bookoffonline.co.jp website information.
bookoffonline.co.jp domain name is registered by .JP top-level domain registry. See the other sites registred in .JP domain zone.
No name server records were found.
and probably website bookoffonline.co.jp is hosted by Hetzner Online GmbH web hosting company. Check the complete list of other most popular websites hosted by Hetzner Online GmbH hosting company.
According to Alexa traffic rank the highest website bookoffonline.co.jp position was 140381 (in the world). The lowest Alexa rank position was 233456. Now website bookoffonline.co.jp ranked in Alexa database as number 230045 (in the world).
Website bookoffonline.co.jp Desktop speed measurement score (42/100) is better than the results of 16.45% of other sites shows that the page desktop performance can be improved.
bookoffonline.co.jp Mobile usability score (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of bookoffonline.co.jp (33/100) is better than the results of 12.14% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Apr-26-2024 | 230,045 | 240 |
| Apr-25-2024 | 230,285 | 0 |
| Apr-24-2024 | 230,285 | 0 |
| Apr-23-2024 | 230,285 | 1,262 |
| Apr-22-2024 | 231,547 | -3,168 |
| Apr-21-2024 | 228,379 | 830 |
| Apr-20-2024 | 229,209 | 0 |
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bookoffonline.co.jp Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
bookoffonline.co.jp whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
bookoffonline.co.jp server information
Servers Location
| IP Address |
|---|
| Country |
|---|
bookoffonline.co.jp desktop page speed rank
Last tested: 2016-06-13
Desktop Speed
Bad
42/100
bookoffonline.co.jp Desktop Speed Test Quick Summary
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priority - 49 Leverage browser caching
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http://www.bookoffonline.co.jp/files/inc_img/tp_osusume_morebtn.gif (expiration not specified)
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http://www.bookoffonline.co.jp/files/inc_js/jquery.csv.js (expiration not specified)
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http://www.bookoffonline.co.jp/js/disableDoubleSubmit.js (expiration not specified)
http://www.bookoffonline.co.jp/js/jquery-1.4.3.js (expiration not specified)
http://i.yimg.jp/images/listing/tool/ywapb/pb.js (9.4 minutes)
http://s.yimg.jp/images/listing/tool/cv/conversion.js (10 minutes)
http://s.yjtag.jp/tag.js (15 minutes)
http://www.googletagmanager.com/gtm.js?id=GTM-KDJ98H (16.2 minutes)
https://seal.websecurity.norton.com/getseal?at=0&s…ang=ja&tpt=transparent (36.6 minutes)
https://seal.verisign.com/getseal?host_name=www.bo…ransparent=YES&lang=ja (38.9 minutes)
http://stats.g.doubleclick.net/dc.js (2 hours)
priority - 14 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 12 blocking script resources and 16 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://www.bookoffonline.co.jp/js/bo/common.js?v=20131003
http://www.bookoffonline.co.jp/js/bo/cssselecter.js
http://www.bookoffonline.co.jp/js/disp.js?v=20131111
http://www.bookoffonline.co.jp/js/popUp.js?v=20131003
http://www.bookoffonline.co.jp/js/css_browser_selector.js?v=20131003
http://www.bookoffonline.co.jp/js/jquery-1.4.3.js
http://www.bookoffonline.co.jp/js/disableDoubleSubmit.js
http://www.bookoffonline.co.jp/js/illigra/load-ill…js?key=bo,ver=20131011
http://www.bookoffonline.co.jp/files/inc_js/ac/_a_cast.js
http://www.bookoffonline.co.jp/files/inc_js/item_volume_sum_v0.1.js
http://www.bookoffonline.co.jp/files/common/js/jquery.menu-aim.js
http://www.bookoffonline.co.jp/files/common/js/jquery.slider.fix.js
http://www.bookoffonline.co.jp/js/bo/cssselecter.js
http://www.bookoffonline.co.jp/js/disp.js?v=20131111
http://www.bookoffonline.co.jp/js/popUp.js?v=20131003
http://www.bookoffonline.co.jp/js/css_browser_selector.js?v=20131003
http://www.bookoffonline.co.jp/js/jquery-1.4.3.js
http://www.bookoffonline.co.jp/js/disableDoubleSubmit.js
http://www.bookoffonline.co.jp/js/illigra/load-ill…js?key=bo,ver=20131011
http://www.bookoffonline.co.jp/files/inc_js/ac/_a_cast.js
http://www.bookoffonline.co.jp/files/inc_js/item_volume_sum_v0.1.js
http://www.bookoffonline.co.jp/files/common/js/jquery.menu-aim.js
http://www.bookoffonline.co.jp/files/common/js/jquery.slider.fix.js
Optimize CSS Delivery of the following:
http://www.bookoffonline.co.jp/css/import.css?20141030
http://www.bookoffonline.co.jp/css/basic-120108.css?20131003
http://www.bookoffonline.co.jp/css/bko-110203.css?20131003
http://www.bookoffonline.co.jp/css/header-120108.css?20131003
http://www.bookoffonline.co.jp/css/footer-120108.css?20131003
http://www.bookoffonline.co.jp/css/layout-110725.css?20141030
http://www.bookoffonline.co.jp/css/layout_f-110725.css?20131003
http://www.bookoffonline.co.jp/css/detail-110920.css?20131007
http://www.bookoffonline.co.jp/css/cate_top-110203.css?20131003
http://www.bookoffonline.co.jp/css/copyright-110203.css?20131003
http://www.bookoffonline.co.jp/css/iframe-120108.css?20131003
http://www.bookoffonline.co.jp/css/pop-120108.css?20131003
http://www.bookoffonline.co.jp/css/pop_sub-110203.css?20131003
http://www.bookoffonline.co.jp/css/recommend-130821.css?20131003
http://www.bookoffonline.co.jp/css/win-110622.css
http://www.bookoffonline.co.jp/files/inc_css/include.css?20150814
http://www.bookoffonline.co.jp/css/basic-120108.css?20131003
http://www.bookoffonline.co.jp/css/bko-110203.css?20131003
http://www.bookoffonline.co.jp/css/header-120108.css?20131003
http://www.bookoffonline.co.jp/css/footer-120108.css?20131003
http://www.bookoffonline.co.jp/css/layout-110725.css?20141030
http://www.bookoffonline.co.jp/css/layout_f-110725.css?20131003
http://www.bookoffonline.co.jp/css/detail-110920.css?20131007
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http://www.bookoffonline.co.jp/css/copyright-110203.css?20131003
http://www.bookoffonline.co.jp/css/iframe-120108.css?20131003
http://www.bookoffonline.co.jp/css/pop-120108.css?20131003
http://www.bookoffonline.co.jp/css/pop_sub-110203.css?20131003
http://www.bookoffonline.co.jp/css/recommend-130821.css?20131003
http://www.bookoffonline.co.jp/css/win-110622.css
http://www.bookoffonline.co.jp/files/inc_css/include.css?20150814
priority - 9 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 83.2KiB (22% reduction).
Minifying http://www.bookoffonline.co.jp/css/layout-110725.css?20141030 could save 25.8KiB (21% reduction).
Minifying http://www.bookoffonline.co.jp/files/inc_css/include.css could save 19.8KiB (23% reduction).
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Minifying http://www.bookoffonline.co.jp/css/pop-120108.css?20131003 could save 1.3KiB (20% reduction).
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Minifying http://www.bookoffonline.co.jp/css/iframe-120108.css?20131003 could save 557B (30% reduction).
Minifying http://www.bookoffonline.co.jp/js/illigra/common.css?v=20131011 could save 513B (14% reduction).
Minifying http://www.bookoffonline.co.jp/files/inc_css/include.css could save 19.8KiB (23% reduction).
Minifying http://www.bookoffonline.co.jp/files/inc_css/include.css?20150814 could save 19.8KiB (23% reduction).
Minifying http://www.bookoffonline.co.jp/css/detail-110920.css?20131007 could save 4.8KiB (21% reduction).
Minifying http://www.bookoffonline.co.jp/css/header-120108.css?20131003 could save 3.3KiB (19% reduction).
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Minifying http://www.bookoffonline.co.jp/css/pop-120108.css?20131003 could save 1.3KiB (20% reduction).
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Minifying http://www.bookoffonline.co.jp/css/basic-120108.css?20131003 could save 793B (41% reduction).
Minifying http://www.bookoffonline.co.jp/css/iframe-120108.css?20131003 could save 557B (30% reduction).
Minifying http://www.bookoffonline.co.jp/js/illigra/common.css?v=20131011 could save 513B (14% reduction).
priority - 8 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 77.1KiB (26% reduction).
Losslessly compressing http://www.bookoffonline.co.jp/images/parts/g_navi_on110203.gif could save 4.5KiB (38% reduction).
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Losslessly compressing http://www.bookoffonline.co.jp/files/inc_img/selltop215.gif could save 1.3KiB (21% reduction).
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Losslessly compressing http://www.bookoffonline.co.jp/images/parts/logo.gif could save 947B (12% reduction).
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Losslessly compressing http://www.bookoffonline.co.jp/files/inc_img/cart_sale215.gif could save 854B (19% reduction).
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Losslessly compressing http://www.bookoffonline.co.jp/files/inc_img/tpmain_jaccs215_0309.gif could save 669B (15% reduction).
Losslessly compressing http://www.bookoffonline.co.jp/files/inc_img/list_rank240.gif could save 654B (14% reduction).
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Losslessly compressing http://www.bookoffonline.co.jp/files/inc_img/tphd_cp20160610.gif could save 4.3KiB (29% reduction).
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Losslessly compressing http://www.bookoffonline.co.jp/files/inc_img/tpmain_hugall240_75yahoo.jpg could save 4KiB (16% reduction).
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priority - 3 Minify JavaScript
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priority - 2 Minify HTML
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priority - 2 Prioritize visible content
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bookoffonline.co.jp Desktop Resources
| Total Resources | 160 |
| Number of Hosts | 23 |
| Static Resources | 102 |
| JavaScript Resources | 45 |
| CSS Resources | 20 |
bookoffonline.co.jp Desktop Resource Breakdown
bookoffonline.co.jp mobile page speed rank
Last tested: 2019-12-02
Mobile Speed
Bad
33/100
bookoffonline.co.jp Mobile Speed Test Quick Summary
priority - 88 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
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https://www.bookoffonline.co.jp/mbfiles/top/images…/ichibannaitahon60.jpg (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/cd/cafe-bgm-60.jpg (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…/girls-lovestory60.jpg (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/comic/kanketsu60.jpg (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/comic/popularity-60.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…ic/tyouhen-comic60.jpg (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/common/icons.png (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/common/modal_bg.png (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…er/link_selltop_2x.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/header/logo_2x.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…r/navigation_pic01.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…r/navigation_pic02.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…r/navigation_pic03.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…r/navigation_pic04.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…r/navigation_pic05.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/artist-h-60.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/artist-y-60.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…o-coupon-11-29-180.png (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…oupon-soft-180-red.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…191122-blackfriday.png (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…paign-ico-kuji-180.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/genreindex-110.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/lnovel-top-60.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/media_anime.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/media_drama.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/media_movie.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/ranking2019h_120.jpg (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images/top/sellfund-120_120.png (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…/sellfund_ZW016_60.png (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…/sellfund_ZW017_60.png (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/images…tpmain-receive-120.gif (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/css_browser_selector.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/jQueryAutoHeight.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.cookie.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.imagesloaded.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.lazyload-top.min.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.mobile.custom.min.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.scrollTo.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/top/js/modal.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/tracking/ac/acSearchConst.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/tracking/ac/clicktag.js (expiration not specified)
https://www.bookoffonline.co.jp/mbfiles/tracking/ac/ppz_clip.js (expiration not specified)
https://js.fout.jp/segmentation.js (6.2 minutes)
https://b92.yahoo.co.jp/js/s_retargeting.js (10 minutes)
https://s.yimg.jp/images/listing/tool/cv/conversion.js (10 minutes)
https://s.yimg.jp/images/listing/tool/cv/ytag.js (10 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-5DL5K7 (15 minutes)
https://js.fout.jp/prefs.js (18.7 minutes)
https://connect.facebook.net/en_US/fbevents.js (20 minutes)
https://connect.facebook.net/signals/config/933129…2571?v=2.9.14&r=stable (20 minutes)
https://js.fout.jp/redirect.js (29 minutes)
https://www.googleadservices.com/pagead/conversion_async.js (60 minutes)
https://code.usergram.info/js/usergram.js (2 hours)
https://stats.g.doubleclick.net/dc.js (2 hours)
https://cs.nakanohito.jp/b3/bi.js (3 hours)
priority - 70 Avoid landing page redirects
Your page has 5 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://bookoffonline.co.jp/
https://bookoffonline.co.jp/
http://www.bookoffonline.co.jp/
https://www.bookoffonline.co.jp/
http://www.bookoffonline.co.jp/mb/CSfMbHomeMain.jsp
https://www.bookoffonline.co.jp/mb/CSfMbHomeMain.jsp
https://bookoffonline.co.jp/
http://www.bookoffonline.co.jp/
https://www.bookoffonline.co.jp/
http://www.bookoffonline.co.jp/mb/CSfMbHomeMain.jsp
https://www.bookoffonline.co.jp/mb/CSfMbHomeMain.jsp
priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 15 blocking script resources and 7 blocking CSS resources. This causes a delay in rendering your page.
Approximately 65% of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.scrollTo.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jQueryAutoHeight.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.imagesloaded.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.cookie.js
https://www.bookoffonline.co.jp/mbfiles/top/js/css_browser_selector.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.mobile.custom.min.js
https://www.bookoffonline.co.jp/mbfiles/top/js/modal.js
https://www.bookoffonline.co.jp/mbfiles/top/js/common.js?var=20150826
https://www.bookoffonline.co.jp/mbfiles/js/util/bo…s_v0.2.js?var=20151224
https://www.bookoffonline.co.jp/mbfiles/js/loginou…t_v0.1.js?var=20150826
https://www.bookoffonline.co.jp/mbfiles/js/accordion.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.lazyload-top.min.js
https://www.bookoffonline.co.jp/mbfiles/js/delvfre…v0.2.1.js?var=20191111
https://www.bookoffonline.co.jp/mbfiles/js/jquery.timer.js
https://www.bookoffonline.co.jp/mbfiles/js/searchf…m_v0.2.js?var=20160229
https://www.bookoffonline.co.jp/mbfiles/top/js/jQueryAutoHeight.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.imagesloaded.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.cookie.js
https://www.bookoffonline.co.jp/mbfiles/top/js/css_browser_selector.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.mobile.custom.min.js
https://www.bookoffonline.co.jp/mbfiles/top/js/modal.js
https://www.bookoffonline.co.jp/mbfiles/top/js/common.js?var=20150826
https://www.bookoffonline.co.jp/mbfiles/js/util/bo…s_v0.2.js?var=20151224
https://www.bookoffonline.co.jp/mbfiles/js/loginou…t_v0.1.js?var=20150826
https://www.bookoffonline.co.jp/mbfiles/js/accordion.js
https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.lazyload-top.min.js
https://www.bookoffonline.co.jp/mbfiles/js/delvfre…v0.2.1.js?var=20191111
https://www.bookoffonline.co.jp/mbfiles/js/jquery.timer.js
https://www.bookoffonline.co.jp/mbfiles/js/searchf…m_v0.2.js?var=20160229
Optimize CSS Delivery of the following:
https://www.bookoffonline.co.jp/mbfiles/css/layout-top.css
https://www.bookoffonline.co.jp/mbfiles/top/css/layout.css
https://www.bookoffonline.co.jp/mbfiles/css/sp_search_form.css
https://www.bookoffonline.co.jp/mbfiles/js/photoswipe/tutorial.css
https://www.bookoffonline.co.jp/mbfiles/js/photoswipe/photoswipe.css
https://www.bookoffonline.co.jp/mbfiles/js/photosw…-skin/default-skin.css
https://www.bookoffonline.co.jp/mbfiles/css/app-common.css
https://www.bookoffonline.co.jp/mbfiles/top/css/layout.css
https://www.bookoffonline.co.jp/mbfiles/css/sp_search_form.css
https://www.bookoffonline.co.jp/mbfiles/js/photoswipe/tutorial.css
https://www.bookoffonline.co.jp/mbfiles/js/photoswipe/photoswipe.css
https://www.bookoffonline.co.jp/mbfiles/js/photosw…-skin/default-skin.css
https://www.bookoffonline.co.jp/mbfiles/css/app-common.css
priority - 7 Reduce server response time
In our test, your server responded in 0.30 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 4 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 39KiB (34% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images…/girls-lovestory60.jpg could save 8.6KiB (59% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/ban…p/cp191129-318x132.png could save 5.2KiB (33% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/comic/kanketsu60.jpg could save 4.3KiB (38% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/ban…91122-soft-318x132.png could save 3.8KiB (40% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images…ic/tyouhen-comic60.jpg could save 3.4KiB (34% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/ban…191122-all-318x132.png could save 3.2KiB (39% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/cd/cafe-bgm-60.jpg could save 2.4KiB (29% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images…/ichibannaitahon60.jpg could save 1.6KiB (35% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/top/media_drama.gif could save 1.2KiB (41% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/top/genreindex-110.gif could save 875B (31% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/sell/commo…20181214/btn-close.png could save 864B (38% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/book/genre-top-60.gif could save 838B (19% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/top/ranking2019h_120.jpg could save 779B (12% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/images/item_l_cd-size.gif could save 748B (13% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/comic/popularity-60.gif could save 471B (11% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/search/image/form/btn-stock-off.png could save 427B (21% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/material/icon-twitter.png could save 216B (14% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/material/arrow.png could save 198B (47% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/ban…p/cp191129-318x132.png could save 5.2KiB (33% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/comic/kanketsu60.jpg could save 4.3KiB (38% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/ban…91122-soft-318x132.png could save 3.8KiB (40% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images…ic/tyouhen-comic60.jpg could save 3.4KiB (34% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/ban…191122-all-318x132.png could save 3.2KiB (39% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/cd/cafe-bgm-60.jpg could save 2.4KiB (29% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images…/ichibannaitahon60.jpg could save 1.6KiB (35% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/top/media_drama.gif could save 1.2KiB (41% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/top/genreindex-110.gif could save 875B (31% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/sell/commo…20181214/btn-close.png could save 864B (38% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/book/genre-top-60.gif could save 838B (19% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/top/ranking2019h_120.jpg could save 779B (12% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/images/item_l_cd-size.gif could save 748B (13% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/top/images/comic/popularity-60.gif could save 471B (11% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/search/image/form/btn-stock-off.png could save 427B (21% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/material/icon-twitter.png could save 216B (14% reduction).
Compressing https://www.bookoffonline.co.jp/mbfiles/assets/material/arrow.png could save 198B (47% reduction).
priority - 4 Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 38.3KiB (71% reduction).
Compressing https://ppz31.a-cast.jp/c35005/query?cid=35005&cha…=&s=&rand=930644855902 could save 30.9KiB (75% reduction).
Compressing https://tracer31.a-cast.jp/entry.js?cid=35005 could save 3.3KiB (64% reduction).
Compressing https://ppz31.a-cast.jp/c35005/query?cid=35005&cha…=&s=&rand=655158902829 could save 1.4KiB (65% reduction).
Compressing https://pixel.mathtag.com/event/js?mt_id=1404487&m…4600-81c0-ea8fdaae55cf could save 770B (56% reduction).
Compressing https://tracer31.a-cast.jp/ad/bookoffonline.co.jp/…_del=&ac_ck=&adsvr_ck= could save 704B (45% reduction).
Compressing https://tracer31.a-cast.jp/ad/bookoffonline.co.jp/…_del=&ac_ck=&adsvr_ck= could save 694B (47% reduction).
Compressing https://tracer31.a-cast.jp/ad/bookoffonline.co.jp/…_del=&ac_ck=&adsvr_ck= could save 585B (50% reduction).
Compressing https://tracer31.a-cast.jp/entry.js?cid=35005 could save 3.3KiB (64% reduction).
Compressing https://ppz31.a-cast.jp/c35005/query?cid=35005&cha…=&s=&rand=655158902829 could save 1.4KiB (65% reduction).
Compressing https://pixel.mathtag.com/event/js?mt_id=1404487&m…4600-81c0-ea8fdaae55cf could save 770B (56% reduction).
Compressing https://tracer31.a-cast.jp/ad/bookoffonline.co.jp/…_del=&ac_ck=&adsvr_ck= could save 704B (45% reduction).
Compressing https://tracer31.a-cast.jp/ad/bookoffonline.co.jp/…_del=&ac_ck=&adsvr_ck= could save 694B (47% reduction).
Compressing https://tracer31.a-cast.jp/ad/bookoffonline.co.jp/…_del=&ac_ck=&adsvr_ck= could save 585B (50% reduction).
priority - 1 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 13.8KiB (32% reduction).
Minifying https://www.bookoffonline.co.jp/mbfiles/js/photoswipe/tutorial.js could save 1.4KiB (42% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/searchf…m_v0.2.js?var=20160229 could save 1.1KiB (25% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.scrollTo.js could save 1KiB (43% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/recommend/ac/ppz_sp.js could save 995B (27% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/tracking/ac/acSearchConst.js could save 847B (57% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/recomme…z_contents_draw_top.js could save 806B (39% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/tracking/ac/clicktag.js could save 791B (31% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/util/bo…s_v0.2.js?var=20151224 could save 757B (23% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/ac/_a_cast.js could save 707B (28% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/common.js?var=20150826 could save 644B (27% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.cookie.js could save 606B (44% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/jquery.cookie.js could save 575B (42% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jQueryAutoHeight.js could save 500B (50% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/recommend/ac/ppz_draw_sp_top.js could save 422B (24% reduction) after compression.
Minifying https://js.fout.jp/segmentation.js could save 408B (17% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/tracking/ac/ppz_clip.js could save 405B (39% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.imagesloaded.js could save 361B (56% reduction) after compression.
Minifying https://pixel.mathtag.com/event/js?mt_id=1404487&m…4600-81c0-ea8fdaae55cf could save 324B (24% reduction).
Minifying https://www.bookoffonline.co.jp/mbfiles/js/app-common.js could save 294B (46% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/jquery.user-guide-sessionid.js could save 286B (25% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/jquery.timer.js could save 211B (23% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/loginou…t_v0.1.js?var=20150826 could save 184B (46% reduction) after compression.
Minifying https://js.fout.jp/redirect.js could save 158B (17% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/delvfre…v0.2.1.js?var=20191111 could save 145B (23% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/css_browser_selector.js could save 127B (19% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/accordion.js could save 112B (29% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/searchf…m_v0.2.js?var=20160229 could save 1.1KiB (25% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.scrollTo.js could save 1KiB (43% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/recommend/ac/ppz_sp.js could save 995B (27% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/tracking/ac/acSearchConst.js could save 847B (57% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/recomme…z_contents_draw_top.js could save 806B (39% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/tracking/ac/clicktag.js could save 791B (31% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/util/bo…s_v0.2.js?var=20151224 could save 757B (23% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/ac/_a_cast.js could save 707B (28% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/common.js?var=20150826 could save 644B (27% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.cookie.js could save 606B (44% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/jquery.cookie.js could save 575B (42% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jQueryAutoHeight.js could save 500B (50% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/recommend/ac/ppz_draw_sp_top.js could save 422B (24% reduction) after compression.
Minifying https://js.fout.jp/segmentation.js could save 408B (17% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/tracking/ac/ppz_clip.js could save 405B (39% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/jquery.imagesloaded.js could save 361B (56% reduction) after compression.
Minifying https://pixel.mathtag.com/event/js?mt_id=1404487&m…4600-81c0-ea8fdaae55cf could save 324B (24% reduction).
Minifying https://www.bookoffonline.co.jp/mbfiles/js/app-common.js could save 294B (46% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/jquery.user-guide-sessionid.js could save 286B (25% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/jquery.timer.js could save 211B (23% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/loginou…t_v0.1.js?var=20150826 could save 184B (46% reduction) after compression.
Minifying https://js.fout.jp/redirect.js could save 158B (17% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/delvfre…v0.2.1.js?var=20191111 could save 145B (23% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/top/js/css_browser_selector.js could save 127B (19% reduction) after compression.
Minifying https://www.bookoffonline.co.jp/mbfiles/js/accordion.js could save 112B (29% reduction) after compression.
priority - 1 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 6.1KiB (29% reduction).
Minifying https://www.bookoffonline.co.jp/mb/CSfMbHomeMain.jsp could save 5.6KiB (31% reduction) after compression.
Minifying https://js.fout.jp/beacon.html?from=dmp could save 475B (15% reduction) after compression.
Minifying https://js.fout.jp/beacon.html?from=dmp could save 475B (15% reduction) after compression.
priority - 0 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 3.4KiB (19% reduction).
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Minifying https://www.bookoffonline.co.jp/mbfiles/css/layout-top.css could save 581B (13% reduction) after compression.
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bookoffonline.co.jp Mobile Resources
| Total Resources | 240 |
| Number of Hosts | 76 |
| Static Resources | 122 |
| JavaScript Resources | 67 |
| CSS Resources | 7 |
bookoffonline.co.jp Mobile Resource Breakdown
bookoffonline.co.jp mobile page usability
Last tested: 2019-12-02
Mobile Usability
Good
99/100
bookoffonline.co.jp Mobile Usability Test Quick Summary
priority - 0 Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<a href="https://www.bo…EB5DCDCD4013.c" class="logo">ブックオフオンライン 中古/…をまとめて購入＆まとめて買取</a> is close to 2 other tap targets.The tap target
<a href="https://www.bo…EB5DCDCD4013.c" class="link-selltop">ブックオフ唯一の宅配買取サービス「宅本便」</a> is close to 2 other tap targets.The tap target
<li class="category"></li> is close to 1 other tap targets.The tap target
<a href="#"></a> is close to 1 other tap targets.The tap target
<a href="https://sp.boo…EB5DCDCD4013.c"></a> and 2 others are close to other tap targets.The tap target
<a href="https://www.bo…nt=topfloat_sp"></a> is close to 1 other tap targets.bookoffonline.co.jp similar domains
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bookoffonline.co.jp Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
bookoffonline.co.jp TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.