Report Summary

  • 26

    Performance

    Renders faster than
    45% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 83% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

jaro.or.jp

JARO 公益社団法人 日本広告審査機構

Page Load Speed

3.9 sec in total

First Response

1.1 sec

Resources Loaded

2.7 sec

Page Rendered

139 ms

jaro.or.jp screenshot

About Website

Click here to check amazing JARO content for Japan. Otherwise, check out these important facts you probably never knew about jaro.or.jp

消費者の広告・表示相談を受付け、審査・適正化に努める民間の広告自主規制機関。最新の相談・トピックスと企業・会員社向け情報の提供。

Visit jaro.or.jp

Key Findings

We analyzed Jaro.or.jp page load time and found that the first response time was 1.1 sec and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

jaro.or.jp performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

20/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value2,150 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.078

95/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

jaro.or.jp

1096 ms

hpbparts.css

648 ms

container_1A_2c_top.css

507 ms

main_1A_2c.css

1012 ms

user.css

356 ms

Our browser made a total of 45 requests to load all elements on the main page. We found that 73% of them (33 requests) were addressed to the original Jaro.or.jp, 20% (9 requests) were made to Google.com and 7% (3 requests) were made to Cse.google.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Jaro.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 206.1 kB (51%)

Content Size

404.4 kB

After Optimization

198.3 kB

In fact, the total size of Jaro.or.jp main page is 404.4 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. Javascripts take 169.3 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 32.5 kB

  • Original 41.2 kB
  • After minification 30.0 kB
  • After compression 8.7 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 11.2 kB, which is 27% 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 32.5 kB or 79% of the original size.

Image Optimization

-3%

Potential reduce by 2.5 kB

  • Original 89.0 kB
  • After minification 86.5 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. JARO images are well optimized though.

JavaScript Optimization

-47%

Potential reduce by 78.9 kB

  • Original 169.3 kB
  • After minification 159.4 kB
  • After compression 90.4 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 78.9 kB or 47% of the original size.

CSS Optimization

-88%

Potential reduce by 92.1 kB

  • Original 104.8 kB
  • After minification 72.8 kB
  • After compression 12.7 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. Jaro.or.jp needs all CSS files to be minified and compressed as it can save up to 92.1 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (55%)

Requests Now

42

After Optimization

19

The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JARO. 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 from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jaro.or.jp accessibility score

94

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

Links do not have a discernible name

Best Practices

jaro.or.jp best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jaro.or.jp SEO score

92

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

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 Jaro.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 Jaro.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

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