indexo.dev

dvi.cz

.cz crawl

First seen 2026-05-20 · Last seen 2026-05-27 · ok HTTP/1.1 200 1093 ms crawled 2026-05-27

CZ · 82.117.128.147 · AS25512 CD-Telematika a.s.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Dopravní vzdělávací institut a.s. - ÚVOD
Language
cs-CZ
Generator
Joomla! - Open Source Content Management

Technology

Server
Apache
CMS
Joomla
Analytics
  • Google Tag Manager

Third-party hosts loaded (4)

  • c.seznam.cz×2
  • api.mapy.cz×1
  • api4.mapy.cz×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone

Registration

Registrar
REG-INTERNET-CZ
Created
2005-09-14
Expires
2026-09-13 104 days left
Updated
2026-05-06
Name servers
  • ns1.cdt.cz
  • ns2.cdt.cz

DNS records live

NS
  • ns1.cdt.cz
  • ns2.cdt.cz
MX
  • 10 smtp.cdtnet.cz
TXT
  • _ru9zvekh636dustc58naiumkvxjzcl1
Verified for
  • Cisco

Email authentication partial

SPF
v=spf1 mx a:smtp.cdtnet.cz a:ncmail.ncompany.cz a:mail.itutor.cz ip4:82.117.128.37/32 ip4:81.19.46.20/32 ip4:81.19.46.25/32 ip4:81.19.46.4/32 include:spf.smartemailing.cz ~all
softfail (~all)
DMARC
v=DMARC1; p=none; rua=mailto:dmarc+682985@smartemailing.cz; fo=1
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

GeoTrust TLS RSA CA G1
from 2026-04-16 to 2026-11-01
Expires in 153 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (4)

Linked from (1)