cra.cz

.cz crawl

First seen 2026-05-12 · Last seen 2026-05-18 · ok HTTP/1.1 200 928 ms crawled 2026-05-18

CZ · 82.99.169.74 · AS25248 RADIOKOMUNIKACE a.s.

Reputation 75/100 listed in spam blocklist

Classifying

HTML metadata

Title: Datové centrum, přenos dat, Cloud a IoT | České Radiokomunikace
Description: Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. Převádíme technologické trendy do inovativních mediálních, telekomunikačních a IT infrastrukturních služeb.
Language: cs
Canonical: https://www.cra.cz/

Open Graph

url: https://www.cra.cz/
title: Datové centrum, přenos dat, Cloud a IoT
description: Jsme poskytovatelem unikátní televizní, rozhlasové a internetové infrastruktury. Převádíme technologické trendy do inovativních mediálních, telekomunikačních a IT infrastrukturních služeb.

Technology

Analytics

Google Tag Manager

Cookie consent

Cookiebot

Third-party hosts loaded (2)

consent.cookiebot.com×1
www.googletagmanager.com×1

Social

Contact

Address: Skokanská 2117/1, 169 00, Praha 6, CZ

Registration

Registrar

REG-INTERNET-CZ

Created

1997-06-07

Expires

2026-10-12 145 days left

Updated

2022-04-01

Name servers

ns1.bluetone.cz
ns2.bluetone.cz
ns.bluetone.cz

DNS records live

NS

ns.bluetone.cz
ns1.bluetone.cz
ns2.bluetone.cz

MX

5 cra-cz.mail.protection.outlook.com

TXT

Show 4 TXT records

MS=C3C0D2A0EAA835A9F54083544D636256CD6A6D3D
google-site-verification=WAntfee22542ETyfcl2Qt0dkUriD48V1a9NTB-AgZl0
apple-domain-verification=gAXG04Ntm7enEQDY
atlassian-domain-verification=KILaLHkF4XX4BASI5S2aFVwKBcXIjy/vGagbV1F591crB1Lyd8mWcW4AB0H/rQ3g

Email authentication strong

SPF

v=spf1 include:el-dokument.net include:servers.mcsv.net include:spf.protection.outlook.com include:smtp.cra.cz include:spf.emailkampane.cz include:regulus.bluetone.cz include:cuda2.bluetone.cz include:_spf.eu.mailgun.org ip4:89.221.218.39 ip4:82.99.169.66 -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:mailValidity@cra.cz; ruf=mailto:mailValidity@cra.cz; fo=1;

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCVlsEbHv0u5OT1vIQ30AAHM4GibPsHX5tzPAv0pJDWdY1xCZeFWYR1c2CKD74I+WuhzK0yCdVq/1W3XNws1J…
k1: k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUo…
s1: k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDMEJB3UOR5yybvdI4trfGEb5KpYtmYywsqnlqncWvfK+6BEk/pv8fJit2+4yP2NSUa9iKSLyHrASiK6OTUBDFfEqheV7Qi…

selectors probed

Certificate (current)

WR1

from 2026-04-04 to 2026-07-03

Expires in 45 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present

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

Header values

referrer-policy: same-origin
x-frame-options: SAMEORIGIN
permissions-policy: accelerometer=(), ambient-light-sensor=(), battery=(), camera=(), display-capture=(), geolocation=(self), gyroscope=(), magnetometer=(), microphone=(), midi=(), usb=(),notifications=(self),push=(),sync-xhr=(self),speaker=(self),vibrate=(self),fullscreen=(self),payment=(self)
x-content-type-options: nosniff
content-security-policy: upgrade-insecure-requests;
strict-transport-security: max-age=63072000; includeSubdomains; preload