What powers sum37.com?
Last seen Sep 2026 · 32 technologies across 14 categories
A/B Testing
Analytics
CDN
Customer data platform
Ecommerce
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
Security
Segmentation
Tag managers
Web servers
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 100% phone
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.57 / 10 · ranked #22,674,365 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Korean
- Weight: 24.7 MB · 250 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Korea Telecom (183.111.139.229)
- DNS: Cafe24
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 12,680,131, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Sentry May 2026
- detected Svelte May 2026
- detected lit-element Apr 2026
- detected lit-html Apr 2026