indexo.dev

duha-kristal.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 479 ms crawled 2026-06-01

CZ · 109.123.222.148 · AS15685 CASABLANCA INT a.s.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Duha Křišťál Lutín – Sdružení dětí a mládeže pro volný čas, přírodu a recesi
Language
cs
Generator
WordPress 7.0
Canonical
https://www.duha-kristal.cz/
Feeds

Technology

Server
Apache
CMS
WordPress 7.0
jQuery
3.7.1
Fonts
  • Google Fonts

Third-party hosts loaded (1)

  • fonts.googleapis.com×3

Social

Registration

Registrar
REG-ACTIVE24
Created
2011-07-19
Expires
2026-07-18 45 days left
Updated
2026-01-12
Name servers
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 1 mail.duha-kristal.cz

Email authentication weak

SPF
v=spf1 mx -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E7
from 2026-04-27 to 2026-07-26
Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.duha-kristal.cz/

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

Links to (9)

Linked from (1)