colmo.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 1542 ms crawled 2026-06-01

CZ · 217.198.114.178 · AS34222 ZONER a.s.

Reputation 87/100 weak security headers no dmarc policy

sector other type blog

HTML metadata

Title: Colmo | Colmo
Description: Jsme brand design studio. Tvoříme autentické značky, vizuální identity, publikace a výstavní projekty pro širokou škálu klientů.
Language: cs

Open Graph

url: https://www.colmo.cz/
title: Colmo | Colmo
description: Jsme brand design studio. Tvoříme autentické značky, vizuální identity, publikace a výstavní projekty pro širokou škálu klientů.

Technology

Server: Apache
Stack: PHP

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

DNS records live

NS

ns1.regzone.cz
ns1.regzone.de
ns1.regzone.info

MX

1 aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com
5 alt1.aspmx.l.google.com
5 alt2.aspmx.l.google.com

Verified for

Google

Email authentication weak

SPF

v=spf1 include:_spf.google.com ~all

softfail (~all)

DMARC

not published

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwKHQr0uG2+/c6qSmpcEnnPrKZEuH67zrbAhJnma+UutT7jf8+CL5wtlEjFFDoROnAoC/N/AT+r20TA…

selectors probed

Certificate (current)

Encryption Everywhere DV TLS CA - G2

from 2025-10-18 to 2026-11-17

Expires in 167 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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