indexo.dev

zsjizni.cz

.cz crawl

First seen 2026-06-03 · Last seen 2026-06-03 · ok HTTP/1.1 200 235 ms crawled 2026-06-03

SK · 37.9.175.163 · AS51013 WebSupport s.r.o.

Reputation 94/100 dmarc monitor-only

Classifying

HTML metadata

Title
Základní škola Praha 4, Jižní IV.
Language
cs

Technology

Server
openresty
Stack
PHP

Contact

Email
Phone

DNS records live

NS
  • ns1.websupport.cz
  • ns2.websupport.cz
  • ns3.websupport.eu
MX
  • 10 zsjizni-cz.mail.protection.outlook.com

Email authentication partial

SPF
v=spf1 ip4:193.86.170.232 ip4:185.156.122.180 include:spf.protection.outlook.com include:_spf.m1.websupport.sk ~all
softfail (~all)
DMARC
v=DMARC1; p=none; fo=1; rua=mailto:postmaster@zsjizni.cz
policy: none (monitoring only)
DKIM
  • selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDQaqOHrrCRg03WgDpPofwOTuypKhU6SQ9vI1oBihZkTjMBc02N2iDbTYCBVsEYRPeYGWctrPXfXrUtOnD2JS…
selectors probed

Certificate (current)

R13
from 2026-04-24 to 2026-07-23
Expires in 49 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://zsjizni.cz/

present
  • content-security-policy
findings
  • missing HSTS
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
upgrade-insecure-requests

Links to (4)

Linked from (1)