WEB4U-CSIRT (CZ)

WEB4U-CSIRT Re-Listing Candidate

Fields describing the team

Team Details

Official Name

WEB4U-CSIRT

Short Name

WEB4U-CSIRT (CZ)

Country

Czech Republic

Established

01 Jun 2015

Host Organisation

Web4U s.r.o.

Constituency

Constituency Type

  • ISP Customer Base

Country of constituency

  • Czech Republic

ASNs, Domains, IP ranges

  • 39790
  • *.web4u.cz
  • *.server4u.cz
  • 81.91.80.0/20
  • 185.14.224.0/22
  • 2001:1568::/32

Web4U, s.r.o. is company dealing with domain registration, webhosting services and servers targeting primary to Czech customers. WEB4U-CSIRT is responsible for resolving incidents related to AS39790 (IP ranges 81.91.80.0/20 , 185.14.224.0/22 , 2001:1568::/32). Team is also responsible for handling incidents related to nameservers ns.web4u.cz (185.14.224.241 , 2001:1568:fd::241) and ns2.web4u.cz (85.207.53.12, 2a02:a40:100:28ff::12).

Team Contact Information

Main Number

Emergency Number

Fax Number

-

Email

Postal Address

Web4U s.r.o.
Computer Security Incident Response Team
Mahlerovy sady 1
130 00 Praha 3
Czech Republic

Business Hours

09:00 to 17:00, Monday to Friday

Timezone

Europe/Prague

Cryptography

PGP key(s) of the team

Type:   RSA/4096    Expires: 2028-06-24
Fpr:    AD0B C756 555F B855 4214 F30D D2FB 15BA F321 6637
Sub:    RSA/4096  Usage: Encrypt  Expires: 2028-06-24
UID:    Web4U CSIRT <csirt@web4u.cz>

Classification

Current State

Re-Listing Candidate
Last change: 26 Jun 2025

Entry Date

24 Jun 2025

Date of Accreditation

History

Date Description
17 Jun 2022 WEB4U-CSIRT (CZ) has completed the re-listing process
18 May 2019 WEB4U-CSIRT (CZ) has completed the re-listing process
19 Jul 2015 WEB4U-CSIRT (CZ) is now a listed team