Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

green.chem.cmu.edu

The Institute for Green Science

Page Load Speed

4.3 sec in total

First Response

864 ms

Resources Loaded

3.3 sec

Page Rendered

183 ms

green.chem.cmu.edu screenshot

About Website

Welcome to green.chem.cmu.edu homepage info - get ready to check Green Chem Cmu best content for United States right away, or after learning these important things about green.chem.cmu.edu

Learning Green - The online curriculum in Green Chemistry by Carnegie Mellon University

Visit green.chem.cmu.edu

Key Findings

We analyzed Green.chem.cmu.edu page load time and found that the first response time was 864 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

green.chem.cmu.edu performance score

0

Network Requests Diagram

green.chem.cmu.edu

864 ms

widgetkit.css

23 ms

style.css

44 ms

style.css

1044 ms

style.css

1045 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that all of those requests were addressed to Green.chem.cmu.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Green.chem.cmu.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 654.6 kB (56%)

Content Size

1.2 MB

After Optimization

512.7 kB

In fact, the total size of Green.chem.cmu.edu main page is 1.2 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. 35% of websites need less resources to load. Javascripts take 527.7 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 28.7 kB

  • Original 37.5 kB
  • After minification 32.9 kB
  • After compression 8.8 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 4.7 kB, which is 12% 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 28.7 kB or 77% of the original size.

Image Optimization

-34%

Potential reduce by 165.9 kB

  • Original 488.9 kB
  • After minification 323.0 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. Obviously, Green Chem Cmu needs image optimization as it can save up to 165.9 kB or 34% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-69%

Potential reduce by 365.9 kB

  • Original 527.7 kB
  • After minification 522.6 kB
  • After compression 161.8 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 365.9 kB or 69% of the original size.

CSS Optimization

-83%

Potential reduce by 94.1 kB

  • Original 113.3 kB
  • After minification 83.2 kB
  • After compression 19.2 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. Green.chem.cmu.edu needs all CSS files to be minified and compressed as it can save up to 94.1 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (61%)

Requests Now

69

After Optimization

27

The browser has sent 69 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Green Chem Cmu. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 27 to 1 for CSS and as a result speed up the page load time.

SEO Factors

green.chem.cmu.edu SEO score

0

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 Green.chem.cmu.edu 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 Green.chem.cmu.edu 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

Open Graph description is not detected on the main page of Green Chem Cmu. 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: