Technology history for bt21.jp

Stack size over time

From 12 detected technologies in Mar 2024 to 12 in Jun 2026 (peak 13).

Currently detected

• HTTP/3 since Mar 2024
• Google Cloud CDN since Mar 2024
• Google Font API since Mar 2024
• Google Tag Manager since Mar 2024
• Open Graph since Mar 2024
• Vue.js since Mar 2024
• Nuxt.js since Mar 2024
• STUDIO since Mar 2024
• Firebase since Mar 2024
• Google Analytics since Mar 2024
• Google Cloud since Mar 2024
• Node.js since Mar 2024

Previously used

• Priority Hints Feb 2026 to Mar 2026 · 1 mo

Timeline