Stepnet.co.jp 学習塾ステップ(STEP)|神奈川県の塾・学習塾・進学塾・個別指導
ステップは横浜、藤沢、平塚、茅ヶ崎など神奈川県内全域にある塾(学習塾)です。高校受験STEP、大学受験STEPだけでなく、さらに高みを目指したHi-STEPや生徒の力に合わせた個別指導(K-STEP)で、楽しく分かりやすい授業を展開しています。新制度入試対応の特色検査模試・特色検査講座も実施中!!
Server IP address resolved: Yes
Http response code: 200
Response time: 1.02 sec.
Last Checked: 11/02/2026
Stepnet.co.jp attracts 723 unique visitors daily, generating 723 pageviews. The estimated value of stepnet.co.jp is 6,249 USD. Each visitor views approximately 1.07 pages on average.
According to Majestic's traffic estimates, stepnet.co.jp ranks 19,944 globally.
Stepnet.co.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 SAKURA-B SAKURA Internet Inc., JP.
Stepnet.co.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 stepnet.co.jp has an expired SSL certificate issued by SECOM Trust Systems CO.,LTD. (expired on March 31, 2024). 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, Google Safe Search and Symantec stepnet.co.jp appears to be a safe domain.
Based on Google's Mobile-Friendly test, stepnet.co.jp is optimized for mobile and tablet devices, although the web page loading speed could be improved.

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 stepnet.co.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 stepnet.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 stepnet.co.jp for mature or inappropriate content, only security checks are evaluated.

The WOT calculates reputation of the stepnet.co.jp. This reputation system receives ratings from users and information from third-party sources, assesses the stepnet.co.jp for safety features and confirms, whether stepnet.co.jp is suitable for children.
| Domain | www.stepnet.co.jp |
| Issuer Organization | SECOM Trust Systems CO.,LTD. |
| Issuer | CrossTrust OV CA5 |
| Algorithm | RSA-SHA256 |
| Valid form | 03/28/2023 |
| Expiration | 03/31/2024 |
| Signed | Certificate is not self signed |
| Additional Domains |
www.stepnet.co.jp |
ASN ID: 9370
ASN Title: SAKURA-B SAKURA Internet Inc., JP
Last Update: 12/27/2025
% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html
% Information related to 'AS9216 - AS10239'
as-block: AS9216 - AS10239
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: 2009-05-19T07:00:23Z
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
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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 'AS9349 - AS9380'
as-block: AS9349 - AS9380
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: 2017-06-12T03:54:30Z
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 'AS9370'
aut-num: AS9370
as-name: SAKURA-B
descr: SAKURA Internet Inc.
import: from AS7514 100 accept ANY
import: from AS4694 100 accept ANY
import: from AS9603 100 accept ANY
import: from AS3549 100 accept ANY
import: from AS2497 100 accept ANY
import: from AS9371 100 accept ANY
export: to AS7514 announce AS9370
export: to AS4694 announce AS9370
export: to AS9603 announce AS9370
export: to AS3549 announce AS9370
export: to AS2497 announce AS9370
export: to AS9371 announce AS9370
country: JP
admin-c: KT749JP
tech-c: KT749JP
tech-c: KW419JP
last-modified: 2007-05-23T21:20:05Z
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] STEPNET.CO.JP
e. [そしきめい] かぶしきがいしゃすてっぷきょういくけんきゅうじょ
f. [組織名] 株式会社ステップ教育研究所
g. [Organization] Step Institute of EduCation Co.,LTD
k. [組織種別] 株式会社
l. [Organization Type] Company
m. [登録担当者] MK5728JP
n. [技術連絡担当者] MK5728JP
p. [ネームサーバ] 01.dnsv.jp
p. [ネームサーバ] 02.dnsv.jp
p. [ネームサーバ] 03.dnsv.jp
p. [ネームサーバ] 04.dnsv.jp
s. [署名鍵]
[状態] Connected (2025/07/31)
[登録年月日] 2000/07/10
[接続年月日] 2000/07/11
[最終更新] 2024/08/01 01:03:23 (JST)
| Host | A Record | TTL |
|---|---|---|
| stepnet.co.jp | 210.143.99.49 | 400 |
| Host | MX Record | Priority | TTL |
|---|---|---|---|
| stepnet.co.jp | mail.stepnet.co.jp | 10 | 400 |
| Host | NS Record | TTL |
|---|---|---|
| stepnet.co.jp | ns.stepv.co.jp | 400 |
| Host | TXT Record | TTL |
|---|---|---|
| stepnet.co.jp | v=spf1 +ip4:210.143.99.49 ~all | 400 |
ns.stepv.co.jp
TTL: 400
Email address: webmaster.stepnet.co.jp
Serial: 2014100703
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 400
Last tested: 11/13/2015

| Total Resources | 87 |
| Number of Hosts | 2 |
| Static Resources | 83 |
| JavaScript Resources | 4 |
| CSS Resources | 4 |
Last tested: 08/26/2019


| Total Resources | 118 |
| Number of Hosts | 5 |
| Static Resources | 109 |
| JavaScript Resources | 8 |
| CSS Resources | 6 |
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