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

Report Summary

  • 23

    Performance

    Renders faster than
    41% 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

  • 86

    SEO

    Google-friendlier than
    60% of websites

sz-zk.en.alibaba.com

Shenzhen Zheng Kang Technology Co., Ltd. - Blood Pressure Monitor, Medical Infrared Thermometer

Page Load Speed

3.1 sec in total

First Response

217 ms

Resources Loaded

2.3 sec

Page Rendered

574 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., Experts in Manufacturing and Exporting Blood Pressure Monitor, Medical Infrared Thermometer and 0 more Products.

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 217 ms and then it took 2.9 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

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

69/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value10.9 s

6/100

10%

TBT (Total Blocking Time)

Value6,380 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.014

100/100

15%

TTI (Time to Interactive)

Value25.6 s

0/100

10%

Network Requests Diagram

sz-zk.en.alibaba.com

217 ms

sz-zk.en.alibaba.com

628 ms

76 ms

69 ms

header.css

75 ms

Our browser made a total of 78 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Sz-zk.en.alibaba.com, 44% (34 requests) were made to S.alicdn.com and 9% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (963 ms) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.6 MB (60%)

Content Size

5.9 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sz-zk.en.alibaba.com main page is 5.9 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. Only a small number of websites need less resources to load. Javascripts take 5.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 362.3 kB

  • Original 447.8 kB
  • After minification 443.9 kB
  • After compression 85.5 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 362.3 kB or 81% of the original size.

Image Optimization

-11%

Potential reduce by 8.9 kB

  • Original 78.4 kB
  • After minification 69.5 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. Obviously, Sz Zk En Alibaba needs image optimization as it can save up to 8.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-59%

Potential reduce by 3.0 MB

  • Original 5.1 MB
  • After minification 5.1 MB
  • After compression 2.1 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 3.0 MB or 59% of the original size.

CSS Optimization

-65%

Potential reduce by 203.9 kB

  • Original 316.1 kB
  • After minification 265.2 kB
  • After compression 112.2 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 needs all CSS files to be minified and compressed as it can save up to 203.9 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (64%)

Requests Now

67

After Optimization

24

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 67 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 29 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sz-zk.en.alibaba.com

sz-zk.en.alibaba.com

217 ms

sz-zk.en.alibaba.com

sz-zk.en.alibaba.com

628 ms

76 ms

69 ms

header.css

header.css

75 ms

header.js

header.js

132 ms

69 ms

web-index.css

web-index.css

70 ms

web-index.css

web-index.css

131 ms

web-index.css

web-index.css

74 ms

web-index.css

web-index.css

131 ms

web-index.css

web-index.css

132 ms

O1CN01KD2ycd23TlAhTEpWp_!!6000000007257-0-tps-3840-90.jpg

O1CN01KD2ycd23TlAhTEpWp_!!6000000007257-0-tps-3840-90.jpg

147 ms

188 ms

143 ms

index.js

index.js

144 ms

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

116 ms

HTB1PWlLXAxz61VjSZFt761DSVXag.png

HTB1PWlLXAxz61VjSZFt761DSVXag.png

187 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

29 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

29 ms

Hbce6489bd6d445d8887688379eafeaf5r.jpg

Hbce6489bd6d445d8887688379eafeaf5r.jpg

569 ms

H34aeb57f90e84cee9fd46f538b040c52F.jpg_q80.jpg

H34aeb57f90e84cee9fd46f538b040c52F.jpg_q80.jpg

579 ms

TB1JuFLkBBh1e4jSZFhXXcC9VXa-2477-841.jpg

TB1JuFLkBBh1e4jSZFhXXcC9VXa-2477-841.jpg

186 ms

roboto-regular.woff

roboto-regular.woff

71 ms

roboto-medium.woff

roboto-medium.woff

70 ms

roboto-light.woff

roboto-light.woff

88 ms

roboto-thin.woff

roboto-thin.woff

88 ms

roboto-bold.woff

roboto-bold.woff

88 ms

awsc.js

awsc.js

192 ms

80 ms

Hdef452c42d1d4792bc6dd2ceece14bd5R.jpg

Hdef452c42d1d4792bc6dd2ceece14bd5R.jpg

820 ms

94 ms

H29b329a81493473da1a5c77b735a266d2.jpg

H29b329a81493473da1a5c77b735a266d2.jpg

546 ms

H76af9229612e4b26827dd5c64944b0ec6.jpg

H76af9229612e4b26827dd5c64944b0ec6.jpg

703 ms

H975577232b1945d8bbfc31f924494cc15.jpg

H975577232b1945d8bbfc31f924494cc15.jpg

817 ms

Hcc414e4ee103448990954f20bb931d20t.jpg

Hcc414e4ee103448990954f20bb931d20t.jpg

544 ms

H5ebbc40eff2846a4acb74f10919df27aw.jpg

H5ebbc40eff2846a4acb74f10919df27aw.jpg

758 ms

H93e3459ff36b427496127ee4dc817ccct.jpg

H93e3459ff36b427496127ee4dc817ccct.jpg

310 ms

personTipsInfo.do

personTipsInfo.do

132 ms

eg.js

eg.js

118 ms

sc.globalxman.appscene

sc.globalxman.appscene

53 ms

27 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

26 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

50 ms

icon-font.woff

icon-font.woff

160 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

159 ms

footer.css

footer.css

26 ms

et_n.js

et_n.js

64 ms

um.js

um.js

134 ms

light0.5x.png

light0.5x.png

112 ms

pages_version.html

pages_version.html

321 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

82 ms

defer-common.js

defer-common.js

174 ms

i.alicdn.com

i.alicdn.com

176 ms

index.js

index.js

80 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

89 ms

index.js

index.js

223 ms

index.js

index.js

224 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

181 ms

7.gif

7.gif

29 ms

wu.json

wu.json

183 ms

store-proxy.html

store-proxy.html

136 ms

countryCurrencyDataService

countryCurrencyDataService

199 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

93 ms

personRoleInfo.do

personRoleInfo.do

94 ms

notification.do

notification.do

120 ms

index.js

index.js

68 ms

baxiaCommon.js

baxiaCommon.js

24 ms

rp

rp

963 ms

index.web.css

index.web.css

25 ms

index.web.js

index.web.js

42 ms

index.js

index.js

110 ms

availableSurveyQuery.json

availableSurveyQuery.json

60 ms

um.json

um.json

61 ms

iconfont.woff

iconfont.woff

19 ms

iconfont.woff

iconfont.woff

11 ms

index.css

index.css

23 ms

getUmid.do

getUmid.do

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

86

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

High

Document doesn't have a valid hreflang

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: