indexo.dev

sprzk.cz

.cz crawl

First seen 2026-05-28 · Last seen 2026-05-31 · ok HTTP/1.1 200 1142 ms crawled 2026-05-31

CZ · 89.185.232.138 · AS24971 MasterDC s.r.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Úvod | Sprzk
Language
cs
Generator
Studio9 webManager, see https://webmanager.studio9.cz/

Open Graph

url
https://www.sprzk.cz/

Technology

Server
Microsoft-IIS
jQuery
3.5.1

Contact

Email
Phone

Registration

Registrar
REG-ZONER
Created
2016-12-23
Expires
2026-12-22 204 days left
Name servers
  • ns.hptronic.cz
  • ns.studio9.cz

DNS records live

NS
  • ns.hptronic.cz
  • ns.studio9.cz
MX
  • 1 relay.zoner.com
  • 10 10mx.zoner.com
  • 15 15mx.zoner.com

Email authentication weak

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

Certificate (current)

R12
from 2026-04-29 to 2026-07-28
Expires in 57 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 90/100 Checked live page: https://www.sprzk.cz/

present
  • strict-transport-security
  • content-security-policy
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • permissions-policy
findings
  • CSP allows unsafe inline scripts/styles
  • CSP uses wildcard sources
Header values
referrer-policy
unsafe-url
x-frame-options
SAMEORIGIN
permissions-policy
camera=(), microphone=()
x-content-type-options
nosniff
content-security-policy
default-src 'self' data: blob: https://service.studio9.cz https://www.googletagmanager.com https://*.google-analytics.com https://*.googleapis.com https://*.google.com https://*.google.cz https://*.gstatic.com https://*.youtube.com https://*.googleadservices.com https://*.ytimg.com https://*.typekit.net https://*.doubleclick.net 'unsafe-inline' 'unsafe-eval'
strict-transport-security
max-age=31536000

Links to (22)

Linked from (2)