indexo.dev

1zsspk.cz

.cz crawl

First seen 2026-06-02 · Last seen 2026-06-03 · ok HTTP/1.1 200 254 ms crawled 2026-06-03

CZ · 188.116.64.188 · AS196822 SELECT SYSTEM, s.r.o.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Základní škola Jednička
Language
cs
Generator
WordPress 7.0
Canonical
https://1zsspk.cz/
Feeds

Technology

Server
Apache
CMS
WordPress 7.0
jQuery
3.7.1
Fonts
  • Google Fonts

Third-party hosts loaded (3)

  • fonts.googleapis.com×3
  • gmpg.org×1
  • www.facebook.com×1

Social

Contact

Phone

DNS records live

NS
  • ns4.selectsystem.cz
  • ns5.selectsystem.cz
MX
  • 10 proxy.1zsspk.cz
  • 20 mail.1zsspk.cz
  • 30 1zsspk-cz.mail.protection.outlook.com
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 include:spf.protection.outlook.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

E7
from 2026-05-23 to 2026-08-21
Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://1zsspk.cz/

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

Links to (4)

Linked from (1)