Njh.co.jp 株式会社エヌ・ジェイ・ハイ・テック

株式会社エヌ・ジェイ・ハイ・テック(旧社名 エヌ・ジェイ出版販売株式会社)。経営雑誌・ビジネス書籍をはじめとする情報提供サイト。セミナー開催、税務申告・会計ソフトの販売も。中小企業、税理士・会計事務所・士業向け。

Online Status
Online

Server IP address resolved: Yes
Http response code: 200
Response time: 1.03 sec.
Last Checked: 11/02/2026

Njh.co.jp attracts 1,110 unique visitors daily, generating 1,886 pageviews. The estimated value of njh.co.jp is 35,150 USD. Each visitor views approximately 1.82 pages on average.

According to Majestic's traffic estimates, njh.co.jp ranks 20,301 globally, with the majority of its visitors coming from Japan, where it holds the 44,376 position.

It is beneficial for njh.co.jp that their data center (provided by DIGIROCK DigiRock, Inc., JP) is located in Japan, as this helps reduce page load time for most visitors.

See the list of other websites hosted by DIGIROCK DigiRock, Inc., JP.

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

A recent examination on (July 29, 2023), indicates that njh.co.jp has an expired SSL certificate issued by Let's Encrypt (expired on September 12, 2023). 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 njh.co.jp appears to be a safe domain.

Based on Google's Mobile-Friendly test, njh.co.jp is optimized for mobile and tablet devices, although the web page loading speed could be improved.

Global Rank
0
Average Load Time
1.13sec
Links In Count
145
Website Value
$32,850
Overview
Last Updated: 11/02/2026
Overall result - njh.co.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: 03/25/2026
njh.co.jp is safe.
Norton ConnectSafe evaluates njh.co.jp for any unsafe and insecure content. The results are critical for families with young children.
Google Safe Search
Last Updated: 11/11/2016
njh.co.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
njh.co.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: 02/25/2021
njh.co.jp is safe.
McAfee assesses njh.co.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 njh.co.jp for mature or inappropriate content, only security checks are evaluated.
Web of Trust
Last Updated: 11/02/2026
njh.co.jp child safety is unknown.
The WOT calculates reputation of the njh.co.jp. This reputation system receives ratings from users and information from third-party sources, assesses the njh.co.jp for safety features and confirms, whether njh.co.jp is suitable for children.

Njh.co.jp | SSL Certificate Information
Domainnjh.co.jp
Issuer OrganizationLet's Encrypt
IssuerR3
AlgorithmRSA-SHA256
Valid form06/14/2023
Expiration09/12/2023
SignedCertificate is not self signed
Additional Domains njh.co.jp
www.njh.co.jp
Server Location

Njh.co.jp ASN Information

ASN ID: 37907
ASN Title: DIGIROCK DigiRock, Inc., JP

Last Update: 12/25/2025

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS37888 - AS37927'

as-block: AS37888 - AS37927
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. 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: 2009-11-19T01:11:45Z
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 'AS37888 - AS38911'

as-block: AS37888 - AS38911
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: 2009-09-29T06:04:16Z
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 'AS37907'

aut-num: AS37907
as-name: DIGIROCK
descr: DigiRock, Inc.
import:
export:
country: JP
admin-c: KH9600JP
tech-c: KH9600JP
last-modified: 2006-12-12T00:50:34Z
source: JPNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)

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]
a. [ドメイン名] NJH.CO.JP
e. [そしきめい] えぬじぇいしゅっぱんはんばいかぶしきがいしゃ
f. [組織名] エヌジェイ出版販売株式会社
g. [Organization] N.J PUBLISHING SALES Co., Ltd.
k. [組織種別] 株式会社
l. [Organization Type] corporation
m. [登録担当者] YT29208JP
n. [技術連絡担当者] YT14477JP
p. [ネームサーバ] dns01.gmoserver.jp
p. [ネームサーバ] dns02.gmoserver.jp
s. [署名鍵]
[状態] Connected (2025/04/30)
[登録年月日] 1999/04/07
[接続年月日] 1999/04/08
[最終更新] 2024/05/01 01:01:31 (JST)


DNS Records
HostA RecordTTL
njh.co.jp157.7.144.5600
HostMX RecordPriorityTTL
njh.co.jpmx.njh.co.jp10600
HostNS RecordTTL
njh.co.jpdns02.gmoserver.jp600
njh.co.jpdns01.gmoserver.jp600
HostTXT RecordTTL
njh.co.jpv=spf1 include:spf.gmoserver.jp ~all600

dns01.gmoserver.jp
TTL: 600
Email address: hostmaster.njh.co.jp
Serial: 2019092104
Refresh: 28800
Retry: 7200
Expire: 604800
Minimum: 600


Errors
Warnings

Last tested: 05/30/2018

Desktop
Desktop Speed
37%

Desktop Resource Breakdown
Total Resources109
Number of Hosts14
Static Resources91
JavaScript Resources18
CSS Resources4

Last tested: 05/20/2017

Mobile
Mobile Usability
63%
Mobile Speed
34%

Mobile Resource Breakdown
Total Resources102
Number of Hosts10
Static Resources90
JavaScript Resources14
CSS Resources4
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