Report Summary

  • 21

    Performance

    Renders faster than
    40% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

chinasensor.cn

防腐/铠装热电偶/热电阻,双金属温度计-北京中仪华世技术有限公司

Page Load Speed

78.9 sec in total

First Response

2.4 sec

Resources Loaded

76 sec

Page Rendered

509 ms

chinasensor.cn screenshot

About Website

Visit chinasensor.cn now to see the best up-to-date Chinasensor content for China and also check out these interesting facts you probably never knew about chinasensor.cn

北京中仪华世技术有限公司位于北京仪器仪表基地,是集研制、开发、生产、贸易和服务的新型企业,有着温度传感器,热电偶,热电阻,双金属温度计等技术和工业自动控制技术;是传感器及自动化控制、智能仪器仪表制造商。

Visit chinasensor.cn

Key Findings

We analyzed Chinasensor.cn page load time and found that the first response time was 2.4 sec and then it took 76.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there were 11 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

chinasensor.cn performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.3 s

1/100

10%

LCP (Largest Contentful Paint)

Value10.2 s

0/100

25%

SI (Speed Index)

Value19.2 s

0/100

10%

TBT (Total Blocking Time)

Value500 ms

58/100

30%

CLS (Cumulative Layout Shift)

Value0.499

16/100

15%

TTI (Time to Interactive)

Value15.6 s

7/100

10%

Network Requests Diagram

chinasensor.cn

2377 ms

www.chinasensor.cn

8536 ms

newstyle.css

785 ms

css.css

860 ms

cgq2012.css

3123 ms

Our browser made a total of 214 requests to load all elements on the main page. We found that 96% of them (205 requests) were addressed to the original Chinasensor.cn, 1% (3 requests) were made to Bdimg.share.baidu.com and 1% (2 requests) were made to Hm.baidu.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Chinasensor.cn.

Page Optimization Overview & Recommendations

Page size can be reduced by 294.2 kB (30%)

Content Size

980.3 kB

After Optimization

686.1 kB

In fact, the total size of Chinasensor.cn main page is 980.3 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 752.3 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 110.7 kB

  • Original 135.8 kB
  • After minification 131.0 kB
  • After compression 25.1 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 110.7 kB or 82% of the original size.

Image Optimization

-16%

Potential reduce by 117.1 kB

  • Original 752.3 kB
  • After minification 635.1 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, Chinasensor needs image optimization as it can save up to 117.1 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-63%

Potential reduce by 32.5 kB

  • Original 51.5 kB
  • After minification 49.3 kB
  • After compression 19.1 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 32.5 kB or 63% of the original size.

CSS Optimization

-83%

Potential reduce by 33.9 kB

  • Original 40.7 kB
  • After minification 34.4 kB
  • After compression 6.8 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. Chinasensor.cn needs all CSS files to be minified and compressed as it can save up to 33.9 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (12%)

Requests Now

199

After Optimization

176

The browser has sent 199 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chinasensor. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

chinasensor.cn accessibility score

52

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

High

Links do not have a discernible name

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

chinasensor.cn best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

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

chinasensor.cn SEO score

83

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 uses legible font sizes

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chinasensor.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Chinasensor.cn main page’s claimed encoding is gb2312. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Chinasensor. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: