Tools & Wizards About Us
arib.or.jp screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

arib.or.jp

一般社団法人　電波産業会

Page Load Speed

5.1 sec in total

First Response

928 ms

Resources Loaded

4 sec

Page Rendered

119 ms

arib.or.jp screenshot

About Website

Visit arib.or.jp now to see the best up-to-date Arib content for Japan and also check out these interesting facts you probably never knew about arib.or.jp

一般社団法人　電波産業会

Visit arib.or.jp

Key Findings

We analyzed Arib.or.jp page load time and found that the first response time was 928 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

arib.or.jp performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

22/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value260 ms

83/100

30%

CLS (Cumulative Layout Shift)

Value1.089

1/100

15%

TTI (Time to Interactive)

Value5.4 s

72/100

10%

Network Requests Diagram

arib.or.jp

928 ms

jquery.js

885 ms

jquery.iframe-auto-height.js

359 ms

ga.js

42 ms

arib_news_j.jpg

177 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 96% of them (79 requests) were addressed to the original Arib.or.jp, 4% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Arib.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 89.6 kB (50%)

Content Size

179.8 kB

After Optimization

90.2 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Arib.or.jp main page is 179.8 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. 15% of websites need less resources to load. Javascripts take 118.4 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 22.8 kB

  • Original 27.8 kB
  • After minification 25.9 kB
  • After compression 4.9 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. 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 22.8 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 443 B

  • Original 33.6 kB
  • After minification 33.2 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. Arib images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 66.3 kB

  • Original 118.4 kB
  • After minification 114.3 kB
  • After compression 52.1 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 66.3 kB or 56% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (52%)

Requests Now

81

After Optimization

39

  • AJAX
  • Images
  • JavaScript

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Arib. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

arib.or.jp

arib.or.jp

928 ms

jquery.js

jquery.js

885 ms

jquery.iframe-auto-height.js

jquery.iframe-auto-height.js

359 ms

ga.js

ga.js

42 ms

arib_news_j.jpg

arib_news_j.jpg

177 ms

arib_denpa2015.gif

arib_denpa2015.gif

178 ms

ceatec2015.gif

ceatec2015.gif

334 ms

top_04.gif

top_04.gif

338 ms

top_01.jpg

top_01.jpg

354 ms

top_02.jpg

top_02.jpg

532 ms

top_03_new.gif

top_03_new.gif

370 ms

top_bg_r.gif

top_bg_r.gif

364 ms

english1.gif

english1.gif

498 ms

sp.gif

sp.gif

504 ms

sitemap.gif

sitemap.gif

531 ms

line_g.gif

line_g.gif

539 ms

privacy.gif

privacy.gif

555 ms

copyright.gif

copyright.gif

664 ms

space.gif

space.gif

672 ms

kurashi.gif

kurashi.gif

707 ms

kanren02.gif

kanren02.gif

708 ms

m_01.gif

m_01.gif

713 ms

m_02.gif

m_02.gif

738 ms

m_03.gif

m_03.gif

829 ms

m_04.gif

m_04.gif

839 ms

m_05.gif

m_05.gif

881 ms

m_11.gif

m_11.gif

883 ms

line.gif

line.gif

886 ms

m_07.gif

m_07.gif

922 ms

m_08.gif

m_08.gif

993 ms

m_09.gif

m_09.gif

1008 ms

m_10.gif

m_10.gif

1057 ms

m_01_o.gif

m_01_o.gif

1059 ms

01_01.gif

01_01.gif

1070 ms

01_02.gif

01_02.gif

1107 ms

01_03.gif

01_03.gif

1157 ms

01_04.gif

01_04.gif

1174 ms

m_02_o.gif

m_02_o.gif

1233 ms

02_01.gif

02_01.gif

1227 ms

new.html

new.html

1239 ms

__utm.gif

__utm.gif

11 ms

readGeneralIndexTop.php

readGeneralIndexTop.php

1199 ms

02_02.gif

02_02.gif

1153 ms

02_03.gif

02_03.gif

1017 ms

02_04.gif

02_04.gif

1080 ms

02_05.gif

02_05.gif

1066 ms

02_06.gif

02_06.gif

1061 ms

02_07.gif

02_07.gif

1126 ms

teikan%20top.gif

teikan%20top.gif

1019 ms

02_09.gif

02_09.gif

1053 ms

02_10.gif

02_10.gif

1061 ms

02_11.gif

02_11.gif

1063 ms

m_03_o.gif

m_03_o.gif

1060 ms

03_01.gif

03_01.gif

1107 ms

03_03.gif

03_03.gif

1023 ms

03_02.gif

03_02.gif

1069 ms

03_04.gif

03_04.gif

1060 ms

m_04_o.gif

m_04_o.gif

1062 ms

04_01.gif

04_01.gif

1058 ms

04_02.gif

04_02.gif

1088 ms

04_03.gif

04_03.gif

1025 ms

04_04.gif

04_04.gif

1085 ms

04_05n.gif

04_05n.gif

1063 ms

m_05_o.gif

m_05_o.gif

1065 ms

m_11_o.gif

m_11_o.gif

1060 ms

06_01.gif

06_01.gif

1070 ms

06_02.gif

06_02.gif

1027 ms

m_07_o.gif

m_07_o.gif

1102 ms

07_01.gif

07_01.gif

1062 ms

07_02.gif

07_02.gif

1061 ms

m_08_o.gif

m_08_o.gif

1054 ms

08_01.gif

08_01.gif

1049 ms

m_09_o.gif

m_09_o.gif

1031 ms

09_01.gif

09_01.gif

1118 ms

09_02.gif

09_02.gif

1062 ms

09_03.gif

09_03.gif

1058 ms

pball.gif

pball.gif

685 ms

__utm.gif

__utm.gif

11 ms

m_10_o.gif

m_10_o.gif

1042 ms

10_01.gif

10_01.gif

998 ms

menu_bg.gif

menu_bg.gif

1014 ms

bg_list.gif

bg_list.gif

566 ms

Accessibility Review

arib.or.jp accessibility score

66

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

ARIA toggle fields do not have accessible names

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

Form elements do not have associated labels

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

arib.or.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

arib.or.jp SEO score

79

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

High

Tap targets are not sized appropriately

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 Arib.or.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 Arib.or.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

arib.or.jp

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