Umimematiku.cz Umíme matiku – Zábavné procvičování matematiky online

Online cvičení matematika, bohatá sbírka příkladů pro základní i střední školy. Matematika hrou i tradiční procvičování počítání.

Online Status
UNKNOWN

Umimematiku.cz receives about 1,797 unique visitors and 3,594 pageviews per day. The estimated value of umimematiku.cz is 2,640 USD. Each unique visitor makes about 2 pageviews on average.

Umimematiku.cz is registered under .CZ top-level domain. Check other websites in .CZ zone.

At the time of the last check (March 18, 2022) umimematiku.cz has an expired SSL certificate issued by Let's Encrypt (expired on March 25, 2022). Check other websites using SSL certificates issued by Let's Encrypt.

According to Google Safe Browsing and Symantec umimematiku.cz is quite a safe domain.

Mobile-Friendly test indicates that umimematiku.cz is well optimized for mobile and tablet devices.



Overview
Last Updated: 05/10/2025
Unknown status.
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
Last Updated: 02/20/2025
umimematiku.cz is safe.

Norton ConnectSafe evaluates umimematiku.cz for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search
Last Updated: 05/10/2025
Not yet checked.

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 Browsing
Last Updated: 01/10/2019
Malware not found at "umimematiku.cz".
"umimematiku.cz" is not a phishing page.
"umimematiku.cz" does not install unwanted software.
"umimematiku.cz" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
Site Advisor
Last Updated: 03/23/2021
umimematiku.cz is safe.

McAfee assesses umimematiku.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 umimematiku.cz for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 05/10/2025
umimematiku.cz child safety isunknown.

The WOT calculates reputation of the umimematiku.cz. This reputation system receives ratings from users and information from third-party sources, assesses the umimematiku.cz for safety features and confirms, whether umimematiku.cz is suitable for children.

SSL Information
Domain umimematiku.cz
Issuer OrganizationLet's Encrypt
Issuer R3
Algorithm RSA-SHA256
Valid form 12/25/2021
Expiration 03/25/2022
SignedCertificate is not self signed
Additional Domains alfa.umimematiku.cz
umimematiku.cz
www.umimematiku.cz
Server Location

Not Found

ASN Information

ASN ID: 13335
ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 01/19/2025

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 13335
ASName: CLOUDFLARENET
ASHandle: AS13335
RegDate: 2010-07-14
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/autnum/13335


OrgName: Cloudflare, Inc.
OrgId: CLOUD14
Address: 101 Townsend Street
City: San Francisco
StateProv: CA
PostalCode: 94107
Country: US
RegDate: 2010-07-09
Updated: 2017-02-17
Comment: All Cloudflare abuse reporting can be done via https://www.cloudflare.com/abuse
Ref: https://rdap.arin.net/registry/entity/CLOUD14

OrgTechHandle: ADMIN2521-ARIN
OrgTechName: Admin
OrgTechPhone: +1-650-319-8930
OrgTechEmail: rir@cloudflare.com
OrgTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

OrgAbuseHandle: ABUSE2916-ARIN
OrgAbuseName: Abuse
OrgAbusePhone: +1-650-319-8930
OrgAbuseEmail: abuse@cloudflare.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

OrgNOCHandle: NOC11962-ARIN
OrgNOCName: NOC
OrgNOCPhone: +1-650-319-8930
OrgNOCEmail: noc@cloudflare.com
OrgNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RNOCHandle: NOC11962-ARIN
RNOCName: NOC
RNOCPhone: +1-650-319-8930
RNOCEmail: noc@cloudflare.com
RNOCRef: https://rdap.arin.net/registry/entity/NOC11962-ARIN

RTechHandle: ADMIN2521-ARIN
RTechName: Admin
RTechPhone: +1-650-319-8930
RTechEmail: rir@cloudflare.com
RTechRef: https://rdap.arin.net/registry/entity/ADMIN2521-ARIN

RAbuseHandle: ABUSE2916-ARIN
RAbuseName: Abuse
RAbusePhone: +1-650-319-8930
RAbuseEmail: abuse@cloudflare.com
RAbuseRef: https://rdap.arin.net/registry/entity/ABUSE2916-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

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: 3.15.0
% Timestamp: Mon May 13 19:04:43 2024

domain: umimematiku.cz
registrant: CHJARUSEK128804
admin-c: SB:HOSTINGLINE001
nsset: CH-61513-20180628
registrar: REG-WEDOS
registered: 20.12.2016 19:53:04
changed: 28.06.2018 12:45:11
expire: 20.12.2024

contact: CHJARUSEK128804
org: Petr Jarušek
name: Petr Jarušek
address: Výstavní 26
address: Brno
address: 60300
address: CZ
registrar: REG-INTERNET-CZ
created: 10.04.2017 19:34:34
changed: 27.11.2017 09:56:39

contact: SB:HOSTINGLINE001
org: THINline s.r.o.
name: Matěj Kloubek
address: Jeseniova 1196/52
address: Praha 3
address: 13000
address: CZ
registrar: REG-THINLINE
created: 11.07.2003 20:31:00
changed: 24.09.2018 10:48:03

nsset: CH-61513-20180628
nserver: ns1.digitalocean.com
nserver: ns2.digitalocean.com
nserver: ns3.digitalocean.com
tech-c: SB:HOSTINGLINE001
registrar: REG-INTERNET-CZ
created: 28.06.2018 12:44:36

DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL
Errors
Warnings

Last tested: 06/06/2018

Desktop
Desktop Speed
78%
Desktop Resource Breakdown
Total Resources53
Number of Hosts7
Static Resources41
JavaScript Resources3
CSS Resources6

Last tested: 06/06/2018

Mobile
Mobile Usability
95%
Mobile Speed
62%
Mobile Resource Breakdown
Total Resources44
Number of Hosts7
Static Resources36
JavaScript Resources3
CSS Resources6
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