Report Summary

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    Best Practices

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DjangoGirls (@djangogirls) on GitBook · GitBook (Legacy)

Page Load Speed

1.2 sec in total

First Response

83 ms

Resources Loaded

913 ms

Page Rendered

204 ms screenshot

About Website

Visit now to see the best up-to-date Django Girls Git Book S content for China and also check out these interesting facts you probably never knew about

Books written by DjangoGirls (@djangogirls). Django Girls is a free workshop for women who want to start programming in Python and Django.


Key Findings

We analyzed page load time and found that the first response time was 83 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics performance score


Network Requests Diagram

83 ms


159 ms


15 ms


28 ms


110 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 4% of them (1 request) were addressed to the original, 22% (6 requests) were made to and 19% (5 requests) were made to The less responsive or slowest element that took the longest time to load (441 ms) relates to the external source

Page Optimization Overview & Recommendations

Page size can be reduced by 381.5 kB (38%)

Content Size

995.0 kB

After Optimization

613.5 kB

In fact, the total size of main page is 995.0 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. 25% of websites need less resources to load. Images take 548.0 kB which makes up the majority of the site volume.

HTML Optimization


Potential reduce by 26.4 kB

  • Original 34.1 kB
  • After minification 27.3 kB
  • After compression 7.7 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. This page needs HTML code to be minified as it can gain 6.8 kB, which is 20% 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 26.4 kB or 77% of the original size.

Image Optimization


Potential reduce by 53.5 kB

  • Original 548.0 kB
  • After minification 494.5 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. Django Girls Git Book S images are well optimized though.

JavaScript Optimization


Potential reduce by 148.3 kB

  • Original 231.5 kB
  • After minification 231.5 kB
  • After compression 83.2 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 148.3 kB or 64% of the original size.

CSS Optimization


Potential reduce by 153.3 kB

  • Original 181.4 kB
  • After minification 180.5 kB
  • After compression 28.1 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 153.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (25%)

Requests Now


After Optimization


The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Django Girls Git Book S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 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 English is used on the page, and it matches the claimed language. Our system also found out that 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 data is detected on the main page of Django Girls Git Book S. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: