indexo.dev

trezon.cz

.cz crawl

First seen 2026-06-04 · Last seen 2026-06-04 · ok HTTP/1.1 200 490 ms crawled 2026-06-04

CZ · 62.109.150.65 · AS29134 Webglobe, s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Trezon | Trezon.cz - chytrý redakční systém
Description
Redakční systém Trezon, kvalitní webové stránky
Language
cs

Technology

Server
nginx
Stack
PHP
Analytics
  • Google Tag Manager
Fonts
  • Font Awesome
  • Google Fonts

Third-party hosts loaded (3)

  • fonts.googleapis.com×1
  • use.fontawesome.com×1
  • www.googletagmanager.com×1

Contact

Email
Phone

DNS records live

NS
  • ns.stable.cz
  • ns.stable.sk
MX
  • 10 mx.stable.sk
  • 5 mx.stable.cz

Email authentication weak

SPF
v=spf1 a mx ip4:89.221.213.35 ~all
softfail (~all)
DMARC
not published
DKIM
  • default: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCsqPXOXXTHjaqC+ji4IV35xXJ8/799COxyr+Hf0WRqGgl3wgK0OI5ZFAQ3XXMyXhl1EeYcJLOEoy9YatoX2D…
selectors probed

Certificate (current)

R12
from 2026-03-30 to 2026-06-28
Expires in 23 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://trezon.cz/

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN

Linked from (1)