jsemzhradce.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 1049 ms crawled 2026-05-30

NL · 104.46.44.78 · AS8075 Microsoft Corporation

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: JSEM Z HRADCE
Description: Komunitní portál
Language: cs

Open Graph

url: https://www.jsemzhradce.cz
title: JSEM Z HRADCE
site name: JSEM Z HRADCE
description: Komunitní portál

Technology

jQuery: 1.12.4 known XSS (<3.5)
Stack: ASP.NET

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (5)

fonts.googleapis.com×2
calendar.zoznam.sk×1
cdnjs.cloudflare.com×1
lifeintown.blob.core.windows.net×1
www.googletagmanager.com×1

Social

Contact

Email

Registration

Registrar

REG-WEB4U

Created

2016-02-14

Expires

2027-02-13 257 days left

Updated

2016-12-23

Name servers

ns2.web4u.cz
ns.web4u.cz

DNS records live

NS

ns.web4u.cz
ns2.web4u.cz

MX

10 mx.web4u.cz

Email authentication weak

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

Certificate (current)

GeoTrust TLS RSA CA G1

from 2026-03-09 to 2026-09-02

Expires in 93 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked live page: https://www.jsemzhradce.cz/

present

x-frame-options

findings

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

Header values

x-frame-options: ALLOW-FROM https://www.facebook.com