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cso.co.jp screenshot

Report Summary

  • 78

    Performance

    Renders faster than
    85% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

cso.co.jp

自転車通販 千葉県松戸市のサイクルサービスおおやまオンラインショップ

Page Load Speed

5.6 sec in total

First Response

529 ms

Resources Loaded

4.8 sec

Page Rendered

320 ms

cso.co.jp screenshot

About Website

Welcome to cso.co.jp homepage info - get ready to check Cso best content for Japan right away, or after learning these important things about cso.co.jp

千葉県松戸市のスポーツ自転車専門店 サイクルサービスおおやまの自転車通販!!Birdy、BROMPTONなど人気の折りたたみ自転車、クロスバイク、ロードバイク、ＭＴＢなどスポーツ自転車を中心に豊富な品揃えでお待ちしております

Visit cso.co.jp

Key Findings

We analyzed Cso.co.jp page load time and found that the first response time was 529 ms and then it took 5.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

cso.co.jp performance score

78

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

72/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

78/100

25%

SI (Speed Index)

Value5.0 s

64/100

10%

TBT (Total Blocking Time)

Value190 ms

91/100

30%

CLS (Cumulative Layout Shift)

Value0.221

56/100

15%

TTI (Time to Interactive)

Value3.2 s

94/100

10%

Network Requests Diagram

cso.co.jp

529 ms

cso.co.jp

865 ms

bootstrap.min.css

1363 ms

cso_main.css

888 ms

bar.css

895 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that all of those requests were addressed to Cso.co.jp and no external sources were called. The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain Cso.co.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 351.8 kB (24%)

Content Size

1.5 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cso.co.jp main page is 1.5 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. 40% of websites need less resources to load. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 36.3 kB

  • Original 42.2 kB
  • After minification 36.7 kB
  • After compression 5.9 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 5.5 kB, which is 13% 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 36.3 kB or 86% of the original size.

Image Optimization

-5%

Potential reduce by 55.5 kB

  • Original 1.1 MB
  • After minification 1.0 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. Cso images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 153.7 kB

  • Original 207.6 kB
  • After minification 177.0 kB
  • After compression 53.9 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 153.7 kB or 74% of the original size.

CSS Optimization

-83%

Potential reduce by 106.4 kB

  • Original 128.6 kB
  • After minification 124.2 kB
  • After compression 22.3 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. Cso.co.jp needs all CSS files to be minified and compressed as it can save up to 106.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (17%)

Requests Now

65

After Optimization

54

  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cso. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

cso.co.jp

cso.co.jp

529 ms

cso.co.jp

cso.co.jp

865 ms

bootstrap.min.css

bootstrap.min.css

1363 ms

cso_main.css

cso_main.css

888 ms

bar.css

bar.css

895 ms

header.css

header.css

896 ms

footer.css

footer.css

899 ms

owl.carousel.css

owl.carousel.css

900 ms

owl.theme.css

owl.theme.css

1061 ms

top-page.css

top-page.css

1070 ms

jquery.min.js

jquery.min.js

1418 ms

bootstrap.min.js

bootstrap.min.js

1248 ms

pagetop.js

pagetop.js

1074 ms

owl.carousel.js

owl.carousel.js

1581 ms

owl.carousel.handle.js

owl.carousel.handle.js

1243 ms

logo_header_cso.png

logo_header_cso.png

203 ms

info.png

info.png

204 ms

cart.png

cart.png

205 ms

shop.png

shop.png

206 ms

eigyou.png

eigyou.png

207 ms

top_birdy.jpg

top_birdy.jpg

314 ms

top_carryme.jpg

top_carryme.jpg

508 ms

top_brompton.jpg

top_brompton.jpg

697 ms

top_trek.jpg

top_trek.jpg

525 ms

top_sale.jpg

top_sale.jpg

1051 ms

top_reach.jpg

top_reach.jpg

528 ms

news_11_small.jpg

news_11_small.jpg

661 ms

news_01_small.jpg

news_01_small.jpg

678 ms

news_6_small.jpg

news_6_small.jpg

701 ms

more_off.png

more_off.png

705 ms

bike_crossbike.jpg

bike_crossbike.jpg

837 ms

bike_foldingbike.jpg

bike_foldingbike.jpg

848 ms

bike_roadbike.jpg

bike_roadbike.jpg

872 ms

bike_mtb.jpg

bike_mtb.jpg

875 ms

bike_minivelo.jpg

bike_minivelo.jpg

880 ms

bike_kidsbike.jpg

bike_kidsbike.jpg

1012 ms

parts_bd-1.jpg

parts_bd-1.jpg

1017 ms

parts_birdy.jpg

parts_birdy.jpg

1048 ms

parts_brompton.jpg

parts_brompton.jpg

1050 ms

parts_carryme.jpg

parts_carryme.jpg

1055 ms

parts_tire.jpg

parts_tire.jpg

1188 ms

parts_computer.jpg

parts_computer.jpg

1187 ms

parts_pump.jpg

parts_pump.jpg

1222 ms

parts_light.jpg

parts_light.jpg

1226 ms

parts_lock.jpg

parts_lock.jpg

1226 ms

parts_saddle.jpg

parts_saddle.jpg

1230 ms

parts_spoke.jpg

parts_spoke.jpg

1356 ms

parts_care.jpg

parts_care.jpg

1361 ms

brand_brompton.png

brand_brompton.png

1397 ms

brand_bd-1.png

brand_bd-1.png

1356 ms

brand_birdy.png

brand_birdy.png

1204 ms

brand_carryme.png

brand_carryme.png

1206 ms

brand_trek.png

brand_trek.png

1326 ms

brand_jamis.png

brand_jamis.png

1336 ms

brand_reach.png

brand_reach.png

1370 ms

brand_if.png

brand_if.png

1371 ms

brand_masi.png

brand_masi.png

1266 ms

brand_polygon.png

brand_polygon.png

1077 ms

brand_mellows.png

brand_mellows.png

1174 ms

brand_dahon.png

brand_dahon.png

1186 ms

service_repair.png

service_repair.png

1088 ms

service_delivery.png

service_delivery.png

1074 ms

service_appraisal.png

service_appraisal.png

1059 ms

service_buying.png

service_buying.png

1060 ms

btn_arrow_top.png

btn_arrow_top.png

1164 ms

footer_cso.png

footer_cso.png

1054 ms

qr.png

qr.png

1077 ms

Accessibility Review

cso.co.jp accessibility score

76

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

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.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

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

Impact

Issue

High

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

High

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

Best Practices

cso.co.jp best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

cso.co.jp SEO score

92

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

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/).

Impact

Issue

High

Document uses legible font sizes

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 Cso.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 Cso.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

cso.co.jp

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