Tools & Wizards About Us
sz-zk.en.alibaba.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 40

    Accessibility

    Visual factors better than
    that of 19% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

sz-zk.en.alibaba.com

Company Overview - Shenzhen Zheng Kang Technology Co., Ltd.

Page Load Speed

3.1 sec in total

First Response

26 ms

Resources Loaded

2.6 sec

Page Rendered

407 ms

sz-zk.en.alibaba.com screenshot

About Website

Visit sz-zk.en.alibaba.com now to see the best up-to-date Sz Zk En Alibaba content for China and also check out these interesting facts you probably never knew about sz-zk.en.alibaba.com

Shenzhen Zheng Kang Technology Co., Ltd. Products:Upper Arm Blood Pressure Monitors, Blood Glucose Meter, Pulse Oximeter, Medical Infrared Thermometer, Mesh Nebulizer

Visit sz-zk.en.alibaba.com

Key Findings

We analyzed Sz-zk.en.alibaba.com page load time and found that the first response time was 26 ms and then it took 3 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

sz-zk.en.alibaba.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value6.4 s

9/100

25%

SI (Speed Index)

Value9.3 s

12/100

10%

TBT (Total Blocking Time)

Value7,570 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.291

41/100

15%

TTI (Time to Interactive)

Value25.4 s

0/100

10%

Network Requests Diagram

sz-zk.en.alibaba.com

26 ms

sz-zk.en.alibaba.com

218 ms

116 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

99 ms

index.js

199 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Sz-zk.en.alibaba.com, 21% (8 requests) were made to S.alicdn.com and 15% (6 requests) were made to Sc02.alicdn.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Sc02.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 864.5 kB (26%)

Content Size

3.3 MB

After Optimization

2.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sz-zk.en.alibaba.com main page is 3.3 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. 35% of websites need less resources to load. Javascripts take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 310.9 kB

  • Original 387.5 kB
  • After minification 386.7 kB
  • After compression 76.5 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 310.9 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 7 B

  • Original 185.5 kB
  • After minification 185.5 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. Sz Zk En Alibaba images are well optimized though.

JavaScript Optimization

-20%

Potential reduce by 552.5 kB

  • Original 2.7 MB
  • After minification 2.7 MB
  • After compression 2.2 MB

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 552.5 kB or 20% of the original size.

CSS Optimization

-3%

Potential reduce by 1.0 kB

  • Original 35.8 kB
  • After minification 35.8 kB
  • After compression 34.8 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. Sz-zk.en.alibaba.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (54%)

Requests Now

37

After Optimization

17

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sz Zk En Alibaba. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sz-zk.en.alibaba.com

sz-zk.en.alibaba.com

26 ms

sz-zk.en.alibaba.com

sz-zk.en.alibaba.com

218 ms

116 ms

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

O1CN0153JdbU26g4bILVOyC_!!6000000007690-2-tps-418-58.png

99 ms

index.js

index.js

199 ms

index.js

index.js

114 ms

renderHeader.js

renderHeader.js

139 ms

H29b329a81493473da1a5c77b735a266d2.jpg

H29b329a81493473da1a5c77b735a266d2.jpg

819 ms

Hdef452c42d1d4792bc6dd2ceece14bd5R.jpg

Hdef452c42d1d4792bc6dd2ceece14bd5R.jpg

2367 ms

HTB1PWlLXAxz61VjSZFt761DSVXag.png

HTB1PWlLXAxz61VjSZFt761DSVXag.png

409 ms

TB1JuFLkBBh1e4jSZFhXXcC9VXa-2477-841.jpg

TB1JuFLkBBh1e4jSZFhXXcC9VXa-2477-841.jpg

150 ms

0638c6e571cd4fa7b9b7c27844afd0fe

0638c6e571cd4fa7b9b7c27844afd0fe

1652 ms

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

45 ms

Hbce6489bd6d445d8887688379eafeaf5r.jpg

Hbce6489bd6d445d8887688379eafeaf5r.jpg

958 ms

H34aeb57f90e84cee9fd46f538b040c52F.jpg

H34aeb57f90e84cee9fd46f538b040c52F.jpg

1174 ms

TB19Bnzn_tYBeNjy1XdXXXXyVXa-1920-1200.png

TB19Bnzn_tYBeNjy1XdXXXXyVXa-1920-1200.png

392 ms

TB1kuhcgQyWBuNjy0FpXXassXXa-18-16.svg

TB1kuhcgQyWBuNjy0FpXXassXXa-18-16.svg

397 ms

TB1VjDmgQyWBuNjy0FpXXassXXa-46-46.svg

TB1VjDmgQyWBuNjy0FpXXassXXa-46-46.svg

396 ms

H76af9229612e4b26827dd5c64944b0ec6.jpg

H76af9229612e4b26827dd5c64944b0ec6.jpg

1460 ms

H975577232b1945d8bbfc31f924494cc15.jpg

H975577232b1945d8bbfc31f924494cc15.jpg

1373 ms

Hcc414e4ee103448990954f20bb931d20t.jpg

Hcc414e4ee103448990954f20bb931d20t.jpg

909 ms

H5ebbc40eff2846a4acb74f10919df27aw.jpg

H5ebbc40eff2846a4acb74f10919df27aw.jpg

1596 ms

H93e3459ff36b427496127ee4dc817ccct.jpg

H93e3459ff36b427496127ee4dc817ccct.jpg

1415 ms

awsc.js

awsc.js

94 ms

36 ms

7.gif

7.gif

33 ms

et_f.js

et_f.js

15 ms

um.js

um.js

145 ms

wu.json

wu.json

106 ms

um.json

um.json

53 ms

getUmid.do

getUmid.do

34 ms

eg.js

eg.js

7 ms

font_992356_jz8e219lwqi.css

font_992356_jz8e219lwqi.css

31 ms

normalize.css

normalize.css

28 ms

index.css

index.css

32 ms

mtoplib.min.js

mtoplib.min.js

32 ms

uploaded.js

uploaded.js

16 ms

index.js

index.js

86 ms

index.js

index.js

11 ms

Accessibility Review

sz-zk.en.alibaba.com accessibility score

40

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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

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

sz-zk.en.alibaba.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

sz-zk.en.alibaba.com 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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sz-zk.en.alibaba.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sz-zk.en.alibaba.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

sz-zk.en.alibaba.com

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