Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

level5.co.jp

株式会社レベルファイブ

Page Load Speed

9.4 sec in total

First Response

600 ms

Resources Loaded

8.2 sec

Page Rendered

575 ms

level5.co.jp screenshot

About Website

Visit level5.co.jp now to see the best up-to-date Level 5 content for Japan and also check out these interesting facts you probably never knew about level5.co.jp

株式会社レベルファイブ企業サイト。製品情報、会社情報、採用情報のご紹介。

Visit level5.co.jp

Key Findings

We analyzed Level5.co.jp page load time and found that the first response time was 600 ms and then it took 8.8 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

level5.co.jp performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value12.1 s

0/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value200 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.638

9/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

level5.co.jp

600 ms

www.level5.co.jp

873 ms

common.css

1334 ms

layout.css

1378 ms

style.css

381 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 76% of them (68 requests) were addressed to the original Level5.co.jp, 4% (4 requests) were made to Spdmg-backend.i-mobile.co.jp and 3% (3 requests) were made to Spdmg.i-mobile.co.jp. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Level5.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 139.6 kB (4%)

Content Size

3.6 MB

After Optimization

3.4 MB

In fact, the total size of Level5.co.jp main page is 3.6 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. 40% of websites need less resources to load. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 11.1 kB

  • Original 15.2 kB
  • After minification 14.6 kB
  • After compression 4.1 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 11.1 kB or 73% of the original size.

Image Optimization

-1%

Potential reduce by 44.2 kB

  • Original 3.4 MB
  • After minification 3.4 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. Level 5 images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 74.9 kB

  • Original 142.9 kB
  • After minification 142.0 kB
  • After compression 68.0 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 74.9 kB or 52% of the original size.

CSS Optimization

-83%

Potential reduce by 9.3 kB

  • Original 11.3 kB
  • After minification 5.8 kB
  • After compression 2.0 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. Level5.co.jp needs all CSS files to be minified and compressed as it can save up to 9.3 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (14%)

Requests Now

85

After Optimization

73

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Level 5. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

level5.co.jp accessibility score

94

Accessibility Issues

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

level5.co.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

level5.co.jp SEO score

99

Search Engine Optimization Advices

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

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 Level5.co.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 Level5.co.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 Level 5. 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: