Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

ed.kadokawadwango.co.jp

Default Parallels Plesk Page

Page Load Speed

49.6 sec in total

First Response

647 ms

Resources Loaded

44 sec

Page Rendered

4.9 sec

ed.kadokawadwango.co.jp screenshot

About Website

Welcome to ed.kadokawadwango.co.jp homepage info - get ready to check Ed Kadokawadwango best content for Japan right away, or after learning these important things about ed.kadokawadwango.co.jp

学校法人角川ドワンゴ学園 N高等学校のページです。N高はネットで学べる通信制高校です。全日制高校と同じ卒業資格を取得することができます。

Visit ed.kadokawadwango.co.jp

Key Findings

We analyzed Ed.kadokawadwango.co.jp page load time and found that the first response time was 647 ms and then it took 48.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there were 19 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

ed.kadokawadwango.co.jp performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.8 s

0/100

10%

LCP (Largest Contentful Paint)

Value19.5 s

0/100

25%

SI (Speed Index)

Value21.0 s

0/100

10%

TBT (Total Blocking Time)

Value1,290 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.311

37/100

15%

TTI (Time to Interactive)

Value20.4 s

2/100

10%

Network Requests Diagram

ed.kadokawadwango.co.jp

647 ms

nnn.ed.jp

1335 ms

base.css

409 ms

common.css

916 ms

top.css

701 ms

Our browser made a total of 165 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Ed.kadokawadwango.co.jp, 56% (93 requests) were made to Nnn.ed.jp and 3% (5 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source Nnn.ed.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 411.3 kB (5%)

Content Size

8.3 MB

After Optimization

7.9 MB

In fact, the total size of Ed.kadokawadwango.co.jp main page is 8.3 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. 60% of websites need less resources to load. Images take 7.7 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 94.3 kB

  • Original 111.4 kB
  • After minification 85.7 kB
  • After compression 17.1 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. This page needs HTML code to be minified as it can gain 25.7 kB, which is 23% 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 94.3 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 17.3 kB

  • Original 7.7 MB
  • After minification 7.7 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. Ed Kadokawadwango images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 229.4 kB

  • Original 377.5 kB
  • After minification 334.3 kB
  • After compression 148.1 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 229.4 kB or 61% of the original size.

CSS Optimization

-84%

Potential reduce by 70.3 kB

  • Original 83.7 kB
  • After minification 58.5 kB
  • After compression 13.4 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. Ed.kadokawadwango.co.jp needs all CSS files to be minified and compressed as it can save up to 70.3 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 80 (60%)

Requests Now

134

After Optimization

54

The browser has sent 134 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ed Kadokawadwango. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 31 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

ed.kadokawadwango.co.jp accessibility score

71

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

Best Practices

ed.kadokawadwango.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

High

Page has valid source maps

SEO Factors

ed.kadokawadwango.co.jp SEO score

100

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

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ed.kadokawadwango.co.jp can be misinterpreted by Google and other search engines. Our service has detected that English 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 Ed.kadokawadwango.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 data is detected on the main page of Ed Kadokawadwango. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: