indexo.dev

comenius.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-31 · ok HTTP/1.1 200 599 ms crawled 2026-05-30

CZ · 89.221.216.136 · AS197019 WEDOS Internet, a.s.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
HOME - Comenius.cz
Description
COMENIUSKdyby se člověk přiučil každou hodinu byť jen jediné poučce nějaké vědy, jen jedinému pravidlu řemeslné práce, jen jedinému p
Language
cs

Open Graph

title
HOME - Comenius.cz
description
COMENIUSKdyby se člověk přiučil každou hodinu byť jen jediné poučce nějaké vědy, jen jedinému pravidlu řemeslné práce, jen jedinému p

Technology

Server
nginx
PHP
5.5.9 end of life
jQuery
1.7.2 known XSS (<3.5)
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • www.googletagmanager.com×1
  • www.termsfeed.com×1

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
MX
  • 10 antispam.livebox.email
Verified for
  • Google

Email authentication weak

SPF
v=spf1 a:posta.pixman.cz include:spf.box.cz ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-03 to 2026-08-01
Expires in 62 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 95/100 Checked live page: https://www.comenius.cz/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
findings
  • missing Permissions Policy
Header values
referrer-policy
strict-origin-when-cross-origin
x-frame-options
SAMEORIGIN
x-content-type-options
nosniff
content-security-policy
upgrade-insecure-requests;
strict-transport-security
max-age=16000000; includeSubDomains; preload;

Links to (2)

Linked from (3)