R-ac.jp 通信制高校ならルネサンス高校グループ
通信制高校なら国内外どこからでも入学可能なルネサンス高校グループへ。普段の授業はスマホ・タブレット・PCで学習できる！自宅で安心、ネットの高校！
Server IP address resolved: No
Http response code: None
Last Checked: 11/01/2026
R-ac.jp attracts 2,014 unique visitors daily, generating 4,027 pageviews. The estimated value of r-ac.jp is 3,082 USD. Each visitor views approximately 2.14 pages on average.
According to Majestic's traffic estimates, r-ac.jp ranks 27,848 globally.
R-ac.jp server is located in Japan, so we cannot determine if the distance might affect the page load time.
See the list of other websites hosted by AMAZON-02 - Amazon.com, Inc., US.
R-ac.jp is registered with the .JP top-level domain. Explore additional websites within the .JP zone.
A recent examination on (October 16, 2023), indicates that r-ac.jp has an expired wildcard SSL certificate issued by DigiCert, Inc. (expired on March 05, 2024). Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by DigiCert, Inc..
According to Google Safe Browsing and Symantec r-ac.jp appears to be a safe domain.
Based on Google's Mobile-Friendly test, r-ac.jp is optimized for mobile and tablet devices.
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 ConnectSafe evaluates r-ac.jp for any unsafe and insecure content. The results are critical for families with young children.
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.
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 assesses r-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 r-ac.jp for mature or inappropriate content, only security checks are evaluated.
The WOT calculates reputation of the r-ac.jp. This reputation system receives ratings from users and information from third-party sources, assesses the r-ac.jp for safety features and confirms, whether r-ac.jp is suitable for children.
| Domain | *.r-ac.jp |
| Issuer Organization | DigiCert, Inc. |
| Issuer | RapidSSL Global TLS RSA4096 SHA256 2022 CA1 |
| Algorithm | RSA-SHA256 |
| Valid form | 03/03/2023 |
| Expiration | 03/05/2024 |
| Signed | Certificate is not self signed |
| Additional Domains |
*.r-ac.jp r-ac.jp |
ASN ID: 16509
ASN Title: AMAZON-02 - Amazon.com, Inc., US
Last Update: 12/27/2025
#
# 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.
#
[ 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] R-AC.JP
[登録者名] ルネサンス・アカデミー株式会社
[Registrant] Renaissance Academy Corporation
[Name Server] 03.dnsv.jp
[Name Server] 02.dnsv.jp
[Name Server] 01.dnsv.jp
[Name Server] 04.dnsv.jp
[Signing Key]
[登録年月日] 2005/12/07
[有効期限] 2024/12/31
[状態] Active
[最終更新] 2024/07/05 10:17:11 (JST)
Contact Information: [公開連絡窓口]
[名前] ブロードメディア株式会社
[Name] Broadmedia Corporation
[Email] rsystem@broadmedia.co.jp
[Web Page]
[郵便番号] 107-0052
[住所] 東京都港区
赤坂 8-4-14
青山タワープレイス6階
[Postal Address] Minato-ku
8-4-14 Akasaka
Aoyama tower place. 6F
[電話番号] 03-6439-3730
[FAX番号]
| Host | A Record | TTL |
|---|---|---|
| r-ac.jp | 54.65.242.47 | 300 |
| Host | MX Record | Priority | TTL |
|---|---|---|---|
| r-ac.jp | rac-jp0c.mail.protection.outlook.com | 0 | 300 |
| Host | NS Record | TTL |
|---|---|---|
| r-ac.jp | 01.dnsv.jp | 86400 |
| r-ac.jp | 02.dnsv.jp | 86400 |
| r-ac.jp | 03.dnsv.jp | 86400 |
| r-ac.jp | 04.dnsv.jp | 86400 |
| Host | TXT Record | TTL |
|---|---|---|
| r-ac.jp | adobe-idp-site-verification=52afc3eda24ee70ac843b5e8f47d2a7510d53ebd679be303308cb50f01dc339b | 3600 |
| r-ac.jp | MS=ms37858112 | 3600 |
| r-ac.jp | MS=ms50156649 | 3600 |
| r-ac.jp | MS=ms51639582 | 3600 |
| r-ac.jp | google-site-verification=yA-d7C5cHpjBbt5rmSHlQz_2mh9ouiIf3rMmZPQMbXo | 3600 |
01.dnsv.jp
TTL: 86400
Email address: hostmaster.dnsv.jp
Serial: 1559193216
Refresh: 3600
Retry: 900
Expire: 604800
Minimum: 300
Last tested: 08/10/2015
| Total Resources | 161 |
| Number of Hosts | 41 |
| Static Resources | 111 |
| JavaScript Resources | 25 |
| CSS Resources | 14 |
Last tested: 08/10/2015
| Total Resources | 115 |
| Number of Hosts | 33 |
| Static Resources | 85 |
| JavaScript Resources | 30 |
| CSS Resources | 9 |
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