indexo.dev

w4.cz

.cz crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 233 ms crawled 2026-06-04

FR · 51.68.165.132 · AS16276 OVH SAS

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Tvorba webových stránek - W4 media
Description
Responsivní webové stránky s krásným UX a designem

Technology

Server
Apache
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×1
  • www.googletagmanager.com×1

Registration

Registrar
REG-WEBGLOBE
Created
2002-03-01
Expires
2027-02-27 267 days left
Updated
2022-10-05
Name servers
  • ns1.ignum.com
  • ns2.ignum.cz

DNS records live

NS
  • ns1.ignum.com
  • ns2.ignum.cz
MX
Show 7 MX records
  • 10 aspmx.l.google.com
  • 20 alt1.aspmx.l.google.com
  • 20 alt2.aspmx.l.google.com
  • 30 aspmx2.googlemail.com
  • 30 aspmx3.googlemail.com
  • 30 aspmx4.googlemail.com
  • 30 aspmx5.googlemail.com

Email authentication weak

SPF
v=spf1 include:_spf.google.com -all
strict (-all)
DMARC
not published
DKIM
  • google: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyB6NWw8dQXLDlEntbWkYfeAsnL6v8veyoXuyhslapFwxlkzZB5b0UsjldGp18eHkRDu+71SmowRABr…
selectors probed

Certificate (current)

R13
from 2026-04-23 to 2026-07-22
Expires in 48 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://w4.cz/

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

Linked from (1)