indexo.dev

ace-s.cz

.cz dns crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 689 ms crawled 2026-06-01

CZ · 81.2.250.249 · AS24806 INTERNET CZ, a.s.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
ACE & S computer
Language
cs

Technology

Server
Apache
jQuery
2.2.4 known XSS (<3.5)

Third-party hosts loaded (1)

  • js.web4ukraine.org×1

Contact

Phone

DNS records live

NS
  • ns1.ace-s.cz
  • ns2.ace-s.cz
MX
  • 10 mx1.ace-s.cz
  • 40 mx4.ace-s.cz
Verified for
  • Microsoft 365

Email authentication weak

SPF
v=spf1 a:server3.ace-s.cz mx a ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-06 to 2026-07-05
Expires in 31 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.ace-s.cz/

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

Links to (6)