Tools & Wizards About Us
usen.biz screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

usen.biz

USEN Home TOP | 有線放送 家庭用 | USEN音楽放送

Page Load Speed

9.9 sec in total

First Response

703 ms

Resources Loaded

8.3 sec

Page Rendered

958 ms

usen.biz screenshot

About Website

Click here to check amazing USEN content for Japan. Otherwise, check out these important facts you probably never knew about usen.biz

有線放送をご自宅で！USEN Homeは24時間いつでも楽しめる音楽放送サービスです。ヒットランキングや最新曲、USEN独自のトーク番組など幅広いラインナップでお届けします。

Visit usen.biz

Key Findings

We analyzed Usen.biz page load time and found that the first response time was 703 ms and then it took 9.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

usen.biz performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value13.7 s

0/100

25%

SI (Speed Index)

Value9.5 s

11/100

10%

TBT (Total Blocking Time)

Value920 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.046

99/100

15%

TTI (Time to Interactive)

Value13.2 s

12/100

10%

Network Requests Diagram

usen.biz

703 ms

www.usen.biz

1136 ms

2689 ms

style.css

522 ms

common.css

699 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Usen.biz, 94% (58 requests) were made to Usen.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (2.8 sec) relates to the external source Usen.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 292.3 kB (6%)

Content Size

5.0 MB

After Optimization

4.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Usen.biz main page is 5.0 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. 25% of websites need less resources to load. Images take 4.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 22.9 kB

  • Original 28.8 kB
  • After minification 25.2 kB
  • After compression 5.9 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 3.6 kB, which is 13% 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 22.9 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 107.9 kB

  • Original 4.8 MB
  • After minification 4.7 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. USEN images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 96.9 kB

  • Original 139.9 kB
  • After minification 135.1 kB
  • After compression 42.9 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 96.9 kB or 69% of the original size.

CSS Optimization

-85%

Potential reduce by 64.6 kB

  • Original 75.8 kB
  • After minification 57.2 kB
  • After compression 11.2 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. Usen.biz needs all CSS files to be minified and compressed as it can save up to 64.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (24%)

Requests Now

59

After Optimization

45

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of USEN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

usen.biz

usen.biz

703 ms

www.usen.biz

www.usen.biz

1136 ms

2689 ms

style.css

style.css

522 ms

common.css

common.css

699 ms

index.css

index.css

735 ms

css

css

31 ms

jquery-3.2.1.min.js

jquery-3.2.1.min.js

1092 ms

slick.min.js

slick.min.js

929 ms

common.js

common.js

759 ms

add.js

add.js

758 ms

gtm.js

gtm.js

252 ms

logo-header.png

logo-header.png

352 ms

tel-header-pc.png

tel-header-pc.png

348 ms

menu.png

menu.png

352 ms

icon-service.png

icon-service.png

347 ms

icon-channel.png

icon-channel.png

576 ms

icon-withsoundlife.png

icon-withsoundlife.png

573 ms

icon-voice-hover.png

icon-voice-hover.png

574 ms

icon-topics-hover.png

icon-topics-hover.png

576 ms

icon-price.png

icon-price.png

576 ms

icon-campaign.png

icon-campaign.png

684 ms

icon-join.png

icon-join.png

688 ms

icon-faq.png

icon-faq.png

694 ms

icon-recommend.png

icon-recommend.png

699 ms

mv-sp_01.jpg

mv-sp_01.jpg

1401 ms

mv-pc_01.jpg

mv-pc_01.jpg

1053 ms

mv-sp_04.jpg

mv-sp_04.jpg

1913 ms

mv-pc_04.jpg

mv-pc_04.jpg

1362 ms

mv-sp_cp.jpg

mv-sp_cp.jpg

1219 ms

mv-pc_cp.jpg

mv-pc_cp.jpg

1228 ms

banner-sp.png

banner-sp.png

1407 ms

banner-pc.png

banner-pc.png

1565 ms

top-info-bg.png

top-info-bg.png

1406 ms

top-info_01.png

top-info_01.png

1535 ms

top-info_02.png

top-info_02.png

1578 ms

top-info_03.png

top-info_03.png

1585 ms

features-img01.png

features-img01.png

2112 ms

features-img02.png

features-img02.png

1875 ms

features-img03.png

features-img03.png

2080 ms

joining-img01.png

joining-img01.png

1930 ms

joining-img02.png

joining-img02.png

1937 ms

qanda-img01.png

qanda-img01.png

2221 ms

qa-icon.png

qa-icon.png

1925 ms

enjoy-img01.png

enjoy-img01.png

2118 ms

enjoy-img02.png

enjoy-img02.png

2124 ms

img_topics57.png

img_topics57.png

2091 ms

img_topics56.png

img_topics56.png

2100 ms

img_topics55.png

img_topics55.png

2122 ms

img_topics54.png

img_topics54.png

2221 ms

contact-bg.jpg

contact-bg.jpg

2814 ms

news.tsv

news.tsv

1934 ms

topics.tsv

topics.tsv

2033 ms

app-point.svg

app-point.svg

2090 ms

contact-telimg01.png

contact-telimg01.png

2105 ms

contact-telno.svg

contact-telno.svg

2178 ms

icon-arrow.png

icon-arrow.png

2245 ms

footer-banner-apply.png

footer-banner-apply.png

2096 ms

footer-banner-req.png

footer-banner-req.png

2250 ms

fixed-banner-apply.png

fixed-banner-apply.png

2166 ms

fixed-banner-req.png

fixed-banner-req.png

2342 ms

logo-footer.png

logo-footer.png

1901 ms

Accessibility Review

usen.biz accessibility score

96

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.

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

usen.biz 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

usen.biz SEO score

90

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

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

High

Tap targets are not sized appropriately

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 Usen.biz 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 Usen.biz 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

usen.biz

Open Graph data is detected on the main page of USEN. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: