levouzadnionline.cz

.cz crawl

First seen 2026-05-21 · Last seen 2026-05-30 · ok HTTP/1.1 200 2096 ms crawled 2026-05-27

NL · 20.50.2.25 · AS8075 Microsoft Corporation

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: Levou zadní online
Description: Online výuková platforma pro dospívající mladé lidi, kteří přicházejí do České republiky bez znalosti češtiny, i jejich vyučující!
Language: en

Technology

Server: Kestrel

Fonts

Google Fonts

Third-party hosts loaded (3)

fonts.googleapis.com×3
cdnjs.cloudflare.com×2
fonts.gstatic.com×1

Registration

Registrar

REG-WEBGLOBE

Created

2022-10-11

Expires

2026-10-10 131 days left

Updated

2024-12-14

Name servers

ns1.webglobe.cz
ns2.webglobe.cz
ns3.webglobe.com

DNS records live

NS

ns1.webglobe.cz
ns2.webglobe.cz
ns3.webglobe.com

MX

10 email.webglobe.cz
10 email2.webglobe.cz
10 email3.webglobe.cz
10 email4.webglobe.cz

TXT

v=spf2.0/mfrom,pra +a +mx include:_spf2.webglobe.cz -all
vofr8n65tkk2dceso50ck71has

Verified for

Google

Email authentication partial

SPF

v=spf1 a mx include:_spf.webglobe.cz -all

strict (-all)

DMARC

v=DMARC1; p=none;

policy: none (monitoring only)

DKIM

s1: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvA7UP7polMQumA5KSvhcYFguLJXg0AXJIRLO0GMDB4ppziceh0ZEKNi5rbPZMajdmde8T0Pjy2sIidLOxk…
s2: k=rsa; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5A/kFizGx0CgE0TzXx/V8rdtJ3SqjGY14F/lyI3zYiQ/dW8LWRQyrYoVU9sFv4KRu+/4SHH6pM1nMX2b5C…

selectors probed

Certificate (current)

Go Daddy Secure Certificate Authority - G2

from 2025-10-20 to 2026-11-20

Expires in 173 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://levouzadnionline.cz/

present

strict-transport-security

findings

short HSTS max-age
missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=2592000