Access silverstar.co.jp. シルバースタージャパン

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value15.1 s

1/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.132

81/100

15%

TTI (Time to Interactive)

Value15.8 s

6/100

10%

silverstar.co.jp

1104 ms

default.css

337 ms

fontsize2.js

354 ms

ga.js

68 ms

starback.jpg

178 ms

Our browser made a total of 94 requests to load all elements on the main page. We found that 97% of them (91 requests) were addressed to the original Silverstar.co.jp, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Stats.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Silverstar.co.jp.

Content Size

1.1 MB

After Optimization

895.0 kB

In fact, the total size of Silverstar.co.jp main page is 1.1 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. 45% of websites need less resources to load. Images take 972.5 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 74.3 kB

Original 82.0 kB
After minification 40.7 kB
After compression 7.8 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 41.3 kB, which is 50% 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 74.3 kB or 91% of the original size.

Image Optimization

-11%

Potential reduce by 103.5 kB

Original 972.5 kB
After minification 869.0 kB

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, Silverstar needs image optimization as it can save up to 103.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 7.5 kB

Original 25.5 kB
After minification 24.8 kB
After compression 18.0 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 7.5 kB or 30% of the original size.

CSS Optimization

-76%

Potential reduce by 861 B

Original 1.1 kB
After minification 1.1 kB
After compression 272 B

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. Silverstar.co.jp needs all CSS files to be minified and compressed as it can save up to 861 B or 76% of the original size.

Requests Now

After Optimization

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Silverstar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests 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 experience of reading tabular or list data using assistive technology, like a screen reader.

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

High

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

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

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

SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Silverstar.co.jp 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 Silverstar.co.jp main page’s claimed encoding is shift_jis. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

silverstar.co.jp

Open Graph description is not detected on the main page of Silverstar. 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

シルバースタージャパン

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

silverstar.co.jp

default.css

fontsize2.js

ga.js

starback.jpg

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

silverstar.co.jp

default.css

fontsize2.js

ga.js

starback.jpg

header_01.gif

header_02.gif

header_03.gif

header_04.gif

header_05.gif

main_menu_01.gif

button01.gif

main_menu_spacer.gif

button02.gif

button03.gif

button04.gif

button05.gif

button06.gif

main_menu_11.gif

spacer.gif

main_menu_13.gif

main_menu_14.gif

spacer.gif

home_main_img3.jpg

shinsaku_soft_1.gif

icon_wiiu_1.jpg

pa_wiiugshogi.png

icon_windows_1.jpg

pa_gigo16.png

icon_iphone_1.jpg

icon_android_1.jpg

ausp_ms3k.png

android_neko_reversi_s.jpg

ausp_sip8.png

android_igo2.png

icon_3ds_1.jpg

3ds_noah.jpg

pa_pdfdll2.png

pa_sip8.png

__utm.gif

collect

shinsaku_soft_2.gif

info.gif