What powers ringsim.co.kr?
Last seen Aug 2026 · 20 technologies across 11 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
CDN
Cloudflare
since Apr 2024
Google Hosted Libraries
since Dec 2024
Comment systems
Font scripts
Font Awesome
since Nov 2024
Google Font API
since Jul 2024
JavaScript graphics
ECharts
since Nov 2024
JavaScript libraries
Maps
Miscellaneous
Programming languages
Security
Cloudflare Bot Management
since Apr 2025
UI frameworks
Bootstrap
since Jul 2024
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
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.48 / 10 · ranked #25,692,937 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 6.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 6200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 1.4 MB · 40 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.16.183, IPv6)
- DNS: Cloudflare DNS
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 14,872,215, 3 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sa.ringsim.co.kr | 19 |
| esim.ringsim.co.kr | 6 |
| www.ringsim.co.kr | 3 |
Full technology history →
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Recent changes
- detected Cloudflare Browser Insights Nov 2025