Tools & Wizards About Us

Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

www-origin.coursera.org

Coursera | Degrees, Certificates, & Free Online Courses

Page Load Speed

4.4 sec in total

First Response

1.2 sec

Resources Loaded

1.7 sec

Page Rendered

1.6 sec

About Website

Welcome to www-origin.coursera.org homepage info - get ready to check Www Origin Coursera best content for India right away, or after learning these important things about www-origin.coursera.org

Learn new job skills in online courses from industry leaders like Google, IBM, & Meta. Advance your career with top degrees from Michigan, Penn, Imperial & more.

Visit www-origin.coursera.org

Key Findings

We analyzed Www-origin.coursera.org page load time and found that the first response time was 1.2 sec and then it took 3.3 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

www-origin.coursera.org performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

77/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value12.1 s

4/100

10%

TBT (Total Blocking Time)

Value4,920 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value25.8 s

0/100

10%

Network Requests Diagram

www.coursera.org

1152 ms

allStyles.036607de29fb40504a66.css

87 ms

allStyles.036607de29fb40504a66.js

78 ms

en.app.d677e4f9ffc4735e5831.js

388 ms

CourseraLearners_C_Composition_Hillary_copy__3_.png

55 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Www-origin.coursera.org, 1% (1 request) were made to Coursera.org and 1% (1 request) were made to Browser.sentry-cdn.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Coursera.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 984.5 kB (45%)

Content Size

2.2 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Www-origin.coursera.org main page is 2.2 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 1.2 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 981.0 kB

  • Original 1.2 MB
  • After minification 1.2 MB
  • After compression 187.5 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 981.0 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 648 B

  • Original 348.8 kB
  • After minification 348.1 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. Www Origin Coursera images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 2.7 kB

  • Original 619.9 kB
  • After minification 619.8 kB
  • After compression 617.1 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 144 B

  • Original 29.4 kB
  • After minification 29.4 kB
  • After compression 29.2 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. Www-origin.coursera.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (31%)

Requests Now

68

After Optimization

47

  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Www Origin Coursera. 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.

Network Requests Diagram

Accessibility Review

www-origin.coursera.org accessibility score

98

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.

Best Practices

www-origin.coursera.org best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

www-origin.coursera.org SEO score

92

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

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Www-origin.coursera.org 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 Www-origin.coursera.org 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 Www Origin Coursera. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: