Access bikecenter.co.jp. バイクセンター｜バイク中古・新車販売

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value29.0 s

0/100

25%

SI (Speed Index)

Value16.8 s

0/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.52

15/100

15%

TTI (Time to Interactive)

Value21.6 s

1/100

10%

bikecenter.co.jp

688 ms

googleAnalytics.js

318 ms

jquery.js

1221 ms

jqFancyTransitions.1.8.min.js

498 ms

jquery.js

1282 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 96% of them (89 requests) were addressed to the original Bikecenter.co.jp, 3% (3 requests) were made to Google-analytics.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.5 sec) belongs to the original domain Bikecenter.co.jp.

Content Size

8.2 MB

After Optimization

7.9 MB

In fact, the total size of Bikecenter.co.jp main page is 8.2 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. 30% of websites need less resources to load. Images take 7.9 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 26.3 kB

Original 31.7 kB
After minification 29.1 kB
After compression 5.4 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. 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 26.3 kB or 83% of the original size.

Image Optimization

-1%

Potential reduce by 112.7 kB

Original 7.9 MB
After minification 7.8 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. Bikecenter images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 140.7 kB

Original 235.2 kB
After minification 233.3 kB
After compression 94.5 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 140.7 kB or 60% of the original size.

CSS Optimization

-80%

Potential reduce by 11.2 kB

Original 13.9 kB
After minification 11.2 kB
After compression 2.8 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. Bikecenter.co.jp needs all CSS files to be minified and compressed as it can save up to 11.2 kB or 80% 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 Bikecenter. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

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

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 Bikecenter.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 Bikecenter.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

bikecenter.co.jp

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

バイクセンター｜バイク中古・新車販売｜バイク買取・車検・修理・保険

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

bikecenter.co.jp

googleAnalytics.js

jquery.js

jqFancyTransitions.1.8.min.js

jquery.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

bikecenter.co.jp

googleAnalytics.js

jquery.js

jqFancyTransitions.1.8.min.js

jquery.js

top.css

menu.css

style.css

wowslider.js

script.js

ga.js

__utm.gif

css

logo.gif

header_tab.gif

dummy.gif

header_shd.gif

top_main_06.jpg

top_main_08.jpg

top_main_09.jpg

top_main_05.jpg

top_main_10.jpg

bg_w1000.gif

header_bg.gif

menu.gif

shop_hyoushou.jpg

shop_kokuchi.jpg

icon-number_1.gif

icon-number_2.gif

icon-number_3.gif

icon-number_4.gif

icon-number_5.gif

icon-number_6.gif

icon-number_7.gif

bar_yunyusha.gif

bar_news.gif

bar_campagin.gif

top_banner_hatsudenki.jpg

top_banner_yamahahonda.jpg

top_banner_import.jpg

top_banner_seibishi.jpg

anshin-p.jpg

header_logo_003.gif