matfyz.cz

.cz crawl

First seen 2026-05-19 · Last seen 2026-05-29 · ok HTTP/1.1 200 1407 ms crawled 2026-05-26

CZ · 195.113.27.221 · AS2852 CESNET z.s.p.o.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Matfyz.cz
Description: Matematicko-fyzikální fakulta Univerzity Karlovy
Language: cs

Open Graph

title: Matfyz.cz
description: Matematicko-fyzikální fakulta Univerzity Karlovy

Technology

Server: nginx
CMS: Joomla
PHP: 8.2.30 security-only
jQuery: 3.2.1 known XSS (<3.5)
Stack: PHP

Analytics

Google Tag Manager

Third-party hosts loaded (2)

cdn.jsdelivr.net×2
www.googletagmanager.com×1

Social

Registration

Registrar

REG-INTERNET-CZ

Created

2000-11-14

Expires

2032-11-14 2358 days left

Updated

2014-10-06

Name servers

david.ruk.cuni.cz
golias.ruk.cuni.cz
ns.ms.mff.cuni.cz
ns.n.mff.cuni.cz
sns.ms.mff.cuni.cz

DNS records live

NS

david.ruk.cuni.cz
golias.ruk.cuni.cz
ns.ms.mff.cuni.cz
ns.n.mff.cuni.cz
sns.ms.mff.cuni.cz

MX

10 pluto.ms.mff.cuni.cz
20 akamas.n.mff.cuni.cz

Email authentication partial

SPF: v=spf1 mx ip4:195.113.20.0/24 ip6:2001:718:1e03:801::/120 ?all
neutral (?all)
DMARC: v=DMARC1; p=none; sp=none; rua=mailto:dmarc-reports@matfyz.cz
policy: none (monitoring only) · sp=none
DKIM: no key found at common selectors

Certificate (current)

GEANT TLS RSA 1

from 2026-04-15 to 2026-10-31

Expires in 153 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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