Tools & Wizards About Us

Report Summary

  • 28

    Performance

    Renders faster than
    47% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

jva-net.or.jp

一般社団法人日本映像ソフト協会（JVA）

Page Load Speed

3.7 sec in total

First Response

773 ms

Resources Loaded

2.7 sec

Page Rendered

137 ms

About Website

Click here to check amazing JVA Net content for Japan. Otherwise, check out these important facts you probably never knew about jva-net.or.jp

映像ソフトに関する調査・研究、商品規格・基準、倫理基準の策定・普及を行い、映像ソフト産業の健全な発展を図ることを目的

Visit jva-net.or.jp

Key Findings

We analyzed Jva-net.or.jp page load time and found that the first response time was 773 ms and then it took 2.9 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

jva-net.or.jp performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value7.2 s

5/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value1,050 ms

25/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.2 s

32/100

10%

Network Requests Diagram

jva-net.or.jp

773 ms

common.css

347 ms

style.css

352 ms

jquery.bxslider.css

354 ms

jquery-1.7.1.min.js

887 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 92% of them (45 requests) were addressed to the original Jva-net.or.jp, 6% (3 requests) were made to Google-analytics.com and 2% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Jva-net.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 125.1 kB (43%)

Content Size

291.2 kB

After Optimization

166.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jva-net.or.jp main page is 291.2 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 147.2 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 21.6 kB

  • Original 27.6 kB
  • After minification 18.0 kB
  • After compression 6.0 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 9.7 kB, which is 35% 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 21.6 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 3.4 kB

  • Original 94.3 kB
  • After minification 91.0 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. JVA Net images are well optimized though.

JavaScript Optimization

-56%

Potential reduce by 82.5 kB

  • Original 147.2 kB
  • After minification 146.4 kB
  • After compression 64.7 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 82.5 kB or 56% of the original size.

CSS Optimization

-80%

Potential reduce by 17.6 kB

  • Original 22.0 kB
  • After minification 16.8 kB
  • After compression 4.5 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. Jva-net.or.jp needs all CSS files to be minified and compressed as it can save up to 17.6 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 20 (42%)

Requests Now

48

After Optimization

28

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JVA 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 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jva-net.or.jp accessibility score

69

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jva-net.or.jp best practices score

67

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

jva-net.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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jva-net.or.jp can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Jva-net.or.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 JVA 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: