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Udemy is an online learning and teaching marketplace with over 185,000 courses and 49 million students. Learn programming, marketing, data science and more.

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udemy.info

307 ms

udemy.com

30 ms

www.udemy.com

38 ms

v1

26 ms

Our browser made a total of 4 requests to load all elements on the main page. We found that 25% of them (1 request) were addressed to the original Udemy.info, 75% (3 requests) were made to Udemy.com. The less responsive or slowest element that took the longest time to load (307 ms) belongs to the original domain Udemy.info.

Content Size

42.8 kB

After Optimization

34.0 kB

In fact, the total size of Udemy.info main page is 42.8 kB. This result falls within the top 5000 of lightweight and thus fast loading web pages. Only a small number of websites need less resources to load. CSS take 20.2 kB which makes up the majority of the site volume.

HTML Optimization

-57%

Potential reduce by 8.7 kB

Original 15.4 kB
After minification 15.4 kB
After compression 6.7 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. 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 8.7 kB or 57% of the original size.

JavaScript Optimization

-0%

Potential reduce by 33 B

Original 7.2 kB
After minification 7.2 kB
After compression 7.2 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

Original 20.2 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.

Requests Now

After Optimization

The browser has sent 1 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Udemy. According to our analytics all requests are already optimized.

Language and Encoding

Language Detected

Language Claimed

Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Udemy.info 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 Udemy.info 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 Udemy. 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: