What powers opticis.com?
Last seen Sep 2026 · 13 technologies across 8 categories
Analytics
CDN
Cloudflare
since Oct 2025
JavaScript libraries
Miscellaneous
Open Graph
since Apr 2023
Programming languages
PHP
since Sep 2021
Security
Cloudflare Bot Management
since Oct 2025
reCAPTCHA
since Sep 2021
Tag managers
Google Tag Manager
since Sep 2021
Web servers
Apache HTTP Server
since Sep 2021
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 83% desktop
- 17% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.12 / 10 · ranked #3,281,723 of all domains
24 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 17.6 MB · 89 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on LGDACOM LG DACOM Corporation (211.47.74.39)
- DNS: gabia.co.kr
- Email: daouoffice.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Sectigo, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 11,744,272, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted