Access u-car.co.jp. ユーストカードットコム　公式ホームページ

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

24/100

25%

SI (Speed Index)

Value6.3 s

42/100

10%

TBT (Total Blocking Time)

Value70 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.08

94/100

15%

TTI (Time to Interactive)

Value3.6 s

91/100

10%

u-car.co.jp

631 ms

commonheader.jsp

317 ms

commonmain.jsp

315 ms

default.css

308 ms

jquery-1.2.3.js

822 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 99% of them (77 requests) were addressed to the original U-car.co.jp, 1% (1 request) were made to Seal.verisign.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain U-car.co.jp.

Content Size

823.7 kB

After Optimization

630.2 kB

In fact, the total size of U-car.co.jp main page is 823.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Images take 636.6 kB which makes up the majority of the site volume.

HTML Optimization

-41%

Potential reduce by 284 B

Original 701 B
After minification 696 B
After compression 417 B

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 284 B or 41% of the original size.

Image Optimization

-8%

Potential reduce by 53.5 kB

Original 636.6 kB
After minification 583.2 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. U Car images are well optimized though.

JavaScript Optimization

-75%

Potential reduce by 139.0 kB

Original 185.3 kB
After minification 141.7 kB
After compression 46.3 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 139.0 kB or 75% of the original size.

CSS Optimization

-73%

Potential reduce by 803 B

Original 1.1 kB
After minification 880 B
After compression 301 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. U-car.co.jp needs all CSS files to be minified and compressed as it can save up to 803 B or 73% 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 U Car. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts 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 items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

Search Engine Optimization Advices

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

High

Page is blocked from indexing

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

Language and Encoding

Language Detected

JA
Language Claimed

N/A
Encoding

SHIFT_JIS

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise U-car.co.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 U-car.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

u-car.co.jp

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

ユーストカードットコム 公式ホームページ

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

u-car.co.jp

commonheader.jsp

commonmain.jsp

default.css

jquery-1.2.3.js

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

u-car.co.jp

commonheader.jsp

commonmain.jsp

default.css

jquery-1.2.3.js

ssd.js

func.js

cookie.js

jquery-1.4.4.min.js

jquery.popup.css

jquery.popup.js

flashad2.jsp

leftmenu.do

top.do

spacer.gif

txt_flashad.gif

func.js

getseal

icon_arrow_white.gif

favorite.png

lmenu_hyper_ttl.gif

lmenu_hyper_subttl01.gif

lmanu_hyper_btn01.gif

lmanu_hyper_btn02.gif

lmenu_hyper_subttl02.gif

lmanu_smartphone_btn01.gif

lmenu_hyper_btm.gif

dotline.gif

lmenu_info_ttl.gif

lmenu_bn_aa.gif

lmenu_bn_soubashi.gif

paramcheck.do

hmenu_btn_home.gif

hmenu_btn_home_over.gif

hmenu_btn_about.gif

hmenu_btn_about_over.gif

hmenu_btn_news.gif

hmenu_btn_news_over.gif

hmenu_btn_souba.gif

hmenu_btn_souba_over.gif

hmenu_btn_aanews.gif

hmenu_btn_aanews_over.gif

hmenu_btn_bbs.gif

ユーストカードットコム　公式ホームページ