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

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

winsensor.en.alibaba.com

Zhengzhou Winsen Electronics Technology Co., Ltd. - air quality sensor, gas sensors

Page Load Speed

6.3 sec in total

First Response

82 ms

Resources Loaded

5.5 sec

Page Rendered

736 ms

winsensor.en.alibaba.com screenshot

About Website

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

Zhengzhou Winsen Electronics Technology Co., Ltd., Experts in Manufacturing and Exporting air quality sensor, gas sensors and 0 more Products.

Visit winsensor.en.alibaba.com

Key Findings

We analyzed Winsensor.en.alibaba.com page load time and found that the first response time was 82 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

winsensor.en.alibaba.com performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.5 s

67/100

10%

LCP (Largest Contentful Paint)

Value2.7 s

84/100

25%

SI (Speed Index)

Value15.2 s

1/100

10%

TBT (Total Blocking Time)

Value5,130 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.719

6/100

15%

TTI (Time to Interactive)

Value27.9 s

0/100

10%

Network Requests Diagram

winsensor.en.alibaba.com

82 ms

winsensor.en.alibaba.com

906 ms

62 ms

56 ms

header.css

58 ms

Our browser made a total of 133 requests to load all elements on the main page. We found that 2% of them (2 requests) were addressed to the original Winsensor.en.alibaba.com, 71% (95 requests) were made to S.alicdn.com and 5% (7 requests) were made to Assets.alicdn.com. The less responsive or slowest element that took the longest time to load (2.6 sec) relates to the external source S.alicdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 4.5 MB (64%)

Content Size

7.1 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Winsensor.en.alibaba.com main page is 7.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Javascripts take 5.3 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 882.8 kB

  • Original 1.0 MB
  • After minification 1.0 MB
  • After compression 144.7 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 882.8 kB or 86% of the original size.

Image Optimization

-43%

Potential reduce by 177.2 kB

  • Original 413.3 kB
  • After minification 236.1 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, Winsen Sor En Alibaba needs image optimization as it can save up to 177.2 kB or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 3.2 MB

  • Original 5.3 MB
  • After minification 5.3 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 3.2 MB or 61% of the original size.

CSS Optimization

-72%

Potential reduce by 284.3 kB

  • Original 396.6 kB
  • After minification 345.7 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. Winsensor.en.alibaba.com needs all CSS files to be minified and compressed as it can save up to 284.3 kB or 72% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (35%)

Requests Now

122

After Optimization

79

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Winsen Sor 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

winsensor.en.alibaba.com

winsensor.en.alibaba.com

82 ms

winsensor.en.alibaba.com

winsensor.en.alibaba.com

906 ms

62 ms

56 ms

header.css

header.css

58 ms

header.js

header.js

123 ms

473 ms

web-index.css

web-index.css

59 ms

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124 ms

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158 ms

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123 ms

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159 ms

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185 ms

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126 ms

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491 ms

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517 ms

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988 ms

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828 ms

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1517 ms

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1767 ms

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243 ms

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1983 ms

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178 ms

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187 ms

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1601 ms

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2145 ms

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7 ms

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Accessibility Review

winsensor.en.alibaba.com accessibility score

68

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

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

winsensor.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

winsensor.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 Winsensor.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 Winsensor.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

winsensor.en.alibaba.com

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