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chengzhanclock.en.alibaba.com screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

chengzhanclock.en.alibaba.com

Zhangzhou Cheng Zhan Electronic Co., Ltd.

Page Load Speed

3 sec in total

First Response

231 ms

Resources Loaded

2.4 sec

Page Rendered

302 ms

chengzhanclock.en.alibaba.com screenshot

About Website

Click here to check amazing Cheng Zhan Clock En Alibaba content for China. Otherwise, check out these important facts you probably never knew about chengzhanclock.en.alibaba.com

Zhangzhou Cheng Zhan Electronic Co., Ltd., Experts in Manufacturing and Exporting and 0 more Products.

Visit chengzhanclock.en.alibaba.com

Key Findings

We analyzed Chengzhanclock.en.alibaba.com page load time and found that the first response time was 231 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

chengzhanclock.en.alibaba.com performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value6,040 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.339

33/100

15%

TTI (Time to Interactive)

Value29.9 s

0/100

10%

Network Requests Diagram

chengzhanclock.en.alibaba.com

231 ms

chengzhanclock.en.alibaba.com

634 ms

65 ms

110 ms

header.css

104 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 3% of them (2 requests) were addressed to the original Chengzhanclock.en.alibaba.com, 46% (32 requests) were made to S.alicdn.com and 10% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (992 ms) relates to the external source Fourier.taobao.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.4 MB (59%)

Content Size

5.8 MB

After Optimization

2.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chengzhanclock.en.alibaba.com main page is 5.8 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 4.9 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 343.8 kB

  • Original 429.0 kB
  • After minification 425.1 kB
  • After compression 85.2 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 343.8 kB or 80% 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, Cheng Zhan Clock 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

-58%

Potential reduce by 2.9 MB

  • Original 4.9 MB
  • After minification 4.9 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 2.9 MB or 58% of the original size.

CSS Optimization

-64%

Potential reduce by 202.3 kB

  • Original 314.5 kB
  • After minification 263.7 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. Chengzhanclock.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 202.3 kB or 64% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (63%)

Requests Now

59

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cheng Zhan Clock 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

chengzhanclock.en.alibaba.com

chengzhanclock.en.alibaba.com

231 ms

chengzhanclock.en.alibaba.com

chengzhanclock.en.alibaba.com

634 ms

65 ms

110 ms

header.css

header.css

104 ms

header.js

header.js

108 ms

148 ms

web-index.css

web-index.css

104 ms

web-index.css

web-index.css

105 ms

web-index.css

web-index.css

151 ms

web-index.css

web-index.css

149 ms

web-index.css

web-index.css

151 ms

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

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

145 ms

164 ms

143 ms

index.js

index.js

144 ms

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

219 ms

H4bd8d4f11d524d308adea8c6116d48a5Y.jpg

H4bd8d4f11d524d308adea8c6116d48a5Y.jpg

327 ms

H3e4f0790ea224a6b8b984990eb3b69dbd.jpg

H3e4f0790ea224a6b8b984990eb3b69dbd.jpg

328 ms

H040603344d5148a58ac2ec9bfa318dc0F.jpg

H040603344d5148a58ac2ec9bfa318dc0F.jpg

151 ms

H67935ab50af94d94a68e71c51f05cc74o.jpg

H67935ab50af94d94a68e71c51f05cc74o.jpg

326 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

173 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

170 ms

154 ms

roboto-regular.woff

roboto-regular.woff

247 ms

roboto-medium.woff

roboto-medium.woff

147 ms

roboto-light.woff

roboto-light.woff

271 ms

roboto-thin.woff

roboto-thin.woff

517 ms

roboto-bold.woff

roboto-bold.woff

247 ms

personTipsInfo.do

personTipsInfo.do

232 ms

awsc.js

awsc.js

208 ms

158 ms

icon-font.woff

icon-font.woff

402 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

173 ms

127 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

124 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

132 ms

footer.css

footer.css

33 ms

eg.js

eg.js

97 ms

et_n.js

et_n.js

67 ms

um.js

um.js

139 ms

light0.5x.png

light0.5x.png

440 ms

pages_version.html

pages_version.html

399 ms

defer-common.js

defer-common.js

181 ms

i.alicdn.com

i.alicdn.com

353 ms

index.js

index.js

86 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

80 ms

sc.globalxman.appscene

sc.globalxman.appscene

90 ms

index.js

index.js

85 ms

index.js

index.js

257 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

244 ms

7.gif

7.gif

204 ms

wu.json

wu.json

248 ms

store-proxy.html

store-proxy.html

368 ms

countryCurrencyDataService

countryCurrencyDataService

351 ms

personRoleInfo.do

personRoleInfo.do

137 ms

notification.do

notification.do

318 ms

baxiaCommon.js

baxiaCommon.js

56 ms

rp

rp

992 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

53 ms

index.js

index.js

27 ms

index.js

index.js

385 ms

index.web.css

index.web.css

32 ms

index.web.js

index.web.js

45 ms

availableSurveyQuery.json

availableSurveyQuery.json

122 ms

um.json

um.json

86 ms

iconfont.woff

iconfont.woff

6 ms

iconfont.woff

iconfont.woff

5 ms

getUmid.do

getUmid.do

12 ms

index.css

index.css

373 ms

Accessibility Review

chengzhanclock.en.alibaba.com accessibility score

47

Accessibility Issues

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

Buttons do not have an accessible name

High

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

High

Image elements do not have [alt] attributes

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.

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

chengzhanclock.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

chengzhanclock.en.alibaba.com SEO score

71

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

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 doesn't use 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 Chengzhanclock.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 Chengzhanclock.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

chengzhanclock.en.alibaba.com

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