Technology history for sheldonbrown.com

2026 2 dropped

• dropped Cloudflare Apr 2026 · CDN
• dropped Cloudflare Bot Management Apr 2026 · Security

2025 4 added · 2 dropped · 1 switched

• added Cloudflare Dec 2025 · CDN
• added Cloudflare Bot Management Dec 2025 · Security
• added Google Font API Nov 2025 · Font scripts
• dropped Cloudflare May 2025 · CDN
• dropped Cloudflare Bot Management May 2025 · Security
• switched Google Hosted Libraries → Cloudflare Mar 2025 · CDN
• added Cloudflare Bot Management Mar 2025 · Security

2024 1 added · 7 dropped · 1 switched

• dropped Amazon Web Services Dec 2024 · PaaS
• switched Ezoic → Google AdSense Dec 2024 · Advertising
• dropped jQuery Dec 2024 · JavaScript libraries
• dropped Quantcast Measure Dec 2024 · Analytics
• added reCAPTCHA Dec 2024 · Security
• dropped web-vitals Dec 2024 · JavaScript libraries
• dropped Cloudflare Sep 2024 · CDN
• dropped HTTP/3 Sep 2024 · Miscellaneous
• dropped core-js Mar 2024 · JavaScript libraries

2023 13 added · 22 dropped

• dropped Adobe Audience Manager Oct 2023 · Segmentation
• dropped Amazon Advertising Oct 2023 · Advertising
• dropped AppNexus Oct 2023 · Advertising
• dropped Cart Functionality Oct 2023 · Ecommerce
• dropped Conversant Consent Tool Oct 2023 · Cookie compliance
• dropped Criteo Oct 2023 · Advertising
• dropped Google Analytics Enhanced eCommerce Oct 2023 · Analytics
• dropped Google Publisher Tag Oct 2023 · Advertising
• dropped jsDelivr Oct 2023 · CDN
• dropped OpenX Oct 2023 · Advertising
• dropped Prebid Oct 2023 · Advertising
• dropped PubMatic Oct 2023 · Advertising
• dropped reCAPTCHA Oct 2023 · Security
• dropped Rubicon Project Oct 2023 · Advertising
• dropped Smart Ad Server Oct 2023 · Advertising
• dropped Snowplow Analytics Oct 2023 · Analytics
• dropped Tapad Oct 2023 · Advertising
• dropped Amazon ALB Sep 2023 · Load balancers
• added Conversant Consent Tool Aug 2023 · Cookie compliance
• added core-js Aug 2023 · JavaScript libraries
• added PubMatic Aug 2023 · Advertising
• added Smart Ad Server Aug 2023 · Advertising
• added Adobe Audience Manager Jul 2023 · Segmentation
• dropped Cloudflare Bot Management Jun 2023 · Security
• added Google Publisher Tag Jun 2023 · Advertising
• dropped Adobe Audience Manager May 2023 · Segmentation
• dropped Google Publisher Tag May 2023 · Advertising
• added Cloudflare Bot Management Apr 2023 · Security
• added Cart Functionality Mar 2023 · Ecommerce
• added Google Analytics Enhanced eCommerce Mar 2023 · Analytics
• added Rubicon Project Mar 2023 · Advertising
• added Tapad Mar 2023 · Advertising
• added Amazon ALB Feb 2023 · Load balancers
• dropped Rubicon Project Feb 2023 · Advertising
• added jsDelivr Jan 2023 · CDN

2022 20 added · 17 dropped · 2 switched

• dropped Cloudflare Bot Management Dec 2022 · Security
• dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
• dropped Google AdSense Dec 2022 · Advertising
• dropped Twitter Dec 2022 · Widgets
• dropped Twitter Ads Dec 2022 · Advertising
• switched Nginx → Apache HTTP Server Oct 2022 · Web servers
• added Criteo Sep 2022 · Advertising
• added HTTP/3 Sep 2022 · Miscellaneous
• added OpenX Sep 2022 · Advertising
• added Prebid Sep 2022 · Advertising
• added Snowplow Analytics Sep 2022 · Analytics
• added Adobe Audience Manager Aug 2022 · Segmentation
• added Amazon Web Services Aug 2022 · PaaS
• added Cloudflare Bot Management Aug 2022 · Security
• dropped Adobe Audience Manager Jul 2022 · Segmentation
• dropped Criteo Jul 2022 · Advertising
• added Google AdSense Jul 2022 · Advertising
• dropped Google Remarketing Tag Jul 2022 · Retargeting
• dropped Cloudflare Bot Management Jun 2022 · Security
• dropped Facebook Jun 2022 · Widgets
• dropped Google AdSense Jun 2022 · Advertising
• dropped OpenX Jun 2022 · Advertising
• dropped theTradeDesk Jun 2022 · Advertising
• dropped Bootstrap May 2022 · UI frameworks
• dropped core-js May 2022 · JavaScript libraries
• added Adobe Audience Manager Apr 2022 · Segmentation
• added Cloudflare Bot Management Apr 2022 · Security
• added reCAPTCHA Apr 2022 · Security
• added Sovrn Apr 2022 · Advertising
• added theTradeDesk Apr 2022 · Advertising
• added Bootstrap Feb 2022 · UI frameworks
• added Cloudflare Network Error Logging Feb 2022 · Issue trackers
• added Google Hosted Libraries Feb 2022 · CDN
• dropped Sovrn Feb 2022 · Advertising
• switched Google Core Web Vitals → web-vitals Feb 2022 · RUM
• added AppNexus Jan 2022 · Advertising
• dropped Bootstrap Jan 2022 · UI frameworks
• added Criteo Jan 2022 · Advertising
• added OpenX Jan 2022 · Advertising

2021 17 added · 14 dropped · 2 switched

• dropped OpenX Dec 2021 · Advertising
• added Sovrn Dec 2021 · Advertising
• dropped Wheelio Dec 2021 · Widgets
• added Bootstrap Nov 2021 · UI frameworks
• dropped AppNexus Oct 2021 · Advertising
• added core-js Oct 2021 · JavaScript libraries
• dropped Quantcast Choice Oct 2021 · Cookie compliance
• dropped Bootstrap Sep 2021 · UI frameworks
• added Google Core Web Vitals Sep 2021 · RUM
• switched Google Plus → Wheelio Sep 2021 · Widgets
• added AppNexus Jul 2021 · Advertising
• added Facebook Login Jul 2021 · Social logins
• added Google AdSense Jul 2021 · Advertising
• added Google Remarketing Tag Jul 2021 · Retargeting
• added OpenX Jul 2021 · Advertising
• added Quantcast Choice Jul 2021 · Cookie compliance
• added Rubicon Project Jul 2021 · Advertising
• added Twitter Ads Jul 2021 · Advertising
• added Amazon Advertising Jun 2021 · Advertising
• dropped PubMatic Jun 2021 · Advertising
• dropped AppNexus May 2021 · Advertising
• switched comScore → Ezoic May 2021 · Analytics
• dropped Google Font API May 2021 · Font scripts
• dropped Font Awesome Apr 2021 · Font scripts
• added PubMatic Apr 2021 · Advertising
• dropped Criteo Mar 2021 · Advertising
• dropped DoubleClick Ad Exchange (AdX) Mar 2021 · Advertising
• dropped Google AdSense Mar 2021 · Advertising
• dropped PubMatic Mar 2021 · Advertising
• dropped Quantcast Choice Mar 2021 · Cookie compliance
• added Google Publisher Tag Feb 2021 · Advertising
• added Google Sign-in Feb 2021 · Social logins
• added Bootstrap Jan 2021 · UI frameworks

2020 4 added · 2 dropped

• added AppNexus Dec 2020 · Advertising
• dropped Bootstrap Dec 2020 · UI frameworks
• added Criteo Nov 2020 · Advertising
• added PubMatic Nov 2020 · Advertising
• added Quantcast Choice Aug 2020 · Cookie compliance
• dropped AppNexus Mar 2020 · Advertising Networks

2019 20 added · 3 dropped

• dropped DoubleClick for Publishers (DFP) Oct 2019 · Advertising Networks
• dropped Varnish Sep 2019 · Cache Tools
• dropped Outbrain Jul 2019 · Widgets
• added AppNexus Mar 2019 · Advertising Networks
• added Bootstrap Mar 2019 · Web Frameworks
• added Cloudflare Mar 2019 · CDN
• added comScore Mar 2019 · Analytics
• added DoubleClick Ad Exchange (AdX) Mar 2019 · Advertising Networks
• added DoubleClick for Publishers (DFP) Mar 2019 · Advertising Networks
• added Facebook Mar 2019 · Widgets
• added Font Awesome Mar 2019 · Font Scripts
• added Google AdSense Mar 2019 · Advertising Networks
• added Google Analytics Mar 2019 · Analytics
• added Google Font API Mar 2019 · Font Scripts
• added Google Plus Mar 2019 · Widgets
• added Google Tag Manager Mar 2019 · Tag Managers
• added jQuery Mar 2019 · JavaScript Libraries
• added Nginx Mar 2019 · Web Servers
• added Outbrain Mar 2019 · Widgets
• added Quantcast Measure Mar 2019 · Analytics
• added Twitter Mar 2019 · Widgets
• added Varnish Mar 2019 · Cache Tools
• added Varnish Jan 2019 · Cache Tools

2018 9 added · 1 dropped

• added AppNexus Sep 2018 · Advertising Networks
• dropped Varnish Aug 2018 · Cache Tools
• added DoubleClick for Publishers (DFP) Jun 2018 · Advertising Networks
• added Google Analytics Jun 2018 · Analytics
• added Google Plus Jun 2018 · Widgets
• added Google Tag Manager Jun 2018 · Tag Managers
• added Outbrain Jun 2018 · Widgets
• added Quantcast Measure Jun 2018 · Analytics
• added Twitter Jun 2018 · Widgets
• added Varnish May 2018 · Cache Tools