Tools & Wizards About Us
shenling.cn screenshot

Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

shenling.cn

Air Conditioning Unit Manufacturer For Environmental Systems - SHEN LING

Page Load Speed

5.6 sec in total

First Response

695 ms

Resources Loaded

4.5 sec

Page Rendered

422 ms

shenling.cn screenshot

About Website

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

As a air conditioning unit manufacturer, SHEN LING can offer kinds of heating and air conditioning environmental systems for industrial, technological, commercial use.

Visit shenling.cn

Key Findings

We analyzed Shenling.cn page load time and found that the first response time was 695 ms and then it took 4.9 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

shenling.cn performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value8.5 s

18/100

10%

TBT (Total Blocking Time)

Value630 ms

47/100

30%

CLS (Cumulative Layout Shift)

Value0.486

17/100

15%

TTI (Time to Interactive)

Value11.5 s

18/100

10%

Network Requests Diagram

www.shenling.cn

695 ms

base

450 ms

base.css

344 ms

module.css

216 ms

253746

1351 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 60% of them (24 requests) were addressed to the original Shenling.cn, 18% (7 requests) were made to Img2062.weyesimg.com and 5% (2 requests) were made to Yasuo.weyesimg.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Shenling.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 55.2 kB (6%)

Content Size

953.7 kB

After Optimization

898.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Shenling.cn main page is 953.7 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. Images take 539.0 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 49.3 kB

  • Original 59.0 kB
  • After minification 39.5 kB
  • After compression 9.8 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 19.5 kB, which is 33% 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 49.3 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 1.1 kB

  • Original 539.0 kB
  • After minification 537.9 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. SHEN LING images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 212 B

  • Original 52.7 kB
  • After minification 52.7 kB
  • After compression 52.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 4.6 kB

  • Original 303.0 kB
  • After minification 302.9 kB
  • After compression 298.4 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. Shenling.cn has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (58%)

Requests Now

38

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 38 CSS, Javascripts, AJAX and image requests in order to completely render the main page of SHEN LING. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.shenling.cn

www.shenling.cn

695 ms

base

base

450 ms

base.css

base.css

344 ms

module.css

module.css

216 ms

253746

253746

1351 ms

arial.css

arial.css

1349 ms

base.js

base.js

353 ms

public_header_41.css

public_header_41.css

151 ms

swiper.min.css

swiper.min.css

232 ms

swiper.min.js

swiper.min.js

1427 ms

public_banner_56.css

public_banner_56.css

1410 ms

public_banner_20.css

public_banner_20.css

1405 ms

public_banner_17.css

public_banner_17.css

1405 ms

public_main_products_7.css

public_main_products_7.css

1404 ms

public_footer_20.css

public_footer_20.css

1393 ms

public_copyright_1.css

public_copyright_1.css

1381 ms

qrcode.js

qrcode.js

1397 ms

cs.ecqun.com

cs.ecqun.com

1397 ms

gtm.js

gtm.js

151 ms

15214254381036.jpg

15214254381036.jpg

919 ms

15217032629789.jpg

15217032629789.jpg

922 ms

ar.png

ar.png

206 ms

fr.png

fr.png

206 ms

pt.png

pt.png

539 ms

ru.png

ru.png

204 ms

es.png

es.png

565 ms

en.png

en.png

206 ms

authcode

authcode

445 ms

app-wehat.jpg

app-wehat.jpg

334 ms

app-tips.gif

app-tips.gif

268 ms

15214266011200.jpg

15214266011200.jpg

1152 ms

15214266035254.jpg

15214266035254.jpg

1153 ms

15214266056239.jpg

15214266056239.jpg

1053 ms

15214276983917.png

15214276983917.png

948 ms

15214277886283.jpg

15214277886283.jpg

889 ms

15214279447459.jpg

15214279447459.jpg

949 ms

analytics.js

analytics.js

191 ms

collect

collect

147 ms

collect

collect

36 ms

ga-audiences

ga-audiences

45 ms

Accessibility Review

shenling.cn accessibility score

59

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

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

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>).

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

shenling.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

shenling.cn SEO score

93

Search Engine Optimization Advices

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

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 Shenling.cn 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 Shenling.cn 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

shenling.cn

Open Graph data is detected on the main page of SHEN LING. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: