Hht.ac.jp home1.jikeigroup.net
Server IP address resolved: No
Http response code: None
Last Checked: 11/01/2026
Hht.ac.jp attracts 1,564 unique visitors daily, generating 3,129 pageviews. The estimated value of hht.ac.jp is 2,311 USD. Each visitor views approximately 2.14 pages on average.
According to Majestic's traffic estimates, hht.ac.jp ranks 37,044 globally.
Hht.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 K-OPTICOM K-Opticom Corporation, JP.
Hht.ac.jp is registered with the .JP top-level domain. Explore additional websites within the .JP zone.
According to the latest verification on (November 01, 2026), hht.ac.jp has an invalid SSL certificate. Click the "Refresh" button in the Safety Information section for updated SSL details.
According to Google Safe Browsing, Google Safe Search and Symantec hht.ac.jp appears to be a safe domain.
Based on Google's Mobile-Friendly test, hht.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 hht.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 hht.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 hht.ac.jp for mature or inappropriate content, only security checks are evaluated.

The WOT calculates reputation of the hht.ac.jp. This reputation system receives ratings from users and information from third-party sources, assesses the hht.ac.jp for safety features and confirms, whether hht.ac.jp is suitable for children.
| WARNING! | Certificate download error. Previous scan results are shown below. |
| Domain | Unknown |
| Issuer Organization | Unknown |
| Issuer | Unknown |
| Algorithm | Unknown |
| Valid form | Unknown |
| Expiration | Unknown |
| Signed | No information |
| Additional Domains |
ASN ID: 17511
ASN Title: K-OPTICOM K-Opticom Corporation, JP
Last Update: 05/03/2026
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS17408 - AS18409'
as-block: AS17408 - AS18409
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2008-09-04T06:40:26Z
source: APNIC
role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS17408 - AS17651'
as-block: AS17408 - AS17651
descr: APNIC ASN block
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-APNIC-AP
last-modified: 2016-09-30T02:07:37Z
source: APNIC
role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC
% Information related to 'AS17503 - AS17534'
as-block: AS17503 - AS17534
descr: 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.
remarks: 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: APNIC-HM
mnt-lower: MAINT-JPNIC
last-modified: 2017-06-12T04:00:31Z
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 'AS17511'
aut-num: AS17511
as-name: K-Opticom
descr: K-Opticom Corporation
import:
export:
country: JP
admin-c: JP00014196
tech-c: JP00014196
last-modified: 2009-05-09T01:41:06Z
source: JPNIC
% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)
[ 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] HHT.AC.JP
e. [そしきめい] ほっかいどうはいてくのろじーせんもんがっこう
f. [組織名] 北海道ハイテクノロジー専門学校
g. [Organization] HOKKAIDO COLLEGE OF HIGH TECHNOLOGY
k. [組織種別] 専門学校
l. [Organization Type] vocational school
m. [登録担当者] MS15499JP
n. [技術連絡担当者] SN444JP
p. [ネームサーバ] ns1.jikeigroup.net
p. [ネームサーバ] ns3.jikeigroup.net
s. [署名鍵]
[状態] Connected (2022/07/31)
[登録年月日] 1996/07/12
[接続年月日] 1996/09/12
[最終更新] 2021/08/01 01:03:30 (JST)
| Host | A Record | TTL |
|---|---|---|
| hht.ac.jp | 219.122.63.194 | 3600 |
| Host | MX Record | Priority | TTL |
|---|---|---|---|
| hht.ac.jp | a.mx.hht.ac.jp | 0 | 600 |
| Host | NS Record | TTL |
|---|---|---|
| hht.ac.jp | a.ns.hht.ac.jp | 3600 |
| hht.ac.jp | b.ns.hht.ac.jp | 3600 |
| Host | TXT Record | TTL |
|---|---|---|
| hht.ac.jp | adobe-idp-site-verification=8778d37aac8541fb99527cd79c73d51bad51da89e862541bdb235a9d29c6e8cd | 3600 |
| hht.ac.jp | v=spf1 ip4:54.64.124.98 ip4:18.178.45.190 ip4:43.207.26.87 ip4:219.122.63.0/24 ip4:59.158.114.0/24 ip4:153.150.32.128 ip4:153.1 | 3600 |
a.ns.hht.ac.jp
TTL: 2560
Email address: hostmaster.hht.ac.jp
Serial: 1734672290
Refresh: 16384
Retry: 2048
Expire: 1048576
Minimum: 2560
Last tested: 09/08/2019

| Total Resources | 1 |
| Number of Hosts | 1 |
Last tested: 02/10/2018


| Total Resources | 1 |
| Number of Hosts | 1 |
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