indexo.dev

vkcjh.cz

.cz crawl

First seen 2026-05-29 · Last seen 2026-05-31 · ok HTTP/1.1 200 1443 ms crawled 2026-05-31

CZ · 81.91.86.14 · AS39790 Web4U s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Úvod - VKCJH
Description
Vzdělávací a kulturní centrum Jindřichův Hradec, p.o.
Language
cs

Technology

Server
openresty
PHP
7.4.33 end of life
jQuery
1.4.1 known XSS (<3.5)
Stack
PHP
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts
Social widgets
  • YouTube Embed
Third-party hosts loaded (9)
  • cdnjs.cloudflare.com×5
  • code.jquery.com×2
  • stackpath.bootstrapcdn.com×2
  • ajax.googleapis.com×1
  • cdn.jsdelivr.net×1
  • fonts.googleapis.com×1
  • www.googletagmanager.com×1
  • www.termsfeed.com×1
  • www.youtube.com×1

Registration

Registrar
REG-WEB4U
Created
2019-10-24
Expires
2026-10-24 145 days left
Updated
2022-01-20
Name servers
  • ns2.web4u.cz
  • ns.web4u.cz

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
MX
  • 10 vkcjh-cz.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-09 to 2026-08-07
Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.vkcjh.cz/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (13)

Linked from (1)