Sgk-u.net
Server IP address resolved: No
Http response code: None
Last Checked: 11/02/2026
Sgk-u.net is hosted by SINET-AS Research Organization of Information and Systems, National Institute of Informatics, JP. Check out other websites hosted by SINET-AS Research Organization of Information and Systems, National Institute of Informatics, JP.
See the list of other websites hosted by SINET-AS Research Organization of Information and Systems, National Institute of Informatics, JP.
Sgk-u.net is registered with the .NET top-level domain. Explore additional websites within the .NET zone.
A recent examination on (November 27, 2022), indicates that sgk-u.net has an expired SSL certificate issued by SECOM Trust Systems CO.,LTD. (expired on June 13, 2023). Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by SECOM Trust Systems CO.,LTD..
According to Google Safe Browsing and Symantec sgk-u.net appears to be a safe domain.
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Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
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McAfee assesses sgk-u.net 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 sgk-u.net for mature or inappropriate content, only security checks are evaluated.
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| Domain | www.sgk.ac.jp |
| Issuer Organization | SECOM Trust Systems CO.,LTD. |
| Issuer | NII Open Domain CA - G7 RSA |
| Algorithm | RSA-SHA256 |
| Valid form | 05/13/2022 |
| Expiration | 06/13/2023 |
| Signed | Certificate is not self signed |
| Additional Domains |
www.sgk.ac.jp dns.sgk.ac.jp dns2.sgk.ac.jp |
ASN ID: 2907
ASN Title: SINET-AS Research Organization of Information and Systems, National Institute of Informatics, JP
Last Update: 12/31/2025
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS2907'
% Abuse contact for 'AS2907' is 'hostmaster@nic.ad.jp'
aut-num: AS2907
as-name: JPNIC-2Byte-ASBLOCK-AP
descr: for assignment to JPNIC members
country: JP
admin-c: JNIC1-AP
tech-c: JNIC1-AP
remarks: Authoritative information regarding AS Number
remarks: assignments made from within this block can be
remarks: queried at whois.nic.ad.jp. To only display English output,
remarks: add '/e' at the end of command,
remarks: e.g. 'whois -h whois.nic.ad.jp xxx/e'.
mnt-by: MAINT-JPNIC
mnt-irt: IRT-JPNIC-JP
last-modified: 2016-10-17T00:32:11Z
source: APNIC
irt: IRT-JPNIC-JP
address: Urbannet-Kanda Bldg 4F, 3-6-2 Uchi-Kanda
address: Chiyoda-ku, Tokyo 101-0047, Japan
e-mail: hostmaster@nic.ad.jp
abuse-mailbox: hostmaster@nic.ad.jp
admin-c: JNIC1-AP
tech-c: JNIC1-AP
auth: # Filtered
mnt-by: MAINT-JPNIC
last-modified: 2017-10-18T10:21:54Z
source: APNIC
role: Japan Network Information Center
address: Urbannet-Kanda Bldg 4F
address: 3-6-2 Uchi-Kanda
address: Chiyoda-ku, Tokyo 101-0047,Japan
country: JP
phone: +81-3-5297-2311
fax-no: +81-3-5297-2312
e-mail: hostmaster@nic.ad.jp
admin-c: JI13-AP
tech-c: JE53-AP
nic-hdl: JNIC1-AP
mnt-by: MAINT-JPNIC
last-modified: 2012-08-28T07:58:02Z
source: APNIC
% Information related to 'AS2907'
aut-num: AS2907
as-name: SINET-AS
descr: Research Organization of Information and Systems, National Institute of Informatics
import:
export:
country: JP
admin-c: JP00006158
tech-c: JP00006158
last-modified: 2008-11-28T23:20:25Z
source: JPNIC
% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)
Domain Name: SGK-U.NET
Registry Domain ID: 1877411527_DOMAIN_NET-VRSN
Registrar WHOIS Server: whois.discount-domain.com
Registrar URL: http://gmo.jp
Updated Date: 2023-09-09T15:25:26Z
Creation Date: 2014-09-25T00:43:32Z
Registry Expiry Date: 2024-09-25T00:43:32Z
Registrar: GMO Internet Group, Inc. d/b/a Onamae.com
Registrar IANA ID: 49
Registrar Abuse Contact Email: abuse@gmo.jp
Registrar Abuse Contact Phone: +81.337709199
Domain Status: ok https://icann.org/epp#ok
Name Server: DNS.SGK.AC.JP
Name Server: DNS2.SGK.AC.JP
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-05-09T15:17:15Z
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