indexo.dev

koreanschool.app

.app crawl

First seen 2026-04-25 · Last seen 2026-05-18 · ok HTTP/1.1 200 1034 ms crawled 2026-05-18

US · 104.21.11.163 · AS13335 Cloudflare, Inc.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
한국학교 학사 관리 서비스 | Korean School Management Servcice
Language
en

Technology

CDN
Cloudflare

Third-party hosts loaded (2)

  • cdn.jsdelivr.net×2
  • www.google.com×1

DNS records live

NS
  • linda.ns.cloudflare.com
  • norman.ns.cloudflare.com

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

WE1
from 2026-05-16 to 2026-08-14
Expires in 86 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.koreanschool.app/

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN

Links to (1)

Linked from (1)