onlineblackjack.cz

.cz crawl

First seen 2026-05-29 · Last seen 2026-05-31 · ok HTTP/1.1 200 838 ms crawled 2026-05-31

GB · 134.213.49.132 · AS15395 Rackspace Ltd.

Reputation 100/100

Classifying

HTML metadata

Title

Blackjack, online karetní hra | onlineblackjack.cz

Description

Blackjack, karetní hra v kasinu. Portál o hraní backjacku přes internet a mobil. Pravidla, herní strategie, tipy a zajímavosti z online kasin. ✔

Language

Canonical

https://www.onlineblackjack.cz/

Translations

Open Graph

title: Blackjack, online karetní hra | onlineblackjack.cz
description: Blackjack, karetní hra v kasinu. Portál o hraní backjacku přes internet a mobil. Pravidla, herní strategie, tipy a zajímavosti z online kasin. ✔

Technology

Server: Apache
PHP: 5.4.16 end of life
Stack: PHP

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (13)

static.casinosearch.eu×24
fonts.googleapis.com×2
ban.chance.cz×1
fonts.gstatic.com×1
www.facebook.com×1
www.googletagmanager.com×1
www.online-blackjack-gra.eu×1
www.onlineblackjack.ee×1
www.onlineblackjack.sk×1
www.onlineblackjackgame.eu×1
www.onlineblackjackspiel.eu×1
www.onlineigrablackjack.com×1
www.onlinespeleblackjack.eu×1

Social

DNS records live

NS

ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu

Verified for

Google

Email authentication no MX

SPF: not published
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

ZeroSSL RSA Domain Secure Site CA

from 2026-03-15 to 2026-06-14

Expires in 13 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present

strict-transport-security
content-security-policy

findings

missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

content-security-policy: upgrade-insecure-requests
strict-transport-security: max-age=31536000