Tools & Wizards About Us
todabooks.co.jp screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

todabooks.co.jp

戸田書店「雑誌・コミック・専門書が豊富に揃うTODABOOKS」オンラインショップ

Page Load Speed

11.9 sec in total

First Response

772 ms

Resources Loaded

10.5 sec

Page Rendered

553 ms

todabooks.co.jp screenshot

About Website

Click here to check amazing Todabooks content for Japan. Otherwise, check out these important facts you probably never knew about todabooks.co.jp

戸田書店は雑誌、コミック、文芸、文庫、専門書の豊富な品揃えです。便利なオンラインショップもご利用ください

Visit todabooks.co.jp

Key Findings

We analyzed Todabooks.co.jp page load time and found that the first response time was 772 ms and then it took 11.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

todabooks.co.jp performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.3 s

61/100

10%

Network Requests Diagram

todabooks.co.jp

772 ms

default.css

362 ms

shared.css

370 ms

top.css

369 ms

rollover2.js

428 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 95% of them (75 requests) were addressed to the original Todabooks.co.jp, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (8 sec) belongs to the original domain Todabooks.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 130.1 kB (4%)

Content Size

3.1 MB

After Optimization

3.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Todabooks.co.jp main page is 3.1 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 30% of websites need less resources to load. Images take 3.0 MB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 16.2 kB

  • Original 22.0 kB
  • After minification 19.8 kB
  • After compression 5.8 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 16.2 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 70.5 kB

  • Original 3.0 MB
  • After minification 3.0 MB

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. Todabooks images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 26.0 kB

  • Original 52.2 kB
  • After minification 36.5 kB
  • After compression 26.2 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 26.0 kB or 50% of the original size.

CSS Optimization

-79%

Potential reduce by 17.4 kB

  • Original 22.0 kB
  • After minification 17.8 kB
  • After compression 4.6 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. Todabooks.co.jp needs all CSS files to be minified and compressed as it can save up to 17.4 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (24%)

Requests Now

76

After Optimization

58

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Todabooks. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

todabooks.co.jp

todabooks.co.jp

772 ms

default.css

default.css

362 ms

shared.css

shared.css

370 ms

top.css

top.css

369 ms

rollover2.js

rollover2.js

428 ms

smoothScroll.js

smoothScroll.js

422 ms

colorbox.css

colorbox.css

406 ms

jquery.colorbox-min.js

jquery.colorbox-min.js

521 ms

jquery.min.js

jquery.min.js

8 ms

jquery.simpleloopslider.js

jquery.simpleloopslider.js

541 ms

jquery.simpleloopslider.css

jquery.simpleloopslider.css

540 ms

jquery.cookie.js

jquery.cookie.js

1361 ms

jquery.textresizer.js

jquery.textresizer.js

1518 ms

topscreen.js

topscreen.js

616 ms

analytics.js

analytics.js

37 ms

top_line.jpg

top_line.jpg

830 ms

site_rogo.png

site_rogo.png

175 ms

shoplist.png

shoplist.png

168 ms

recruit.png

recruit.png

176 ms

head_icon.png

head_icon.png

194 ms

textsizer.png

textsizer.png

925 ms

small.png

small.png

333 ms

default.png

default.png

348 ms

big.png

big.png

349 ms

bg.jpg

bg.jpg

8032 ms

main01.png

main01.png

2163 ms

main02.png

main02.png

1557 ms

main03.png

main03.png

2004 ms

main04.png

main04.png

1756 ms

main05.png

main05.png

5792 ms

title04.png

title04.png

1731 ms

title03.png

title03.png

1905 ms

9784336051769.jpg

9784336051769.jpg

1944 ms

btn_osusume.png

btn_osusume.png

2077 ms

title05.png

title05.png

2130 ms

9784834082388.jpg

9784834082388.jpg

2176 ms

9784575239447.jpg

9784575239447.jpg

2250 ms

9784087716467.jpg

9784087716467.jpg

2317 ms

9784334910839.jpg

9784334910839.jpg

2326 ms

9784163904160.jpg

9784163904160.jpg

2349 ms

title06.png

title06.png

2423 ms

9784048658096.jpg

9784048658096.jpg

2502 ms

9784800005472.jpg

9784800005472.jpg

2493 ms

9784799103128.jpg

9784799103128.jpg

2522 ms

9784088806266.jpg

9784088806266.jpg

2596 ms

9784088806273.jpg

9784088806273.jpg

2659 ms

title01.png

title01.png

2686 ms

20160316182943.jpg

20160316182943.jpg

3216 ms

title02.png

title02.png

2768 ms

shop01.png

shop01.png

2823 ms

news.php

news.php

2859 ms

collect

collect

3 ms

collect

collect

67 ms

shop03.png

shop03.png

2784 ms

shop04.png

shop04.png

2824 ms

title07.png

title07.png

2893 ms

menu04_rollout.jpg

menu04_rollout.jpg

2934 ms

menu02_rollout.jpg

menu02_rollout.jpg

2835 ms

menu03_rollout.jpg

menu03_rollout.jpg

2908 ms

bana05.jpg

bana05.jpg

2951 ms

bana01.jpg

bana01.jpg

2509 ms

bana03.jpg

bana03.jpg

2474 ms

pgup.png

pgup.png

1886 ms

site_footer_rogo.png

site_footer_rogo.png

1745 ms

contents_bg.jpg

contents_bg.jpg

2902 ms

icon.gif

icon.gif

1681 ms

right_bg.jpg

right_bg.jpg

1871 ms

footer_icon.png

footer_icon.png

1647 ms

btn_bannar01_rollover.png

btn_bannar01_rollover.png

1681 ms

btn_bannar02_rollout.png

btn_bannar02_rollout.png

1692 ms

btn_bannar03_rollout.png

btn_bannar03_rollout.png

1772 ms

btn_bannar04_rollout.png

btn_bannar04_rollout.png

1824 ms

btn_bannar05_rollout.png

btn_bannar05_rollout.png

1744 ms

icon.png

icon.png

1224 ms

btn_bannar01_rollout.png

btn_bannar01_rollout.png

188 ms

btn_bannar02_rollover.png

btn_bannar02_rollover.png

175 ms

menu04_rollover.jpg

menu04_rollover.jpg

371 ms

menu02_rollover.jpg

menu02_rollover.jpg

347 ms

menu03_rollover.jpg

menu03_rollover.jpg

332 ms

Accessibility Review

todabooks.co.jp accessibility score

47

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

todabooks.co.jp best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

todabooks.co.jp SEO score

83

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

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

High

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

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 Todabooks.co.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 Todabooks.co.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

todabooks.co.jp

Open Graph description is not detected on the main page of Todabooks. 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: