Tools & Wizards About Us
usen.biz screenshot

Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% 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

11.5 sec in total

First Response

779 ms

Resources Loaded

9.2 sec

Page Rendered

1.5 sec

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 779 ms and then it took 10.7 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

usen.biz performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value15.4 s

0/100

25%

SI (Speed Index)

Value13.2 s

2/100

10%

TBT (Total Blocking Time)

Value1,610 ms

12/100

30%

CLS (Cumulative Layout Shift)

Value0.634

9/100

15%

TTI (Time to Interactive)

Value16.2 s

5/100

10%

Network Requests Diagram

usen.biz

779 ms

www.usen.biz

891 ms

1077 ms

style.css

518 ms

common.css

704 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Usen.biz, 62% (61 requests) were made to Usen.com and 6% (6 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (4 sec) relates to the external source Usen.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 297.8 kB (5%)

Content Size

5.7 MB

After Optimization

5.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Usen.biz main page is 5.7 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 5.4 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 33.6 kB

  • Original 42.1 kB
  • After minification 37.9 kB
  • After compression 8.4 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 33.6 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 99.6 kB

  • Original 5.4 MB
  • After minification 5.3 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

-50%

Potential reduce by 100.1 kB

  • Original 199.6 kB
  • After minification 194.8 kB
  • After compression 99.5 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 100.1 kB or 50% 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 44 (47%)

Requests Now

94

After Optimization

50

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 94 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 28 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

779 ms

www.usen.biz

www.usen.biz

891 ms

1077 ms

style.css

style.css

518 ms

common.css

common.css

704 ms

index.css

index.css

737 ms

css

css

36 ms

jquery-3.2.1.min.js

jquery-3.2.1.min.js

1180 ms

slick.min.js

slick.min.js

999 ms

common.js

common.js

732 ms

add.js

add.js

738 ms

gtm.js

gtm.js

161 ms

logo-header.png

logo-header.png

193 ms

tel-header-pc.png

tel-header-pc.png

329 ms

menu.png

menu.png

332 ms

icon-service.png

icon-service.png

333 ms

icon-channel.png

icon-channel.png

364 ms

icon-withsoundlife.png

icon-withsoundlife.png

487 ms

icon-voice-hover.png

icon-voice-hover.png

498 ms

icon-topics-hover.png

icon-topics-hover.png

504 ms

icon-price.png

icon-price.png

541 ms

icon-campaign.png

icon-campaign.png

658 ms

icon-join.png

icon-join.png

665 ms

icon-faq.png

icon-faq.png

696 ms

icon-recommend.png

icon-recommend.png

694 ms

mv-sp_01.jpg

mv-sp_01.jpg

1751 ms

mv-pc_01.jpg

mv-pc_01.jpg

1704 ms

mv-sp_55.jpg

mv-sp_55.jpg

1203 ms

mv-pc_55.jpg

mv-pc_55.jpg

1375 ms

mv-sp_04.jpg

mv-sp_04.jpg

1846 ms

mv-pc_04.jpg

mv-pc_04.jpg

1421 ms

mv-sp_cp.jpg

mv-sp_cp.jpg

1741 ms

mv-pc_cp.jpg

mv-pc_cp.jpg

2462 ms

banner-sp.png

banner-sp.png

1827 ms

banner-pc.png

banner-pc.png

2063 ms

top-info-bg.png

top-info-bg.png

1928 ms

top-info_01.png

top-info_01.png

1925 ms

top-info_02.png

top-info_02.png

2008 ms

top-info_03.png

top-info_03.png

2034 ms

features-img01.png

features-img01.png

2802 ms

features-img02.png

features-img02.png

2699 ms

features-img03.png

features-img03.png

2760 ms

joining-img01.png

joining-img01.png

2720 ms

joining-img02.png

joining-img02.png

2526 ms

qanda-img01.png

qanda-img01.png

2858 ms

qa-icon.png

qa-icon.png

2693 ms

js

js

31 ms

analytics.js

analytics.js

116 ms

j.php

j.php

141 ms

enjoy-img01.png

enjoy-img01.png

3715 ms

collect

collect

34 ms

enjoy-img02.png

enjoy-img02.png

2749 ms

img_topics55.png

img_topics55.png

2948 ms

v.gif

v.gif

7 ms

img_topics54.png

img_topics54.png

2870 ms

collect

collect

30 ms

img_topics53.png

img_topics53.png

2836 ms

ga-audiences

ga-audiences

32 ms

img_topics52.png

img_topics52.png

2956 ms

contact-bg.jpg

contact-bg.jpg

3993 ms

app-point.svg

app-point.svg

2878 ms

contact-telimg01.png

contact-telimg01.png

3229 ms

contact-telno.svg

contact-telno.svg

2914 ms

tag.js

tag.js

22 ms

news.tsv

news.tsv

2883 ms

topics.tsv

topics.tsv

2905 ms

icon-arrow.png

icon-arrow.png

2964 ms

tag

tag

605 ms

footer-banner-tel.png

footer-banner-tel.png

3021 ms

footer-banner-apply.png

footer-banner-apply.png

3042 ms

footer-banner-req.png

footer-banner-req.png

2613 ms

ytag.js

ytag.js

869 ms

fixed-banner-apply.png

fixed-banner-apply.png

2523 ms

fixed-banner-req.png

fixed-banner-req.png

2484 ms

logo-footer.png

logo-footer.png

2210 ms

pd.js

pd.js

69 ms

conversion_async.js

conversion_async.js

120 ms

bi.js

bi.js

914 ms

conversion_async.js

conversion_async.js

1377 ms

cmt.js

cmt.js

281 ms

cmt.js

cmt.js

575 ms

fbevents.js

fbevents.js

45 ms

js

js

89 ms

js

js

155 ms

js

js

156 ms

analytics

analytics

236 ms

883852335522710

883852335522710

182 ms

142 ms

150 ms

148 ms

71 ms

67 ms

52 ms

analytics

analytics

190 ms

20 ms

23 ms

24 ms

38 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: