What powers karuta-japan.com?
Last seen Aug 2026 · 13 technologies across 11 categories
CDN
Google Cloud CDN
since Sep 2025
Databases
Firebase
since Sep 2025
Font scripts
Google Font API
since Sep 2025
IaaS
Google Cloud
since Sep 2025
JavaScript frameworks
Miscellaneous
HTTP/3
since Sep 2025
Open Graph
since Jan 2023
Page builders
STUDIO
since Sep 2025
Performance
Google Cloud Trace
since Aug 2026
Programming languages
Node.js
since Sep 2025
Tag managers
Google Tag Manager
since Jan 2023
Video players
YouTube
since Sep 2025
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Aug 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Open Page Rank
0.10 / 10 · ranked #99,917,801 of all domains
0 referring domains · OpenPageRank
Page
- Language: Japanese
- CDN: Google
- Weight: 3.5 MB · 104 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
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Recent changes
- detected Google Cloud Trace Aug 2026
- dropped Priority Hints Aug 2026
- dropped Amazon CloudFront Dec 2025
- dropped Amazon EC2 Dec 2025
- dropped Amazon Web Services Dec 2025
- dropped Apache HTTP Server Dec 2025
- dropped cdnjs Dec 2025
- dropped Cloudflare Dec 2025
- dropped Google Analytics Dec 2025
- dropped Google Hosted Libraries Dec 2025
- dropped jQuery Dec 2025
- dropped PHP Dec 2025
- dropped Slick Dec 2025