indexo.dev

centr.cz

.cz crawl

First seen 2026-05-21 · Last seen 2026-05-30 · ok HTTP/1.1 200 519 ms crawled 2026-05-27

SK · 37.9.175.213 · AS51013 WebSupport s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
CENTR GROUP | Integrovaný facility management
Description
CENTR GROUP je váš partner pro bezpečnostní, technické a energetické služby s důrazem na kvalitu, inovace a spolehlivost.
Language
cs

Technology

Server
openresty
jQuery
3.7.1
Stack
PHP
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • fonts.gstatic.com×2
  • cdn.customgpt.ai×1
  • fonts.googleapis.com×1
  • www.googletagmanager.com×1

Social

Contact

Email
Phone

Registration

Registrar
REG-ACTIVE24
Created
1999-11-16
Expires
2030-11-15 1628 days left
Updated
2025-06-11
Name servers
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 0 centr-cz.mail.protection.outlook.com
Verified for
  • Google
  • Microsoft 365

Email authentication weak

SPF
v=spf1 ip4:193.85.193.178 ip4:213.210.159.21 ip4:213.210.154.37 ip4:62.209.211.101 include:spf.protection.outlook.com include:_spf.m1.websupport.sk -all
strict (-all)
DMARC
not published
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApyS6G51aN1s97zGCJW1dVRNf9FXqXKuoqJDfSmKN8eY70bJCFDPRoUPQuM4rqolC7ho/32icK6XjTc…
selectors probed

Certificate (current)

R12
from 2026-04-19 to 2026-07-18
Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.centr.cz/

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • missing Content Security Policy
Header values
referrer-policy
no-referrer
x-frame-options
SAMEORIGIN
permissions-policy
unsized-media=(), geolocation=*, microphone=("self" "https://www.centr.cz/")
x-content-type-options
nosniff
strict-transport-security
max-age=31536000; includeSubDomains; preload

Links to (2)

Linked from (3)