Kaij.jp KAI Japanese Language School – In Tokyo with students from over 40 countries around the world. | 東京の日本語学校・カイ日本語スクール

We are a Japanese Language School in Shinjuku-ku, Tokyo, established in 1987. We provide cutting-edge Japanese language education using digital teachi...

Online Status
Offline

Server IP address resolved: No
Http response code: None
Last Checked: 11/02/2026

Kaij.jp attracts 228 unique visitors daily, generating 456 pageviews. The estimated value of kaij.jp is 3,124 USD. Each visitor views approximately 2.14 pages on average.

According to Majestic's traffic estimates, kaij.jp ranks 22,499 globally.

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

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

A recent examination on (July 18, 2024), indicates that kaij.jp has an expired SSL certificate issued by Let's Encrypt (expired on October 06, 2024). Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by Let's Encrypt.

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

Based on Google's Mobile-Friendly test, kaij.jp is optimized for mobile and tablet devices.

Global Rank
1,588,457
Average Load Time
1.04sec
Links In Count
46
Website Value
$2,920
Overview
Last Updated: 11/02/2026
Overall result - kaij.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: 04/03/2026
kaij.jp is safe.
Norton ConnectSafe evaluates kaij.jp for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 05/30/2019
kaij.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
kaij.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: 03/03/2021
kaij.jp is safe.
McAfee assesses kaij.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 kaij.jp for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 11/02/2026
kaij.jp child safety is unknown.
The WOT calculates reputation of the kaij.jp. This reputation system receives ratings from users and information from third-party sources, assesses the kaij.jp for safety features and confirms, whether kaij.jp is suitable for children.

Kaij.jp | SSL Certificate Information
Domainwww.kaij.jp
Issuer OrganizationLet's Encrypt
IssuerE6
Algorithmecdsa-with-SHA384
Valid form07/08/2024
Expiration10/06/2024
SignedCertificate is not self signed
Additional Domains kaij.jp
www.kaij.jp
Server Location

Kaij.jp ASN Information

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

Last Update: 03/23/2026

#
# 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]
[Domain Name] KAIJ.JP

[登録者名] 株式会社ケー・エイー・アイ
[Registrant] K.A.I. Co.,Ltd.

[Name Server] ns-1839.awsdns-37.co.uk
[Name Server] ns-1517.awsdns-61.org
[Name Server] ns-81.awsdns-10.com
[Name Server] ns-690.awsdns-22.net
[Signing Key]

[登録年月日] 2001/05/14
[有効期限] 2025/05/31
[状態] Active
[ロック状態] DomainTransferLocked
[ロック状態] AgentChangeLocked
[最終更新] 2024/06/01 01:05:03 (JST)

Contact Information: [公開連絡窓口]
[名前] 株式会社ケー・エー・アイ
[Name] Kai Co.,LTD.
[Email] marketing@kaij.co.jp
[Web Page]
[郵便番号] 169-0072
[住所] 東京都新宿区
大久保1-15-18 1-15-18
みゆきビル3階
[Postal Address] Shinjuku-ku
1-15 Okubo
Miyuki Bldg. 3F
[電話番号] 03-3205-1356
[FAX番号] 03-3207-4651


DNS Records
HostA RecordTTL
HostMX RecordPriorityTTL
HostNS RecordTTL
HostTXT RecordTTL

Errors

Last tested: 09/08/2019

Desktop
Desktop Speed
82%

Desktop Resource Breakdown
Total Resources49
Number of Hosts13
Static Resources35
JavaScript Resources14
CSS Resources4

Last tested: 06/10/2017

Mobile
Mobile Usability
93%
Mobile Speed
67%

Mobile Resource Breakdown
Total Resources45
Number of Hosts13
Static Resources35
JavaScript Resources11
CSS Resources4
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