What powers 
radiocrazy.fm?
Last seen Aug 2026 · 13 technologies across 10 categories
Analytics
Google Analytics
since Jan 2019
Microsoft Clarity
since Feb 2025
Authentication
Google Sign-in
since Nov 2024
CDN
Google Hosted Libraries
since Feb 2022
Font scripts
Font Awesome
since Jan 2019
Google Font API
since Jan 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Tag managers
Google Tag Manager
since Feb 2022
UI frameworks
Video players
YouTube
since Nov 2024
Web servers
Apache HTTP Server
since Jan 2019
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 82% phone
- 18% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.75 / 10 · ranked #277,510 of all domains
143 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 5.5 MB · 98 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on FUTURE Future Spirits Co.,Ltd. (219.99.173.61)
- DNS: future-s.com
- Email: fsi.ne.jp
- Email security: SPF (soft fail), no DMARC record
- SSL: GlobalSign, RSA 2048, expires Apr 2027
- Common Crawl link graph: rank 205,405, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| radiocrazy.fm | 13 |
| www.radiocrazy.fm | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- detected core-js Oct 2025
- detected Google Sign-in Oct 2025
- detected YouTube Oct 2025