crnet.cz

.cz crawl

First seen 2026-05-28 · Last seen 2026-05-30 · ok HTTP/1.1 200 989 ms crawled 2026-05-30

CZ · 77.93.218.107 · AS24971 MasterDC s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: Tvorba webových stránek - CRnet.cz
Description: Tvorba web stránek a grafického designu na míru. Internetové portály a e-shopy.

Open Graph

title: Tvorba webových stránek - CRnet.cz
site name: CRnet, s.r.o.

Technology

Server: Apache
CMS: Joomla
PHP: 7.4.33 end of life
jQuery: 1.11.2 known XSS (<3.5)
Stack: PHP

Fonts

Google Fonts

Third-party hosts loaded (3)

cdnjs.cloudflare.com×3
api4.mapy.cz×1
fonts.googleapis.com×1

Registration

Registrar

REG-INTERNET-CZ

Created

1999-12-20

Expires

2026-12-19 201 days left

Updated

2006-12-28

Name servers

pns.tcmp.cz
sns.tcmp.cz

DNS records live

NS

pns.tcmp.cz
sns.tcmp.cz

MX

10 pns.tcmp.cz

Email authentication weak

SPF: v=spf1 a mx ip4:77.93.218.103 ip4:77.93.218.104 ip4:77.93.218.105 ip4:77.93.218.106 ip4:77.93.218.109 ip4:77.93.218.110 ~all
softfail (~all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-05-09 to 2026-08-07

Expires in 68 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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