What powers 12krwin.com?

Last seen Jul 2026 · 18 technologies across 10 categories

Analytics

Naver Analytics
since Jul 2026

CDN

cdnjs
since Oct 2023
Cloudflare
since Oct 2023
jsDelivr
since Jun 2025

Font scripts

Google Font API
since Oct 2023

Issue trackers

Sentry
since Sep 2025

JavaScript frameworks

React
since Oct 2023

JavaScript libraries

core-js v2.6.12
since Oct 2023
crypto-js
since Oct 2023
Hammer.js v2.0.7
since Oct 2023
Lodash v4.17.4
since Oct 2023
PubSubJS
since Oct 2023
Swiper
since Oct 2023

Miscellaneous

PWA
since Oct 2023
Webpack
since Oct 2023

Performance

Priority Hints
since Oct 2024

Security

HSTS
since Oct 2023

UI frameworks

Animate.css
since Oct 2023

AI Crawlers

Blocks 18 of 33 AI crawlers we track by name in its robots.txt. Checked Aug 2026.

Training crawlers

  • AI2Bot Blocked
  • Applebot-Extended Blocked
  • Bytespider Blocked
  • CCBot Blocked
  • ClaudeBot Blocked
  • cohere-training-data-crawler Blocked
  • Diffbot Blocked
  • FacebookBot Blocked
  • Google-Extended Blocked
  • GPTBot Blocked
  • ImagesiftBot Blocked
  • Webzio-Extended Blocked

Search and AI assistants

  • Amazonbot Blocked
  • DuckAssistBot Blocked
  • PerplexityBot Blocked
  • PetalBot Blocked
  • YouBot Blocked

User-request fetchers

  • ChatGPT-User Blocked

The other 15 AI crawlers we track are not mentioned and stay allowed by default.

  • robots.txt found
  • llms.txt not checked
  • ai.txt not checked

See who blocks each AI crawler across the web

AI Crawlers

18 of 33 AI crawlers blocked

Full breakdown

Audience

  • 100% phone
  • South Korea

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

1.33 / 10 · ranked #8,229,280 of all domains

7 referring domains · OpenPageRank

Core Web Vitals

LCP2.7 s
INP175 ms
CLS0

Real user p75, Chrome UX Report, Aug 2026.

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