What powers challenge100days.net?
Last seen Aug 2026 · 12 technologies across 10 categories
CDN
Google Cloud CDN
since Jul 2026
Databases
Firebase
since Jul 2026
Font scripts
Google Font API
since Jul 2026
IaaS
Google Cloud
since Jul 2026
JavaScript frameworks
Miscellaneous
HTTP/3
since Jul 2026
Open Graph
since Jul 2026
Page builders
STUDIO
since Jul 2026
Performance
Google Cloud Trace
since Jul 2026
Programming languages
Node.js
since Jul 2026
Tag managers
Google Tag Manager
since Jul 2026
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.35 / 10 · ranked #44,637,990 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.3 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 10.6 MB · 82 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.