Report Summary

  • 28

    Performance

    Renders faster than
    49% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

jsndi.jp

日本非破壊検査協会

Page Load Speed

8.9 sec in total

First Response

1.2 sec

Resources Loaded

7.4 sec

Page Rendered

283 ms

jsndi.jp screenshot

About Website

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

一般社団法人 日本非破壊検査協会は、「非破壊検査法に関する調査・研究を行い、技術水準の向上・普及を図り、もって学術文化の発展に寄与する」ことを目的とした学術団体です。

Visit jsndi.jp

Key Findings

We analyzed Jsndi.jp page load time and found that the first response time was 1.2 sec and then it took 7.7 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

jsndi.jp performance score

28

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value14.2 s

0/100

25%

SI (Speed Index)

Value9.1 s

14/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value10.9 s

21/100

10%

Network Requests Diagram

jsndi.jp

1224 ms

import.css

366 ms

multiOnload.js

368 ms

fontsizer.js

384 ms

img_change.js

565 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 98% of them (64 requests) were addressed to the original Jsndi.jp, 2% (1 request) were made to Adobe.com. The less responsive or slowest element that took the longest time to load (3.4 sec) belongs to the original domain Jsndi.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 195.5 kB (41%)

Content Size

471.8 kB

After Optimization

276.3 kB

In fact, the total size of Jsndi.jp main page is 471.8 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. Only 10% of websites need less resources to load. Images take 251.1 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 44.0 kB

  • Original 53.4 kB
  • After minification 44.5 kB
  • After compression 9.3 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 8.8 kB, which is 17% 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 44.0 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 5.3 kB

  • Original 251.1 kB
  • After minification 245.8 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. Jsndi images are well optimized though.

JavaScript Optimization

-86%

Potential reduce by 94.8 kB

  • Original 109.8 kB
  • After minification 52.0 kB
  • After compression 15.0 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 94.8 kB or 86% of the original size.

CSS Optimization

-89%

Potential reduce by 51.3 kB

  • Original 57.6 kB
  • After minification 44.6 kB
  • After compression 6.3 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. Jsndi.jp needs all CSS files to be minified and compressed as it can save up to 51.3 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 47 (75%)

Requests Now

63

After Optimization

16

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jsndi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jsndi.jp accessibility score

51

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.

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

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

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

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

Best Practices

jsndi.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

jsndi.jp SEO score

58

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

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

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 Jsndi.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 Jsndi.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 Jsndi. 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: