Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 62% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    29% of websites

  • 91

    SEO

    Google-friendlier than
    76% of websites

nkg.or.jp

公益社団法人日本語教育学会

Page Load Speed

6.2 sec in total

First Response

1 sec

Resources Loaded

5 sec

Page Rendered

119 ms

nkg.or.jp screenshot

About Website

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

日本語教育学会は,日本語を第一言語としない者に対する日本語教育の研究促進と振興を図り,もって我が国の学術の発展並びに我が国と諸外国との相互理解及び学術文化の交流に寄与することを目的した公益社団法人です。

Visit nkg.or.jp

Key Findings

We analyzed Nkg.or.jp page load time and found that the first response time was 1 sec and then it took 5.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

nkg.or.jp performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value7.6 s

4/100

25%

SI (Speed Index)

Value11.5 s

5/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.561

12/100

15%

TTI (Time to Interactive)

Value11.2 s

20/100

10%

Network Requests Diagram

nkg.or.jp

1018 ms

style.css

353 ms

rollover.js

357 ms

jquery-1.9.1.min.js

5 ms

ga.js

52 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 95% of them (54 requests) were addressed to the original Nkg.or.jp, 4% (2 requests) were made to Google-analytics.com and 2% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (2.9 sec) belongs to the original domain Nkg.or.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.9 kB (20%)

Content Size

315.0 kB

After Optimization

252.1 kB

In fact, the total size of Nkg.or.jp main page is 315.0 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. Images take 238.1 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 15.3 kB

  • Original 20.0 kB
  • After minification 16.5 kB
  • After compression 4.6 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 3.5 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 15.3 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 9.6 kB

  • Original 238.1 kB
  • After minification 228.5 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. Nkg images are well optimized though.

JavaScript Optimization

-63%

Potential reduce by 29.7 kB

  • Original 47.2 kB
  • After minification 47.1 kB
  • After compression 17.5 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 29.7 kB or 63% of the original size.

CSS Optimization

-85%

Potential reduce by 8.2 kB

  • Original 9.7 kB
  • After minification 7.7 kB
  • After compression 1.5 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. Nkg.or.jp needs all CSS files to be minified and compressed as it can save up to 8.2 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (16%)

Requests Now

55

After Optimization

46

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nkg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

nkg.or.jp accessibility score

82

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Links do not have a discernible name

Best Practices

nkg.or.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

nkg.or.jp SEO score

91

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    N/A

  • Encoding

    SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nkg.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 Nkg.or.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 Nkg. 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: