indexo.dev

zs-tremosnice.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 1663 ms crawled 2026-05-30

SK · 37.9.175.180 · AS51013 WebSupport s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
ZŠ Třemošnice.cz – Základní škola Třemošnice
Language
cs
Generator
WordPress 7.0
Canonical
https://www.zs-tremosnice.cz/
Feeds

Technology

Server
openresty
CMS
WordPress 7.0
jQuery
3.7.1

Third-party hosts loaded (2)

  • gmpg.org×1
  • maps.google.com×1

Contact

Phone

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 0 zstremosnice-cz0e.mail.protection.outlook.com
Verified for
  • Google
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.reservanto.cz include:spf.protection.outlook.com include:_spf.websupport.cz -all
strict (-all)
DMARC
not published
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3+/iL2qvjzfLM4NVv0VwL7dp+OlqptosFqoZ3TQm+r92vp+t93DfG3pHyM1S7JAXoVteGzkllBn2kt…
selectors probed

Certificate (current)

R12
from 2026-05-18 to 2026-08-16
Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.zs-tremosnice.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 (2)