Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

chinaoptic.com.cn

光学精密机械网 - 生活学习互助

Page Load Speed

11.7 sec in total

First Response

2.1 sec

Resources Loaded

9.3 sec

Page Rendered

329 ms

chinaoptic.com.cn screenshot

About Website

Welcome to chinaoptic.com.cn homepage info - get ready to check Chinaoptic best content for China right away, or after learning these important things about chinaoptic.com.cn

光学精密机械网是集光学,机械和电子技术及资讯的综合网站,并提供光学软件,机械软件等下载.

Visit chinaoptic.com.cn

Key Findings

We analyzed Chinaoptic.com.cn page load time and found that the first response time was 2.1 sec and then it took 9.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

chinaoptic.com.cn performance score

0

Network Requests Diagram

chinaoptic.com.cn

2065 ms

css.css

674 ms

js.js

722 ms

main.css

429 ms

index.css

671 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 79% of them (31 requests) were addressed to the original Chinaoptic.com.cn, 5% (2 requests) were made to Google-analytics.com and 3% (1 request) were made to Js.users.51.la. The less responsive or slowest element that took the longest time to load (4.4 sec) relates to the external source Js.users.51.la.

Page Optimization Overview & Recommendations

Page size can be reduced by 112.4 kB (57%)

Content Size

198.3 kB

After Optimization

85.9 kB

In fact, the total size of Chinaoptic.com.cn main page is 198.3 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. Only 10% of websites need less resources to load. HTML takes 88.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 72.5 kB

  • Original 88.1 kB
  • After minification 85.6 kB
  • After compression 15.6 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 72.5 kB or 82% of the original size.

Image Optimization

-0%

Potential reduce by 32 B

  • Original 51.6 kB
  • After minification 51.5 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. Chinaoptic images are well optimized though.

JavaScript Optimization

-46%

Potential reduce by 9.0 kB

  • Original 19.4 kB
  • After minification 19.4 kB
  • After compression 10.4 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 9.0 kB or 46% of the original size.

CSS Optimization

-79%

Potential reduce by 30.9 kB

  • Original 39.2 kB
  • After minification 28.4 kB
  • After compression 8.3 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. Chinaoptic.com.cn needs all CSS files to be minified and compressed as it can save up to 30.9 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (66%)

Requests Now

32

After Optimization

11

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chinaoptic. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

SEO Factors

chinaoptic.com.cn SEO score

0

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    ZH

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chinaoptic.com.cn can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that Chinaoptic.com.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 Chinaoptic. 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: