Classi.jp Classi(クラッシー) - 学校教育のICT活用を支援するクラウドサービス

Classiは、学校のICT化を多角的にサポートする教育プラットフォームです。PCやタブレット、スマートフォンにも対応し、中学校、高校、専門学校など多くの教育現場で活用されています。

Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.14 sec.
Last Checked: 06/25/2025

Over the time classi.jp has been ranked as high as 491,473 in the world.

Classi.jp receives about 2,683 unique visitors and 5,366 pageviews per day. The estimated value of classi.jp is 4,080 USD. Each unique visitor makes about 2 pageviews on average.

Classi.jp is registered under .JP top-level domain. Check other websites in .JP zone.

At the time of the last check (July 18, 2024) classi.jp has an expired SSL certificate issued by Amazon (expired on February 19, 2025). Check other websites using SSL certificates issued by Amazon.

According to Google Safe Browsing and Symantec classi.jp is quite a safe domain.

Mobile-Friendly test indicates that classi.jp is well optimized for mobile and tablet devices, however website page loading time could be improved.


Global Rank
0
Average Load Time
0.00sec
Links In Count
0
Website Value
$4,080

Overview
Last Updated: 11/02/2025
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: 03/24/2025
classi.jp is safe.

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

Google Safe Search
Last Updated: 11/02/2025
Unknown status.

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
Malware not found at "classi.jp".
"classi.jp" is not a phishing page.
"classi.jp" does not install unwanted software.
"classi.jp" 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: 02/24/2021
classi.jp is safe.

McAfee assesses classi.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 classi.jp for mature or inappropriate content, only security checks are evaluated.

Web of Trust
Last Updated: 11/02/2025
classi.jp child safety isunknown.

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

SSL Information
Domain classi.jp
Issuer OrganizationAmazon
Issuer Amazon RSA 2048 M02
Algorithm RSA-SHA256
Valid form 01/23/2024
Expiration 02/19/2025
SignedCertificate is not self signed
Additional Domains classi.jp
www.classi.jp
Server Location
Atlanta
Georgia
United States
ASN Information

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

Last Update: 08/11/2025

#
# 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: 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]
[Domain Name] CLASSI.JP

[登録者名] Classi Corp.
[Registrant] Classi Corp.

[Name Server] ns-1677.awsdns-17.co.uk
[Name Server] ns-299.awsdns-37.com
[Name Server] ns-1050.awsdns-03.org
[Name Server] ns-970.awsdns-57.net
[Signing Key]

[登録年月日] 2014/03/28
[有効期限] 2025/03/31
[状態] Active
[最終更新] 2024/06/13 11:43:08 (JST)

Contact Information: [公開連絡窓口]
[名前] Classi Corp.
[Name] Classi Corp.
[Email] 6d4ee968eacb128c6dbfa6d50b77c8e3-5571552@contact.gandi.net
[Web Page]
[郵便番号] 163-0415
[住所] 東京都Shinjuku Mitsui building,2-1-1,Nishi-Shinjuku,Shinjuku-ku
Tokyo, Tokyo
[Postal Address] Shinjuku Mitsui building,2-1-1,Nishi-Shinjuku,Shinjuku-ku
Tokyo, Tokyo
[電話番号] +81.353208553
[FAX番号]

DNS Records
HostA RecordTTL
classi.jp108.157.214.6660
classi.jp108.157.214.6060
classi.jp108.157.214.6960
classi.jp108.157.214.1060
HostMX RecordPriorityTTL
classi.jpaspmx.l.google.com1300
classi.jpaspmx2.googlemail.com10300
classi.jpaspmx3.googlemail.com10300
classi.jpalt1.aspmx.l.google.com5300
classi.jpalt2.aspmx.l.google.com5300
HostNS RecordTTL
classi.jpns-1050.awsdns-03.org86400
classi.jpns-1677.awsdns-17.co.uk86400
classi.jpns-299.awsdns-37.com86400
classi.jpns-970.awsdns-57.net86400
HostTXT RecordTTL
classi.jp06bd464f75d64dc6179dab95027b53d1.classi.jp300
classi.jpMS=ms55578171300
classi.jpatlassian-domain-verification=GUTwM8+pkYzE7PxWr4Mt2OPa6y/0iPsSm6EgCVayojOIal8eajj/leyAoH1j1hJD300
classi.jpdocker-verification=7de529a4-e662-48b7-9a4e-61da44950482300
classi.jpdocker-verification=cf8172f7-a7c7-46fb-b175-fdae7d21cc0e300
classi.jpgoogle-site-verification=FSP07VvDRf7mw-lPadM5ZQX_mEqyIY-RqV6kUcUPXsk300
classi.jpgoogle-site-verification=NVIcte1Ir12EcnZoaVpM3lqcMzTkYSYjtpq7RfLn4D8300
classi.jppardot768793=507ad4f9fff04112c049cc90b71985042b30acf0652b0d625a7ca9470f5b720d300
classi.jpseculio-domain-verification-code=759e11d83e9e0d887efad0d69383deeaf219badc1fe97a1c3d45d339a1ccd749300
classi.jpsophos-domain-verification=6ca671761e315b65c4cffcf2661303febe4032f9d4ec80e5494a5748a0d944d8300
classi.jpv=spf1 include:8ll8jyd33p.powerspf.com -all300

ns-1677.awsdns-17.co.uk
TTL: 900
Email address: awsdns-hostmaster.amazon.com
Serial: 1
Refresh: 7200
Retry: 900
Expire: 1209600
Minimum: 86400

Errors
Warnings

Last tested: 03/19/2018

Desktop
Desktop Speed
26%
Desktop Resource Breakdown
Total Resources57
Number of Hosts13
Static Resources47
JavaScript Resources17
CSS Resources2

Last tested: 03/19/2018

Mobile
Mobile Usability
100%
Mobile Speed
34%
Mobile Resource Breakdown
Total Resources57
Number of Hosts13
Static Resources47
JavaScript Resources17
CSS Resources2
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