Isp.cz Home - International School of Prague

Since 1948, ISP is the top international school in Prague, offering an innovative student-focused program for students from 3 to 19 years old.

Isp.cz Overview

Isp.cz ranking shows that the page is at position 791,106 over the world, while the bulk of its audience is from Czech Republic, where it ranks 22,007.

In terms of rank-to-traffic ratio, isp.cz has 396 unique users per day, viewing 911 pages. The rank based value of isp.cz is 9,461 USD. Every user makes 2.49 pageviews on average.

Isp.cz boasts a link base consisting of 256 referring domains and 319 external backlinks, as revealed by the data obtained from web network scanning.

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

According the last verification test in October 07, 2024, isp.cz has an expired SSL certificate issued by Let's Encrypt (expired on November 27, 2024). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by Let's Encrypt.

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

According the Mobile-Friendly test by Google isp.cz is nice optimized for mobile devices and tablets.

Isp.cz Rank Summary

Global Rank
791,106
Average Load Time
0.96sec
Links In Count
76
Website Value
$8,760

Isp.cz Website Safety

logo
Overview
Last Updated: 07/12/2025
Overall result - isp.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: 02/05/2025
isp.cz is safe.
Norton ConnectSafe evaluates isp.cz for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 06/24/2019
isp.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
isp.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: 01/10/2021
isp.cz is safe.
McAfee assesses isp.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 isp.cz for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 07/12/2025
isp.cz child safety is unknown.
The WOT calculates reputation of the isp.cz. This reputation system receives ratings from users and information from third-party sources, assesses the isp.cz for safety features and confirms, whether isp.cz is suitable for children.

SSL Information
Domainisp.cz
Issuer OrganizationLet's Encrypt
IssuerR10
AlgorithmRSA-SHA256
Valid form08/29/2024
Expiration11/27/2024
SignedCertificate is not self signed
Additional Domains isp.cz
www.isp.cz

Isp.cz Rank History

Isp.cz Hosting Information

Server Location

ASN Information

ASN ID: 13335

ASN Title: CLOUDFLARENET - Cloudflare, Inc., US

Last Update: 12/20/2024

#
# 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.
#

Isp.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: 3.15.0
% Timestamp: Tue Jan 28 19:53:45 2025

domain: isp.cz
registrant: SB:JC229-RIPE_XX
admin-c: SB:HOSTINGLINE001
nsset: NSS:HOSTINGLINE001:1
registrar: REG-THINLINE
registered: 17.02.1997 01:00:00
changed: 24.01.2020 11:06:30
expire: 06.10.2025

contact: SB:JC229-RIPE_XX
org: International School Prague
name: International School Prague
address: Nebusicka 700
address: Praha 6
address: 164 00
address: CZ
registrar: REG-GRANSY
created: 10.08.2001 22:13:00
changed: 15.05.2018 21:32:00

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: NSS:HOSTINGLINE001:1
nserver: ns2.thinline.cz (82.100.6.2, 2001:4de8:fa22:0:1:5264:602:1)
nserver: ns3.cesky-hosting.eu
nserver: ns1.thinline.cz (91.239.200.243, 2001:67c:e94:0:1:5bef:c8f3:1)
tech-c: SB:HOSTINGLINE001
registrar: REG-THINLINE
created: 01.10.2007 02:00:00
changed: 11.12.2024 13:51:31


DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL

Isp.cz HTML Check


Errors
Warnings

Isp.cz Desktop Performance

Last tested: 11/27/2019

Speedometer image
Desktop Speed
72%

Desktop Resource Breakdown
Total Resources44
Number of Hosts4
Static Resources36
JavaScript Resources1
CSS Resources2

Isp.cz Mobile Insights

Last tested: 11/29/2019

Speedometer image
Mobile Usability
100%
Speedometer image
Mobile Speed
60%

Mobile Resource Breakdown
Total Resources35
Number of Hosts4
Static Resources28
JavaScript Resources1
CSS Resources2

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