cuni.cz

.cz crawl dns

First seen 2026-05-10 · Last seen 2026-05-19 · ok HTTP/1.1 200 5320 ms crawled 2026-05-16

CZ · 195.113.89.54 · AS2852 CESNET z.s.p.o.

Reputation 100/100

Classifying

HTML metadata

Title: Univerzita Karlova
Language: en

Open Graph

url: https://cuni.cz/UK-1.html
site name: Univerzita Karlova

Technology

Server: nginx

Social widgets

YouTube Embed

Third-party hosts loaded (2)

img.youtube.com×2
www.youtube.com×2

Social

Contact

Email

Phone

Registration

Registrar

REG-INTERNET-CZ

Created

1996-03-10

Expires

2034-10-09 3064 days left

Updated

2024-12-31

Name servers

cuce.ruk.cuni.cz
david.ruk.cuni.cz
golias.ruk.cuni.cz
nsa.ces.net

DNS records live

NS

cuce.ruk.cuni.cz
david.ruk.cuni.cz
golias.ruk.cuni.cz
nsa.ces.net

MX

10 ag1.cesnet.cz
10 ag2.cesnet.cz

TXT

google-site-verification=T4H_GYV-wpMp1W0zdIt62whR5pTIIr9HOSoS75qomrs
google-site-verification=LazYVCEv9A_edcp-AQV8RBrOcYmEyvoC1t68iOp7tSI
google-site-verification=52QIa-wnhi8U3xyitTyH9czyXoo3OkkFbqzAJW7U5HM

Email authentication strong

SPF

v=spf1 ip6:2001:718:1e03:4::16 a:out.ruk.cuni.cz a:dec59.ruk.cuni.cz a:golias.ruk.cuni.cz a:igraine.lfhk.cuni.cz a:dec52.lf1.cuni.cz a:office2.cesnet.cz mx:is.cuni.cz include:spf.protection.outlook.com -all

strict (-all)

DMARC

v=DMARC1; p=quarantine; sp=none; rua=mailto:postmaster-dmarc@cuni.cz

policy: quarantine · sp=none

DKIM

selector1: v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCJU6KmjmV9+L1QfyrPwf44qeCCH+Kkml9dddLC+PeeUqXJ59eur4UqM1Jx/BqHcZhJhoTkUHKDxQmx8misjK…

selectors probed

Certificate (current)

GEANT TLS RSA 1

from 2025-08-25 to 2026-08-25

Expires in 98 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://cuni.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=63072000