Tools & Wizards About Us
sh-luck.com screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 54

    Accessibility

    Visual factors better than
    that of 23% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

sh-luck.com

特灵空调/麦克维尔空调_上海拉柯机电设备工程有限公司_商用中央空调经销商

Page Load Speed

33.3 sec in total

First Response

2.3 sec

Resources Loaded

30.7 sec

Page Rendered

177 ms

sh-luck.com screenshot

About Website

Welcome to sh-luck.com homepage info - get ready to check Sh Luck best content right away, or after learning these important things about sh-luck.com

上海拉柯机电为特灵空调/麦克维尔空调的授权经销商，为各类厂房、商业地产提供专业的商用中央空调解决方案,拥有10多年100多个大项目工程经验。

Visit sh-luck.com

Key Findings

We analyzed Sh-luck.com page load time and found that the first response time was 2.3 sec and then it took 30.9 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 were 2 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

sh-luck.com performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

8/100

25%

SI (Speed Index)

Value14.6 s

1/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.8 s

28/100

10%

Network Requests Diagram

index.html

2345 ms

base.css

1139 ms

index.css

1180 ms

indexflash.css

2481 ms

base.js

2505 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 92% of them (72 requests) were addressed to the original Sh-luck.com, 1% (1 request) were made to Code.jquery.com and 1% (1 request) were made to S15.cnzz.com. The less responsive or slowest element that took the longest time to load (19.8 sec) belongs to the original domain Sh-luck.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 110.4 kB (20%)

Content Size

564.7 kB

After Optimization

454.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sh-luck.com main page is 564.7 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. 25% of websites need less resources to load. Images take 508.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 17.1 kB

  • Original 22.6 kB
  • After minification 21.2 kB
  • After compression 5.5 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 17.1 kB or 76% of the original size.

Image Optimization

-14%

Potential reduce by 69.2 kB

  • Original 508.9 kB
  • After minification 439.8 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, Sh Luck needs image optimization as it can save up to 69.2 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 13.4 kB

  • Original 19.7 kB
  • After minification 17.6 kB
  • After compression 6.3 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 13.4 kB or 68% of the original size.

CSS Optimization

-80%

Potential reduce by 10.7 kB

  • Original 13.5 kB
  • After minification 10.3 kB
  • After compression 2.7 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. Sh-luck.com needs all CSS files to be minified and compressed as it can save up to 10.7 kB or 80% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (23%)

Requests Now

73

After Optimization

56

  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sh Luck. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

index.html

index.html

2345 ms

base.css

base.css

1139 ms

index.css

index.css

1180 ms

indexflash.css

indexflash.css

2481 ms

base.js

base.js

2505 ms

dropdown.js

dropdown.js

1694 ms

jquery-1.4.1.min.js

jquery-1.4.1.min.js

35 ms

jquery.cycle.js

jquery.cycle.js

3088 ms

slideshow.js

slideshow.js

1190 ms

stat.php

stat.php

2880 ms

htmlbg.png

htmlbg.png

409 ms

110.jpg

110.jpg

3075 ms

zx_footer_logo1.png

zx_footer_logo1.png

3073 ms

icp.jpg

icp.jpg

3114 ms

logo.gif

logo.gif

994 ms

ico_01.gif

ico_01.gif

492 ms

ico_search.gif

ico_search.gif

426 ms

ico_02.gif

ico_02.gif

491 ms

022.jpg

022.jpg

7350 ms

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1-100G21A64H33.png

1598 ms

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3914 ms

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1-100G310163E61.png

7190 ms

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1-100G3102215H5.png

3515 ms

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1-100G3102640239.png

3456 ms

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1_092609304ET4.jpg

1988 ms

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1-100G310325cY.png

2766 ms

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3942 ms

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1-100G3103F9104.png

6893 ms

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6354 ms

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9807 ms

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1-100G3105221355.png

5526 ms

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1-100G3105433316.png

7527 ms

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1-100G310461B03.png

8464 ms

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1_0120142I14C9.jpg

8392 ms

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1-100G3105G23T.png

11607 ms

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9271 ms

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1-100G311060TW.png

9871 ms

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1-100G3110J9557.png

11555 ms

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1-100G31616330-L.png

9836 ms

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1-100G3110950K6.png

11775 ms

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1-100G3111Z1406.png

13551 ms

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1-100G3112110644.png

12127 ms

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1-100G3112323111.png

11860 ms

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1-1009261053050-L.png

15234 ms

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1-100G3113004Z4.png

19216 ms

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1-100G3115131H1.png

13315 ms

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1-100G3120051612.png

13097 ms

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1-100G3120TWb.png

15473 ms

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1-100G312100X02.png

14424 ms

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1_0926095403Sc.jpg

14223 ms

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1-100G31633430-L.png

14806 ms

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15758 ms

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14598 ms

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1-100G5115A40-L.png

18443 ms

1-100G51201320-L.png

1-100G51201320-L.png

19537 ms

stat.htm

stat.htm

710 ms

core.php

core.php

995 ms

1-100G51204340-L.png

1-100G51204340-L.png

17653 ms

mail.gif

mail.gif

13213 ms

9.gif

9.gif

893 ms

sgs.jpg

sgs.jpg

1255 ms

1_110311350c427.jpg

1_110311350c427.jpg

13315 ms

1-14121G40049-50-lp.jpg

1-14121G40049-50-lp.jpg

13512 ms

app.gif

app.gif

817 ms

1-1412161G522-lp.jpg

1-1412161G522-lp.jpg

15842 ms

1-110QR01S6-lp.jpg

1-110QR01S6-lp.jpg

14887 ms

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1-150112123944Q3.jpg

17743 ms

1-15052Q21P04T.jpg

1-15052Q21P04T.jpg

19779 ms

bg03.gif

bg03.gif

13027 ms

index_18.gif

index_18.gif

12813 ms

index_22.gif

index_22.gif

12824 ms

bg05.gif

bg05.gif

12882 ms

ico_03.gif

ico_03.gif

11966 ms

index_24.gif

index_24.gif

12098 ms

index_26.gif

index_26.gif

11468 ms

ico_04.gif

ico_04.gif

11092 ms

index_67.gif

index_67.gif

11116 ms

bg04.gif

bg04.gif

11820 ms

Accessibility Review

sh-luck.com accessibility score

54

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

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

sh-luck.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

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

sh-luck.com SEO score

89

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

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 Sh-luck.com 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 Sh-luck.com 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

sh-luck.com

Open Graph description is not detected on the main page of Sh Luck. 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: