Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 75% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 92

    SEO

    Google-friendlier than
    75% of websites

d2-wheels.com

D2 Racing琦玉集團 | 避震器、煞車系統、氣壓零件、鋁圈

Page Load Speed

185.3 sec in total

First Response

2 sec

Resources Loaded

27.1 sec

Page Rendered

156.2 sec

d2-wheels.com screenshot

About Website

Welcome to d2-wheels.com homepage info - get ready to check D2 Wheels best content for Taiwan right away, or after learning these important things about d2-wheels.com

本公司是臺灣專業製造高性能避震器、煞車系統、氣壓零件及鋁圈的最大製造廠。

Visit d2-wheels.com

Key Findings

We analyzed D2-wheels.com page load time and found that the first response time was 2 sec and then it took 183.3 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

d2-wheels.com performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.3 s

3/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value13.3 s

2/100

10%

TBT (Total Blocking Time)

Value210 ms

89/100

30%

CLS (Cumulative Layout Shift)

Value0.183

66/100

15%

TTI (Time to Interactive)

Value10.5 s

23/100

10%

Network Requests Diagram

d2-wheels.com

2001 ms

bootstrap.min.css

992 ms

font-awesome.min.css

598 ms

all.css

600 ms

jquery-1.11.1.js

1396 ms

Our browser made a total of 595 requests to load all elements on the main page. We found that 99% of them (591 requests) were addressed to the original D2-wheels.com, 1% (4 requests) were made to Code.createjs.com. The less responsive or slowest element that took the longest time to load (2.5 sec) belongs to the original domain D2-wheels.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 21.3 MB (7%)

Content Size

325.7 MB

After Optimization

304.4 MB

In fact, the total size of D2-wheels.com main page is 325.7 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. Only a small number of websites need less resources to load. Images take 324.8 MB which makes up the majority of the site volume.

HTML Optimization

-94%

Potential reduce by 268.4 kB

  • Original 286.5 kB
  • After minification 206.4 kB
  • After compression 18.1 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 80.1 kB, which is 28% 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 268.4 kB or 94% of the original size.

Image Optimization

-6%

Potential reduce by 20.5 MB

  • Original 324.8 MB
  • After minification 304.2 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. D2 Wheels images are well optimized though.

JavaScript Optimization

-77%

Potential reduce by 365.3 kB

  • Original 476.5 kB
  • After minification 330.9 kB
  • After compression 111.1 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 365.3 kB or 77% of the original size.

CSS Optimization

-84%

Potential reduce by 140.5 kB

  • Original 167.0 kB
  • After minification 139.3 kB
  • After compression 26.4 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. D2-wheels.com needs all CSS files to be minified and compressed as it can save up to 140.5 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (2%)

Requests Now

593

After Optimization

581

The browser has sent 593 CSS, Javascripts, AJAX and image requests in order to completely render the main page of D2 Wheels. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

d2-wheels.com accessibility score

90

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Links do not have a discernible name

Best Practices

d2-wheels.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

d2-wheels.com SEO score

92

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

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise D2-wheels.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 D2-wheels.com 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

Open Graph description is not detected on the main page of D2 Wheels. 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: