indexo.dev

zsdedina.cz

.cz crawl

First seen 2026-06-04 · Last seen 2026-06-04 · ok HTTP/1.1 200 475 ms crawled 2026-06-04

SK · 37.9.175.212 · AS51013 WebSupport s.r.o.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
ZŠ Dědina
Language
en-US
Generator
WordPress 7.0
Canonical
https://zsdedina.cz/

Technology

Server
openresty
CMS
WordPress 7.0
jQuery
3.7.1
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • fonts.googleapis.com×3
  • fonts.gstatic.com×2
  • my.matterport.com×1
  • www.googletagmanager.com×1

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 1 smtp.google.com

Email authentication strong

SPF
v=spf1 include:spf.skolaonline.cz include:_spf.google.com ~all
softfail (~all)
DMARC
v=DMARC1; p=reject; pct=100; fo=1; ruf=mailto:dmarc@afoffice.cz
policy: reject (enforced)
DKIM
  • default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAt8wTd3oQ0KzwPpzMBg7vudtvOSbmNRf1hXw+vFGYbmG0lRA2h+vwwxOiCYq665HsgQkCIkUG85k0h0…
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvr9A48VY6PxOqTeLcXFrz5TYwpugUHQp/DWEv2VSUmEMWfYcxpTH6MfDI8Qsdfqnj8FRXZlmiCfDQX…
selectors probed

Certificate (current)

R12
from 2026-05-26 to 2026-08-24
Expires in 81 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (4)

Linked from (2)