indexo.dev

sezimackastredni.cz

.cz crawl

First seen 2026-05-27 · Last seen 2026-05-27 · ok HTTP/1.1 200 554 ms crawled 2026-05-30

CZ · 217.75.220.9 · AS210712 ISP Alliance a.s.

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Vyšší odborná škola, Střední škola, Centrum odborné přípravy
Language
cs
Generator
WordPress 6.9.4
Canonical
https://sezimackastredni.cz/
Feeds

Technology

Server
Apache
CMS
WordPress 6.9.4
jQuery
3.7.1
Fonts
  • Google Fonts
Social widgets
  • YouTube Embed
Third-party hosts loaded (9)
  • stackpath.bootstrapcdn.com×4
  • cdnjs.cloudflare.com×3
  • www.youtube.com×3
  • www.google.com×2
  • c.seznam.cz×1
  • cdn.jsdelivr.net×1
  • code.jquery.com×1
  • fonts.googleapis.com×1
  • gmpg.org×1

Social

Contact

Phone

DNS records live

NS
  • ns.forpsi.cz
  • ns.forpsi.it
  • ns.forpsi.net
MX
  • 10 mail.copsu.cz
Verified for
  • Google
  • Microsoft 365

Email authentication partial

SPF
v=spf1 ip4:217.75.220.11 include:spf.protection.outlook.com -all
strict (-all)
DMARC
v=DMARC1; p=none; fo=1;rua=mailto:kollmann@copsu.cz; ruf=mailto:kollmann@copsu.cz;ri=300;adkim=r;aspf=r
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

E7
from 2026-04-13 to 2026-07-12
Expires in 42 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Links to (16)

Linked from (1)