karolinum.cz

https://karolinum.cz· First analyzed 25 May 2026· Updated 25 May 2026

This site uses bot protection

The website blocked automated page access (e.g. Cloudflare Turnstile). Only DNS-based modules could be analyzed — hosting, SSL, email infrastructure, and domain info are shown below. Technology stack, SEO, and other page-content modules are unavailable for this site.

Hosting Provider

Charles University

IP Address

195.113.89.61

Site Location

🇨🇿 Czech Republicvia tld

Server Location

🇨🇿 Prague, Czechia

ASN

AS2852

Organization

Charles University

Nameservers

david.ruk.cuni.cz.cuce.ruk.cuni.cz.golias.ruk.cuni.cz.

Security Score

71%Good

HTTPS

No WAF

186d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Hellenic Academic and Research Institutions CA

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

28.11.2025

Valid Until

28.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (11)

karolinum.czwww.knihkupectvikarolinum.czorbisscholae.cztheologica.czwww.theologica.czaucgeographica.czknihkupectvikarolinum.czchiron.is.cuni.cz+3 more

SHA-256 Fingerprint

5B:84:91:C8:E3:00:05:2E:63:3D:C7:EF:BA:BA:F2:84:B4:DA:50:F4...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

ag2.cesnet.cz

ag1.cesnet.cz

Domain Information

karolinum.cz

Domain Age

26y 1m

Created

06.04.2000

Expires

05.04.2033

Last Updated

09.01.2014

Registrar

REG-INTERNET-CZ

DNSSEC

Not Enabled

Website Identity

karolinum.cz

26 years old

Location detected: 🇨🇿 Czech Republicvia tld

REG-INTERNET-CZ