Access ngo-jvc.net. 日本国際ボランティアセンター（JVC）

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

10/100

10%

LCP (Largest Contentful Paint)

Value15.7 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value590 ms

50/100

30%

CLS (Cumulative Layout Shift)

Value0.082

94/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

ngo-jvc.net

542 ms

www.ngo-jvc.net

1270 ms

import.css

361 ms

all.css

67 ms

css2

71 ms

Our browser made a total of 85 requests to load all elements on the main page. We found that 84% of them (71 requests) were addressed to the original Ngo-jvc.net, 7% (6 requests) were made to Fonts.gstatic.com and 4% (3 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (4 sec) belongs to the original domain Ngo-jvc.net.

Content Size

20.2 MB

After Optimization

16.7 MB

In fact, the total size of Ngo-jvc.net main page is 20.2 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. Only a small number of websites need less resources to load. Images take 19.9 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 45.0 kB

Original 56.0 kB
After minification 55.8 kB
After compression 11.0 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 45.0 kB or 80% of the original size.

Image Optimization

-17%

Potential reduce by 3.4 MB

Original 19.9 MB
After minification 16.5 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, Ngo JVC needs image optimization as it can save up to 3.4 MB or 17% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-17%

Potential reduce by 18.3 kB

Original 107.4 kB
After minification 107.4 kB
After compression 89.1 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 18.3 kB or 17% of the original size.

CSS Optimization

-22%

Potential reduce by 18.5 kB

Original 83.5 kB
After minification 83.2 kB
After compression 65.0 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. Ngo-jvc.net needs all CSS files to be minified and compressed as it can save up to 18.5 kB or 22% of the original size.

Requests Now

After Optimization

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ngo JVC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

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.

High

ARIA toggle fields do not have accessible names

High

[aria-*] attributes do not have valid values

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

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

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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/).

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 Ngo-jvc.net 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 Ngo-jvc.net 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

ngo-jvc.net

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

Report Summary

Performance

Accessibility

Best Practices

SEO

日本国際ボランティアセンター（JVC）｜国際協力NGO

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

ngo-jvc.net

www.ngo-jvc.net

import.css

all.css

css2

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ngo-jvc.net

www.ngo-jvc.net

import.css

all.css

css2

js

jquery.min.js

viewport-extra.min.js

ofi.min.js

jquery.accordion.js

common.js

aos.css

aos.js

slick.css

slick.js

jquery.matchHeight-min.js

swiper-bundle.min.css

swiper-bundle.min.js

tw_sp.png

fb_sp.png

insta_sp.png

youtube_sp.png

logo.png

img01.jpg

img02.jpg

img03.jpg

slide01.jpg

slide01_sp.jpg

slide02.jpg

slide02_sp.jpg

slide04.jpg

slide04_sp.jpg

text.png

text_sp.png

db18d47b77df19ce6d1418ef15a9728f-1715735466.png

31aed1fc9d38cfbe06198dfa6c401c91-1715255898.png

3c816b9d62809917d148bfd3a221ce52-1715164290.png

c1137649f9fb16425664505933a7d8c3-1713166762.png

img05.png

img06.png

map.png

bcba65ae7b2d3406d5d50eeb1e21cbe5-1715263322.jpg

31aed1fc9d38cfbe06198dfa6c401c91-1715591622.png