Tools & Wizards About Us

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 53

    Accessibility

    Visual factors better than
    that of 22% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

copperhome.net

铜-今日铜价-铜价走势图-铜行业门户网站-铜之家

Page Load Speed

7 sec in total

First Response

1 sec

Resources Loaded

5.8 sec

Page Rendered

217 ms

About Website

Welcome to copperhome.net homepage info - get ready to check Copperhome best content for United States right away, or after learning these important things about copperhome.net

铜之家(copperhome.net)是一个专注于铜行业的门户网站,为所有铜企业提供买卖商贸平台.每天及时的铜价信息,铜业新闻,汇集铜业专业知识,铜业专家信息及丰富的供应求购信息为一体的综合性铜业门户网站.

Visit copperhome.net

Key Findings

We analyzed Copperhome.net page load time and found that the first response time was 1 sec and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

copperhome.net performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

26/100

10%

LCP (Largest Contentful Paint)

Value4.2 s

45/100

25%

SI (Speed Index)

Value5.5 s

55/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.5 s

70/100

10%

Network Requests Diagram

copperhome.net

1020 ms

style.css

755 ms

index.css

763 ms

catalog.css

764 ms

jquery-3.6.4.min.js

1004 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 89% of them (41 requests) were addressed to the original Copperhome.net, 4% (2 requests) were made to Hm.baidu.com and 2% (1 request) were made to Zzlz.gsxt.gov.cn. The less responsive or slowest element that took the longest time to load (3.9 sec) relates to the external source Zzlz.gsxt.gov.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 285.5 kB (39%)

Content Size

723.3 kB

After Optimization

437.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Copperhome.net main page is 723.3 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. 25% of websites need less resources to load. Images take 580.2 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 66.3 kB

  • Original 82.9 kB
  • After minification 82.6 kB
  • After compression 16.6 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 66.3 kB or 80% of the original size.

Image Optimization

-36%

Potential reduce by 208.0 kB

  • Original 580.2 kB
  • After minification 372.3 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. Obviously, Copperhome needs image optimization as it can save up to 208.0 kB or 36% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-18%

Potential reduce by 9.4 kB

  • Original 52.9 kB
  • After minification 51.5 kB
  • After compression 43.5 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 9.4 kB or 18% of the original size.

CSS Optimization

-24%

Potential reduce by 1.8 kB

  • Original 7.3 kB
  • After minification 7.3 kB
  • After compression 5.5 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. Copperhome.net needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (56%)

Requests Now

43

After Optimization

19

  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Copperhome. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

copperhome.net accessibility score

53

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.

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

copperhome.net best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

copperhome.net SEO score

62

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Copperhome.net can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Copperhome.net 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 Copperhome. 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: