Rinkaiseminar.co.jp 塾・学習塾 臨海セミナー

塾・学習塾・進学塾の臨海セミナー【公式サイト】。臨海セミナーは効果的な学習でテスト対策から東大受験、個別指導まで様々な学習の場を提供する総合進学塾です。無料体験授業受付中!神奈川県・東京都・千葉県・埼玉県・大阪府に広がる臨海ネットワーク。

Rinkaiseminar.co.jp Overview

Rinkaiseminar.co.jp ranking shows that the page is at position 385,306 over the world.

Rinkaiseminar.co.jp hosting company servers are placed in the Japan, but, unfortunately, it’s not possible to identify the countries where the bulk of rinkaiseminar.co.jp users come from and, therefore, we couldn’t define if the distance can influence the webpage load time. See the list of other webpages hosted on OCN NTT Communications Corporation, JP servers.

In terms of rank-to-traffic ratio, rinkaiseminar.co.jp has 356 unique users per day, viewing 1,799 pages. The rank based value of rinkaiseminar.co.jp is 35,478 USD. Every user makes 5.40 pageviews on average.

Rinkaiseminar.co.jp boasts a link base consisting of 238 referring domains and 299 external backlinks, as revealed by the data obtained from web network scanning.

Rinkaiseminar.co.jp top-level domain belongs to .JP domain zone. Check other webpages in .JP zone.

According the last verification test in July 04, 2024, rinkaiseminar.co.jp has an expired SSL certificate issued by COMODO CA Limited (expired on March 28, 2020). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by COMODO CA Limited.

Based on data from Google Safe Browsing, Google Safe Search, Symantec and Web of Trust rinkaiseminar.co.jp is a fairly safe domain.

According the Mobile-Friendly test by Google rinkaiseminar.co.jp is nice optimized for mobile devices and tablets, however the webpage speed could be improved.

Rinkaiseminar.co.jp Rank Summary

Global Rank
385,306
Average Load Time
0.41sec
Links In Count
59
Website Value
$32,850

Rinkaiseminar.co.jp Website Safety

logo
Overview
Last Updated: 12/20/2025
Overall result - rinkaiseminar.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 logo
Norton Connect Safe
Last Updated: 03/27/2025
rinkaiseminar.co.jp is safe.
Norton ConnectSafe evaluates rinkaiseminar.co.jp for any unsafe and insecure content. The results are critical for families with young children.
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Google Safe Search
Last Updated: 03/19/2019
rinkaiseminar.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.
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Google Safe Browsing
Last Updated: 01/09/2019
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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.
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Site Advisor
Last Updated: 02/26/2021
rinkaiseminar.co.jp is safe.
McAfee assesses rinkaiseminar.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 rinkaiseminar.co.jp for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 01/10/2019
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The WOT calculates reputation of the rinkaiseminar.co.jp. This reputation system receives ratings from users and information from third-party sources, assesses the rinkaiseminar.co.jp for safety features and confirms, whether rinkaiseminar.co.jp is suitable for children.

SSL Information
Domainwww.rinkaiseminar.co.jp
Issuer OrganizationCOMODO CA Limited
IssuerCOMODO RSA Domain Validation Secure Server CA
AlgorithmRSA-SHA256
Valid form03/29/2017
Expiration03/28/2020
SignedCertificate is not self signed
Additional Domains www.rinkaiseminar.co.jp
www.evers-suit.com
www.rinkaiglobal.co.jp
www.washoku-tatsumi.com

Rinkaiseminar.co.jp Rank History

Rinkaiseminar.co.jp Hosting Information

Server Location

ASN Information

Last Update: 07/11/2025

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

% Information related to 'AS4608 - AS4864'

as-block: AS4608 - AS4864
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 'AS4672 - AS4735'

as-block: AS4672 - AS4735
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: 2017-06-12T03:54:29Z
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 'AS4713'

aut-num: AS4713
as-name: OCN
descr: NTT Communications Corporation
import:
export:
country: JP
admin-c: AY1361JP
tech-c: TT10660JP
tech-c: TT15086JP
last-modified: 2009-11-14T02:13:12Z
source: JPNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

Rinkaiseminar.co.jp Domain Registration and Settings

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] RINKAISEMINAR.CO.JP
e. [そしきめい] かぶしきがいしゃ りんかい
f. [組織名] 株式会社臨海
g. [Organization] Rinkai inc.
k. [組織種別] 株式会社
l. [Organization Type] Company
m. [登録担当者] SE11171JP
n. [技術連絡担当者] SE11171JP
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 (2024/11/30)
[登録年月日] 2000/11/08
[接続年月日] 2000/11/22
[最終更新] 2024/10/08 09:15:47 (JST)


DNS Records
HostA RecordTTL
rinkaiseminar.co.jp222.151.218.98600
HostMX RecordPriorityTTL
rinkaiseminar.co.jpwx20.wadax.ne.jp10600
rinkaiseminar.co.jpkitazo.rinkaiseminar.co.jp20600
HostNS RecordTTL
rinkaiseminar.co.jpNS-TK022.OCN.AD.jp600
rinkaiseminar.co.jpmermaid.rinkaiseminar.co.jp600
HostTXT RecordTTL
rinkaiseminar.co.jpv=spf1600

mermaid.rinkaiseminar.co.jp
TTL: 600
Email address: info.rinkaiseminar.co.jp
Serial: 2020090210
Refresh: 28800
Retry: 14400
Expire: 3600000
Minimum: 1800

Rinkaiseminar.co.jp HTML Check

Warnings

Errors

Rinkaiseminar.co.jp Desktop Performance

Last tested: 09/02/2015

Speedometer image
Desktop Speed
58%

Desktop Resource Breakdown
Total Resources88
Number of Hosts12
Static Resources77
JavaScript Resources8
CSS Resources4

Rinkaiseminar.co.jp Mobile Insights

Last tested: 06/17/2019

Speedometer image
Mobile Usability
99%
Speedometer image
Mobile Speed
46%

Mobile Resource Breakdown
Total Resources83
Number of Hosts25
Static Resources38
JavaScript Resources20
CSS Resources7

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