Cra.cz Datové centrum, přenos dat, cloud | cra.cz

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Cra.cz Overview

Cra.cz ranking shows that the page is at position 3,662,764 over the world.

In terms of rank-to-traffic ratio, cra.cz has 201 unique users per day, viewing 203 pages. The rank based value of cra.cz is 3,154 USD. Every user makes 1.08 pageviews on average.

Cra.cz boasts a link base consisting of 712 referring domains and 903 external backlinks, as revealed by the data obtained from web network scanning.

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

According the last verification test in April 26, 2021, cra.cz has an expired SSL certificate issued by Sectigo Limited (expired on February 21, 2022). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Sectigo Limited.

Based on data from Google Safe Browsing, Google Safe Search and Symantec cra.cz is a fairly safe domain.

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

Cra.cz Rank Summary

Global Rank
3,662,764
Average Load Time
1.59sec
Links In Count
38
Website Value
$2,920

Cra.cz Website Safety

logo
Overview
Last Updated: 12/26/2024
Overall result - cra.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: 03/18/2024
cra.cz is safe.
Norton ConnectSafe evaluates cra.cz for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 05/24/2017
cra.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
cra.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: 02/18/2021
cra.cz is safe.
McAfee assesses cra.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 cra.cz for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 12/26/2024
cra.cz child safety is unknown.
The WOT calculates reputation of the cra.cz. This reputation system receives ratings from users and information from third-party sources, assesses the cra.cz for safety features and confirms, whether cra.cz is suitable for children.

SSL Information
Domaincra.cz
Issuer OrganizationSectigo Limited
IssuerSectigo RSA Domain Validation Secure Server CA
AlgorithmRSA-SHA256
Valid form02/15/2021
Expiration02/21/2022
SignedCertificate is not self signed
Additional Domains cra.cz
www.cra.cz

Cra.cz Rank History

Cra.cz Hosting Information

Server Location

ASN Information

ASN ID: 25248

ASN Title: RADIOKOMUNIKACE a.s.

Last Update: 03/17/2024

% 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 'AS25164 - AS25249'

as-block: AS25164 - AS25249
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: 2010-05-11T11:46:07Z
last-modified: 2014-02-24T13:15:17Z
source: RIPE

% Information related to 'AS25248'

% Abuse contact for 'AS25248' is 'abuse@bluetone.cz'

aut-num: AS25248
as-name: BlueTone-AS
descr: The Czech Republic
org: ORG-CRa1-RIPE
import: from AS1299 accept ANY
export: to AS1299 announce AS-BLUETONE-CUST
import: from AS5588 accept ANY
export: to AS5588 announce AS-BLUETONE-CUST
import: from AS8928 accept ANY
export: to AS8928 announce AS-BLUETONE-CUST
import: from AS25192 accept ANY
export: to AS25192 announce AS-BLUETONE-CUST
import: from AS29134 accept ANY
export: to AS29134 announce AS-BLUETONE-CUST
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export: to AS20723 announce AS-BLUETONE-CUST
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export: to AS29134 announce AS-BLUETONE-CUST
import: from AS29134 accept ANY
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export: to AS29208 announce AS-BLUETONE-CUST
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import: from AS5407 accept ANY
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export: to AS35592 announce AS-BLUETONE-CUST
import: from AS15512 accept ANY
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import: from AS42000 accept ANY
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import: from AS39235 accept ANY
export: to AS39235 announce AS-BLUETONE-CUST
import: from AS24971 accept ANY
export: to AS24971 announce AS-BLUETONE-CUST
import: from AS30764 accept ANY
export: to AS30764 announce AS-BLUETONE-CUST
import: from AS16019 accept ANY
export: to AS16019 announce AS-BLUETONE-CUST
import: from AS25512 accept ANY
export: to AS25512 announce AS-BLUETONE-CUST
import: from AS13036 accept ANY
export: to AS13036 announce AS-BLUETONE-CUST
import: from AS28725 accept ANY
export: to AS28725 announce AS-BLUETONE-CUST
import: from AS8928 accept ANY
export: to AS8928 announce AS-BLUETONE-CUST
import: from AS34080 accept ANY
export: to AS34080 announce AS-BLUETONE-CUST
import: from AS35361 accept ANY
export: to AS35361 announce AS-BLUETONE-CUST
import: from AS25036 accept ANY
export: to AS25036 announce AS-BLUETONE-CUST
import: from AS35214 accept ANY
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import: from AS33883 accept ANY
export: to AS33883 announce AS-BLUETONE-CUST
import: from AS35236 accept ANY
export: to AS35236 announce AS-BLUETONE-CUST
import: from AS39392 accept ANY
export: to AS39392 announce AS-BLUETONE-CUST
import: from AS29583 accept ANY
export: to AS29583 announce AS-BLUETONE-CUST
import: from AS5610 accept ANY
export: to AS5610 announce AS-BLUETONE-CUST
import: from AS24806 accept ANY
export: to AS24806 announce AS-BLUETONE-CUST
import: from AS8913 accept ANY
export: to AS8913 announce AS-BLUETONE-CUST
import: from AS30134 accept ANY
export: to AS30134 announce AS-BLUETONE-CUST
import: from AS39791 accept ANY
export: to AS39791 announce AS-BLUETONE-CUST
import: from AS2852 accept ANY
export: to AS2852 announce AS-BLUETONE-CUST
import: from AS9080 accept ANY
export: to AS9080 announce AS-BLUETONE-CUST
import: from AS12767 accept ANY
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import: from AS25234 accept ANY
export: to AS25234 announce AS-BLUETONE-CUST
import: from AS112 accept ANY
export: to AS112 announce AS-BLUETONE-CUST
import: from AS6881 accept ANY
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import: from AS15598 accept AS-IPX
export: to AS15598 announce AS-BLUETONE-CUST
import: from AS39790 accept ANY
export: to AS39790 announce AS-BLUETONE-CUST
import: from AS16265 accept ANY
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import: from AS41711 accept ANY
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import: from AS42908 accept ANY
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import: from AS28972 accept ANY
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import: from AS42306 accept ANY
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import: from AS28851 accept AS28851
export: to AS28851 announce AS-BLUETONE-CUST
import: from AS43708 accept AS43708
export: to AS43708 announce AS-BLUETONE-CUST
import: from AS43541 accept AS43541
export: to AS43541 announce AS-BLUETONE-CUST
import: from AS38952 accept AS38952
export: to AS38952 announce AS-BLUETONE-CUST
import: from AS47232 accept AS47232
export: to AS47232 announce AS-BLUETONE-CUST
import: from AS47868 accept AS47868
export: to AS47868 announce AS-BLUETONE-CUST
import: from AS16276 accept AS-OVH
export: to AS16276 announce AS-BLUETONE-CUST
import: from AS51025 accept ANY
export: to AS51025 announce AS-BLUETONE-CUST
import: from AS196822 accept AS196822
export: to AS196822 announce ANY
import: from AS44002 accept AS44002
export: to AS44002 announce ANY
import: from AS196845 accept AS196845
export: to AS196845 announce ANY
import: from AS52154 accept AS52154
export: to AS52154 announce ANY
import: from AS197277 accept AS197277
export: to AS197277 announce ANY
import: from AS197046 accept AS-FIXNET
export: to AS197046 announce ANY
import: from AS196762 accept AS196762
export: to AS196762 announce ANY
import: from AS43070 accept AS-JAW AND AS-JAW6
export: to AS43070 announce ANY
import: from AS52130 accept AS52130
export: to AS52130 announce ANY
import: from AS57904 accept AS57904
export: to AS57904 announce ANY
import: from AS25192 accept RS-CZ-NIC
export: to AS25192 announce ANY
import: from AS199600 accept AS199600
export: to AS199600 announce ANY
import: from AS47834 accept AS47834
export: to AS47834 announce ANY
import: from AS197565 accept AS197565
export: to AS197565 announce ANY
import: from AS201934 accept AS201934
export: to AS201934 announce ANY
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export: to AS198991 announce ANY
import: from AS197875 accept AS197875
export: to AS198991 announce ANY
import: from AS44500 accept AS44500
export: to AS44500 announce ANY
import: from AS38938 accept AS-SWW
export: to AS38938 announce ANY
import: from AS48405 accept AS48405
export: to AS48405 announce ANY
import: from AS203299 accept AS203299
export: to AS203299 announce ANY
import: from AS57496 accept AS57496
export: to AS57496 announce ANY
import: from AS43757 accept AS43757
export: to AS43757 announce ANY
import: from AS206344 accept AS206344
export: to AS206344 announce ANY
import: from AS11521 accept AS11521
export: to AS11521 announce ANY
import: from AS206438 accept AS206438
export: to AS206438 announce ANY
import: from AS204405 accept AS204405
export: to AS204405 announce ANY
import: from AS39790 accept AS39790
export: to AS39790 announce ANY
import: from AS204351 accept AS204351
export: to AS204351 announce ANY
import: from AS201931 accept AS201931
export: to AS201931 announce ANY
admin-c: CRA37-RIPE
tech-c: CRA37-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: BlueTone-MNT
mnt-lower: BlueTone-MNT
mnt-routes: BlueTone-MNT
mnt-routes: AS13036-MNT
created: 2002-09-20T09:38:10Z
last-modified: 2018-07-18T12:46:51Z
source: RIPE

organisation: ORG-CRa1-RIPE
org-name: RADIOKOMUNIKACE a.s.
org-type: LIR
address: Skokanska 2117 / 1
address: 169 00
address: Praha 6 - Brevnov
address: CZECH REPUBLIC
phone: +420242411534
fax-no: +420242411676
admin-c: RS2825-RIPE
admin-c: VK1570-RIPE
mnt-ref: BlueTone-MNT
mnt-ref: RIPE-NCC-HM-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: BlueTone-MNT
abuse-c: CRA37-RIPE
created: 2004-04-17T11:04:14Z
last-modified: 2017-02-16T10:20:23Z
source: RIPE # Filtered

role: CRA Hostmasters
address: Ceske Radiokomunikace a.s.
address: Skokanska 1
address: 169 00 Praha 6
address: Czech Republic
phone: +420 242 411 534
fax-no: +420 242 411 676
remarks: trouble: +-----------------------------------------+
remarks: trouble: | Operational issues: ripe@bluetone.cz |
remarks: trouble: | Abuse and SPAM: abuse@bluetone.cz |
remarks: trouble: +-----------------------------------------+
admin-c: RS2825-RIPE
tech-c: RS2825-RIPE
tech-c: VK1570-RIPE
tech-c: MK7771-RIPE
nic-hdl: CRA37-RIPE
mnt-by: BLUETONE-MNT
created: 2004-11-05T10:03:39Z
last-modified: 2012-11-09T13:14:18Z
source: RIPE # Filtered
abuse-mailbox: abuse@bluetone.cz

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

Cra.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: Tue Aug 29 00:55:26 2023

domain: cra.cz
registrant: SB:PP405-RIPE_XX
admin-c: SMER
admin-c: KMARTY
nsset: NSS-RADIKOMUNIKACE-15
keyset: KSET-CRA-20
registrar: REG-INTERNET-CZ
registered: 07.06.1997 02:00:00
changed: 01.04.2022 11:18:06
expire: 13.10.2023

contact: SB:PP405-RIPE_XX
org: České Radiokomunikace a.s.
name: České Radiokomunikace a.s.
address: Skokanská 1
address: Praha 6
address: 16900
address: CZ
registrar: REG-INTERNET-CZ
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00

contact: SMER
name: Radovan Smetanka
address: Skokanska 1
address: Praha 6
address: 16900
address: CZ
registrar: REG-INTERNET-CZ
created: 23.11.2005 15:45:00
changed: 15.05.2018 21:32:00

contact: KMARTY
name: Martin Kebert
registrar: REG-MOJEID
created: 29.10.2010 18:50:42
changed: 12.11.2020 17:15:21

nsset: NSS-RADIKOMUNIKACE-15
nserver: ns1.bluetone.cz (212.158.128.13, 2a02:a40:2::13)
nserver: ns2.bluetone.cz (85.207.207.75, 2a02:a40:2:200::2:200)
nserver: ns.bluetone.cz (212.158.128.12, 2a02:a40:2::12)
tech-c: SMER
tech-c: KMARTY
registrar: REG-INTERNET-CZ
created: 06.03.2015 10:57:42
changed: 19.01.2018 12:42:47

keyset: KSET-CRA-20
dnskey: 257 3 13 /1N0S0/hrUcWCxa3XB9fCNw8CoYW8TZxumI5jKeGDcEHo/b0GD+lMXdYuBMcvx8qF70Ut/30P2v3mRUai3BD/A==
tech-c: SB:RADIOKOM_05
tech-c: KMARTY
registrar: REG-INTERNET-CZ
created: 03.12.2019 10:54:48

contact: SB:RADIOKOM_05
org: České Radiokomunikace a.s.
name: České Radiokomunikace a.s.
address: Skokanská 2117/1
address: Praha 6 - Břevnov
address: 169 00
address: CZ
registrar: REG-ZONER
created: 24.11.2005 16:15:00
changed: 06.03.2019 15:42:05


DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL

Cra.cz HTML Check

Warnings

Errors

Cra.cz Desktop Performance

Last tested: 05/21/2017

Speedometer image
Desktop Speed
49%

Desktop Resource Breakdown
Total Resources87
Number of Hosts16
Static Resources67
JavaScript Resources33
CSS Resources11

Cra.cz Mobile Insights

Last tested: 05/21/2017

Speedometer image
Mobile Usability
99%
Speedometer image
Mobile Speed
45%

Mobile Resource Breakdown
Total Resources83
Number of Hosts16
Static Resources63
JavaScript Resources33
CSS Resources11

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