indexo.dev

postsignum.cz

.cz crawl

First seen 2026-05-20 · Last seen 2026-05-31 · ok HTTP/1.1 200 904 ms crawled 2026-05-27

CZ · 193.150.24.50 · AS198143 Ceska Posta s.p.

Reputation 100/100

Classifying

HTML metadata

Title
Certifikační autorita, kvalifikovaný certifikát, kvalifikované časové razítko, Bezpečný klíč, USB token | Certifikační autorita PostSignum
Description
Certifikační autorita PostSignum
Language
cs
Feeds

Technology

Server
Apache
jQuery
3.7.1
Stack
PHP

DNS records live

NS
  • dns1.cpost.cz
  • dns2.cpost.cz
  • dns3.cpost.cz
  • dns4.cpost.cz
TXT
  • n6p1lhvx0jr81pdsndzk3125xfsqb3z7
  • PS-AC3E7B007D7AB0BA379FAA8AB62D9DA35C5444F4

Email authentication no MX

SPF
v=spf1 -all
strict (-all)
DMARC
v=DMARC1; p=reject; rua=mailto:report.dmarc@cpost.cz; ruf=mailto:forensis.dmarc@cpost.cz; adkim=s; aspf=s; fo=0;
policy: reject (enforced)
DKIM
no key found at common selectors

Certificate (current)

GeoTrust EV RSA CA G2
from 2026-03-17 to 2026-10-02
Expires in 123 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.postsignum.cz//

present
  • strict-transport-security
  • x-frame-options
  • x-content-type-options
findings
  • missing Content Security Policy
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
DENY
x-content-type-options
nosniff
strict-transport-security
max-age=63072000; includeSubDomains; preload

Links to (1)

Linked from (1)