Alc.co.jp 英語学習・TOEIC対策・英辞郎 on the WEB | アルク

英語・子供英語・日本語の通信講座や学習書、オンラインサービスを提供するアルクのウェブサイト。あなたのレベルや目的に合った語学学習教材がきっと見つかります。英辞郎 on the WEBやTOEICなどの無料コンテンツも充実。

Alc.co.jp Overview

Alc.co.jp is a Japanese website owned by the prominent educational services provider, Alc Press Inc, that has been offering courses and learning materials to Japanese students since 1969. The website has become one of the most popular online platforms for English learners and teachers in Japan, with 150,475 unique users and 270,855 page views per day.

The website's homepage features a well-organized layout with an easy-to-use menu that connects users to different sections of the site, including English learning courses, study materials, online services, and free content, such as TOEIC test preparation and English-Japanese dictionaries for learners of various levels.

The website utilizes an SSL certificate issued by GlobalSign nv-sa, which proves that the user's data is secure and prevents unauthorized access by a third party.

The website is family-friendly, displaying no content that is inappropriate or explicit. The website's content is geared towards educational and learning purposes, offering a range of materials, including audio and video, quizzes, and study guides, that are relevant and safe for all ages.

PageSpeed Insights scores are not at an ideal level, with a Performance score of 9 and Best Practices, Accessibility, and SEO scores of 54. This is an area where the website owners could consider making some improvements to enhance the site's user experience.

Additionally, the website is hosted by the Amazon Web Services (AWS) platform, which ensures the website's stability, security, and fast page loading times. AWS is known for its reliable infrastructure and scalability, catering to the needs of high traffic websites such as alc.co.jp.

In summary, alc.co.jp is a user-friendly and well-structured website that offers learning resources that cater to a variety of learners at different levels. The website's popularity in Japan is a testament to the quality of its services, and with some improvements to its PageSpeed Insights scores, it could offer a better user experience for learners and teachers alike.

Alc.co.jp Rank Summary

Global Rank

2,548

Average Load Time

1.16sec

Links In Count

1,944

Website Value

$3.6 M

Audience Geography. Where are alc.co.jp visitors located?

Country	Visitors
Japan JP	94.5%
United States US	3%
South Africa ZA	1%
Other	1.5%

Country	Pageviews
Japan JP	94.2%
United States US	2.9%
South Africa ZA	1.9%
Other	1.1%

Country	Rank
Japan JP	170
South Africa ZA	1608
United States US	17479

Where do visitors go on alc.co.jp?

Subdomain	Pageviews
eow.alc.co.jp	40.27%
alc.co.jp	25.18%
eowp.alc.co.jp	15.89%
eowf.alc.co.jp	5.78%
nihongo-student.alc.co.jp	4.28%
eikaiwa-instructor.alc.co.jp	1.89%
ej.alc.co.jp	1.69%
ec.alc.co.jp	1.45%
nihongo.alc.co.jp	0.9%
other	2.69%

Subdomain	Pageviews per User
nihongo-student.alc.co.jp	7
eikaiwa-instructor.alc.co.jp	3.5
eowp.alc.co.jp	2.1
ec.alc.co.jp	2
eowf.alc.co.jp	2
alc.co.jp	1.9
eow.alc.co.jp	1.1
nihongo.alc.co.jp	1
ej.alc.co.jp	1

Subdomain	Reach
eow.alc.co.jp	70.09%
alc.co.jp	24.58%
eowp.alc.co.jp	13.57%
eowf.alc.co.jp	5.3%
ej.alc.co.jp	2.65%
ec.alc.co.jp	1.23%
nihongo.alc.co.jp	1.16%
nihongo-student.alc.co.jp	1.16%
eikaiwa-instructor.alc.co.jp	0.99%

How popular is alc.co.jp?

Period	Global Rank	Global Rank Delta
past 3 months	2548	143
past month	2397	-296
past week	2391	243
yesterday	2322	-195

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	4592	393	123	-4.978%	1.8	-1.11%
30	4386	-596	13	20%	1.8	2%
7	4867	762	12	-12.3%	1.7	-3.49%
1	4960	-1535	13	20%	1.7	30%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	2185	125	275	-3.97%
30	2059	-273	290	10%
7	1986	192	300	-9.134%
1	1955	44	320	-1.36%

Alc.co.jp Website Safety

Overview

Last Updated: 11/22/2024

Overall result - alc.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: 02/01/2024

alc.co.jp is safe.

Norton ConnectSafe evaluates alc.co.jp for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/10/2016

alc.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: 08/11/2020

alc.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: 02/22/2021

alc.co.jp is safe.

McAfee assesses alc.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 alc.co.jp for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

alc.co.jp child safety is very good.

The WOT calculates reputation of the alc.co.jp. This reputation system receives ratings from users and information from third-party sources, assesses the alc.co.jp for safety features and confirms, whether alc.co.jp is suitable for children.

SSL Information

SSL Checker Tool

Domain	alc.co.jp
Issuer Organization	Amazon
Issuer	Amazon RSA 2048 M02
Algorithm	RSA-SHA256
Valid form	07/11/2024
Expiration	08/08/2025
Signed	Certificate is not self signed
Additional Domains	alc.co.jp

Alc.co.jp Rank History

Alexa Rank shows how popular alc.co.jp is in comparison with other sites. The most popular site has Alexa Rank equals 1. If alc.co.jp has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to alc.co.jp and pageviews on alc.co.jp over the past 3 months.

Alc.co.jp Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 16509

ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 07/07/2024

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Alc.co.jp Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

[ 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] ALC.CO.JP
e. [そしきめい] かぶしきがいしゃあるく
f. [組織名] 株式会社アルク
g. [Organization] ALC PRESS INC.
k. [組織種別] 株式会社
l. [Organization Type] Corporation
m. [登録担当者] TK66678JP
n. [技術連絡担当者] TK66678JP
p. [ネームサーバ] ns-1226.awsdns-25.org
p. [ネームサーバ] ns-667.awsdns-19.net
p. [ネームサーバ] ns-1649.awsdns-14.co.uk
p. [ネームサーバ] ns-311.awsdns-38.com
s. [署名鍵]
[状態] Connected (2025/06/30)
[登録年月日] 1995/06/05
[接続年月日] 1995/07/24
[最終更新] 2024/07/01 01:03:27 (JST)

DNS Records

DNS Lookup Tool

Host	A Record	TTL
alc.co.jp	165.100.234.44	600

Host	MX Record	Priority	TTL
alc.co.jp	ALT3.ASPMX.L.GOOGLE.COM	30	3600
alc.co.jp	ASPMX.L.GOOGLE.COM	10	3600
alc.co.jp	ALT1.ASPMX.L.GOOGLE.COM	20	3600
alc.co.jp	ALT2.ASPMX.L.GOOGLE.COM	20	3600
alc.co.jp	ALT4.ASPMX.L.GOOGLE.COM	30	3600

Host	NS Record	TTL
alc.co.jp	viola.scsc3.net	600
alc.co.jp	ns3.scnet.ne.jp	600

Host	TXT Record	TTL
alc.co.jp	_globalsign-domain-verification=rawm9IbP52XIEqjdm6IlWa-wKVA4sD_xfvCIzLy0Mo	3600
alc.co.jp	google-site-verification=-_nYH7RHkN6ulWs-QEs_t4-s_qMcHE61fyJ1Xw5Jjis	3600
alc.co.jp	v=spf1	3600
alc.co.jp	MS=ms59047996	3600

ns3.scnet.ne.jp
TTL: 600
Email address: hostmaster.scnet.ne.jp
Serial: 2019073010
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum: 3600

Alc.co.jp HTML Check

HTML Validation Tool

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Bad value “http://www.w3.org/TR/xhtml1” for the attribute “xmlns” (only “http://www.w3.org/1999/xhtml” permitted here).

Attribute “xmlns:og” not allowed here.

Bad value “Content-Style-Type” for attribute “http-equiv” on element “meta”.

Bad value “Content-Script-Type” for attribute “http-equiv” on element “meta”.

Bad value “” for attribute “action” on element “form”: Must be non-empty.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “font” element is obsolete. Use CSS instead.

Attribute “width” not allowed on element “input” at this point.

Attribute “height” not allowed on element “input” at this point.

Attribute “alt” not allowed on element “input” at this point.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Element “div” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Element “link” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

No space between attributes.

Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.

Attribute “"” not allowed on element “a” at this point.

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

Element “center” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)

The “center” element is obsolete. Use CSS instead.

Duplicate ID “div-gpt-ad-1529904911933-0”.

Warnings

Attribute “xmlns” is not serializable as XML 1.0.

Attribute with the local name “xmlns:og” is not serializable as XML 1.0.

The “type” attribute is unnecessary for JavaScript resources.

The document is not mappable to XML 1.0 due to two consecutive hyphens in a comment.

The “language” attribute on the “script” element is obsolete. You can safely omit it.

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

The “charset” attribute on the “script” element is obsolete.

Attribute “"” is not serializable as XML 1.0.

The first occurrence of ID “div-gpt-ad-1529904911933-0” was here.

Alc.co.jp Lighthouse Performance

Mobile Statistics

Performance 9%

Accessibility 60%

Best Practices 54%

Progressive Web App 18%

Desktop Statistics

Progressive Web App 19%

Seo 91%

Alc.co.jp Desktop Performance

Last tested: 07/10/2017

Desktop Speed

24%

Optimize images

Enable compression

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Minify CSS

Minify HTML

Minify JavaScript

Desktop Resource Breakdown

Total Resources	245
Number of Hosts	61
Static Resources	108
JavaScript Resources	72
CSS Resources	16

Alc.co.jp Mobile Insights

Last tested: 05/21/2017

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

25%

Optimize images

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Enable compression

Minify JavaScript

Minify HTML

Minify CSS

Mobile Resource Breakdown

Total Resources	235
Number of Hosts	60
Static Resources	161
JavaScript Resources	64
CSS Resources	11

Alc.co.jp Common Typos

www.alc.com
www.alc.net
www.alc.org
www.alc.info
www.alc.biz
www.alc.us
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www.qlc.co.jp
www.aqlc.co.jp
www.qalc.co.jp
www.wlc.co.jp
www.awlc.co.jp
www.walc.co.jp
www.slc.co.jp
www.aslc.co.jp
www.salc.co.jp
www.zlc.co.jp
www.azlc.co.jp
www.zalc.co.jp
www.ac.co.jp
www.apc.co.jp
www.alpc.co.jp
www.aplc.co.jp
www.aoc.co.jp
www.aloc.co.jp
www.aolc.co.jp
www.akc.co.jp
www.alkc.co.jp
www.aklc.co.jp
www.al.co.jp
www.alx.co.jp
www.alcx.co.jp
www.alxc.co.jp
www.ald.co.jp
www.alcd.co.jp
www.aldc.co.jp
www.alf.co.jp
www.alcf.co.jp
www.alfc.co.jp
www.alv.co.jp
www.alcv.co.jp
www.alvc.co.jp

Alc.co.jp 英語学習・TOEIC対策・英辞郎 on the WEB | アルク

Alc.co.jp Overview

Alc.co.jp Rank Summary

Alc.co.jp Website Safety

Alc.co.jp Rank History

Alc.co.jp Hosting Information

Alc.co.jp Domain Registration and Settings

Alc.co.jp HTML Check

Alc.co.jp Lighthouse Performance

Alc.co.jp Desktop Performance

Alc.co.jp Mobile Insights

Alc.co.jp Similar Audits

Alc.co.jp Common Typos