okd.cz

.cz crawl

First seen 2026-05-22 · Last seen 2026-05-31 · ok HTTP/1.1 200 2472 ms crawled 2026-05-28

CZ · 217.16.182.92 · AS43541 VSHosting s.r.o.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title: OKD | OKD je jediným producentem černého uhlí v České republice
Language: cs

Social

Registration

Registrar

REG-ZONER

Created

1997-01-14

Expires

2026-10-05 126 days left

Updated

2019-01-15

Name servers

ns1.k2.cz
ns2.k2.cz
ns2.poda.cz
ns3.k2.cz
ns3.poda.cz

DNS records live

NS

ns1.k2.cz
ns2.k2.cz
ns3.k2.cz
ns3.poda.cz

MX

0 okd-cz.mail.protection.outlook.com

TXT

_ypi0zcd3awcr338e75fri2tsjs81tan
MS=891113E55A224074171D00236DF47F7EC05AB346
NPIgJqHb0QNBMcHFl0hBxrwmydKWfy+h8czVdK9KfoDGLbqB0WJTsf70yIsp66v4fTdgNJi1MbqcR6dlDbQrwg==

Verified for

Microsoft 365

Email authentication strong

SPF

v=spf1 a mx ip4:178.248.12.195 ip4:178.248.9.116 ip4:178.248.12.205 ip4:178.248.12.206 include:sendgrid.net include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; rua=mailto:postmaster@okd.cz

policy: quarantine

DKIM

selector1: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxJE38qV/umSQXvWt68eOLRBAHWpPj2dgJoG2cPfYwYPoR5H3fA4QAjbk75lrbFhHmbmbjB7iBBwy5h…
s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEArHVXVc6oRIPZBOXYZNL+JHFZG3qCFqslPxTqBPoZEJ/xanm4cvTAvcF4mJGx8e0Qf7cDoUe41wlM8r+W59…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA02FMd0EYCC9Bb9bBH1QmbgD9PBjR6wquuj41IJkuf3oe/GNUaHgATcD0vqAeyG6yI0rcsAwleK/O65+5+q…

selectors probed

Certificate (current)

R12

from 2026-04-13 to 2026-07-12

Expires in 42 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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