Master.cz MasterDC – Specialisté na firemní IT infrastrukturu

O firemní IT se staráme už přes 20 let. Provozujeme dvě datová centra – v Brně a Praze – a náš tým IT specialistů poskytuje širokou škálou služeb.

Master.cz Overview

Master.cz ranking shows that the page is at position 10,755,935 over the world.

Master.cz hosting company servers are placed in the Czech Republic, but, unfortunately, it’s not possible to identify the countries where the bulk of master.cz users come from and, therefore, we couldn’t define if the distance can influence the webpage load time. See the list of other webpages hosted on Master Internet s.r.o servers.

In terms of rank-to-traffic ratio, master.cz has 69 unique users per day, viewing 68 pages. The rank based value of master.cz is 0 USD. Every user makes 1.08 pageviews on average.

Master.cz boasts a link base consisting of 215 referring domains and 264 external backlinks, as revealed by the data obtained from web network scanning.

Master.cz top-level domain belongs to .CZ domain zone. Check other webpages in .CZ zone.

According the last verification test in July 31, 2024, master.cz has a valid and up-to-date wildcard SSL certificate issued by Unizeto Technologies S.A. , certificate expiration date: July 16, 2025. Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Unizeto Technologies S.A..

Based on data from Google Safe Browsing, Google Safe Search, Symantec and Web of Trust master.cz is a fairly safe domain.

According the Mobile-Friendly test by Google master.cz is nice optimized for mobile devices and tablets, however the webpage speed could be improved.

Master.cz Rank Summary

Global Rank
10,755,935
Average Load Time
0.55sec
Links In Count
95
Website Value
$0

Master.cz Website Safety

logo
Overview
Last Updated: 11/10/2024
Overall result - master.cz is safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton connect safe logo
Norton Connect Safe
Last Updated: 02/06/2024
master.cz is safe.
Norton ConnectSafe evaluates master.cz for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 01/31/2017
master.cz is safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google safe brwosing logo
Google Safe Browsing
Last Updated: 01/09/2019
master.cz is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee logo
Site Advisor
Last Updated: 01/15/2021
master.cz is safe.
McAfee assesses master.cz for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze master.cz for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 01/11/2019
master.cz child safety is good.
The WOT calculates reputation of the master.cz. This reputation system receives ratings from users and information from third-party sources, assesses the master.cz for safety features and confirms, whether master.cz is suitable for children.

SSL Information
Domain*.master.cz
Issuer OrganizationUnizeto Technologies S.A.
IssuerCertum Domain Validation CA SHA2
AlgorithmRSA-SHA256
Valid form07/16/2024
Expiration07/16/2025
SignedCertificate is not self signed
Additional Domains *.master.cz
master.cz

Master.cz Rank History

Master.cz Hosting Information

Server Location

ASN Information

ASN ID: 24971

ASN Title: Master Internet s.r.o.

Last Update: 02/25/2024

% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf

% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.

% Information related to 'AS24879 - AS24986'

as-block: AS24879 - AS24986
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2010-05-11T11:46:01Z
last-modified: 2014-02-24T13:15:17Z
source: RIPE

% Information related to 'AS24971'

% Abuse contact for 'AS24971' is 'abuse@master.cz'

aut-num: AS24971
as-name: MASTER-AS
org: ORG-MIs2-RIPE
descr: Czech Republic / www.master.cz
remarks:
remarks: .--------.---.-.-----.| |_.-----.----.
remarks: | | _ |__ --|| _| -__| _|
remarks: |__|__|__|___._|_____||____|_____|__|
remarks:
remarks: ======================== Upstream ========================
remarks:
remarks: = Telia
remarks:
import: from AS1299 action pref=90; accept ANY AND NOT {0.0.0.0/0};
export: to AS1299 announce AS-MASTERCZ
remarks:
remarks: = Cogent
remarks:
import: from AS174 action pref=90; accept ANY AND NOT {0.0.0.0/0};
export: to AS174 announce AS-MASTERCZ
remarks:
remarks:
remarks: = RETN
remarks:
import: from AS9002 action pref=90; accept ANY AND NOT {0.0.0.0/0};
export: to AS9002 announce AS-MASTERCZ
remarks:
remarks: ======================== Downstream ========================
remarks:
remarks: = Faster CZ
import: from AS24641 action pref=10; accept AS-FASTER-CZ
export: to AS24641 announce ANY
remarks: = Q-Net CZ
import: from AS21045 action pref=10; accept AS21045
export: to AS21045 announce ANY
remarks: = netsafe
import: from AS48921 action pref=10; accept AS48921 AS-FDR
export: to AS48921 announce ANY
remarks: = INTACTO GAMES a.s.
import: from AS51134 action pref=10; accept AS51134
export: to AS51134 announce ANY
remarks: = DCIT, a.s.
import: from AS199806 action pref=10; accept AS199806
export: to AS199806 announce ANY
remarks: = Detronics s.r.o.
import: from AS56656 action pref=10; accept AS56656 AS57760
export: to AS56656 announce ANY
remarks: = Telconet
import: from AS43203 action pref=10; accept AS43203
export: to AS43203 announce ANY
remarks: = EDSI-CDN
import: from AS204248 action pref=10; accept AS204248;
export: to AS204248 announce {0.0.0.0/0};
remarks: = Aukro a.s.
import: from AS206344 action pref=10; accept AS206344;
export: to AS206344 announce {0.0.0.0/0};
remarks:
remarks: ======================== peering.cz peering ========================
remarks:
import: from AS-MAI-PEERING-CZ-PEER action pref = 50; accept ANY
export: to AS-MAI-PEERING-CZ-PEER announce AS-MASTERCZ-CZPEERING
remarks:
remarks: ======================== NIX Prague peering ========================
remarks:
import: from AS-MAI-NIX-PEER action pref = 50; accept ANY
export: to AS-MAI-NIX-PEER announce AS-MASTERCZ-CZNIX
remarks:
remarks: ======================== SIX Bratislava peering ========================
remarks:
import: from AS-MAI-SIX-PEER action pref = 50; accept ANY
export: to AS-MAI-SIX-PEER announce AS-MASTERCZ-SKSIX
remarks:
remarks: ======================== NIX Bratislava peering ========================
remarks:
import: from AS-MAI-NIX-PEER action pref = 50; accept ANY
export: to AS-MAI-NIX-PEER announce AS-MASTERCZ-SKNIX
remarks:
admin-c: MAIc-RIPE
admin-c: MZI-RIPE
tech-c: MAIc-RIPE
tech-c: MZI-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: MASTER-MNT
mnt-routes: MASTER-MNT
created: 2002-06-11T14:14:49Z
last-modified: 2017-08-23T12:39:18Z
source: RIPE

organisation: ORG-MIs2-RIPE
org-name: Master Internet s.r.o.
org-type: LIR
address: Jiraskova 21
address: 602 00
address: Brno
address: CZECH REPUBLIC
phone: +420 777919700
mnt-ref: MASTER-MNT
mnt-ref: RIPE-NCC-HM-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: MASTER-MNT
admin-c: PV352-RIPE
admin-c: JIPA-RIPE
admin-c: MZI-RIPE
admin-c: PZAK-RIPE
abuse-c: MAIc-RIPE
created: 2004-04-17T11:04:37Z
last-modified: 2017-10-30T14:44:41Z
source: RIPE # Filtered

role: Master Internet contact
address: Master Internet s.r.o
address: Jiraskova 21
address: 602 00 Brno
address: Czech Republic
phone: +420777919484
abuse-mailbox: abuse@master.cz
admin-c: PV352-RIPE
tech-c: MZI-RIPE
tech-c: JIPA-RIPE
tech-c: MMAS-RIPE
nic-hdl: MAIc-RIPE
mnt-by: MASTER-MNT
created: 2009-03-28T19:44:57Z
last-modified: 2013-10-10T10:00:26Z
source: RIPE # Filtered

person: Martin Zidek
address: Master Internet s.r.o.
address: Cejl 20
address: 602 00 Brno
address: Czech Republic
phone: +420 777919700
nic-hdl: MZI-RIPE
mnt-by: MASTER-MNT
created: 2008-04-11T07:45:37Z
last-modified: 2017-10-30T22:00:16Z
source: RIPE # Filtered

% This query was served by the RIPE Database Query Service version 1.91.2 (WAGYU)

Master.cz Domain Registration and Settings

WHOIS

% (c) 2006-2021 CZ.NIC, z.s.p.o.
%
% Intended use of supplied data and information
%
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
%
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
%
% See also a search service at http://www.nic.cz/whois/
%
%
% Whoisd Server Version: 3.12.2
% Timestamp: Wed Feb 16 20:07:12 2022

domain: master.cz
registrant: SB:PV435-RIPE_XX
admin-c: PV435-RIPE
nsset: NSS:MASTER_INTERNET:1
keyset: AUTO-EKLR2LZ6DA6KUKCIAMS04ANYS
registrar: REG-WEBGLOBE
registered: 30.01.1998 01:00:00
changed: 15.12.2017 13:10:53
expire: 06.10.2022

contact: SB:PV435-RIPE_XX
org: Petr Vosmera
name: Petr Vosmera
address: Purkyňova 35e
address: BRNO
address: 612 00
address: CZ
registrar: REG-WEBGLOBE
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00

contact: PV435-RIPE
name: Petr Vosmera
address: Purkyňova 35e
address: Brno
address: 612 00
address: CZ
registrar: REG-WEBGLOBE
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00

nsset: NSS:MASTER_INTERNET:1
nserver: ns3.master.cz (82.209.3.134, 2a00:ca8:8000::c0de)
nserver: ns1.master.cz (81.31.33.23, 2a01:430:100:16::2)
nserver: ns2.master.cz (81.31.33.6, 2a01:430:200:b::2)
tech-c: SB:MASTER_INTERNET
tech-c: PVOSMERA
registrar: REG-WEBGLOBE
created: 01.10.2007 02:00:00
changed: 31.08.2016 13:49:02

contact: SB:MASTER_INTERNET
org: Master Internet, s.r.o.
name: Master Internet, s.r.o.
address: Jiraskova 21
address: BRNO
address: 602 00
address: CZ
registrar: REG-WEBGLOBE
created: 06.09.2002 19:16:00
changed: 15.05.2018 21:32:00

contact: PVOSMERA
name: Petr Vosmera
address: Purkyňova 35e
address: BRNO
address: 612 00
address: CZ
registrar: REG-WEBGLOBE
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00

keyset: AUTO-EKLR2LZ6DA6KUKCIAMS04ANYS
dnskey: 257 3 13 ud+sMCSQLKwoGtoVvs2SfhRD/D8jJ+bT3qQSuvWovLHuD+7oEjCOY7PsmzwKf0SjflXHhrPt6Um2qZ1Eyv7mhA==
tech-c: CZ-NIC
registrar: REG-CZNIC
created: 15.12.2017 13:10:53

contact: CZ-NIC
org: CZ.NIC, z.s.p.o.
name: CZ.NIC, z.s.p.o.
address: Milesovska 1136/5
address: Praha 3
address: 130 00
address: CZ
registrar: REG-CZNIC
created: 17.10.2008 12:08:21
changed: 15.05.2018 21:32:00

nsset: MASTER.CZ
nserver: dns1.master.cz
nserver: dns2.master.cz
tech-c: SB:FORPSI-GBG-S241820
registrar: REG-INTERNET-CZ
created: 14.03.2008 21:48:52

contact: SB:FORPSI-GBG-S241820
name: Lukáš Brandejs
address: Vižňov 362
address: Meziměstí
address: 54983
address: CZ
registrar: REG-INTERNET-CZ
created: 25.07.2007 07:35:00
changed: 15.05.2018 21:32:00


DNS Records
HostA RecordTTL
master.cz81.31.45.148300
HostMX RecordPriorityTTL
master.czns3.master.cz25300
master.czmail.master.cz10300
HostNS RecordTTL
master.czns3.master.cz86400
master.czns1.master.cz86400
master.czns2.master.cz86400
HostTXT RecordTTL
master.czv=spf1 mx ip6:2a01:430:100:5c::2 a:d24.westmaster.com ip4:185.58.41.176 ip4:77.93.193.48 a:cis.masterdc.com a:d4023.masterinter.net a:cloud-2123.masterinter.net ip4:81.31.45.148 include:spf.protection.outlook.com a:mailing.master.cz ~all300
master.cz120969c87b9d19f59a5f1eadc2f33882f890d1be7e7fb26b695081fb3846d6d8300
master.cz3580a6970e5b2f279c3e6a04aedd63875d6e0d034ef3a65941878cf998e91af8300
master.czgoogle-site-verification=LPbNtA7xbdnVcru4Olsduel-JMlMHRW6QRrpzJr6Shc300
master.cze5cd4e37b753efce5e492df6b648e8073f22ba4439bbce5b1665904983ec8835300
master.cz71c21838a0309c31d533cf71ad65366337cb18af22a93f4ba392c81cb7175af5300
master.czMS=07A1C78FD7087B45AA9D90A4F11B567B29AC9E9D300

ns1.master.cz
TTL: 300
Email address: noc.master.cz
Serial: 2023100574
Refresh: 900
Retry: 900
Expire: 1800
Minimum: 300

Master.cz HTML Check


Errors

Master.cz Desktop Performance

Last tested: 11/09/2019

Speedometer image
Desktop Speed
62%

Desktop Resource Breakdown
Total Resources104
Number of Hosts22
Static Resources80
JavaScript Resources26
CSS Resources15

Master.cz Mobile Insights

Last tested: 04/30/2017

Speedometer image
Mobile Usability
99%
Speedometer image
Mobile Speed
24%

Mobile Resource Breakdown
Total Resources82
Number of Hosts21
Static Resources64
JavaScript Resources23
CSS Resources13

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