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Gridlode
Rank #2,517Updated November 10, 2026

cuni.cz

Univerzita Karlova

cuni.cz is registered with INTERNET CZ, a.s. since March 10, 1996 (30.7 years). The registration expires on October 10, 2034. The site runs on jQuery, jQuery UI, PHP and 4 other technologies. Its email security grade is C. Its SSL certificate is issued by Hellenic Academic and Research Institutions CA and is valid for 110 more days.

Domain age
30.7 yrs
Technologies
7
Email security
C
SSL days left
110

Registration

RegistrarINTERNET CZ, a.s.
RegisteredMarch 10, 1996
ExpiresOctober 10, 2034
UpdatedJanuary 1, 2025
Statusactive
Name serverscuce.ruk.cuni.cz, david.ruk.cuni.cz, golias.ruk.cuni.cz, nsa.ces.net
DNSSECSigned

DNS records

TypeValueTTL
A195.113.89.542703
MXag1.cesnet.cz 103600
MXag2.cesnet.cz 103600
NSnsa.ces.net86400
NScuce.ruk.cuni.cz86400
NSdavid.ruk.cuni.cz86400
NSgolias.ruk.cuni.cz86400
CAAiodef 0 mailto:[email protected]7200
CAAissue 0 digicert.com7200
CAAissue 0 harica.gr7200
CAAissue 0 letsencrypt.org7200
TXTapple-domain-verification=S8ZUNOXpX2OWxGom3600
TXTgoogle-site-verification=52QIa-wnhi8U3xyitTyH9czyXoo3OkkFbqzAJW7U5HM3600
TXTgoogle-site-verification=LazYVCEv9A_edcp-AQV8RBrOcYmEyvoC1t68iOp7tSI3600
TXTgoogle-site-verification=T4H_GYV-wpMp1W0zdIt62whR5pTIIr9HOSoS75qomrs3600
TXTv=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:office2.cesnet.cz mx:is.cuni.cz include:spf.protection.outlook.com -all3600
AAAA2001:718:1e03:622::602703

Technology stack

JavaScript library
Programming language
Security
Video
Web server

Analytics and advertising IDs

google_tag_manager:GTM-NNHH3F6google_tag_manager:GTM-WMX79LQ4

SSL certificate

ValidValid
IssuerGR, GEANT TLS ECC 1, Hellenic Academic and Research Institutions CA
ExpiresFebruary 28, 2027
Days remaining110
ProtocolTLSv1.3
Namescuni.cz, www.cuni.cz

Email security

CScore 75/100 across SPF, DMARC, DKIM, MTA-STS and BIMI.
  • warnSubdomains use a weaker policy (sp=none) than the main domain (p=quarantine).
  • warnNo MTA-STS: mail sent to you can be downgraded to an unencrypted connection.
  • warnNo TLS-RPT record, so you won't hear about failed encrypted deliveries.
  • warnNo BIMI record (optional: shows your logo next to your emails in supporting inboxes).
  • goodSPF record found.
  • goodSPF ends with -all: servers you have not listed are rejected (hard fail).
  • goodDMARC policy is quarantine: failing mail goes to spam. Move to p=reject for full protection.
  • goodDMARC aggregate reports are sent to mailto:[email protected].
  • goodDKIM keys found (selector: selector1, selector2).
  • good2 MX record(s) found.

Homepage metadata

TitleUniverzita Karlova
IndexableYes
Word count2242

About cuni.cz

Who is the registrar of cuni.cz?

cuni.cz is registered with INTERNET CZ, a.s..

When does cuni.cz expire?

The current registration of cuni.cz expires on October 10, 2034. It was first registered on March 10, 1996.

What technology does cuni.cz use?

We detected 7 technologies on cuni.cz, including jQuery, jQuery UI, PHP, HSTS, Google Tag Manager, YouTube.

Does cuni.cz protect its email with SPF and DMARC?

cuni.cz scores 75/100 (grade C) for email security. Subdomains use a weaker policy (sp=none) than the main domain (p=quarantine). No MTA-STS: mail sent to you can be downgraded to an unencrypted connection.

What are the name servers of cuni.cz?

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