Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 39% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

w0w.co.jp

Top | WOW

Page Load Speed

11.4 sec in total

First Response

529 ms

Resources Loaded

9.7 sec

Page Rendered

1.1 sec

w0w.co.jp screenshot

About Website

Click here to check amazing W 0 content for Japan. Otherwise, check out these important facts you probably never knew about w0w.co.jp

WOW is a visual design studio based in Tokyo, Sendai and London. We are involved in a wide field of design from advertising and commercial works to installation works for exhibition spaces, and also i...

Visit w0w.co.jp

Key Findings

We analyzed W0w.co.jp page load time and found that the first response time was 529 ms and then it took 10.8 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

w0w.co.jp performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value18.1 s

0/100

25%

SI (Speed Index)

Value9.7 s

10/100

10%

TBT (Total Blocking Time)

Value290 ms

80/100

30%

CLS (Cumulative Layout Shift)

Value0.058

98/100

15%

TTI (Time to Interactive)

Value11.9 s

17/100

10%

Network Requests Diagram

w0w.co.jp

529 ms

www.w0w.co.jp

523 ms

index.html

496 ms

jquery.min.js

10 ms

jquery-ui-1.9.2.custom.min.js

829 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 53% of them (38 requests) were addressed to the original W0w.co.jp, 42% (30 requests) were made to Material.cdnw0w.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (6.6 sec) relates to the external source Material.cdnw0w.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.2 MB (11%)

Content Size

10.5 MB

After Optimization

9.3 MB

In fact, the total size of W0w.co.jp main page is 10.5 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. 45% of websites need less resources to load. Images take 10.3 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 24.6 kB

  • Original 32.0 kB
  • After minification 31.9 kB
  • After compression 7.4 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 24.6 kB or 77% of the original size.

Image Optimization

-10%

Potential reduce by 1.1 MB

  • Original 10.3 MB
  • After minification 9.2 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. W 0 images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 92.7 kB

  • Original 174.9 kB
  • After minification 151.9 kB
  • After compression 82.1 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 92.7 kB or 53% of the original size.

CSS Optimization

-83%

Potential reduce by 16.2 kB

  • Original 19.5 kB
  • After minification 13.8 kB
  • After compression 3.3 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. W0w.co.jp needs all CSS files to be minified and compressed as it can save up to 16.2 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (22%)

Requests Now

65

After Optimization

51

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of W 0. 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 as a result speed up the page load time.

Accessibility Review

w0w.co.jp accessibility score

73

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

w0w.co.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

w0w.co.jp SEO score

92

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise W0w.co.jp can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that W0w.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

Open Graph description is not detected on the main page of W 0. 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: