What powers kcrlab.co.kr?
Last seen Jul 2026 · 18 technologies across 13 categories
Analytics
Caching
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Page builders
Performance
Programming languages
SEO
Tag managers
Web servers
AI Crawlers
Blocks 4 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- GPTBot Blocked
Search and AI assistants
- Amazonbot Blocked
- OAI-SearchBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 29 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- ai.txt not found
AI Crawlers
4 of 33 AI crawlers blocked
Standards: llms.txt
Audience
- 93% desktop
- 7% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.92 / 10 · ranked #14,237,390 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Korean (South Korea)
- Weight: 0.9 MB · 64 requests
- WordPress theme: twentytwentyfive (child: 2025-child) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- 케이씨알(KCR)
From the homepage's own structured data (Sep 2026).
Infrastructure
- DNS: cafe24dns.co.kr
- Email: mailplug.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 24,456,110, 2 hosts
- Verified with: Brevo
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Autoptimize Jan 2026
- dropped Google Font API Jan 2026
- detected Redis Dec 2025
- detected Redis Object Cache Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025