Technology history for tech21century.com
Stack size over time
From 12 detected technologies in Jan 2019 to 31 in Jun 2026 (peak 38).
Currently detected
- Google Analytics since Jan 2019
- Google Tag Manager since Jan 2019
- Cloudflare since Jan 2019
- MySQL since Jan 2019
- PHP since Jan 2019
- jQuery since Jan 2019
- WordPress since Jan 2019
- comScore since Feb 2019
- Prebid since Feb 2019
- Google Publisher Tag since Feb 2021
- Cloudflare Browser Insights since Jun 2021
- AdThrive since Jun 2021
- PubMatic since Jul 2021
- Rubicon Project since Jul 2021
- core-js since Sep 2021
- Cloudflare Bot Management since Nov 2021
- Snowplow Analytics since Dec 2021
- Adobe Audience Manager since Apr 2022
- reCAPTCHA since Apr 2022
- HTTP/3 since Sep 2022
- Open Graph since Sep 2022
- RSS since Dec 2022
- lit-element since Mar 2023
- lit-html since Mar 2023
- Amazon Web Services since Apr 2023
- Amazon ALB since Apr 2023
- ID5 since Oct 2023
- Genesis theme since Dec 2024
- Mailjet since Dec 2025
- Priority Hints since Apr 2026
- Super Page Cache since May 2026
Previously used
- OpenX Jul 2021 to Apr 2026 · 4 yrs
- TripleLift Jul 2021 to Apr 2026 · 4 yrs
- 33Across Jan 2022 to Mar 2026 · 4 yrs
- Amazon Advertising Jun 2021 to Feb 2026 · 4 yrs
- Microsoft ASP.NET Oct 2023 to Feb 2026 · 2 yrs
- AppNexus Feb 2019 to Jul 2025 · 6 yrs
- Confiant Jun 2023 to Jul 2025 · 2 yrs
- GumGum Jul 2021 to Jun 2025 · 3 yrs
- HSTS Sep 2022 to May 2024 · 1 yr
- Oracle Moat Measurement Nov 2023 to Dec 2023 · 1 mo
- Moat Apr 2021 to Sep 2023 · 2 yrs
- Unpkg Aug 2021 to Jun 2023 · 1 yr
- web-vitals Mar 2022 to Jun 2023 · 1 yr
- Aniview Ad Server May 2023 to May 2023 · 1 mo
- Aniview Video Ad Player May 2023 to May 2023 · 1 mo
- Integral Ad Science May 2022 to Nov 2022 · 6 mo
- Cloudflare Network Error Logging Feb 2022 to Oct 2022 · 8 mo
- Criteo Feb 2019 to Aug 2022 · 3 yrs
- Google Remarketing Tag Aug 2021 to May 2022 · 9 mo
- District M Jul 2021 to Mar 2022 · 8 mo
- Google Core Web Vitals Jan 2022 to Jan 2022 · 1 mo
- Yoast SEO Jun 2020 to Dec 2021 · 1 yr
- Google AdSense Jan 2019 to Nov 2021 · 2 yrs
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- jQuery Migrate Jan 2019 to Jun 2020 · 1 yr
- Facebook Jan 2019 to May 2020 · 1 yr
- W3 Total Cache Jan 2019 to May 2020 · 1 yr
- New Relic Feb 2019 to Jan 2020 · 11 mo
- Twitter Emoji (Twemoji) Jan 2019 to Dec 2019 · 11 mo
- Hotjar Jul 2019 to Jul 2019 · 1 mo
- DoubleClick for Publishers (DFP) Feb 2019 to Jun 2019 · 4 mo
Timeline
2026 8 added · 8 dropped
- added Cloudflare Bot Management Jun 2026 · Security
- dropped OpenX Jun 2026 · Advertising
- dropped TripleLift Jun 2026 · Advertising
- dropped 33Across May 2026 · Advertising
- added Super Page Cache May 2026 · Caching
- dropped Amazon Advertising Apr 2026 · Advertising
- dropped Microsoft ASP.NET Apr 2026 · Web frameworks
- added OpenX Apr 2026 · Advertising
- added Priority Hints Apr 2026 · Performance
- added 33Across Mar 2026 · Advertising
- added Amazon ALB Mar 2026 · Load balancers
- added Amazon Web Services Mar 2026 · PaaS
- dropped OpenX Mar 2026 · Advertising
- dropped Amazon ALB Feb 2026 · Load balancers
- dropped Amazon Web Services Feb 2026 · PaaS
- added OpenX Jan 2026 · Advertising
2025 8 added · 8 dropped
- dropped 33Across Dec 2025 · Advertising
- added Mailjet Dec 2025 · Email
- dropped OpenX Dec 2025 · Advertising
- added TripleLift Oct 2025 · Advertising
- dropped AppNexus Sep 2025 · Advertising
- dropped Confiant Sep 2025 · Security
- dropped TripleLift Sep 2025 · Advertising
- dropped GumGum Aug 2025 · Advertising
- dropped Cloudflare Bot Management Jun 2025 · Security
- added GumGum Jun 2025 · Advertising
- added 33Across May 2025 · Advertising
- added Amazon ALB May 2025 · Load balancers
- added Amazon Web Services May 2025 · PaaS
- dropped 33Across Apr 2025 · Advertising
- added Microsoft ASP.NET Feb 2025 · Web frameworks
- added Cloudflare Bot Management Jan 2025 · Security
2024 6 added · 10 dropped
- dropped Cloudflare Bot Management Dec 2024 · Security
- added Genesis theme Dec 2024 · WordPress themes
- added 33Across Nov 2024 · Advertising
- dropped 33Across Oct 2024 · Advertising
- added Cloudflare Bot Management Oct 2024 · Security
- dropped Cloudflare Bot Management Sep 2024 · Security
- dropped Microsoft ASP.NET Sep 2024 · Web frameworks
- dropped HSTS Jul 2024 · Security
- added Cloudflare Bot Management Jun 2024 · Security
- added ID5 Jun 2024 · Advertising
- added Microsoft ASP.NET Jun 2024 · Web frameworks
- dropped Cloudflare Bot Management Apr 2024 · Security
- dropped GumGum Apr 2024 · Advertising
- dropped ID5 Apr 2024 · Advertising
- dropped Microsoft ASP.NET Mar 2024 · Web frameworks
- dropped Oracle Moat Measurement Feb 2024 · Analytics
2023 18 added · 12 dropped · 1 switched
- added Cloudflare Bot Management Dec 2023 · Security
- dropped Moat Nov 2023 · Analytics
- added Oracle Moat Measurement Nov 2023 · Analytics
- dropped Amazon ALB Oct 2023 · Load balancers
- dropped Amazon Web Services Oct 2023 · PaaS
- added ID5 Oct 2023 · Advertising
- added Microsoft ASP.NET Oct 2023 · Web frameworks
- added GumGum Sep 2023 · Advertising
- dropped Snowplow Analytics Sep 2023 · Analytics
- switched web-vitals core-js Aug 2023 · JavaScript libraries
- dropped Unpkg Aug 2023 · CDN
- dropped Aniview Ad Server Jul 2023 · Advertising
- dropped Aniview Video Ad Player Jul 2023 · Video players
- dropped core-js Jul 2023 · JavaScript libraries
- added Moat Jul 2023 · Analytics
- added Snowplow Analytics Jul 2023 · Analytics
- added Confiant Jun 2023 · Security
- added Google Publisher Tag Jun 2023 · Advertising
- added Aniview Ad Server May 2023 · Advertising
- added Aniview Video Ad Player May 2023 · Video players
- dropped Google Publisher Tag May 2023 · Advertising
- dropped Moat May 2023 · Analytics
- added Unpkg May 2023 · CDN
- added web-vitals May 2023 · JavaScript libraries
- added Amazon ALB Apr 2023 · Load balancers
- added Amazon Web Services Apr 2023 · PaaS
- added lit-element Mar 2023 · JavaScript libraries
- added lit-html Mar 2023 · JavaScript libraries
- added Moat Feb 2023 · Analytics
- dropped Integral Ad Science Jan 2023 · Advertising
- dropped Snowplow Analytics Jan 2023 · Analytics
2022 14 added · 16 dropped
- dropped Cloudflare Bot Management Dec 2022 · Security
- dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
- added RSS Dec 2022 · Miscellaneous
- dropped Criteo Nov 2022 · Advertising
- added HSTS Sep 2022 · Security
- added HTTP/3 Sep 2022 · Miscellaneous
- added Open Graph Sep 2022 · Miscellaneous
- dropped Snowplow Analytics Aug 2022 · Analytics
- dropped Google Remarketing Tag Jul 2022 · Retargeting
- dropped Integral Ad Science Jul 2022 · Advertising
- added 33Across Jun 2022 · Advertising
- dropped 33Across May 2022 · Advertising
- dropped District M May 2022 · Advertising
- added Integral Ad Science May 2022 · Advertising
- dropped Unpkg May 2022 · CDN
- dropped web-vitals May 2022 · JavaScript libraries
- added Adobe Audience Manager Apr 2022 · Segmentation
- dropped GumGum Apr 2022 · Advertising
- added reCAPTCHA Apr 2022 · Security
- added Snowplow Analytics Apr 2022 · Analytics
- dropped Google Core Web Vitals Mar 2022 · RUM
- added web-vitals Mar 2022 · JavaScript libraries
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
- dropped Moat Feb 2022 · Analytics
- dropped Snowplow Analytics Feb 2022 · IaaS
- dropped Yoast SEO Feb 2022 · SEO
- added 33Across Jan 2022 · Advertising
- dropped Google AdSense Jan 2022 · Advertising
- added Google Core Web Vitals Jan 2022 · RUM
- added Unpkg Jan 2022 · CDN
2021 23 added · 8 dropped
- added Moat Dec 2021 · Analytics
- added Snowplow Analytics Dec 2021 · IaaS
- dropped Wheelio Dec 2021 · Widgets
- added Cloudflare Bot Management Nov 2021 · Security
- added Yoast SEO Nov 2021 · SEO
- dropped Unpkg Oct 2021 · CDN
- dropped Yoast SEO Oct 2021 · SEO
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- added Google Remarketing Tag Aug 2021 · Retargeting
- added Unpkg Aug 2021 · CDN
- added Criteo Jul 2021 · Retargeting
- added District M Jul 2021 · Advertising
- added Google AdSense Jul 2021 · Advertising
- added Google Tag Manager Jul 2021 · Tag managers
- added GumGum Jul 2021 · Advertising
- added OpenX Jul 2021 · Advertising
- added Prebid Jul 2021 · Advertising
- added PubMatic Jul 2021 · Advertising
- added Rubicon Project Jul 2021 · Advertising
- added TripleLift Jul 2021 · Advertising
- added AdThrive Jun 2021 · Advertising
- added Amazon Advertising Jun 2021 · Advertising
- added Cloudflare Browser Insights Jun 2021 · Analytics
- dropped Google Tag Manager Jun 2021 · Tag managers
- dropped Moat Jun 2021 · Analytics
- added Moat Apr 2021 · Analytics
- dropped Google AdSense Mar 2021 · Advertising
- dropped Prebid Mar 2021 · Advertising
- added Google Publisher Tag Feb 2021 · Advertising
- dropped Criteo Jan 2021 · Advertising
2020 5 added · 8 dropped · 1 switched
- dropped jQuery Migrate Aug 2020 · JavaScript libraries
- dropped Facebook Jul 2020 · Widgets
- dropped W3 Total Cache Jul 2020 · Caching
- added Yoast SEO Jun 2020 · SEO
- added AppNexus May 2020 · Advertising
- switched New Relic comScore May 2020 · Analytics
- added Criteo May 2020 · Advertising
- added Google AdSense May 2020 · Advertising
- added Prebid May 2020 · Advertising
- dropped AppNexus Apr 2020 · Advertising Networks
- dropped comScore Apr 2020 · Analytics
- dropped Google AdSense Apr 2020 · Advertising Networks
- dropped Prebid Apr 2020 · Advertising Networks
- dropped Twitter Emoji (Twemoji) Feb 2020 · Miscellaneous
2019 7 added · 3 dropped
- dropped Criteo Dec 2019 · Advertising Networks
- dropped Hotjar Sep 2019 · Analytics
- dropped DoubleClick for Publishers (DFP) Aug 2019 · Advertising Networks
- added Hotjar Jul 2019 · Analytics
- added AppNexus Feb 2019 · Advertising Networks
- added comScore Feb 2019 · Analytics
- added Criteo Feb 2019 · Advertising Networks
- added DoubleClick for Publishers (DFP) Feb 2019 · Advertising Networks
- added New Relic Feb 2019 · Analytics
- added Prebid Feb 2019 · Advertising Networks