Bookoff.co.jp 本を売るならBOOKOFF(ブックオフ)

本を売るならブックオフ♪でおなじみのBOOKOFF公式サイト。もちろん本だけではなく、CD・DVD・ゲーム、おもちゃやトレカ・家電・携帯・洋服（古着）など、さまざまな商品を買取・販売しています。

Bookoff.co.jp Overview

Bookoff.co.jp is a Japanese e-commerce website that primarily deals with buying and selling second-hand products such as books, DVDs, CDs, video games, digital appliances, and clothing. The site is hosted on Amazon, Inc., and the SSL certificate is issued by DigiCert Inc, ensuring the safe and secure transmission of user data.

The website's title, "本・家電を売るならBOOKOFF(ブックオフ)", translates to "Sell Books and Appliances at Bookoff." This is a clear indication of the website's purpose, offering the general public a platform to buy and sell used products. The website's description reads "ブックオフの最新CM／百獣の王編・速読王編　HPでも公開中！お近くの店舗が簡単に探せるBOOKOFF公式サイト。" which translates to "Bookoff's latest CM / King of Animals Edition - Speed Reading Edition is now available on our website! Bookoff's official site makes it easy to find nearby stores."

The Bookoff.co.jp website sees an average of 3617 unique users per day, with 11,574.4 pageviews, and has been valued at around 201,480 US dollars. The site's top-level domain is .JP, indicating that it is primarily catering to customers in Japan.

In terms of user-friendliness, the website is a family-friendly platform where people can buy and sell second-hand products. However, it is worth noting that as with any e-commerce site, parents should monitor their children's online activity to ensure they are not purchasing inappropriate products.

Using a PageSpeed Insights tool, the website received a score of 38 for speed. This score indicates that the website's load time may pose an issue for some users, and it could potentially affect their overall user experience. Improvements can be made by optimizing the website's load time, which can be achieved by minimizing the size of images and optimizing server responses.

Overall, Bookoff.co.jp is a website that offers a simple and easy-to-use platform for buying and selling used goods, primarily in Japan. With a few improvements geared towards optimizing load time, it has the potential to attract more users and provide a better user experience.

Bookoff.co.jp Rank Summary

Global Rank

57,873

Average Load Time

0.45sec

Links In Count

781

Website Value

$201,681

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

Country	Visitors
Japan JP	88.3%
Taiwan TW	3.5%
Hong Kong HK	2.8%
Other	5.4%

Country	Pageviews
Japan JP	89.3%
Hong Kong HK	3.4%
Taiwan TW	3.4%
Other	3.9%

Country	Rank
Japan JP	7147
Hong Kong HK	15451
Taiwan TW	20507

Where do visitors go on bookoff.co.jp?

Subdomain	Pageviews
bookoff.co.jp	99.08%
other	0.92%

Subdomain	Pageviews per User
bookoff.co.jp	2.8

Subdomain	Reach
bookoff.co.jp	100%

How popular is bookoff.co.jp?

Period	Global Rank	Global Rank Delta
past 3 months	57873	1527
past month	79841	28499
past week	126433	38871

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	59078	-1560	1	4%	3.2	10%
30	88141	37086	64	-47.658%	2.8	-17.26%
7	192879	86012	25	-52.521%	2	-36.29%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	61001	3076	12	-7.494%
30	82039	27192	85	-36.82%
7	111231	24628	6	-25.39%

Bookoff.co.jp Website Safety

Overview

Last Updated: 09/20/2024

Unknown status.

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: 03/21/2024

bookoff.co.jp is safe.

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

Google Safe Search

Last Updated: 09/20/2024

Unknown status.

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

bookoff.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

bookoff.co.jp is safe.

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

Web of Trust

Last Updated: 01/09/2019

bookoff.co.jp child safety is very good.

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

SSL Information

SSL Checker Tool

Domain	www.bookoff.co.jp
Issuer Organization	DigiCert Inc
Issuer	DigiCert SHA2 Secure Server CA
Algorithm	RSA-SHA256
Valid form	12/05/2018
Expiration	01/10/2020
Signed	Certificate is not self signed
Additional Domains	www.bookoff.co.jp bookoff.co.jp

Bookoff.co.jp Rank History

Alexa Rank shows how popular bookoff.co.jp is in comparison with other sites. The most popular site has Alexa Rank equals 1. If bookoff.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 bookoff.co.jp and pageviews on bookoff.co.jp over the past 3 months.

Bookoff.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: 07/16/2024

#
# 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.
#

Bookoff.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] BOOKOFF.CO.JP
e. [そしきめい] ぶっくおふこーぽれーしょんかぶしきがいしゃ
f. [組織名] ブックオフコーポレーション株式会社
g. [Organization] BOOKOFF Co.
k. [組織種別] 株式会社
l. [Organization Type] Corporation
m. [登録担当者] TF7151JP
n. [技術連絡担当者] TF7151JP
p. [ネームサーバ] ns-1113.awsdns-11.org
p. [ネームサーバ] ns-1732.awsdns-24.co.uk
p. [ネームサーバ] ns-934.awsdns-52.net
p. [ネームサーバ] ns-240.awsdns-30.com
s. [署名鍵]
[状態] Connected (2025/08/31)
[登録年月日] 1997/08/04
[接続年月日] 1997/08/07
[最終更新] 2024/09/01 01:00:35 (JST)

DNS Records

DNS Lookup Tool

Host	A Record	TTL
bookoff.co.jp	124.146.204.130	300

Host	MX Record	Priority	TTL
bookoff.co.jp	mail.bookoff.co.jp	10	28800

Host	NS Record	TTL
bookoff.co.jp	dns-b.iij.ad.jp	28800
bookoff.co.jp	dns-c.iij.ad.jp	28800

Host	TXT Record	TTL
bookoff.co.jp	v=spf1 +ip4:203.183.133.17 -all	600

dns-b.iij.ad.jp
TTL: 28800
Email address: dns-managers.iij.ad.jp
Serial: 1563865237
Refresh: 3600
Retry: 1800
Expire: 3600000
Minimum: 900

Bookoff.co.jp HTML Check

HTML Validation Tool

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

Bad value “large” for attribute “rel” on element “a”: The string “large” is not a registered keyword.

Bad value “medium” for attribute “rel” on element “a”: The string “medium” is not a registered keyword.

Bad value “small” for attribute “rel” on element “a”: The string “small” is not a registered keyword.

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

Bad value “” for attribute “name” on element “input”: Must not be empty.

Bad value “_brank” for attribute “target” on element “a”: Reserved keyword “brank” used.

End tag “p” seen, but there were open elements.

Unclosed element “a”.

No “a” element in scope but a “a” end tag seen.

Duplicate attribute “style”.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “allowtransparency” attribute on the “iframe” element is obsolete. Use CSS instead.

Warnings

The “banner” role is unnecessary for element “header”.

The “navigation” role is unnecessary for element “nav”.

The “main” role is unnecessary for element “main”.

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

The “contentinfo” role is unnecessary for element “footer”.

Bookoff.co.jp Desktop Performance

Last tested: 08/14/2016

Desktop Speed

47%

Leverage browser caching

Enable compression

Optimize images

Minify JavaScript

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

Minify CSS

Minify HTML

Desktop Resource Breakdown

Total Resources	247
Number of Hosts	34
Static Resources	172
JavaScript Resources	81
CSS Resources	18

Bookoff.co.jp Mobile Insights

Last tested: 08/14/2016

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

38%

Leverage browser caching

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

Enable compression

Optimize images

Minify JavaScript

Prioritize visible content

Minify CSS

Minify HTML

Mobile Resource Breakdown

Total Resources	247
Number of Hosts	33
Static Resources	167
JavaScript Resources	71
CSS Resources	16

Bookoff.co.jp Common Typos

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www.bookofdf.co.jp
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www.bookofrf.co.jp
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www.bookofft.co.jp
www.bookofg.co.jp
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www.bookoffv.co.jp

Bookoff.co.jp 本を売るならBOOKOFF(ブックオフ)

本を売るならブックオフ♪でおなじみのBOOKOFF公式サイト。もちろん本だけではなく、CD・DVD・ゲーム、おもちゃやトレカ・家電・携帯・洋服（古着）など、さまざまな商品を買取・販売しています。

Bookoff.co.jp Overview

Bookoff.co.jp Rank Summary

Bookoff.co.jp Website Safety

Bookoff.co.jp Rank History

Bookoff.co.jp Hosting Information

Bookoff.co.jp Domain Registration and Settings

Bookoff.co.jp HTML Check

Bookoff.co.jp Desktop Performance

Bookoff.co.jp Mobile Insights

Bookoff.co.jp Similar Audits

Bookoff.co.jp Common Typos