indexo.dev

zstgm-praha.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 1627 ms crawled 2026-06-01

CZ · 77.78.76.165 · AS15685 CASABLANCA INT a.s.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Hlavní stránka | skoly
Language
cs

Technology

Server
Apache
Stack
PHP
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×2
  • img.youtube.com×1

Social

Contact

Email
Phone

Registration

Registrar
REG-MEDIA4WEB
Created
2004-11-10
Expires
2026-11-09 159 days left
Updated
2006-09-18
Name servers
  • ns1.casablanca.cz
  • slave.casablanca.cz

DNS records live

NS
  • ns1.casablanca.cz
  • slave.casablanca.cz
MX
  • 1 aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 5 alt1.aspmx.l.google.com
Verified for
  • Google
  • Google Workspace
  • Microsoft 365

Email authentication weak

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

Certificate (current)

ZeroSSL RSA DV SSL CA 2
from 2026-05-16 to 2026-08-15
Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.zstgm-praha.cz/

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

Links to (12)

Linked from (1)