mikrocertifikat.cz

.cz crawl

First seen 2026-05-31 · Last seen 2026-06-01 · ok HTTP/1.1 200 559 ms crawled 2026-06-01

CZ · 147.251.49.35 · AS2852 CESNET z.s.p.o.

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: Ověření pravosti mikrocertifikátu
Language: cs

Technology

Server: Apache

Registration

Registrar

REG-INTERNET-CZ

Created

2022-01-31

Expires

2032-01-30 2067 days left

Updated

2022-06-11

Name servers

anxur.fi.muni.cz
ns.muni.cz

DNS records live

NS

anxur.fi.muni.cz
ns.muni.cz

MX

10 mail.muni.cz

TXT

Botanicka 68a, 602 00, Brno, Czech republic
Faculty of Informatics, Masaryk University Brno

Email authentication weak

SPF: v=spf1 include:_spf.ismu.cz ?all
neutral (?all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

R13

from 2026-05-17 to 2026-08-15

Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present

strict-transport-security

findings

missing Content Security Policy
missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

strict-transport-security: max-age=15552000