Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

vision-net.co.jp

ビジョンイズム | 株式会社ビジョン

Page Load Speed

7.1 sec in total

First Response

501 ms

Resources Loaded

6.2 sec

Page Rendered

367 ms

vision-net.co.jp screenshot

About Website

Visit vision-net.co.jp now to see the best up-to-date Vision Net content for Japan and also check out these interesting facts you probably never knew about vision-net.co.jp

株式会社ビジョンのコーポレートサイトです。海外渡航される方に快適なモバイルインターネット環境を提供する『グローバルWiFi』をはじめ、さまざまな情報通信サービスを提供しています。

Visit vision-net.co.jp

Key Findings

We analyzed Vision-net.co.jp page load time and found that the first response time was 501 ms and then it took 6.6 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

vision-net.co.jp performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value20.5 s

0/100

25%

SI (Speed Index)

Value13.9 s

1/100

10%

TBT (Total Blocking Time)

Value3,280 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value20.8 s

2/100

10%

Network Requests Diagram

vision-net.co.jp

501 ms

vision-net.co.jp

739 ms

gtm.js

76 ms

css

48 ms

style.css

30 ms

Our browser made a total of 106 requests to load all elements on the main page. We found that 54% of them (57 requests) were addressed to the original Vision-net.co.jp, 12% (13 requests) were made to Fonts.gstatic.com and 7% (7 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (3.8 sec) belongs to the original domain Vision-net.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 259.1 kB (12%)

Content Size

2.2 MB

After Optimization

1.9 MB

In fact, the total size of Vision-net.co.jp main page is 2.2 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. 65% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 38.8 kB

  • Original 48.3 kB
  • After minification 41.6 kB
  • After compression 9.5 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 6.7 kB, which is 14% 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 38.8 kB or 80% of the original size.

Image Optimization

-10%

Potential reduce by 193.0 kB

  • Original 2.0 MB
  • After minification 1.8 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. Vision Net images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 25.3 kB

  • Original 111.6 kB
  • After minification 111.6 kB
  • After compression 86.3 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 25.3 kB or 23% of the original size.

CSS Optimization

-13%

Potential reduce by 1.8 kB

  • Original 14.0 kB
  • After minification 13.9 kB
  • After compression 12.2 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. Vision-net.co.jp needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 13% of the original size.

Requests Breakdown

Number of requests can be reduced by 44 (49%)

Requests Now

90

After Optimization

46

The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vision Net. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

vision-net.co.jp accessibility score

91

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-hidden="true"] elements contain focusable descendents

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

vision-net.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

vision-net.co.jp SEO score

83

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 doesn't use 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 Vision-net.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 Vision-net.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 Vision Net. 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: