Access just-j.com. ジャストコーポレーション

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value14.5 s

0/100

25%

SI (Speed Index)

Value16.8 s

0/100

10%

TBT (Total Blocking Time)

Value930 ms

30/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value17.2 s

4/100

10%

just-j.com

511 ms

www.just-j.com

1902 ms

all.css

51 ms

style.css

1125 ms

slick.css

503 ms

Our browser made a total of 112 requests to load all elements on the main page. We found that 73% of them (82 requests) were addressed to the original Just-j.com, 6% (7 requests) were made to Google.com and 5% (6 requests) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (10.3 sec) belongs to the original domain Just-j.com.

Content Size

6.9 MB

After Optimization

6.4 MB

In fact, the total size of Just-j.com main page is 6.9 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. 55% of websites need less resources to load. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 105.9 kB

Original 123.3 kB
After minification 74.4 kB
After compression 17.4 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. This page needs HTML code to be minified as it can gain 48.9 kB, which is 40% 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 105.9 kB or 86% of the original size.

Image Optimization

-4%

Potential reduce by 245.1 kB

Original 6.3 MB
After minification 6.1 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. Just J images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 106.9 kB

Original 372.5 kB
After minification 371.7 kB
After compression 265.6 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 106.9 kB or 29% of the original size.

CSS Optimization

-57%

Potential reduce by 45.0 kB

Original 78.9 kB
After minification 65.8 kB
After compression 33.9 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. Just-j.com needs all CSS files to be minified and compressed as it can save up to 45.0 kB or 57% of the original size.

Requests Now

106

After Optimization

The browser has sent 106 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Just J. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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 semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

High

Links do not have a discernible name

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

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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 Just-j.com 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 Just-j.com 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

just-j.com

Open Graph description is not detected on the main page of Just J. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

ジャストコーポレーション

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

just-j.com

www.just-j.com

all.css

style.css

slick.css

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

just-j.com

www.just-j.com

all.css

style.css

slick.css

slick-theme.css

jquery.min.js

slick.min.js

cse.js

all.css

jquery.inview.min.js

script.js

gtm.js

p_mark.gif

logo-header.png

slider_calendar2024.jpg

slider_futoondemand.jpg

slider_sdgsgoods.jpg

slider_smoothtouchmetal.jpg

slider_img_4.jpg

service_1.jpg

service_2.jpg

service_3.jpg

service_4.jpg

e-ccatarog_link.png

contents_meishi_15thcam.jpg

contets_sign_material.jpg

contents_sdgsgoods.jpg

contents_ecopa.jpg

contents_B_2.jpg

contents_B_3.jpg

contents_B_8.jpg

contents_B_1.jpg

contents_D_1.jpg

contents_D_2.jpg

contents_D_3.jpg

contents_D_4.jpg

contents_E_strap.jpg

contents_E_ecopa.jpg

contents_E_pop.jpg

contents_E_nobori.jpg

contents_E_pen.jpg

contents_E_calendar.jpg