Technology history for irs.com
Stack size over time
From 8 detected technologies in Apr 2018 to 45 in Jun 2026 (peak 49).
Currently detected
- Google AdSense since Apr 2018
- Bootstrap since Apr 2018
- jQuery since Apr 2018
- Google Font API since Apr 2018
- Google Tag Manager since Apr 2018
- Google Analytics since Jun 2018
- PHP since Jun 2018
- Cloudflare since Dec 2018
- jQuery Migrate since Dec 2018
- MySQL since Dec 2018
- Twitter Emoji (Twemoji) since Dec 2018
- WordPress since Dec 2018
- Facebook Pixel since Jul 2021
- core-js since Sep 2021
- Contact Form 7 since Feb 2022
- reCAPTCHA since Apr 2022
- Open Graph since Sep 2022
- Google Workspace since Feb 2023
- Amazon Advertising since May 2023
- AppNexus since May 2023
- Google Publisher Tag since May 2023
- Rubicon Project since May 2023
- Tapad since May 2023
- Criteo since Jun 2023
- OpenX since Jun 2023
- PubMatic since Jun 2023
- Matomo Analytics since Jun 2023
- Snowplow Analytics since Jun 2023
- Adobe Audience Manager since Jul 2023
- Priority Hints since Sep 2023
- Conversant Consent Tool since Jul 2024
- Ezoic since Jul 2024
- Funding Choices since Jul 2024
- 33Across since Jul 2024
- ID5 since Jul 2024
- Quantcast Measure since Jul 2024
- web-vitals since Jul 2024
- WordPress Block Editor since Jul 2024
- Cloudflare Bot Management since Feb 2025
- LiveIntent since Mar 2025
- jsDelivr since Apr 2025
- TripleLift since Jun 2025
- Google Sign-in since Aug 2025
- FingerprintJS since Apr 2026
- VideoJS since Apr 2026
Previously used
- Microsoft Advertising May 2025 to Apr 2026 · 11 mo
- Microsoft Clarity May 2025 to Apr 2026 · 11 mo
- Microsoft ASP.NET Nov 2024 to Jan 2026 · 1 yr
- Prebid Apr 2025 to Nov 2025 · 7 mo
- MailChimp Mar 2025 to Aug 2025 · 5 mo
- MailChimp for WordPress Mar 2025 to Aug 2025 · 5 mo
- Teads May 2025 to Jun 2025 · 1 mo
- Google Hosted Libraries Jul 2024 to May 2025 · 10 mo
- Cart Functionality May 2023 to Oct 2024 · 1 yr
- Google Analytics Enhanced eCommerce May 2023 to Oct 2024 · 1 yr
- Yoast SEO Dec 2018 to Sep 2023 · 4 yrs
- DoubleClick for Publishers (DFP) Jun 2018 to Aug 2023 · 5 yrs
- Primis Jun 2023 to Aug 2023 · 2 mo
- Slick Dec 2018 to Aug 2023 · 4 yrs
- YouTube Feb 2023 to Aug 2023 · 6 mo
- Amazon ALB Feb 2023 to Jul 2023 · 5 mo
- Amazon Web Services Feb 2023 to Jul 2023 · 5 mo
- Smart Ad Server May 2023 to Jun 2023 · 1 mo
- Google Optimize Jul 2021 to Dec 2022 · 1 yr
- Cloudflare Network Error Logging Feb 2022 to Oct 2022 · 8 mo
- Google Ads Conversion Tracking Jul 2021 to Oct 2022 · 1 yr
- Facebook Jun 2018 to Apr 2022 · 3 yrs
- Wheelio Sep 2021 to Oct 2021 · 1 mo
- React Nov 2019 to Jun 2020 · 7 mo
- AdRoll Jun 2018 to Nov 2018 · 5 mo
- Amazon CloudFront Apr 2018 to Nov 2018 · 7 mo
- Drupal Apr 2018 to Nov 2018 · 7 mo
- LivePerson Jun 2018 to Nov 2018 · 5 mo
- Underscore.js Apr 2018 to Nov 2018 · 7 mo
- Lodash Jun 2018 to Jun 2018 · 1 mo
Timeline
2026 3 added · 6 dropped
- dropped Microsoft Advertising Jun 2026 · Advertising
- dropped Microsoft Clarity Jun 2026 · Analytics
- added Cloudflare Bot Management May 2026 · Security
- added FingerprintJS Apr 2026 · JavaScript libraries
- dropped Microsoft ASP.NET Apr 2026 · Web frameworks
- added VideoJS Apr 2026 · Video players
- dropped Prebid Mar 2026 · Advertising
- dropped Microsoft Advertising Jan 2026 · Advertising
- dropped Microsoft Clarity Jan 2026 · Analytics
2025 12 added · 8 dropped · 2 switched
- dropped MailChimp Oct 2025 · Marketing automation
- dropped MailChimp for WordPress Oct 2025 · WordPress plugins
- added Prebid Oct 2025 · Advertising
- added Microsoft Clarity Sep 2025 · Analytics
- added Google Sign-in Aug 2025 · Authentication
- dropped Teads Aug 2025 · Advertising
- dropped Cloudflare Bot Management Jul 2025 · Security
- dropped Microsoft Clarity Jul 2025 · Analytics
- dropped Prebid Jul 2025 · Advertising
- added TripleLift Jun 2025 · Advertising
- added Cloudflare Bot Management May 2025 · Security
- added Microsoft Advertising May 2025 · Advertising
- switched Google Analytics Enhanced eCommerce Microsoft Clarity May 2025 · Analytics
- added Teads May 2025 · Advertising
- dropped Cloudflare Bot Management Apr 2025 · Security
- switched Google Hosted Libraries jsDelivr Apr 2025 · CDN
- added Prebid Apr 2025 · Advertising
- added LiveIntent Mar 2025 · Email
- added MailChimp Mar 2025 · Marketing automation
- added MailChimp for WordPress Mar 2025 · WordPress plugins
- added Cloudflare Bot Management Feb 2025 · Security
- dropped Cart Functionality Jan 2025 · Ecommerce
2024 2 added · 6 dropped
- added Adobe Audience Manager Nov 2024 · Segmentation
- added Microsoft ASP.NET Nov 2024 · Web frameworks
- dropped Yoast SEO Sep 2024 · WordPress plugins
- dropped Adobe Audience Manager Jul 2024 · Segmentation
- dropped DoubleClick for Publishers (DFP) Jul 2024 · Advertising
- dropped Primis Jul 2024 · Advertising
- dropped Slick Jul 2024 · JavaScript libraries
- dropped YouTube Jul 2024 · Video players
2023 21 added · 5 dropped
- dropped Amazon ALB Sep 2023 · Load balancers
- dropped Amazon Web Services Sep 2023 · PaaS
- added Priority Hints Sep 2023 · Performance
- dropped Smart Ad Server Aug 2023 · Advertising
- added Adobe Audience Manager Jul 2023 · Segmentation
- added Criteo Jun 2023 · Advertising
- added Matomo Analytics Jun 2023 · Analytics
- added OpenX Jun 2023 · Advertising
- added Primis Jun 2023 · Advertising
- added PubMatic Jun 2023 · Advertising
- added Snowplow Analytics Jun 2023 · Analytics
- dropped Twitter Emoji (Twemoji) Jun 2023 · Font scripts
- added Amazon Advertising May 2023 · Advertising
- added AppNexus May 2023 · Advertising
- added Cart Functionality May 2023 · Ecommerce
- added DoubleClick for Publishers (DFP) May 2023 · Advertising
- added Google Analytics Enhanced eCommerce May 2023 · Analytics
- added Google Publisher Tag May 2023 · Advertising
- added Rubicon Project May 2023 · Advertising
- added Smart Ad Server May 2023 · Advertising
- added Tapad May 2023 · Advertising
- added Amazon ALB Feb 2023 · Load balancers
- added Amazon Web Services Feb 2023 · PaaS
- dropped Google Optimize Feb 2023 · A/B Testing
- added Google Workspace Feb 2023 · Webmail
- added YouTube Feb 2023 · Video players
2022 24 added · 3 dropped
- dropped Cloudflare Network Error Logging Dec 2022 · Issue trackers
- dropped Google Ads Conversion Tracking Dec 2022 · Analytics
- added Open Graph Sep 2022 · Miscellaneous
- added Bootstrap Aug 2022 · UI frameworks
- added Cloudflare Aug 2022 · CDN
- added Cloudflare Network Error Logging Aug 2022 · Issue trackers
- 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 AdSense Aug 2022 · Advertising
- added Google Analytics Aug 2022 · Analytics
- added Google Font API Aug 2022 · Font scripts
- added Google Optimize Aug 2022 · A/B Testing
- added Google Tag Manager Aug 2022 · Tag managers
- added jQuery Aug 2022 · JavaScript libraries
- added MySQL Aug 2022 · Databases
- added PHP Aug 2022 · Programming languages
- added reCAPTCHA Aug 2022 · Security
- added Slick Aug 2022 · JavaScript libraries
- added Twitter Emoji (Twemoji) Aug 2022 · Font scripts
- added WordPress Aug 2022 · CMS
- added Yoast SEO Aug 2022 · WordPress plugins
- dropped Facebook Jun 2022 · Widgets
- added reCAPTCHA Apr 2022 · Security
- added Cloudflare Network Error Logging Feb 2022 · Issue trackers
- added Contact Form 7 Feb 2022 · WordPress plugins
2021 7 added · 3 dropped
- dropped Wheelio Dec 2021 · Widgets
- added Yoast SEO Nov 2021 · SEO
- added core-js Sep 2021 · JavaScript libraries
- added Wheelio Sep 2021 · Widgets
- dropped Yoast SEO Sep 2021 · SEO
- added Facebook Pixel Jul 2021 · Analytics
- added Google Ads Conversion Tracking Jul 2021 · Analytics
- added Google Optimize Jul 2021 · A/B Testing
- added Twitter Emoji (Twemoji) Jul 2021 · Font scripts
- dropped Twitter Emoji (Twemoji) Mar 2021 · Miscellaneous
2020 2 dropped
- dropped jQuery Migrate Dec 2020 · JavaScript libraries
- dropped React Aug 2020 · JavaScript frameworks
2019 16 added · 6 dropped
- added Google AdSense Nov 2019 · Advertising Networks
- added React Nov 2019 · JavaScript Frameworks
- added Bootstrap Mar 2019 · Web Frameworks
- added Cloudflare Mar 2019 · CDN
- added Facebook Mar 2019 · Widgets
- added Google Analytics Mar 2019 · Analytics
- added Google Font API Mar 2019 · Font Scripts
- added Google Tag Manager Mar 2019 · Tag Managers
- added jQuery Mar 2019 · JavaScript Libraries
- added jQuery Migrate Mar 2019 · JavaScript Libraries
- added MySQL Mar 2019 · Databases
- added PHP Mar 2019 · Programming Languages
- added Slick Mar 2019 · JavaScript Libraries
- added Twitter Emoji (Twemoji) Mar 2019 · Miscellaneous
- added WordPress Mar 2019 · Blogs
- added Yoast SEO Mar 2019 · SEO
- dropped AdRoll Jan 2019 · Advertising Networks
- dropped Amazon CloudFront Jan 2019 · CDN
- dropped DoubleClick for Publishers (DFP) Jan 2019 · Advertising Networks
- dropped Google AdSense Jan 2019 · Advertising Networks
- dropped LivePerson Jan 2019 · Live Chat
- dropped Underscore.js Jan 2019 · JavaScript Libraries
2018 13 added · 1 dropped · 1 switched
- added Cloudflare Dec 2018 · CDN
- added jQuery Migrate Dec 2018 · JavaScript Libraries
- added MySQL Dec 2018 · Databases
- added Slick Dec 2018 · JavaScript Libraries
- added Twitter Emoji (Twemoji) Dec 2018 · Miscellaneous
- switched Drupal WordPress Dec 2018 · CMS
- added Yoast SEO Dec 2018 · SEO
- dropped Lodash Aug 2018 · JavaScript Frameworks
- added AdRoll Jun 2018 · Advertising Networks
- added DoubleClick for Publishers (DFP) Jun 2018 · Advertising Networks
- added Facebook Jun 2018 · Widgets
- added Google Analytics Jun 2018 · Analytics
- added LivePerson Jun 2018 · Live Chat
- added Lodash Jun 2018 · JavaScript Frameworks
- added PHP Jun 2018 · Programming Languages