indexo.dev

stredniskoly.eu

.eu crawl

First seen 2026-06-03 · Last seen 2026-06-04 · ok HTTP/1.1 200 761 ms crawled 2026-06-04

CZ · 91.239.201.12 · AS60606 PRO-ZETA a.s.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Střední školy, gymnázia, učiliště – Stredniskoly.eu
Description
Katalog středních škol, gymnázií a učilišť v České republice.
Language
cs-cz

Open Graph

url
https://www.stredniskoly.eu/
title
Střední školy, gymnázia, učiliště – Stredniskoly.eu
site name
Stredniskoly.eu

Technology

Server
nginx
PHP
8.2.31 security-only

DNS records live

NS
  • ns1.thinline.cz
  • ns2.thinline.cz
  • ns3.cesky-hosting.eu
MX
  • 10 mx1d10.thinline.cz
  • 20 mx1b20.thinline.cz

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-04-07 to 2026-07-06
Expires in 31 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.stredniskoly.eu/

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

Links to (3)

Linked from (1)