Tools & Wizards About Us
koga-bikes.jp screenshot

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

koga-bikes.jp

KOGA / ジオライドジャパン / オランダを代表するバイシクルブランド コガ 日本オフィシャルサイト

Page Load Speed

5.6 sec in total

First Response

514 ms

Resources Loaded

4.8 sec

Page Rendered

326 ms

koga-bikes.jp screenshot

About Website

Click here to check amazing KOGA Bikes content for Japan. Otherwise, check out these important facts you probably never knew about koga-bikes.jp

1974年、オランダにて設立。以降KOGAは永年に渡りレースシーンを支えてきた。Peter WinnenはKOGAで、オランダ人として初めてツールドフランスの表彰台のトップに立ち、2004年のアテネでは、オランダの英雄Theo Bossの銀、Franco Marvulliの金メダル獲得を支える。2000/2004年続けて、世界で一番メダルを多く獲得した女子選手の Leontien Zijlaard...

Visit koga-bikes.jp

Key Findings

We analyzed Koga-bikes.jp page load time and found that the first response time was 514 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

koga-bikes.jp performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value18.2 s

0/100

25%

SI (Speed Index)

Value15.6 s

0/100

10%

TBT (Total Blocking Time)

Value1,000 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.326

35/100

15%

TTI (Time to Interactive)

Value21.1 s

1/100

10%

Network Requests Diagram

koga-bikes.jp

514 ms

koga-bikes.jp

669 ms

css

39 ms

css

54 ms

css

59 ms

Our browser made a total of 119 requests to load all elements on the main page. We found that 38% of them (45 requests) were addressed to the original Koga-bikes.jp, 18% (22 requests) were made to Static.xx.fbcdn.net and 15% (18 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Koga-bikes.jp.

Page Optimization Overview & Recommendations

Page size can be reduced by 540.8 kB (17%)

Content Size

3.2 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Koga-bikes.jp main page is 3.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 19.2 kB

  • Original 26.8 kB
  • After minification 24.7 kB
  • After compression 7.6 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 19.2 kB or 72% of the original size.

Image Optimization

-1%

Potential reduce by 36.4 kB

  • Original 2.5 MB
  • After minification 2.4 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. KOGA Bikes images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 233.7 kB

  • Original 384.3 kB
  • After minification 383.1 kB
  • After compression 150.6 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 233.7 kB or 61% of the original size.

CSS Optimization

-88%

Potential reduce by 251.5 kB

  • Original 286.2 kB
  • After minification 223.4 kB
  • After compression 34.7 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. Koga-bikes.jp needs all CSS files to be minified and compressed as it can save up to 251.5 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 65 (64%)

Requests Now

101

After Optimization

36

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 101 CSS, Javascripts, AJAX and image requests in order to completely render the main page of KOGA Bikes. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 45 to 1 for JavaScripts and from 16 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

koga-bikes.jp

koga-bikes.jp

514 ms

koga-bikes.jp

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669 ms

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39 ms

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Accessibility Review

koga-bikes.jp accessibility score

64

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

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

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

koga-bikes.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

High

Page has valid source maps

SEO Factors

koga-bikes.jp SEO score

82

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

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 Koga-bikes.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 Koga-bikes.jp 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

koga-bikes.jp

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