9.4 sec in total
617 ms
8.4 sec
354 ms
Welcome to i-bookcenter.com homepage info - get ready to check I Bookcenter best content for Japan right away, or after learning these important things about i-bookcenter.com
いい本買取おすすめの注目情報を調べている方には、勿論当サイトが利用価値大です!利用者の立場に立って、ホットな情報を丁寧にご紹介していますから、あなたが探していたいい本買取おすすめの情報を楽に確保できるでしょう。
Visit i-bookcenter.comWe analyzed I-bookcenter.com page load time and found that the first response time was 617 ms and then it took 8.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.
i-bookcenter.com performance score
name
value
score
weighting
Value3.0 s
48/100
10%
Value3.0 s
77/100
25%
Value20.3 s
0/100
10%
Value120 ms
97/100
30%
Value0.078
95/100
15%
Value5.4 s
72/100
10%
617 ms
914 ms
608 ms
782 ms
1558 ms
Our browser made a total of 148 requests to load all elements on the main page. We found that 2% of them (3 requests) were addressed to the original I-bookcenter.com, 59% (87 requests) were made to Ibc.munus.jp and 14% (21 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Ibc.munus.jp.
Page size can be reduced by 80.4 kB (8%)
946.9 kB
866.5 kB
In fact, the total size of I-bookcenter.com main page is 946.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Images take 825.5 kB which makes up the majority of the site volume.
Potential reduce by 35.7 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 35.7 kB or 75% of the original size.
Potential reduce by 1.8 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. I Bookcenter images are well optimized though.
Potential reduce by 40.7 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 40.7 kB or 58% of the original size.
Potential reduce by 2.2 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. I-bookcenter.com needs all CSS files to be minified and compressed as it can save up to 2.2 kB or 71% of the original size.
Number of requests can be reduced by 57 (39%)
145
88
The browser has sent 145 CSS, Javascripts, AJAX and image requests in order to completely render the main page of I Bookcenter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.
i-bookcenter.com
617 ms
www.i-bookcenter.com
914 ms
base.css
608 ms
top.css
782 ms
index_hover.css
1558 ms
ac.php
1578 ms
sns2.js
2191 ms
analytics.js
91 ms
button-only@2x.png
715 ms
bm_bg.png
183 ms
h1_txt.png
192 ms
menu_1.png
182 ms
menu_2.png
184 ms
menu_3.png
485 ms
menu_4.png
484 ms
menu_5.png
482 ms
billboard-index-low.jpg
912 ms
fukken.svg
573 ms
billboard-index.jpg
1388 ms
top_01.png
703 ms
bm_section.jpg
911 ms
more_bm.png
764 ms
top_05.png
910 ms
viewer_num_bg.png
956 ms
viewer-31.jpg
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viewer-30.jpg
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viewer-29.jpg
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top_07.png
1080 ms
top_08_1.png
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top_08_2.png
1166 ms
book-044.png
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book-040.jpg
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book-035s.png
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book-032.jpg
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book-030.jpg
2015 ms
book-029.png
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likebox.php
245 ms
kyo.woff
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collect
32 ms
book-027.png
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UThj8VI7Xhd.css
34 ms
FL1kvZ1wVUz.css
42 ms
7HwxA8gVs6-.css
44 ms
cuTBFFsHWNo.css
44 ms
q68gy-v_YMF.js
37 ms
FJmpeSpHpjS.js
43 ms
0wM5s1Khldu.js
43 ms
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njO1TPvGzoR.js
71 ms
1QuX41zDRrx.js
74 ms
Oagsvfb4VWi.js
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wL6VQj7Ab77.png
13 ms
s7jcwEQH7Sx.png
15 ms
QDwYpIaRyfG.png
13 ms
K00K-UgnsKu.png
13 ms
book-021s.png
1811 ms
book-018.png
2063 ms
book-016.jpg
2114 ms
book-015s.png
1866 ms
I6-MnjEovm5.js
4 ms
pQrUxxo5oQp.js
6 ms
book-013.jpg
2009 ms
book-012.jpg
1924 ms
book-011.jpg
1951 ms
book-010.png
1705 ms
book-009.jpg
2224 ms
book-006s.png
2033 ms
book-005.jpg
2006 ms
book-004.jpg
2076 ms
book-003.png
2201 ms
book-002.jpg
2132 ms
sale_list.png
1951 ms
top_08_3.png
1914 ms
spacer.gif
1973 ms
top10_1.png
2075 ms
top10_2.png
1856 ms
top10_3.png
1785 ms
top10_4.png
1847 ms
bookfair_banner.png
2078 ms
nav-01.png
1902 ms
nav-03.png
2047 ms
nav-04.png
2067 ms
nav-degi.png
1828 ms
top10_5.png
1730 ms
nav-02.png
1757 ms
sitemap_btn.png
1796 ms
move_top.png
1792 ms
rss.png
1721 ms
menu_1_on.png
1683 ms
menu_2_on.png
1606 ms
menu_3_on.png
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menu_4_on.png
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menu_5_on.png
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menu_6_on.png
1624 ms
move_top_on.png
1569 ms
gmap_icon_on.png
1504 ms
billboard-bm.jpg
2503 ms
treeview-default-line.png
1511 ms
top.png
1471 ms
treeview-default.png
1473 ms
sdk.js
8 ms
widgets.js
29 ms
platform.js
95 ms
bookmark_button.js
348 ms
btn.js
45 ms
54 ms
xd_arbiter.php
17 ms
xd_arbiter.php
47 ms
button
10 ms
button.css
56 ms
shared.js
58 ms
button.js
61 ms
like.php
71 ms
cb=gapi.loaded_0
17 ms
cb=gapi.loaded_1
33 ms
sharebutton
176 ms
pocket_button.png
9 ms
postmessageRelay
45 ms
wy1X4hBW7e7.js
20 ms
LVx-xkvaJ0b.png
8 ms
3193398744-postmessagerelay.js
17 ms
rpc:shindig_random.js
39 ms
cb=gapi.loaded_0
4 ms
gplus-dd4b38-14.png
8 ms
rs=AGLTcCPeW_yxohM6d2vzOu9_v18SNdO9Aw
6 ms
rs=AGLTcCMphdG3zbrn6XRIiiB6ruEULXDZtA
27 ms
i-bookcenter.com accessibility score
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
<frame> or <iframe> elements do not have a title
Image elements do not have [alt] attributes
Form elements do not have associated labels
Links do not have a discernible name
<object> elements do not have alternate text
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
Definition list items are not wrapped in <dl> elements
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
List items (<li>) are not contained within <ul> or <ol> parent elements.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
[id] attributes on active, focusable elements are not unique
Internationalization and localization
These are opportunities to improve the interpretation of your content by users in different locales.
Impact
Issue
<html> element does not have a [lang] attribute
i-bookcenter.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Page has valid source maps
i-bookcenter.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
JA
JA
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise I-bookcenter.com can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it matches the claimed language. Our system also found out that I-bookcenter.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
i-bookcenter.com
Open Graph data is detected on the main page of I Bookcenter. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: