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

Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

tzone.en.alibaba.com

Company Overview - Tzone Digital Technology Co., Ltd.

Page Load Speed

2.2 sec in total

First Response

17 ms

Resources Loaded

2 sec

Page Rendered

253 ms

tzone.en.alibaba.com screenshot

About Website

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

Tzone Digital Technology Co., Ltd. Products:Temperature Data Logger/Wireless Temperature Gateway And Sensor/Transmitter/Food Thermometer

Visit tzone.en.alibaba.com

Key Findings

We analyzed Tzone.en.alibaba.com page load time and found that the first response time was 17 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

tzone.en.alibaba.com performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value17.0 s

0/100

10%

TBT (Total Blocking Time)

Value6,900 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.151

76/100

15%

TTI (Time to Interactive)

Value27.2 s

0/100

10%

Network Requests Diagram

tzone.en.alibaba.com

17 ms

tzone.en.alibaba.com

210 ms

33 ms

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

42 ms

index.js

80 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Tzone.en.alibaba.com, 38% (14 requests) were made to Sc04.alicdn.com and 24% (9 requests) were made to S.alicdn.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source Sc04.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 736.3 kB (42%)

Content Size

1.8 MB

After Optimization

1.0 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Tzone.en.alibaba.com main page is 1.8 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. 40% of websites need less resources to load. Javascripts take 1.3 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 343.7 kB

  • Original 426.1 kB
  • After minification 425.4 kB
  • After compression 82.4 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 343.7 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 7 B

  • Original 6.0 kB
  • After minification 6.0 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. Tzone En Alibaba images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 392.6 kB

  • Original 1.3 MB
  • After minification 1.3 MB
  • After compression 929.9 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 392.6 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (49%)

Requests Now

35

After Optimization

18

  • AJAX
  • Images
  • JavaScript

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tzone 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 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

tzone.en.alibaba.com

tzone.en.alibaba.com

17 ms

tzone.en.alibaba.com

tzone.en.alibaba.com

210 ms

33 ms

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

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

42 ms

index.js

index.js

80 ms

index.js

index.js

43 ms

renderHeader.js

renderHeader.js

79 ms

awsc.js

awsc.js

69 ms

13 ms

7.gif

7.gif

40 ms

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

TB1Ay1AVUz1gK0jSZLeXXb9kVXa-196-80.png

27 ms

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H01fbbf55e39e4d78bc6ffda14bc4dbaay.jpg

569 ms

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Hcab236aec0ac45db8cf9dbcbb4f6c27fh.jpg

799 ms

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H6c7a42a3900d4ae6b4b19dd29393df39h.jpg

202 ms

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H47e93132697949ad89b9d092d914b48cp.jpg

200 ms

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H7ce90556eeca44ebb89d3928622b7429W.jpg

201 ms

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Hba716b77defa436886c53cc896d8a529n.jpg

213 ms

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H67882c4f10694071b51b646b72ca3af0L.jpg

309 ms

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H23f8901e3b32401dac37b261c9425d25o.jpg

493 ms

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H03c9faba644a4defafcc9b809d9a6eceB.jpg

285 ms

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Hbf7ffe817a5a4b599c591e4283e534d3y.jpg

322 ms

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H23e3c7429a314c168535835f573712f2p.jpg

539 ms

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H46c5d9f544604cc18986030b39a1d062D.jpg

374 ms

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Hdb5056561ee44be088bfb027304918560.jpg

1719 ms

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Hdfb28622af2f40a5911f4316de5727a4b.jpg

781 ms

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He16ff3ed5b014386a3813683fe085ac6w.jpg

449 ms

H5d22c75d0ad649539f72d3153d1c1e67B.jpeg_100x100.jpeg

H5d22c75d0ad649539f72d3153d1c1e67B.jpeg_100x100.jpeg

455 ms

H22b19388652b4a57ba374369b3b680dc0.png_100x100.png

H22b19388652b4a57ba374369b3b680dc0.png_100x100.png

460 ms

Hce5c42612e464de3807b47e878eb2d9du.png_100x100.png

Hce5c42612e464de3807b47e878eb2d9du.png_100x100.png

463 ms

H86355ead42fc4a1ca4a45db2f16d2150r.jpg

H86355ead42fc4a1ca4a45db2f16d2150r.jpg

517 ms

et_n.js

et_n.js

85 ms

um.js

um.js

22 ms

wu.json

wu.json

723 ms

eg.js

eg.js

2 ms

um.json

um.json

52 ms

getUmid.do

getUmid.do

335 ms

index.js

index.js

8 ms

Accessibility Review

tzone.en.alibaba.com accessibility score

64

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

High

Some elements have a [tabindex] value greater than 0

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

tzone.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

tzone.en.alibaba.com SEO score

79

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

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 Tzone.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 Tzone.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

tzone.en.alibaba.com

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