Tools & Wizards About Us
bookmania.jp screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

bookmania.jp

古本買取のブックマニア【送料無料・全国対応の本宅配買取サービス】

Page Load Speed

4.8 sec in total

First Response

497 ms

Resources Loaded

4.2 sec

Page Rendered

112 ms

bookmania.jp screenshot

About Website

Visit bookmania.jp now to see the best up-to-date Bookmania content for Japan and also check out these interesting facts you probably never knew about bookmania.jp

古本買取のブックマニアは全国送料無料で本・DVD・CD・ゲームをどこよりも高価買取いたします！買取保証、スピード、無料ダンボールプレゼントを始め、特典多数あり。古本をまとめて売るならブックマニア！

Visit bookmania.jp

Key Findings

We analyzed Bookmania.jp page load time and found that the first response time was 497 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

bookmania.jp performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value950 ms

29/100

30%

CLS (Cumulative Layout Shift)

Value0.296

40/100

15%

TTI (Time to Interactive)

Value12.1 s

16/100

10%

Network Requests Diagram

bookmania.jp

497 ms

www.bookmania.jp

909 ms

reset.css

168 ms

main.css

334 ms

jquery-ui.css

459 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 97% of them (84 requests) were addressed to the original Bookmania.jp, 1% (1 request) were made to Ajax.googleapis.com and 1% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Bookmania.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 49.8 kB (7%)

Content Size

674.5 kB

After Optimization

624.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bookmania.jp main page is 674.5 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. 35% of websites need less resources to load. Images take 572.5 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 31.5 kB

  • Original 39.5 kB
  • After minification 29.0 kB
  • After compression 8.0 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. This page needs HTML code to be minified as it can gain 10.5 kB, which is 27% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 31.5 kB or 80% of the original size.

Image Optimization

-1%

Potential reduce by 7.3 kB

  • Original 572.5 kB
  • After minification 565.1 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. Bookmania images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 33.3 kB
  • After minification 33.3 kB
  • After compression 33.3 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. This website has mostly compressed JavaScripts.

CSS Optimization

-38%

Potential reduce by 11.0 kB

  • Original 29.3 kB
  • After minification 29.3 kB
  • After compression 18.3 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. Bookmania.jp needs all CSS files to be minified and compressed as it can save up to 11.0 kB or 38% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (25%)

Requests Now

85

After Optimization

64

  • Images
  • JavaScript
  • CSS

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bookmania. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bookmania.jp

bookmania.jp

497 ms

www.bookmania.jp

www.bookmania.jp

909 ms

reset.css

reset.css

168 ms

main.css

main.css

334 ms

jquery-ui.css

jquery-ui.css

459 ms

geeks.css

geeks.css

468 ms

skitter.styles.css

skitter.styles.css

496 ms

jquery.min.js

jquery.min.js

17 ms

jquery-ui-1.9.1.custom.min.js

jquery-ui-1.9.1.custom.min.js

517 ms

jquery.module.js

jquery.module.js

518 ms

geeks.js

geeks.js

518 ms

config.js

config.js

610 ms

jquery.easing.1.3.js

jquery.easing.1.3.js

621 ms

slider.js

slider.js

659 ms

logo.jpg

logo.jpg

168 ms

footer_form.png

footer_form.png

169 ms

footer_web_quote.png

footer_web_quote.png

168 ms

footer_web_inquiry.png

footer_web_inquiry.png

258 ms

kv_free.png

kv_free.png

583 ms

kv_other.jpg

kv_other.jpg

815 ms

kv_selfcheck.jpg

kv_selfcheck.jpg

667 ms

kv_nav_free.jpg

kv_nav_free.jpg

334 ms

kv_nav_other.jpg

kv_nav_other.jpg

335 ms

kv_nav_selfcheck.jpg

kv_nav_selfcheck.jpg

410 ms

point_01.png

point_01.png

502 ms

point_1_foot.jpg

point_1_foot.jpg

502 ms

point_02.gif

point_02.gif

563 ms

point_2_foot.gif

point_2_foot.gif

669 ms

point_03.gif

point_03.gif

669 ms

point_3_foot.gif

point_3_foot.gif

715 ms

point_04.gif

point_04.gif

737 ms

point_4_foot.jpg

point_4_foot.jpg

833 ms

point_05.gif

point_05.gif

835 ms

point_5_foot.jpg

point_5_foot.jpg

836 ms

point_06.gif

point_06.gif

868 ms

point_6_foot.gif

point_6_foot.gif

893 ms

point_07.gif

point_07.gif

978 ms

point_7_foot.png

point_7_foot.png

999 ms

point_08.gif

point_08.gif

1002 ms

point_8_foot.jpg

point_8_foot.jpg

1002 ms

point_09.gif

point_09.gif

1020 ms

point_9_foot.jpg

point_9_foot.jpg

1047 ms

detail_link.gif

detail_link.gif

1142 ms

gtm.js

gtm.js

125 ms

btn_dan.jpg

btn_dan.jpg

1157 ms

books.png

books.png

1158 ms

offer_btn.jpg

offer_btn.jpg

1160 ms

boxkit_banner.jpg

boxkit_banner.jpg

1095 ms

building.jpg

building.jpg

1100 ms

staff_banner.jpg

staff_banner.jpg

1195 ms

tag.js

tag.js

207 ms

senmonsho.jpg

senmonsho.jpg

1169 ms

school-book.jpg

school-book.jpg

1171 ms

kyouzai.jpg

kyouzai.jpg

1171 ms

deagostini.jpg

deagostini.jpg

1160 ms

computer.jpg

computer.jpg

1103 ms

medical.jpg

medical.jpg

1142 ms

politics.jpg

politics.jpg

1147 ms

science.jpg

science.jpg

1090 ms

business.jpg

business.jpg

1003 ms

comic.jpg

comic.jpg

1004 ms

dvd.jpg

dvd.jpg

953 ms

game.jpg

game.jpg

1059 ms

foreign.jpg

foreign.jpg

968 ms

page_top.gif

page_top.gif

999 ms

top_slice.jpg

top_slice.jpg

1001 ms

navi-bknew2.gif

navi-bknew2.gif

957 ms

buttons2.png

buttons2.png

935 ms

h2_back.png

h2_back.png

973 ms

easy_flow_back_top.png

easy_flow_back_top.png

1136 ms

easy_flow_back_middle.png

easy_flow_back_middle.png

999 ms

easy_flow_back_bottom.png

easy_flow_back_bottom.png

1001 ms

green_circle.png

green_circle.png

959 ms

header_info.png

header_info.png

947 ms

info_allow.gif

info_allow.gif

961 ms

header_customer.png

header_customer.png

983 ms

voice_female.gif

voice_female.gif

998 ms

rate_star.png

rate_star.png

1001 ms

voice_men.gif

voice_men.gif

986 ms

header_goods.png

header_goods.png

1045 ms

cate-bk.gif

cate-bk.gif

990 ms

allow_right_org.gif

allow_right_org.gif

971 ms

yaji_right_gray.gif

yaji_right_gray.gif

998 ms

allow_right_gry.gif

allow_right_gry.gif

1001 ms

footer_back.png

footer_back.png

1001 ms

allow_footer_nav.gif

allow_footer_nav.gif

1043 ms

kv_active.gif

kv_active.gif

990 ms

Accessibility Review

bookmania.jp accessibility score

77

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

bookmania.jp best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

bookmania.jp SEO score

93

Search Engine Optimization Advices

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Bookmania.jp 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 Bookmania.jp 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.

Social Sharing Optimization

bookmania.jp

Open Graph description is not detected on the main page of Bookmania. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: