Report Summary

  • 11

    Performance

    Renders faster than
    24% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

Page Load Speed

9.6 sec in total

First Response

1.1 sec

Resources Loaded

8.2 sec

Page Rendered

239 ms

db.netkeiba.com screenshot

About Website

Click here to check amazing Db Netkeiba content for Japan. Otherwise, check out these important facts you probably never knew about db.netkeiba.com

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Key Findings

We analyzed Db.netkeiba.com page load time and found that the first response time was 1.1 sec and then it took 8.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

db.netkeiba.com performance score

11

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

14/100

10%

LCP (Largest Contentful Paint)

Value5.4 s

20/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value4,430 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.368

29/100

15%

TTI (Time to Interactive)

Value28.9 s

0/100

10%

Network Requests Diagram

db.netkeiba.com

1126 ms

reset.css

856 ms

common.css

898 ms

db_detail.css

851 ms

horse_detail.css

832 ms

Our browser made a total of 153 requests to load all elements on the main page. We found that 25% of them (39 requests) were addressed to the original Db.netkeiba.com, 46% (71 requests) were made to Cimg2.db.netkeiba.com and 7% (10 requests) were made to Cimg.findfriends.jp. The less responsive or slowest element that took the longest time to load (4.2 sec) relates to the external source Cimg2.db.netkeiba.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 509.2 kB (56%)

Content Size

911.3 kB

After Optimization

402.1 kB

In fact, the total size of Db.netkeiba.com main page is 911.3 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. 40% of websites need less resources to load. Javascripts take 358.8 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 53.9 kB

  • Original 66.8 kB
  • After minification 64.1 kB
  • After compression 12.9 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. 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 53.9 kB or 81% of the original size.

Image Optimization

-7%

Potential reduce by 19.7 kB

  • Original 280.2 kB
  • After minification 260.5 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. Db Netkeiba images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 260.4 kB

  • Original 358.8 kB
  • After minification 295.7 kB
  • After compression 98.3 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 260.4 kB or 73% of the original size.

CSS Optimization

-85%

Potential reduce by 175.1 kB

  • Original 205.5 kB
  • After minification 161.1 kB
  • After compression 30.4 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. Db.netkeiba.com needs all CSS files to be minified and compressed as it can save up to 175.1 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 86 (58%)

Requests Now

149

After Optimization

63

The browser has sent 149 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Db Netkeiba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

db.netkeiba.com accessibility score

79

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

<input type="image"> elements do not have [alt] text

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

db.netkeiba.com best practices score

58

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

db.netkeiba.com SEO score

58

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

Language and Encoding

  • Language Detected

    JA

  • Language Claimed

    JA

  • Encoding

    EUC-JP

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Db.netkeiba.com 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 Db.netkeiba.com main page’s claimed encoding is euc-jp. 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

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