What powers 
redwhistle.org?
Last seen Aug 2026 · 16 technologies across 9 categories
Analytics
CDN
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
Security
Web frameworks
Web servers
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
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 66% desktop
- 34% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.51 / 10 · ranked #157,224 of all domains
135 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Korean
- Weight: 14.4 MB · 124 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 레드휘슬
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on NBPAP-AS-AP NAVER BUSINESS PLATFORM ASIA PACIFIC PTE. LTD. (223.130.129.84)
- DNS: nurihosting.com
- Email: redwhistle.org
- Email security: SPF (soft fail), no DMARC record
- SSL: DigiCert, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 6,742,396, 6 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| cloud.redwhistle.org | 15 |
| www.redwhistle.org | 6 |