Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

citigroup.udemy.com

Online Courses - Learn Anything, On Your Schedule | Udemy

Page Load Speed

2.3 sec in total

First Response

69 ms

Resources Loaded

2.1 sec

Page Rendered

98 ms

citigroup.udemy.com screenshot

About Website

Welcome to citigroup.udemy.com homepage info - get ready to check Citigroup Udemy best content for India right away, or after learning these important things about citigroup.udemy.com

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

Visit citigroup.udemy.com

Key Findings

We analyzed Citigroup.udemy.com page load time and found that the first response time was 69 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

citigroup.udemy.com performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value29.4 s

0/100

10%

TBT (Total Blocking Time)

Value37,510 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.139

79/100

15%

TTI (Time to Interactive)

Value47.5 s

0/100

10%

Network Requests Diagram

login.fcc

69 ms

common.css

93 ms

citigroup_logo.gif

47 ms

signon_logo.gif

89 ms

citigroup_logo_small.gif

128 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that all of those requests were addressed to Citigroup.udemy.com and no external sources were called. The less responsive or slowest element that took the longest time to load (128 ms) relates to the external source Saml.citigroup.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 24.0 kB (73%)

Content Size

33.1 kB

After Optimization

9.1 kB

In fact, the total size of Citigroup.udemy.com main page is 33.1 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. CSS take 18.2 kB which makes up the majority of the site volume.

HTML Optimization

-71%

Potential reduce by 6.9 kB

  • Original 9.7 kB
  • After minification 7.5 kB
  • After compression 2.8 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 2.1 kB, which is 22% 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 6.9 kB or 71% of the original size.

Image Optimization

-22%

Potential reduce by 1.1 kB

  • Original 5.2 kB
  • After minification 4.0 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, Citigroup Udemy needs image optimization as it can save up to 1.1 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-88%

Potential reduce by 16.0 kB

  • Original 18.2 kB
  • After minification 13.0 kB
  • After compression 2.2 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. Citigroup.udemy.com needs all CSS files to be minified and compressed as it can save up to 16.0 kB or 88% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (58%)

Requests Now

12

After Optimization

5

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Citigroup Udemy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Accessibility Review

citigroup.udemy.com accessibility score

96

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Best Practices

citigroup.udemy.com best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

citigroup.udemy.com SEO score

82

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Document doesn't have a valid hreflang

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Citigroup.udemy.com 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 Citigroup.udemy.com main page’s claimed encoding is iso-8859-1. 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 Citigroup 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: