What powers javstream.com?
Last seen Aug 2026 · 11 technologies across 9 categories
Advertising
TrafficStars
since Aug 2026
Analytics
Google Analytics
since Jan 2019
CDN
Cloudflare
since Aug 2023
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Aug 2026
Programming languages
UI frameworks
Bulma
since Jun 2023
Video players
VideoJS
since Aug 2026
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 88% desktop
- 12% phone
Japan
South Korea
Indonesia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.28 / 10 · ranked #59,234,483 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- CDN: Cloudflare
- Weight: 1.2 MB · 59 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Aug 2026.