What powers rfsemi.co.kr?
Last seen Sep 2026 · 12 technologies across 9 categories
Analytics
Naver Analytics
since Jun 2023
CDN
jsDelivr
since Jun 2023
CMS
Gnuboard
since Jun 2023
Databases
MySQL
since Jun 2023
Font scripts
Font Awesome
since Jun 2023
JavaScript libraries
Programming languages
PHP
since Mar 2022
Security
HSTS
since Feb 2026
Web servers
Apache HTTP Server
since Mar 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.94 / 10 · ranked #616,981 of all domains
71 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Korean
- Weight: 12.8 MB · 49 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Korea Telecom (183.111.169.65)
- DNS: tongkndesign.com
- Email: dooray.com
- Email security: no SPF record, no DMARC record
- SSL: GlobalSign, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 245,638, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| rfsemi.co.kr | 11 |
| www.rfsemi.co.kr | 11 |