indexo.dev

kosek.cz

.cz crawl

First seen 2026-05-25 · Last seen 2026-05-31 · ok HTTP/1.1 200 1804 ms crawled 2026-05-29

US · 104.198.14.52 · AS396982 Google LLC

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Domovská stránka Jirky Koska -- "VŠE O WWW"
Description
Velice obsáhlý zdroj informací o tvorbě webových stránek, programování webových aplikací a technologiích XML. Domovská stránka Jirky Koska.

Technology

CDN
Netlify

Social

Contact

Email

Registration

Registrar
REG-WEBGLOBE
Created
1998-10-20
Expires
2027-10-28 514 days left
Updated
2022-12-25
Name servers
  • ns1.ignum.com
  • ns2.ignum.cz

DNS records live

NS
  • ns1.ignum.com
  • ns2.ignum.cz
MX
  • 10 in1-smtp.messagingengine.com
  • 20 in2-smtp.messagingengine.com

Email authentication weak

SPF
v=spf1 include:spf.messagingengine.com ?all
neutral (?all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E7
from 2026-05-26 to 2026-08-24
Expires in 85 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.kosek.cz/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31536000

Links to (11)

Linked from (2)