indexo.dev

dereza.cz

.cz crawl

First seen 2026-05-29 · Last seen 2026-05-29 · ok HTTP/1.1 200 641 ms crawled 2026-05-31

CZ · 77.78.106.36 · AS15685 CASABLANCA INT a.s.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Dereza – Stavební firma
Language
cs
Generator
WordPress 6.9.4
Canonical
https://dereza.cz/
Feeds

Technology

Server
nginx
CMS
WordPress 6.9.4
jQuery
3.7.1
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×2
  • www.google.com×2

DNS records live

NS
  • ns.grdns.cz
  • ns.grdns.it
MX
  • 10 gw.myexchange.cz
  • 20 gw2.myexchange.cz
Verified for
  • Microsoft 365

Email authentication strong

SPF
v=spf1 mx a:mail.dereza.cz a:gw.myexchange.cz -all
strict (-all)
DMARC
v=DMARC1; p=quarantine; rua=mailto:dmarc@dereza.cz
policy: quarantine
DKIM
  • s1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmJLcXVnRPR1bXDmaLZC6/xVcphRp3x6Mx7L3v8u4i84cTThRDYOPFWJJxb2QVfPdgJvv5hg8VrL0sL…
selectors probed

Certificate (current)

R13
from 2026-05-20 to 2026-08-18
Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)