What powers heisenberg.kr?
Last seen Aug 2026 · 23 technologies across 14 categories
Analytics
Google Analytics
since Nov 2025
CDN
cdnjs
since Oct 2025
Cloudflare
since Oct 2025
CMS
Databases
MySQL
since Oct 2025
Font scripts
Twitter Emoji (Twemoji)
since Dec 2025
JavaScript frameworks
JavaScript libraries
Select2
since Oct 2025
Miscellaneous
Open Graph
since Nov 2025
PWA
since Oct 2025
Programming languages
PHP
since Oct 2025
Security
reCAPTCHA
since Jan 2026
UI frameworks
Bootstrap
since Oct 2025
Web servers
Apache HTTP Server
since Dec 2025
Webmail
Google Workspace
since Oct 2025
WordPress plugins
RankMath SEO
since Nov 2025
WooCommerce Subscriptions
since Oct 2025
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
- 49% phone
- 49% desktop
- 2% tablet
South Korea
United States
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.81 / 10 · ranked #16,451,487 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 16.7 MB · 125 requests
- WordPress theme: heisenberg · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Aug 2026.
Full technology history →
Report an incorrect detection
Recent changes
- detected Backbone.js Jul 2026
- detected WooCommerce Subscriptions Jul 2026
- dropped Nginx Jan 2026
- dropped OpenResty Jan 2026
- detected reCAPTCHA Jan 2026
- detected Apache HTTP Server Dec 2025
- dropped core-js Dec 2025
- dropped Moment.js Dec 2025
- dropped React Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025
- dropped Typekit Dec 2025
- dropped WooCommerce Subscriptions Dec 2025
- detected Google Analytics Nov 2025
- detected Open Graph Nov 2025
- detected RankMath SEO Nov 2025