indexo.dev

4com.cz

.cz dns crawl

First seen 2026-05-29 · Last seen 2026-06-02 · ok HTTP/1.1 200 331 ms crawled 2026-05-31

CZ · 84.244.104.6 · AS25248 RADIOKOMUNIKACE a.s.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
4COM - IT pod jednou střechou
Description
Internet, televize, telefon
Language
cs-CZ
Generator
Nicepage 5.0.7, nicepage.com

Open Graph

title
4COM - IT pod jednou střechou
description
Internet, televize, telefon

Technology

Server
Apache
Fonts
  • Google Fonts

Third-party hosts loaded (1)

  • fonts.googleapis.com×2

Social

Contact

Email

DNS records live

NS
  • ns.wedos.com
  • ns.wedos.cz
  • ns.wedos.eu
  • ns.wedos.net
MX
  • 10 4com.email
Verified for
  • Google

Email authentication partial

SPF
v=spf1 ip4:84.244.104.3 ip4:84.244.104.5 ip4:84.244.104.7 ip4:84.244.104.8 ip4:84.244.104.10 ip4:84.244.104.11 ip4:84.244.104.69 ip4:84.244.104.222 ~all
softfail (~all)
DMARC
v=DMARC1;p=none;sp=none;pct=100;rua=mailto:admin@4com.cz;ruf=mailto:admin@4com.cz;ri=86400;fo=1;
policy: none (monitoring only) · sp=none
DKIM
  • default: v=DKIM1; k=rsa; s=email; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC6z0tgb9mMn7UgH3Q0EipfjxfdQIK24S0z+vdV7bpl/Nd9/EJc4Yt2OylS2b6KWKGGIgHHnc+aH…
selectors probed

Certificate (current)

R12
from 2026-04-08 to 2026-07-07
Expires in 34 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://4com.cz/

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

Links to (2)