What powers its21.co.kr?

Last seen Jul 2026 · 19 technologies across 11 categories

Analytics

Google Analytics
since Apr 2025
Naver Analytics
since Dec 2024

Ecommerce

Cart Functionality
since Dec 2024

Font scripts

Google Font API
since Dec 2024

JavaScript frameworks

React
since Dec 2024
styled-components v5.3.9
since Dec 2024

JavaScript libraries

core-js v3.45.1
since Dec 2024
fullPage.js
since Dec 2024
jQuery v1.11.1
since Jun 2020
Slick
since Dec 2024
Swiper
since Dec 2024

Live chat

Channel.io
since Dec 2024

Miscellaneous

Kakao
since Dec 2024
Open Graph
since Dec 2024
PWA
since Dec 2024

Programming languages

PHP
since Sep 2021

Tag managers

Google Tag Manager
since Apr 2025

Web servers

Apache HTTP Server
since Dec 2024

Widgets

FlexSlider
since Dec 2024

AI Crawlers

Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.

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

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Full breakdown

Audience

  • 100% desktop
  • South Korea

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

Open Page Rank

0.61 / 10 · ranked #21,758,051 of all domains

2 referring domains · OpenPageRank

Core Web Vitals

LCP0.1 s
CLS0
TTFB100 ms

Real user p75, Chrome UX Report, Sep 2026.

Infrastructure

  • Hosted on KINXIDC-AS-KR KINX (121.78.246.180)
  • DNS: hkcomms.co.kr
  • Email: mailplug.com
  • Email security: SPF (soft fail), no DMARC record
  • SSL: GoGetSSL, RSA 2048, expires Nov 2026
  • Common Crawl link graph: rank 7,645,049

DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted

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