Tools & Wizards About Us
dztools.en.alibaba.com screenshot

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

dztools.en.alibaba.com

Jiangsu Dazhong Electron&Tools Co., Ltd. - laser level, coredless drill

Page Load Speed

2.8 sec in total

First Response

9 ms

Resources Loaded

2.4 sec

Page Rendered

344 ms

dztools.en.alibaba.com screenshot

About Website

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

Jiangsu Dazhong Electron&Tools Co., Ltd., Experts in Manufacturing and Exporting laser level, coredless drill and 0 more Products.

Visit dztools.en.alibaba.com

Key Findings

We analyzed Dztools.en.alibaba.com page load time and found that the first response time was 9 ms and then it took 2.8 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

dztools.en.alibaba.com performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

66/100

10%

LCP (Largest Contentful Paint)

Value2.8 s

83/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value3,990 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.206

60/100

15%

TTI (Time to Interactive)

Value26.0 s

0/100

10%

Network Requests Diagram

dztools.en.alibaba.com

9 ms

dztools.en.alibaba.com

620 ms

63 ms

105 ms

header.css

104 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Dztools.en.alibaba.com, 57% (48 requests) were made to S.alicdn.com and 8% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.2 MB (62%)

Content Size

3.5 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dztools.en.alibaba.com main page is 3.5 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. 65% of websites need less resources to load. Javascripts take 2.5 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 531.3 kB

  • Original 636.5 kB
  • After minification 632.5 kB
  • After compression 105.2 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 531.3 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 9.0 kB

  • Original 117.7 kB
  • After minification 108.7 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. Dz Tools En Alibaba images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 1.4 MB

  • Original 2.5 MB
  • After minification 2.5 MB
  • After compression 1.1 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 1.4 MB or 55% of the original size.

CSS Optimization

-89%

Potential reduce by 293.8 kB

  • Original 331.2 kB
  • After minification 280.4 kB
  • After compression 37.5 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. Dztools.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 293.8 kB or 89% of the original size.

Requests Breakdown

Number of requests can be reduced by 47 (64%)

Requests Now

73

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 73 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dz Tools 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 28 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dztools.en.alibaba.com

dztools.en.alibaba.com

9 ms

dztools.en.alibaba.com

dztools.en.alibaba.com

620 ms

63 ms

105 ms

header.css

header.css

104 ms

header.js

header.js

125 ms

248 ms

web-index.css

web-index.css

120 ms

web-index.css

web-index.css

119 ms

web-index.css

web-index.css

493 ms

web-index.css

web-index.css

121 ms

web-index.css

web-index.css

117 ms

172 ms

101 ms

index.js

index.js

143 ms

138 ms

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

TB1VtZtebH1gK0jSZFwXXc7aXXa-65-70.gif

68 ms

HTB1C.yTdGzB9uJjSZFMq6xq4XXat.jpg

HTB1C.yTdGzB9uJjSZFMq6xq4XXat.jpg

694 ms

HTB1R5PjXED.BuNjt_h7q6yNDVXa4.jpg_80x80.jpg

HTB1R5PjXED.BuNjt_h7q6yNDVXa4.jpg_80x80.jpg

399 ms

TB1xVPje3MPMeJjy1XdXXasrXXa-1200-350.jpg

TB1xVPje3MPMeJjy1XdXXasrXXa-1200-350.jpg

1527 ms

Hfe2b146083664952b44e106e40f4b6454.jpg_480x480.jpg

Hfe2b146083664952b44e106e40f4b6454.jpg_480x480.jpg

555 ms

HTB1FGBZd8Kw3KVjSZFOq6yrDVXaQ.jpg_480x480.jpg

HTB1FGBZd8Kw3KVjSZFOq6yrDVXaQ.jpg_480x480.jpg

382 ms

He2617c2708374f2c9c5de168e6ab66706.jpg_480x480.jpg

He2617c2708374f2c9c5de168e6ab66706.jpg_480x480.jpg

793 ms

HTB1f88yosrI8KJjy0Fhq6zfnpXat.jpg_480x480.jpg

HTB1f88yosrI8KJjy0Fhq6zfnpXat.jpg_480x480.jpg

904 ms

H44dac33254a6426a93c6093894deebe5x.png_480x480.png

H44dac33254a6426a93c6093894deebe5x.png_480x480.png

488 ms

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

TB1QhYprKT2gK0jSZFvXXXnFXXa-20-20.png

67 ms

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

TB1hVGkvVP7gK0jSZFjXXc5aXXa-365-49.svg

506 ms

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

TB1mHDTXMaH3KVjSZFpXXbhKpXa-600-400.png

525 ms

personTipsInfo.do

personTipsInfo.do

25 ms

awsc.js

awsc.js

80 ms

54 ms

roboto-regular.woff

roboto-regular.woff

384 ms

roboto-medium.woff

roboto-medium.woff

438 ms

roboto-light.woff

roboto-light.woff

407 ms

roboto-thin.woff

roboto-thin.woff

437 ms

roboto-bold.woff

roboto-bold.woff

453 ms

eg.js

eg.js

31 ms

et_n.js

et_n.js

62 ms

um.js

um.js

41 ms

7.gif

7.gif

86 ms

index.js

index.js

103 ms

index.js

index.js

172 ms

wu.json

wu.json

79 ms

Hfabe68d2507a42838ca8aae1ebb01262w.jpg

Hfabe68d2507a42838ca8aae1ebb01262w.jpg

469 ms

baxiaCommon.js

baxiaCommon.js

56 ms

rp

rp

987 ms

TB1qeleveL2gK0jSZPhXXahvXXa-1920-280.png

TB1qeleveL2gK0jSZPhXXahvXXa-1920-280.png

276 ms

HTB1R5PjXED.BuNjt_h7q6yNDVXa4.jpg_80x80.jpg

HTB1R5PjXED.BuNjt_h7q6yNDVXa4.jpg_80x80.jpg

237 ms

H008e3ad064344d51a33726ba1e420b15d.jpg

H008e3ad064344d51a33726ba1e420b15d.jpg

1356 ms

Hb9a112d54b3c4f08a50ca1c902326653k.jpg

Hb9a112d54b3c4f08a50ca1c902326653k.jpg

724 ms

HTB1oiEkKSzqK1RjSZPxq6A4tVXaM.jpg

HTB1oiEkKSzqK1RjSZPxq6A4tVXaM.jpg

312 ms

HTB1FGBZd8Kw3KVjSZFOq6yrDVXaQ.jpg_480x480.jpg

HTB1FGBZd8Kw3KVjSZFOq6yrDVXaQ.jpg_480x480.jpg

321 ms

Had476b6e8f1749cc9376070a3612d3d0C.jpg

Had476b6e8f1749cc9376070a3612d3d0C.jpg

1028 ms

HTB1dSz3bTZmx1VjSZFGq6yx2XXa6.jpg

HTB1dSz3bTZmx1VjSZFGq6yx2XXa6.jpg

1141 ms

H208681b66fe64a1b91f8f35f7e5085a16.jpg

H208681b66fe64a1b91f8f35f7e5085a16.jpg

1355 ms

H3a21454c66a848db80e9fa3e77d2e49ac.jpg

H3a21454c66a848db80e9fa3e77d2e49ac.jpg

1029 ms

H2266ae2cffa7446fb9f76263101ce626w.jpg

H2266ae2cffa7446fb9f76263101ce626w.jpg

1113 ms

Hc100480a31d242a1ae0029f8121e4d2aP.jpg

Hc100480a31d242a1ae0029f8121e4d2aP.jpg

1355 ms

H07f792533f264c4aa3fbe3614d84d834W.jpg

H07f792533f264c4aa3fbe3614d84d834W.jpg

346 ms

157 ms

icon-font.woff

icon-font.woff

1082 ms

font_515771_xjdbujl2iu.woff

font_515771_xjdbujl2iu.woff

58 ms

um.json

um.json

57 ms

getUmid.do

getUmid.do

87 ms

sc.globalxman.appscene

sc.globalxman.appscene

14 ms

footer.css

footer.css

835 ms

light0.5x.png

light0.5x.png

39 ms

pages_version.html

pages_version.html

166 ms

sc.sc_header_footer.schd_coms

sc.sc_header_footer.schd_coms

14 ms

defer-common.js

defer-common.js

46 ms

i.alicdn.com

i.alicdn.com

163 ms

index.js

index.js

16 ms

need_show_cookie_setting.do

need_show_cookie_setting.do

125 ms

store-proxy.html

store-proxy.html

93 ms

countryCurrencyDataService

countryCurrencyDataService

109 ms

sc.sc_header_footer.sc_hds

sc.sc_header_footer.sc_hds

79 ms

personRoleInfo.do

personRoleInfo.do

87 ms

notification.do

notification.do

149 ms

index.web.css

index.web.css

137 ms

index.web.js

index.web.js

20 ms

index.js

index.js

79 ms

availableSurveyQuery.json

availableSurveyQuery.json

56 ms

iconfont.woff

iconfont.woff

22 ms

iconfont.woff

iconfont.woff

13 ms

Accessibility Review

dztools.en.alibaba.com accessibility score

69

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.

Best Practices

dztools.en.alibaba.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

High

Missing source maps for large first-party JavaScript

SEO Factors

dztools.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 Dztools.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 Dztools.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

dztools.en.alibaba.com

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