silent-lab.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-27 · ok HTTP/1.1 200 1652 ms crawled 2026-05-30

CZ · 77.78.107.215 · AS15685 CASABLANCA INT a.s.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: Silentlab - Homepage
Language: cs

Technology

Server: nginx
CMS: Gatsby

Analytics

Google Tag Manager

Cookie consent

Cookiebot

Third-party hosts loaded (4)

cdn.jsdelivr.net×2
consent.cookiebot.com×1
ct.pinterest.com×1
www.googletagmanager.com×1

Registration

Registrar

REG-WEDOS

Created

2015-08-10

Expires

2027-08-09 434 days left

Updated

2016-10-26

Name servers

ns.wedos.com
ns.wedos.cz
ns.wedos.eu
ns.wedos.net

DNS records live

NS

ns.wedos.com
ns.wedos.cz
ns.wedos.eu
ns.wedos.net

MX

10 aspmx.l.google.com
20 alt1.aspmx.l.google.com
20 alt2.aspmx.l.google.com
30 alt3.aspmx.l.google.com
40 alt3.aspmx.l.google.com

TXT

e2a1f60ccef325f97fe3027826a22d2dc0b59a3a25311010320a9c7dc5869df
duo_sso_verification=SFvhz09xmXVbK0Wc8tnNsaLkGng9XLV6oQn37kfULAyAu0JJuRXua3rVi4972QOZ

Verified for

Apple
Google
Meta

Email authentication weak

SPF

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

softfail (~all)

DMARC

not published

DKIM

google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5XjT6+l7HyVTmEHCx92dappxUlIq1dEvoxZnjt1ir0ZgTGellsAudjDaNx3OZhvg4izDt5YoqBWdfB…

selectors probed

Certificate (current)

Alpiro RSA DV SSL CA 2

from 2025-10-06 to 2026-11-07

Expires in 159 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 55/100 Checked live page: https://silent-lab.cz/cs/

present

x-frame-options
x-content-type-options
referrer-policy
cross-origin-opener-policy

findings

missing HSTS
missing Content Security Policy
missing Permissions Policy

Header values

referrer-policy: same-origin
x-frame-options: SAMEORIGIN
x-content-type-options: nosniff
cross-origin-opener-policy: same-origin

Linked from (1)

euklides.no×1