Tools & Wizards About Us

Report Summary

  • 66

    Performance

    Renders faster than
    79% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

szdaneng.cn

深圳市大能节能技术有限公司-燃气节能厨房设备专家

Page Load Speed

38.2 sec in total

First Response

2.6 sec

Resources Loaded

34 sec

Page Rendered

1.6 sec

About Website

Visit szdaneng.cn now to see the best up-to-date Szdaneng content and also check out these interesting facts you probably never knew about szdaneng.cn

深圳市大能节能技术有限公司-酒店餐饮燃气节能蒸汽热水设备专家

Visit szdaneng.cn

Key Findings

We analyzed Szdaneng.cn page load time and found that the first response time was 2.6 sec and then it took 35.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

szdaneng.cn performance score

66

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

92/100

10%

LCP (Largest Contentful Paint)

Value14.7 s

0/100

25%

SI (Speed Index)

Value6.6 s

38/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.112

86/100

15%

TTI (Time to Interactive)

Value2.4 s

98/100

10%

Network Requests Diagram

szdaneng.cn

2637 ms

css2.css

879 ms

function.js

854 ms

hm.js

1445 ms

hm.js

2117 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 63% of them (42 requests) were addressed to the original Szdaneng.cn, 12% (8 requests) were made to Bdimg.share.baidu.com and 9% (6 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.1 sec) relates to the external source Ers.baidu.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 128.7 kB (40%)

Content Size

325.9 kB

After Optimization

197.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Szdaneng.cn main page is 325.9 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. Javascripts take 182.9 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 20.3 kB

  • Original 27.4 kB
  • After minification 26.1 kB
  • After compression 7.1 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. 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 20.3 kB or 74% of the original size.

Image Optimization

-2%

Potential reduce by 2.2 kB

  • Original 97.2 kB
  • After minification 95.0 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. Szdaneng images are well optimized though.

JavaScript Optimization

-50%

Potential reduce by 91.3 kB

  • Original 182.9 kB
  • After minification 182.1 kB
  • After compression 91.6 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 91.3 kB or 50% of the original size.

CSS Optimization

-81%

Potential reduce by 14.9 kB

  • Original 18.3 kB
  • After minification 15.9 kB
  • After compression 3.5 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. Szdaneng.cn needs all CSS files to be minified and compressed as it can save up to 14.9 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (42%)

Requests Now

64

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Szdaneng. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

szdaneng.cn accessibility score

54

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

szdaneng.cn 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

szdaneng.cn 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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Szdaneng.cn 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 Szdaneng.cn main page’s claimed encoding is gb2312. 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 Szdaneng. 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: