tailwind CSS Apr 2022 · UI frameworks
• dropped Google Optimize Mar 2022 · A/B Testing
• added Contact Form 7 Feb 2022 · WordPress plugins
• added Google Hosted Libraries Feb 2022 · CDN
• added Microsoft Clarity Feb 2022 · Analytics

2021 18 added · 9 dropped · 1 switched

• dropped Wheelio Dec 2021 · Widgets
• dropped Attentive Nov 2021 · Widgets
• dropped Bootstrap Nov 2021 · UI frameworks
• added Grin Nov 2021 · Marketing automation
• dropped Sailthru Nov 2021 · Email
• dropped Trustpilot Nov 2021 · Widgets
• added Wurfl Nov 2021 · JavaScript libraries
• added Google Font API Oct 2021 · Font scripts
• added Bootstrap Sep 2021 · UI frameworks
• added core-js Sep 2021 · JavaScript libraries
• dropped TinyMCE Sep 2021 · Rich text editors
• added Trustpilot Sep 2021 · Widgets
• added Wheelio Sep 2021 · Widgets
• added Google Ads Conversion Tracking Aug 2021 · Analytics
• added Facebook Pixel Jul 2021 · Analytics
• added Google Optimize Jul 2021 · A/B Testing
• added styled-components Jul 2021 · JavaScript frameworks
• added TikTok Pixel Jul 2021 · Analytics
• added Twitter Emoji (Twemoji) Jul 2021 · Font scripts
• switched Cookiebot → OneTrust Jun 2021 · Cookie compliance
• dropped Cart Functionality May 2021 · Ecommerce
• dropped Twitter Emoji (Twemoji) May 2021 · Miscellaneous
• added Attentive Apr 2021 · Widgets
• added Sailthru Apr 2021 · Personalisation
• dropped Lodash Mar 2021 · JavaScript libraries
• added AB Tasty Feb 2021 · A/B Testing
• added Cookiebot Feb 2021 · Cookie compliance
• added Microsoft Advertising Feb 2021 · Analytics

2020 3 added

• added Hotjar Dec 2020 · Analytics
• added Cart Functionality Aug 2020 · Ecommerce
• added TinyMCE Mar 2020 · Rich Text Editors

2019 17 added · 5 dropped

• added Facebook Dec 2019 · Widgets
• dropped Google Font API Jun 2019 · Font Scripts
• dropped MathJax May 2019 · JavaScript Graphics
• dropped Optimizely May 2019 · Analytics
• dropped TinyMCE May 2019 · Rich Text Editors
• added Lodash Apr 2019 · JavaScript Libraries
• added Amazon CloudFront Mar 2019 · CDN
• added Amazon Web Services Mar 2019 · PaaS
• added Google Analytics Mar 2019 · Analytics
• added Google Font API Mar 2019 · Font Scripts
• added Google Tag Manager Mar 2019 · Tag Managers
• added MathJax Mar 2019 · JavaScript Graphics
• added Next.js Mar 2019 · Web Servers
• added Nginx Mar 2019 · Web Servers
• added Node.js Mar 2019 · Programming Languages
• added Optimizely Mar 2019 · Analytics
• added React Mar 2019 · JavaScript Frameworks
• added TinyMCE Mar 2019 · Rich Text Editors
• added Webpack Mar 2019 · Miscellaneous
• added ZURB Foundation Mar 2019 · Web Frameworks
• dropped styled-components Feb 2019 · Dev Tools
• added Amazon Web Services Jan 2019 · PaaS

2018 9 added · 1 dropped · 1 switched

• dropped jQuery Oct 2018 · JavaScript Libraries
• added Google Font API Sep 2018 · Font Scripts
• added MathJax Sep 2018 · JavaScript Graphics
• added Next.js Sep 2018 · Web Frameworks
• added Node.js Sep 2018 · Programming Languages
• added React Sep 2018 · JavaScript Frameworks
• added styled-components Sep 2018 · JavaScript Frameworks
• added Webpack Sep 2018 · Miscellaneous
• added Cross Pixel Jun 2018 · Analytics
• switched Cross Pixel → Google Analytics Jun 2018 · Analytics
• added jQuery May 2018 · JavaScript Frameworks