What powers lookoptical.kr?
Last seen Sep 2026 · 34 technologies across 14 categories
Advertising
Analytics
CDN
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
Live chat
Miscellaneous
PaaS
Security
Video players
Web servers
Widgets
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- ClaudeBot Allowed
- Google-Extended Allowed
- GPTBot Allowed
Search and AI assistants
- PerplexityBot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 28 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 53% desktop
- 47% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.60 / 10 · ranked #21,967,601 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 75 ms |
| CLS | 0.3 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Korean
- Weight: 38.8 MB · 541 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Korea Telecom (183.111.139.227)
- DNS: Cafe24
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 29,005,572, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| lookoptical.kr | 33 |
| www.lookoptical.kr | 22 |
Full technology history →
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Recent changes
- dropped Mautic Sep 2026