dumabyt.cz

HTML metadata

Technology

Server

nginx

CMS

WordPress 7.0

Analytics

• Google Tag Manager

Cookie consent

• Usercentrics

Fonts

• Adobe Fonts

Registration

Registrar

REG-ACTIVE24

Created

1998-12-23

Expires

2026-10-20 141 days left

Updated

2025-09-17

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

• 10 dumabyt-cz.mail.protection.outlook.com

Email authentication partial

SPF

v=spf1 mx a ip4:95.168.212.192/26 ip4:82.142.109.57 ip4:85.93.165.157 ip4:85.93.177.204 ip4:85.93.166.197 ip4:85.93.166.198 ip4:217.16.190.186 ip4:185.59.208.168 ip6:2a00:1ed0:84::b ?include:spf.smtp.cz include:spf.protection.outlook.com include:spf.,smartemailing.cz include:spf.smartemailing.cz -all

strict (-all)

DMARC

v=DMARC1; p=none; rua=mailto:dmarc+418232@smartemailing.cz; fo=1

policy: none (monitoring only)

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.dumabyt.cz/

present

• strict-transport-security
• x-frame-options
• x-content-type-options

findings

• missing Content Security Policy
• missing Referrer Policy
• missing Permissions Policy

Links to (15)

• xella.cz×1
• velux.cz×1
• terran.cz×1
• stavbaweb.cz×1
• smysluplnycelek.cz×1
• mujdumkrokzakrokem.cz×1
• mujdum.cz×1
• japcz.cz×1
• izos.cz×1
• imaterialy.cz×1
• heluz.cz×1
• ekonomicke-stavby.cz×1
• dzd.cz×1
• doerken.com×1
• bmone.cz×1

Linked from (4)

• bmone.cz×1
• stavbaweb.cz×1
• stavitel.cz×1
• imaterialy.cz×1