Report Summary

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    Best Practices

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Page Load Speed

100.7 sec in total

First Response

8.4 sec

Resources Loaded

91.8 sec

Page Rendered

536 ms screenshot

About Website

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Key Findings

We analyzed page load time and found that the first response time was 8.4 sec and then it took 92.4 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 27 request timeouts, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics performance score


Network Requests Diagram


8393 ms


865 ms


8583 ms


3348 ms

941 ms

Our browser made a total of 256 requests to load all elements on the main page. We found that 7% of them (18 requests) were addressed to the original, 62% (159 requests) were made to and 14% (36 requests) were made to The less responsive or slowest element that took the longest time to load (20.3 sec) relates to the external source

Page Optimization Overview & Recommendations

Page size can be reduced by 631.8 kB (22%)

Content Size

2.9 MB

After Optimization

2.2 MB

In fact, the total size of main page is 2.9 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. 50% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 278.1 kB

  • Original 311.7 kB
  • After minification 199.4 kB
  • After compression 33.5 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. This page needs HTML code to be minified as it can gain 112.3 kB, which is 36% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 278.1 kB or 89% of the original size.

Image Optimization


Potential reduce by 88.2 kB

  • Original 2.1 MB
  • After minification 2.1 MB

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. Chemao images are well optimized though.

JavaScript Optimization


Potential reduce by 253.4 kB

  • Original 382.6 kB
  • After minification 370.1 kB
  • After compression 129.1 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 253.4 kB or 66% of the original size.

CSS Optimization


Potential reduce by 12.0 kB

  • Original 14.1 kB
  • After minification 14.1 kB
  • After compression 2.1 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. needs all CSS files to be minified and compressed as it can save up to 12.0 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 76 (35%)

Requests Now


After Optimization


The browser has sent 218 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemao. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and as a result speed up the page load time.

SEO Factors SEO score


Language and Encoding

  • Language Detected


  • Language Claimed


  • Encoding


Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 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 main page’s claimed encoding is gbk. 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 Chemao. 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: