What powers the1seoul.com?
Last seen Aug 2026 · 24 technologies across 13 categories
Analytics
Development
Turbopack
since Aug 2026
Issue trackers
Sentry
since Aug 2026
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Amazon Web Services
since Aug 2025
Performance
Priority Hints
since Aug 2025
Programming languages
Node.js
since Aug 2025
Security
HSTS
since Aug 2026
Tag managers
Google Tag Manager
since Aug 2022
Video players
YouTube
since Jul 2023
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
- Sep 2026 llms.txt appeared
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 98% phone
- 2% desktop
South Korea
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.39 / 10 · ranked #37,664,369 of all domains
1 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.8 s |
| INP | 300 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 33.9 MB · 107 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected HSTS Aug 2026
- detected Lenis Aug 2026
- detected Sentry Aug 2026
- detected Turbopack Aug 2026
- detected core-js Jul 2026
- detected Google Tag Manager Jul 2026
- detected Microsoft Clarity Jul 2026
- detected Socket.io Jul 2026
- detected Naver Analytics Apr 2026
- dropped Naver Analytics Mar 2026
- detected Kakao Feb 2026
- detected Naver Analytics Nov 2025
- dropped Kakao Oct 2025