Report Summary

  • 54

    Performance

    Renders faster than
    72% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

justycom.jp

IELTSアイエルツ 対策 | IELTSアイエルツ対策・英語研修・BULATS | 真の国際人を育てる株式会社Justy(ジャスティー)

Page Load Speed

8.4 sec in total

First Response

2.2 sec

Resources Loaded

5.5 sec

Page Rendered

789 ms

justycom.jp screenshot

About Website

Click here to check amazing Justycom content. Otherwise, check out these important facts you probably never knew about justycom.jp

IELTSアイエルツ対策・英語研修・BULATS。株式会社Justy(ジャスティー)は、国際的に活躍できる真の英語力をもった人材を育成する為の英語教室事業や、様々なビジネスのシーンに活用できる英語研修事業、国際経験豊富な人材を取りそろえた人材事業を行っております。IELTSアイエルツ対策の事なら株式会社Justy(ジャスティー)

Visit justycom.jp

Key Findings

We analyzed Justycom.jp page load time and found that the first response time was 2.2 sec and then it took 6.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

justycom.jp performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.3 s

74/100

10%

LCP (Largest Contentful Paint)

Value14.0 s

0/100

25%

SI (Speed Index)

Value5.8 s

49/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value7.7 s

45/100

10%

Network Requests Diagram

justycom.jp

2173 ms

style.css

642 ms

jquery.js

1136 ms

jquery.page-scroller.js

604 ms

smartRollover.js

419 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that 73% of them (35 requests) were addressed to the original Justycom.jp, 6% (3 requests) were made to Platform.twitter.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.6 sec) belongs to the original domain Justycom.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 164.0 kB (25%)

Content Size

668.4 kB

After Optimization

504.5 kB

In fact, the total size of Justycom.jp main page is 668.4 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. 40% of websites need less resources to load. Images take 477.7 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 17.0 kB

  • Original 24.3 kB
  • After minification 23.7 kB
  • After compression 7.2 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 17.0 kB or 70% of the original size.

Image Optimization

-8%

Potential reduce by 37.8 kB

  • Original 477.7 kB
  • After minification 439.9 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. Justycom images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 94.6 kB

  • Original 149.3 kB
  • After minification 147.4 kB
  • After compression 54.8 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 94.6 kB or 63% of the original size.

CSS Optimization

-85%

Potential reduce by 14.6 kB

  • Original 17.1 kB
  • After minification 11.5 kB
  • After compression 2.5 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. Justycom.jp needs all CSS files to be minified and compressed as it can save up to 14.6 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (30%)

Requests Now

44

After Optimization

31

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Justycom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

justycom.jp accessibility score

91

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

<frame> or <iframe> elements do not have a title

Best Practices

justycom.jp best practices score

58

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

High

Browser errors were logged to the console

SEO Factors

justycom.jp SEO score

75

Search Engine Optimization Advices

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 Justycom.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 Justycom.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 Justycom. 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: