Tools & Wizards About Us
h-navi.jp screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 88

    SEO

    Google-friendlier than
    66% of websites

h-navi.jp

LITALICO発達ナビ | 発達障害ポータルサイト

Page Load Speed

7.9 sec in total

First Response

307 ms

Resources Loaded

7.2 sec

Page Rendered

401 ms

h-navi.jp screenshot

About Website

Visit h-navi.jp now to see the best up-to-date H Navi content for Japan and also check out these interesting facts you probably never knew about h-navi.jp

LITALICO発達ナビは、ASD（自閉スペクトラム症）やADHD（注意欠如・多動症）、LD（学習障害／限局性学習症）などの発達障害（神経発達症）や知的障害（知的発達症）、ダウン症がある子どもの保護者や支援者向けポータルサイトです。

Visit h-navi.jp

Key Findings

We analyzed H-navi.jp page load time and found that the first response time was 307 ms and then it took 7.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

h-navi.jp performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value6.8 s

7/100

25%

SI (Speed Index)

Value5.9 s

48/100

10%

TBT (Total Blocking Time)

Value770 ms

38/100

30%

CLS (Cumulative Layout Shift)

Value0.459

19/100

15%

TTI (Time to Interactive)

Value11.0 s

21/100

10%

Network Requests Diagram

h-navi.jp

307 ms

h-navi.jp

1090 ms

application.pc-d868dea730f3a03b0e7a03835c216575996bdc1cf7ce0251f5ba98340842174f.css

1023 ms

application.pc-7f19810e813abbf378e1738536020bff589d76edb8014f8aff0590905363213c.js

1459 ms

all.js

574 ms

Our browser made a total of 113 requests to load all elements on the main page. We found that 50% of them (56 requests) were addressed to the original H-navi.jp, 12% (14 requests) were made to O.twimg.com and 9% (10 requests) were made to Static.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain H-navi.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.0 MB (34%)

Content Size

5.9 MB

After Optimization

3.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of H-navi.jp main page is 5.9 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 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 49.1 kB

  • Original 63.5 kB
  • After minification 57.2 kB
  • After compression 14.4 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 49.1 kB or 77% of the original size.

Image Optimization

-28%

Potential reduce by 1.5 MB

  • Original 5.3 MB
  • After minification 3.8 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. Obviously, H Navi needs image optimization as it can save up to 1.5 MB or 28% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-77%

Potential reduce by 269.0 kB

  • Original 348.9 kB
  • After minification 207.8 kB
  • After compression 80.0 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 269.0 kB or 77% of the original size.

CSS Optimization

-87%

Potential reduce by 159.5 kB

  • Original 184.0 kB
  • After minification 184.0 kB
  • After compression 24.5 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. H-navi.jp needs all CSS files to be minified and compressed as it can save up to 159.5 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 30 (28%)

Requests Now

109

After Optimization

79

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 109 CSS, Javascripts, AJAX and image requests in order to completely render the main page of H Navi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

h-navi.jp

h-navi.jp

307 ms

h-navi.jp

h-navi.jp

1090 ms

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1023 ms

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1459 ms

all.js

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574 ms

widgets.js

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40 ms

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67 ms

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1775 ms

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166 ms

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166 ms

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319 ms

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320 ms

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454 ms

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460 ms

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454 ms

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463 ms

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463 ms

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1193 ms

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613 ms

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612 ms

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613 ms

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756 ms

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1336 ms

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1482 ms

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2662 ms

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1914 ms

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1921 ms

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1923 ms

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Accessibility Review

h-navi.jp accessibility score

82

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.

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

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

h-navi.jp best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

h-navi.jp SEO score

88

Search Engine Optimization Advices

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

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise H-navi.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 H-navi.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

h-navi.jp

Open Graph data is detected on the main page of H Navi. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: