indexo.dev

copnb.cz

.cz crawl

First seen 2026-06-04 · Last seen 2026-06-04 · ok HTTP/1.1 200 354 ms crawled 2026-06-04

CZ · 185.73.162.3 · AS210139 DPT s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Střední odborná škola a Střední odborné učiliště Nymburk
Language
cs-cz

Technology

Server
Apache
PHP
5.6.30 end of life

Social

DNS records live

NS
  • ns.datonet.cz
  • ns1.datonet.cz
MX
  • 50 posta.copnb.cz

Email authentication weak

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

Certificate (current)

R13
from 2026-05-21 to 2026-08-19
Expires in 75 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://copnb.cz/cz/index.php

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

Links to (2)

Linked from (1)