Technology history for a21.jp
Stack size over time
From 19 detected technologies in Apr 2022 to 21 in Jun 2026 (peak 25).
Currently detected
- jQuery Migrate since Apr 2022
- jsDelivr since Apr 2022
- MySQL since Apr 2022
- Google Font API since Apr 2022
- Google Tag Manager since Apr 2022
- jQuery since Apr 2022
- Quantcast Measure since Apr 2022
- Font Awesome since Apr 2022
- Google Analytics since Apr 2022
- Nginx since Apr 2022
- PHP since Apr 2022
- WordPress since Apr 2022
- Xserver since Aug 2022
- Moshimo since Sep 2022
- Open Graph since Sep 2022
- RSS since Dec 2022
- Priority Hints since May 2024
- ValueCommerce since May 2024
- reCAPTCHA since Aug 2024
- Funding Choices since Aug 2024
- Google AdSense since Aug 2024
Previously used
- cdnjs Apr 2022 to Apr 2026 · 4 yrs
- Cloudflare Jul 2022 to Apr 2026 · 3 yrs
- Google Hosted Libraries Apr 2022 to Dec 2025 · 3 yrs
- Snowplow Analytics Aug 2025 to Aug 2025 · 1 mo
- Contact Form 7 Apr 2022 to May 2024 · 2 yrs
- Clipboard.js Apr 2022 to Apr 2024 · 2 yrs
- C Feb 2023 to Feb 2023 · 1 mo
- core-js Apr 2022 to Oct 2022 · 6 mo
- Google Remarketing Tag Apr 2022 to Apr 2022 · 1 mo
- Tailwind CSS Apr 2022 to Apr 2022 · 1 mo
Timeline
2026 3 dropped
- dropped cdnjs Jun 2026 · CDN
- dropped Cloudflare Jun 2026 · CDN
- dropped Google Hosted Libraries Feb 2026 · CDN
2025 1 added · 1 dropped
- dropped Snowplow Analytics Oct 2025 · Analytics
- added Snowplow Analytics Aug 2025 · Analytics
2024 5 added · 2 dropped
- dropped Contact Form 7 Aug 2024 · WordPress plugins
- added Funding Choices Aug 2024 · Cookie compliance
- added Google AdSense Aug 2024 · Advertising
- added reCAPTCHA Aug 2024 · Security
- dropped Clipboard.js Jul 2024 · JavaScript libraries
- added Priority Hints May 2024 · Performance
- added ValueCommerce May 2024 · Affiliate programs
2023 2 added · 1 dropped
- added Google Tag Manager Aug 2023 · Tag managers
- dropped C Apr 2023 · Programming languages
- added C Feb 2023 · Programming languages
2022 4 added · 4 dropped
- dropped core-js Dec 2022 · JavaScript libraries
- dropped Google Tag Manager Dec 2022 · Tag managers
- added RSS Dec 2022 · Miscellaneous
- added Moshimo Sep 2022 · Affiliate programs
- added Open Graph Sep 2022 · Miscellaneous
- dropped Google Remarketing Tag Aug 2022 · Retargeting
- dropped Tailwind CSS Aug 2022 · UI frameworks
- added Xserver Aug 2022 · Hosting