gresik.cz

.cz crawl

First seen 2026-05-28 · Last seen 2026-05-30 · ok HTTP/1.1 200 732 ms crawled 2026-05-30

CZ · 93.185.101.33 · AS43541 VSHosting s.r.o.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Úvodní stránka - Valdemar Grešík
Description: Úvodní stránka
Language: cs

Open Graph

url: https://www.gresik.cz/
title: Úvodní stránka - Valdemar Grešík
site name: Grešík
description: Úvodní stránka

Technology

Server: Apache

Analytics

Google Tag Manager

Fonts

Google Fonts

Third-party hosts loaded (3)

cmp.vizus.cz×3
fonts.googleapis.com×1
www.googletagmanager.com×1

Social

Contact

Phone

412 528 020

DNS records live

NS

ns.default.cz
ns2.default.cz

MX

10 mx1.vizus.cz
10 mx2.vizus.cz

Email authentication partial

SPF: v=spf1 include:spf.vizus.cz a:gateway1f.dhl.com -all
strict (-all)
DMARC: v=DMARC1; p=none; sp=none; adkim=s; aspf=s; pct=100
policy: none (monitoring only) · sp=none
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-04-25 to 2026-07-24

Expires in 53 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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

Links to (6)

Linked from (3)