Tools & Wizards About Us

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

wiley.co.jp

Wiley Publishing Japan::ワイリー・パブリッシング・ジャパン

Page Load Speed

4.7 sec in total

First Response

624 ms

Resources Loaded

3.7 sec

Page Rendered

372 ms

About Website

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

出版社ワイリーの日本語ホームページ。出版社ワイリーは、1807年の創業以来、200年以上にわたり、様々な分野で情報・知識を求める皆さまのニーズに応えることを目指してきました。

Visit wiley.co.jp

Key Findings

We analyzed Wiley.co.jp page load time and found that the first response time was 624 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

wiley.co.jp performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

wiley.co.jp

624 ms

wiley.co.jp

1005 ms

osano.js

253 ms

index.css

328 ms

base.css

167 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 98% of them (47 requests) were addressed to the original Wiley.co.jp, 2% (1 request) were made to Cmp.osano.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain Wiley.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 65.0 kB (59%)

Content Size

109.6 kB

After Optimization

44.5 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Wiley.co.jp main page is 109.6 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. 20% of websites need less resources to load. CSS take 53.6 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 21.2 kB

  • Original 30.4 kB
  • After minification 28.3 kB
  • After compression 9.2 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 21.2 kB or 70% of the original size.

Image Optimization

-2%

Potential reduce by 393 B

  • Original 25.6 kB
  • After minification 25.3 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. Wiley images are well optimized though.

CSS Optimization

-81%

Potential reduce by 43.4 kB

  • Original 53.6 kB
  • After minification 45.4 kB
  • After compression 10.1 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. Wiley.co.jp needs all CSS files to be minified and compressed as it can save up to 43.4 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (50%)

Requests Now

46

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Wiley. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

wiley.co.jp accessibility score

100

Accessibility Issues

Best Practices

wiley.co.jp best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

wiley.co.jp SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Wiley.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 Wiley.co.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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