mklusak.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-31 · ok HTTP/1.1 200 1405 ms crawled 2026-05-30

CZ · 62.109.154.132 · AS29134 Webglobe, s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: Marek Klusák - programátor a webdesigner
Canonical: https://www.mklusak.cz/

Technology

Server: nginx
CMS: WordPress
jQuery: 3.7.1

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

DNS records live

NS

ns1.savana.cz
ns2.savana.cz
ns3.savana.cz

MX

10 mx1.savana.cz
20 mx2.savana.cz

Email authentication weak

SPF

v=spf1 include:_spf.webglobe.com mx ip4:217.16.187.41/24 ip4:217.16.187.42/24 ip4:217.16.187.43/24 ip4:217.16.187.44/24 ip4:217.16.187.45/24 include:_spf.google.com ~all

softfail (~all)

DMARC

not published

DKIM

default: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA6WwJq4Y7o5zDRM0IVWg2eq5Us+KIMURxFD2eYVUcsJ4BMEIhc9GEu/bfzfwyJ/E1aeHTaJjPt67EsF…

selectors probed

Certificate (current)

R12

from 2026-04-01 to 2026-06-30

Expires in 29 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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