Zen.ac.jp オンラインで学ぶ通信制大学|ZEN大学

ZEN大学は、1つの学部でIT・AIからクリエイティブまで横断的に学べるカリキュラムが特徴の新しいオンライン大学です。年間授業料は38万円。通信制高校からの進学や社会人入学にも最適。出願に向けた無料の資料請求はこちらから!

Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.07 sec.
Last Checked: 11/02/2026

Zen.ac.jp attracts 2,573 unique visitors daily, generating 5,147 pageviews. The estimated value of zen.ac.jp is 3,852 USD. Each visitor views approximately 2.14 pages on average.

Zen.ac.jp is hosted by AMAZON-02 - Amazon.com, Inc., US. Check out other websites hosted by AMAZON-02 - Amazon.com, Inc., US.

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

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

The last inspection on (October 22, 2026), confirms that zen.ac.jp holds a valid and current SSL certificate issued by Amazon expiring on March 28, 2027. Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by Amazon.

Overview
Last Updated: 11/02/2026
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: 11/02/2026
Unknown status.
Norton ConnectSafe evaluates zen.ac.jp for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 11/02/2026
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: 11/02/2026
Site Advisor
Last Updated: 11/02/2026
Not yet checked.
McAfee assesses zen.ac.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 zen.ac.jp for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 11/02/2026
zen.ac.jp child safety is unknown.
The WOT calculates reputation of the zen.ac.jp. This reputation system receives ratings from users and information from third-party sources, assesses the zen.ac.jp for safety features and confirms, whether zen.ac.jp is suitable for children.

Zen.ac.jp | SSL Certificate Information
Domainzen.ac.jp
Issuer OrganizationAmazon
IssuerAmazon RSA 2048 M01
AlgorithmRSA-SHA256
Valid form09/12/2026
Expiration03/28/2027
SignedCertificate is not self signed
Additional Domains zen.ac.jp
*.zen.ac.jp
Server Location

Zen.ac.jp ASN Information

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

Last Update: 10/22/2026

#
# 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

[ 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] ZEN.AC.JP
e. [そしきめい] がっこうほうじんにほんざいだんどわんごがくえん
f. [組織名] 学校法人日本財団ドワンゴ学園
g. [Organization] Educational Institute of The Nippon Foundation and DWANGO
k. [組織種別] 学校法人
l. [Organization Type] Incorporated Educational Institution
m. [登録担当者] ID5081JP
n. [技術連絡担当者] ID5043JP
p. [ネームサーバ] ns-562.awsdns-06.net
p. [ネームサーバ] ns-1949.awsdns-51.co.uk
p. [ネームサーバ] ns-8.awsdns-01.com
p. [ネームサーバ] ns-1424.awsdns-50.org
s. [署名鍵]
[状態] Connected (2027/06/30)
[ロック状態] AgentChangeLocked
[登録年月日] 2024/06/01
[接続年月日] 2024/06/06
[最終更新] 2026/07/01 01:08:37 (JST)


DNS Records
HostA RecordTTL
zen.ac.jp65.8.54.10760
zen.ac.jp65.8.54.4560
zen.ac.jp65.8.54.1760
zen.ac.jp65.8.54.7560
HostMX RecordPriorityTTL
zen.ac.jpsmtp.google.com1300
HostNS RecordTTL
zen.ac.jpns-1424.awsdns-50.org172800
zen.ac.jpns-1949.awsdns-51.co.uk172800
zen.ac.jpns-562.awsdns-06.net172800
zen.ac.jpns-8.awsdns-01.com172800
HostTXT RecordTTL
zen.ac.jpZOOM_verify_J8H8SE7MxlTpoXqh6dl5Sj300
zen.ac.jpadobe-idp-site-verification=b13ef9eff886b3b9c5cb9063ef29948b4c2c02f9ca91030a23abb6ccc1970286300
zen.ac.jpgoogle-site-verification=RsInCYKzl0qgJr09w-FGU7C2iTyzMybvotgFlQdHLT8300
zen.ac.jpgoogle-site-verification=jMmx-hnagPDUjMFd8AZArQlaMx0hc98d9670r4uE6nU300
zen.ac.jpv=spf1 +ip4:61.209.225.200 include:spf.haihaimail.jp include:_spf.prtimes.jp include:_spf.google.com include:_spf.salesforce.com include:crmstyle.com ~all300

ns-562.awsdns-06.net
TTL: 900
Email address: awsdns-hostmaster.amazon.com
Serial: 1
Refresh: 7200
Retry: 900
Expire: 1209600
Minimum: 86400

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