indexo.dev

4jan.cz

.cz crawl

First seen 2026-06-03 · Last seen 2026-06-04 · ok HTTP/1.1 200 564 ms crawled 2026-06-04

CZ · 88.208.121.109 · AS29208 Quantcom, a.s.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
4JAN - PR a marketingová agentura
Language
cs-CZ

Technology

Server
Apache
Stack
PHP
Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×2
  • www.google.com×1

Social

Contact

Email
Phone

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 10 4jan-cz.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication partial

SPF
v=spf1 mx a ip4:85.71.100.175 ip4:88.208.121.108 ip4:88.208.121.109 ip4:94.230.157.181 ip6:2001:4de8:f001:2006::/64 ip4:217.16.187.41 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
  • mail: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCnE1XG2XbSOw/Zade64LZSBGvsbBF9aNQkM/Z/EIlnS6KUfSSVXvwgHGrUu4i6E3RbDr2OrY4cBGhZvO3DlU…
selectors probed

Certificate (current)

E8
from 2026-05-03 to 2026-08-01
Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 40/100 Checked live page: https://www.4jan.cz/cz/

present
  • x-frame-options
findings
  • missing HSTS
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN

Links to (2)

Linked from (1)