Access draft.railstutorial.org. Learn Web Development with Rails: Michael Hartl's Ruby on Rails Tutorial

www.railstutorial.org

925 ms

1197428788.js

188 ms

font-awesome.min.css

87 ms

css

133 ms

reading-98324c4b458671e880d44f225c71be40c13b2b700c97a7d2a011bf853f681dec.css

115 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Draft.railstutorial.org, 14% (10 requests) were made to Softcover.io and 10% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (947 ms) relates to the external source Softcover.s3.amazonaws.com.

Content Size

1.1 MB

After Optimization

520.3 kB

In fact, the total size of Draft.railstutorial.org main page is 1.1 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. Javascripts take 483.0 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 40.2 kB

Original 58.2 kB
After minification 57.8 kB
After compression 18.1 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 40.2 kB or 69% of the original size.

Image Optimization

-27%

Potential reduce by 108.1 kB

Original 393.8 kB
After minification 285.6 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, Draft Rails Tutorial needs image optimization as it can save up to 108.1 kB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-60%

Potential reduce by 289.4 kB

Original 483.0 kB
After minification 482.9 kB
After compression 193.6 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 289.4 kB or 60% of the original size.

CSS Optimization

-84%

Potential reduce by 120.6 kB

Original 143.6 kB
After minification 143.1 kB
After compression 23.0 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. Draft.railstutorial.org needs all CSS files to be minified and compressed as it can save up to 120.6 kB or 84% of the original size.

Requests Now

After Optimization

The browser has sent 64 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Draft Rails Tutorial. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.