indexo.dev

ibobr.cz

.cz crawl

First seen 2026-06-01 · Last seen 2026-06-01 · ok HTTP/1.1 200 660 ms crawled 2026-06-01

CZ · 81.91.92.42 · AS39790 Web4U s.r.o.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Úvod - Bobřík informatiky
Description
Informatická soutěž pro žáky základních a středních škol.
Language
cs-cz
Generator
Joomla! - Open Source Content Management
Feeds

Technology

Server
Apache
CMS
Joomla

DNS records live

NS
  • ns.web4u.cz
  • ns2.web4u.cz
MX
  • 10 mx2.mailchannels.net

Email authentication strong

SPF
v=spf1 include:_spf.web4u.cz ~all
softfail (~all)
DMARC
v=DMARC1; p=quarantine;
policy: quarantine
DKIM
no key found at common selectors

Certificate (current)

Alpiro RSA DV SSL CA 2
from 2026-05-16 to 2026-12-01
Expires in 179 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (3)

Linked from (2)