cdt.cz

.cz dns crawl

First seen 2026-05-16 · Last seen 2026-05-31 · ok HTTP/1.1 200 2801 ms crawled 2026-05-20

CZ · 82.117.148.155 · AS25512 CD-Telematika a.s.

Reputation 100/100

Classifying

HTML metadata

Title: ČD Telematika
Language: en

Open Graph

url: https://www.cdt.cz/en/
title: ČD Telematika

Technology

CMS: Gatsby

Analytics

Google Tag Manager

Third-party hosts loaded (2)

cdn.jsdelivr.net×2
www.googletagmanager.com×1

Social

Contact

Email

Phone

Address

Pod Táborem 369/8a190 00 Praha 9

Registration

Registrar

REG-INTERNET-CZ

Created

2000-09-07

Expires

2026-09-06 97 days left

Updated

2022-11-26

Name servers

ns1.cdt.cz
ns2.cdt.cz

DNS records live

NS

ns1.cdt.cz
ns2.cdt.cz

MX

10 mailgw1.cdt.cz
20 mailgw2.cdt.cz

TXT

Show 5 TXT records

_ygivoojztkwzy37gz13tvv61dbeoihy
_tdnudvi57p9yf0i87c7nq4ff6vmded0
PR2-MLD-P03
MS=9E5CD30317FC9C12FB641204F4567F88614F09B8
_1hrz1dr5f4z88b1okyiionox61w8vyg

Verified for

Atlassian
Microsoft 365

Email authentication strong

SPF

v=spf1 mx a:mailgw1.cdt.cz a:mailgw2.cdt.cz a:smtp.cdtnet.cz ip4:82.117.128.37/32 ip4:81.19.33.2/32 ip4:81.19.34.2/32 ip4:81.19.46.20/32 ip4:81.19.46.25/32 ip4:81.19.46.4/32 ip6:2001:1a48:0:1::2/64 ip6:2001:1a48:0:2::2/64 include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; sp=quarantine; pct=100

policy: quarantine · sp=quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8bk+SMc6clrXOM4mz5a8YJ2yLckc5moRZ8aDjl/XcUAYUdmUpq+P3b3dmkwp8iNy0bctJgvPsnc1x2lvIB4…
selector2: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8xfoODu7Ol2ccf04TSNlPMX4mq5faEbrExFzMnm1+FmnjpMyJSUu6yC01knYbuVmtGHwq/YgeKmzPsik/n5…

selectors probed

Certificate (current)

from 2026-05-19 to 2026-08-17

Expires in 77 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://cdt.cz/en/

present

strict-transport-security
x-frame-options
x-content-type-options
referrer-policy
permissions-policy

findings

missing Content Security Policy

Header values

referrer-policy: same-origin
x-frame-options: SAMEORIGIN
permissions-policy: geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self "https://www.youtube.com"),payment=()
x-content-type-options: nosniff
strict-transport-security: max-age=15778463;