indexo.dev

jsemzezlina.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 141 ms crawled 2026-05-30

NL · 104.46.44.78 · AS8075 Microsoft Corporation

Reputation 62/100 wrong cert weak security headers no dmarc policy

Classifying

HTML metadata

Title
Doména je registrována na serverech Web4U s.r.o.
Language
cs

Technology

Server
openresty

Registration

Registrar
REG-WEB4U
Created
2016-02-14
Expires
2027-02-13 257 days left
Updated
2016-12-23
Name servers
  • ns2.web4u.cz
  • ns.web4u.cz

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
MX
  • 10 mx.web4u.cz

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

R12
from 2026-03-26 to 2026-06-24
Expires in 24 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://jsemzezlina.cz/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (1)

Linked from (13)