indexo.dev

shieldsystem.cz

.cz crawl

First seen 2026-06-01 · Last seen 2026-06-02 · ok HTTP/1.1 200 291 ms crawled 2026-06-02

US · 172.67.172.183 · AS13335 Cloudflare, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Shield system s.r.o.
Description
Firma Shield system s.r.o. se zabývá vývojem softwaru, kybernetickou bezpečností a výrobou hardwaru
Language
cs

Technology

CDN
Cloudflare
PHP
8.3.29 security-only
Stack
PHP
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • www.google.com×2
  • www.googletagmanager.com×1

Social

Contact

Phone

DNS records live

NS
  • kanye.ns.cloudflare.com
  • nelci.ns.cloudflare.com
MX
  • 10 32e223267bbdca34.mx2.emailprofi.seznam.cz
  • 20 32e223267bbdca34.mx1.emailprofi.seznam.cz
Verified for
  • Google

Email authentication weak

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

Certificate (current)

WE1
from 2026-05-29 to 2026-08-27
Expires in 76 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (2)

Linked from (1)

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