Zenken.co.jp IT事業と語学事業のZENKEN（ゼンケン） | 全研本社株式会社

IT事業と語学事業を展開する全研本社ではITコンサルティング事業から教育サービス事業など全国で各種事業を展開しています。当サイトはゼンケングループの公式コーポレートサイトです。

Online Status
Offline

Server IP address resolved: No
Http response code: None
Last Checked: 02/03/2025

Zenken.co.jp attracts 644 unique visitors daily, generating 3,736 pageviews. The estimated value of zenken.co.jp is 70,299 USD. Each visitor views approximately 6.21 pages on average.

According to Majestic's traffic estimates, zenken.co.jp ranks 16,164 globally, with the majority of its visitors coming from Japan, where it holds the 17,141 position.

Zenken.co.jp is hosted by AMAZON-02 - Amazon.com, Inc., US in United States; however, migrating the server to Japan could further improve page load times for the majority of users.

See the list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.

Zenken.co.jp is registered with the .JP top-level domain. Explore additional websites within the .JP zone.

The last inspection on (July 31, 2024), confirms that zenken.co.jp holds a valid and current SSL certificate issued by Cybertrust Japan Co., Ltd. expiring on June 07, 2025. Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by Cybertrust Japan Co., Ltd..

According to Google Safe Browsing, Google Safe Search and Symantec zenken.co.jp appears to be a safe domain.

Based on Google's Mobile-Friendly test, zenken.co.jp is optimized for mobile and tablet devices, although the web page loading speed could be improved.

Global Rank
182,292
Average Load Time
0.38sec
Links In Count
51
Website Value
$65,700

Audience Geography. Where are zenken.co.jp visitors located?

Country Visitors
Japan Japan JP100%
Country Pageviews
Japan Japan JP100%
Country Rank
Japan Japan JP17141

Where do visitors go on zenken.co.jp?

Subdomain Pageviews
Subdomain Pageviews per User
Subdomain Reach

How popular is zenken.co.jp?

PeriodGlobal RankGlobal Rank Delta
past 3 months182292-324267
past month21329733727
past week342587198597
DaysPageviews RankPageviews Rank DeltaPageviews per MillionPageviews per Million DeltaPageviews per UserPageviews per User Delta
90131730-33220041460%5.870%
302819251673672-66.012%2-72.678%
75339883385917-75.278%1-50.739%
DaysReach RankReach Rank DeltaReach per MillionReach per Million Delta
90221152-33931127200%
30202554-29080320%
72708211296713-49.761%
Overview
Last Updated: 02/03/2025
Overall result - zenken.co.jp 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
Last Updated: 04/02/2024
zenken.co.jp is safe.
Norton ConnectSafe evaluates zenken.co.jp for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 07/04/2019
zenken.co.jp 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 Browsing
Last Updated: 01/09/2019
zenken.co.jp 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.
Site Advisor
Last Updated: 03/02/2021
zenken.co.jp is safe.
McAfee assesses zenken.co.jp 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 zenken.co.jp for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 02/03/2025
zenken.co.jp child safety is unknown.
The WOT calculates reputation of the zenken.co.jp. This reputation system receives ratings from users and information from third-party sources, assesses the zenken.co.jp for safety features and confirms, whether zenken.co.jp is suitable for children.
Zenken.co.jp | SSL Certificate Information
SSL Checker Tool
Domainwww.zenken.co.jp
Issuer OrganizationCybertrust Japan Co., Ltd.
IssuerCybertrust Japan SureServer CA G4
AlgorithmRSA-SHA256
Valid form05/15/2024
Expiration06/07/2025
SignedCertificate is not self signed
Additional Domains www.zenken.co.jp
zenken.co.jp
recruit.zenken.co.jp
Server Location
Geolocation Tool
Zenken.co.jp ASN Information
ASN Lookup Tool

ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 12/21/2024

#
# 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: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-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
WHOIS Lookup Tool

[ JPRS database provides information on network administration. Its use is ]
[ restricted to network administration purposes. For further information, ]
[ use 'whois -h whois.jprs.jp help'. To suppress Japanese output, add'/e' ]
[ at the end of command, e.g. 'whois -h whois.jprs.jp xxx/e'. ]

Domain Information: [ドメイン情報]
a. [ドメイン名] ZENKEN.CO.JP
e. [そしきめい] ぜんけんほんしゃかぶしきがいしゃ
f. [組織名] 全研本社株式会社
g. [Organization] ZENKEN CORPORATION
k. [組織種別] 株式会社
l. [Organization Type] Corporation
m. [登録担当者] TN4586JP
n. [技術連絡担当者] RI008JP
p. [ネームサーバ] nsa.znet.or.jp
p. [ネームサーバ] nsb.znet.or.jp
p. [ネームサーバ] nsc.znet.or.jp
s. [署名鍵]
[状態] Connected (2022/10/31)
[登録年月日] 1996/10/30
[接続年月日] 1996/11/25
[最終更新] 2021/11/01 01:03:36 (JST)

DNS Records
DNS Lookup Tool
HostA RecordTTL
zenken.co.jp15.197.131.391800
zenken.co.jp3.33.143.851800
HostMX RecordPriorityTTL
zenken.co.jpalt1.aspmx.l.google.com201800
zenken.co.jpaspmx.l.google.com101800
zenken.co.jpalt2.aspmx.l.google.com301800
zenken.co.jpalt4.aspmx.l.google.com501800
zenken.co.jpalt3.aspmx.l.google.com401800
HostNS RecordTTL
zenken.co.jpnsc.znet.or.jp1800
zenken.co.jpnsa.znet.or.jp1800
zenken.co.jpnsb.znet.or.jp1800
HostTXT RecordTTL
zenken.co.jpv=spf1 +ip4:61.215.199.128/25 +ip4:219.101.191.0/24 +ip4:219.101.142.128/25 +ip4:18.223.39.224 include:spf.mk6-robo.com include:_spf.google.com include:_spf.activegate-ss.jp include:amazonses.com include:spf.mail.knockbot.jp -all1800
zenken.co.jpMS=ms343993331800
zenken.co.jpgoogle-site-verification=g0-AwZ04RlY95VFn_2_sPCFPI2aQUUVS-LCkPPnt_Qw1800
zenken.co.jpgoogle-site-verification=aMKj6AZPB7BRjaRtMO38ff-V08vU9aF26xZWI66F9zI1800

nsa.znet.or.jp
TTL: 1800
Email address: staff.nsa.znet.or.jp
Serial: 2023111501
Refresh: 14400
Retry: 600
Expire: 604800
Minimum: 600

HTML Validation Tool
Errors

Last tested: 01/07/2019

Desktop
Desktop Speed
40%
Desktop Resource Breakdown
Total Resources67
Number of Hosts10
Static Resources56
JavaScript Resources19
CSS Resources3

Last tested: 01/07/2019

Mobile
Mobile Usability
98%
Mobile Speed
34%
Mobile Resource Breakdown
Total Resources63
Number of Hosts10
Static Resources53
JavaScript Resources19
CSS Resources3
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