indexo.dev

novaskoladuha.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-27 · ok HTTP/1.1 200 299 ms crawled 2026-05-30

CZ · 217.198.116.81 · AS34222 ZONER a.s.

Reputation 95/100 weak security headers

Classifying

HTML metadata

Title
Nová škola - DUHA, Brno - distribuce učebnic, pracovních sešitů a interaktivních učebnic
Description
Nová škola - DUHA, Brno, nakladatelství a distribuce učebnic pro školy.
Language
cs

Technology

Server
Apache
jQuery
3.5.1
Stack
PHP
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (5)

  • www.googletagmanager.com×2
  • code.jquery.com×1
  • fonts.googleapis.com×1
  • fonts.gstatic.com×1
  • jigsaw.w3.org×1

Social

Contact

Email
Phone

DNS records live

NS
  • ns1.regzone.cz
  • ns1.regzone.de
  • ns1.regzone.info
MX
  • 1 relay.zoner.com
  • 10 10mx.zoner.com
  • 15 15mx.zoner.com

Email authentication strong

SPF
v=spf1 include:spf-zoner-zmail.zoner.com ip4:217.198.116.81 ip6:2a00:19a0:3:74::d9c6:7451:1 -all
strict (-all)
DMARC
v=DMARC1; p=reject; rua=mailto:info@novaskoladuha.cz
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2026-02-02 to 2027-03-04
Expires in 276 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://novaskoladuha.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 (1)