Tools & Wizards About Us
japanheart.org screenshot

Report Summary

  • 2

    Performance

    Renders faster than
    20% of other websites

  • 85

    Accessibility

    Visual factors better than
    that of 58% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 81

    SEO

    Google-friendlier than
    42% of websites

japanheart.org

国際医療協力・海外医療ボランティア医師団 | ジャパンハート　JAPAN HEART

Page Load Speed

8.1 sec in total

First Response

464 ms

Resources Loaded

7.1 sec

Page Rendered

514 ms

japanheart.org screenshot

About Website

Click here to check amazing JAPAN HEART content for Japan. Otherwise, check out these important facts you probably never knew about japanheart.org

海外・発展途上国で国際協力を行う医師・看護師を派遣、アジアの子どもを支援する国際医療ボランティア組織

Visit japanheart.org

Key Findings

We analyzed Japanheart.org page load time and found that the first response time was 464 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

japanheart.org performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.1 s

0/100

10%

LCP (Largest Contentful Paint)

Value18.8 s

0/100

25%

SI (Speed Index)

Value22.6 s

0/100

10%

TBT (Total Blocking Time)

Value4,330 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.586

11/100

15%

TTI (Time to Interactive)

Value24.1 s

0/100

10%

Network Requests Diagram

japanheart.org

464 ms

www.japanheart.org

614 ms

jquery.js

856 ms

jquery.cookie.js

345 ms

jquery.textresizer.min.js

356 ms

Our browser made a total of 161 requests to load all elements on the main page. We found that 50% of them (80 requests) were addressed to the original Japanheart.org, 13% (21 requests) were made to Pbs.twimg.com and 12% (20 requests) were made to Scontent.xx.fbcdn.net. The less responsive or slowest element that took the longest time to load (3.3 sec) belongs to the original domain Japanheart.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 300.3 kB (12%)

Content Size

2.5 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Japanheart.org main page is 2.5 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 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 31.1 kB

  • Original 41.2 kB
  • After minification 37.6 kB
  • After compression 10.1 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. 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 31.1 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 78.8 kB

  • Original 2.2 MB
  • After minification 2.1 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. JAPAN HEART images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 100.4 kB

  • Original 166.3 kB
  • After minification 158.5 kB
  • After compression 65.8 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 100.4 kB or 60% of the original size.

CSS Optimization

-85%

Potential reduce by 89.9 kB

  • Original 105.7 kB
  • After minification 91.9 kB
  • After compression 15.8 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. Japanheart.org needs all CSS files to be minified and compressed as it can save up to 89.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 60 (38%)

Requests Now

158

After Optimization

98

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 158 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JAPAN HEART. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

japanheart.org

japanheart.org

464 ms

www.japanheart.org

www.japanheart.org

614 ms

jquery.js

jquery.js

856 ms

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jquery.cookie.js

345 ms

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356 ms

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539 ms

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361 ms

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528 ms

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Accessibility Review

japanheart.org accessibility score

85

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

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

Best Practices

japanheart.org 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

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

japanheart.org SEO score

81

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

Links do not have descriptive text

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

    JA

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Japanheart.org 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 Japanheart.org 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

japanheart.org

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