Report Summary

  • 53

    Performance

    Renders faster than
    71% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

emph.columbia.edu

Executive Management Programs (EXEC) | Columbia University Mailman School of Public Health

Page Load Speed

1.1 sec in total

First Response

24 ms

Resources Loaded

684 ms

Page Rendered

373 ms

emph.columbia.edu screenshot

About Website

Visit emph.columbia.edu now to see the best up-to-date Emph Columbia content for United States and also check out these interesting facts you probably never knew about emph.columbia.edu

Master of Health Administration & Master of Public Health Degrees offered by the Department of Health Policy & Management

Visit emph.columbia.edu

Key Findings

We analyzed Emph.columbia.edu page load time and found that the first response time was 24 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

emph.columbia.edu performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value4.8 s

66/100

10%

TBT (Total Blocking Time)

Value250 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.061

97/100

15%

TTI (Time to Interactive)

Value13.0 s

13/100

10%

Network Requests Diagram

emph.columbia.edu

24 ms

executive-masters-healthcare-management

188 ms

css_5Nf4qbunDZX65wkRaIoLm1Qa20Pe1lRWa8QiLwzfrEI.css

6 ms

css_7-Fb00Q0LBX87HTgeekpM3ji9StUfNS1yl0bPgukuGI.css

18 ms

css_ft0Fi6Iowg30Q9MBIb388hKZdjjEGcBeAKb6aLo1SWs.css

25 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Emph.columbia.edu, 88% (30 requests) were made to Mailman.columbia.edu and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (188 ms) relates to the external source Mailman.columbia.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 846.9 kB (34%)

Content Size

2.5 MB

After Optimization

1.7 MB

In fact, the total size of Emph.columbia.edu main page is 2.5 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. 55% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 22.9 kB

  • Original 30.0 kB
  • After minification 28.7 kB
  • After compression 7.1 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 22.9 kB or 76% of the original size.

Image Optimization

-4%

Potential reduce by 71.2 kB

  • Original 1.6 MB
  • After minification 1.5 MB

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. Emph Columbia images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 244.7 kB

  • Original 336.4 kB
  • After minification 261.5 kB
  • After compression 91.7 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 244.7 kB or 73% of the original size.

CSS Optimization

-90%

Potential reduce by 508.1 kB

  • Original 563.5 kB
  • After minification 560.7 kB
  • After compression 55.3 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. Emph.columbia.edu needs all CSS files to be minified and compressed as it can save up to 508.1 kB or 90% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (19%)

Requests Now

31

After Optimization

25

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Emph Columbia. 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.

Accessibility Review

emph.columbia.edu accessibility score

94

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.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

emph.columbia.edu best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

emph.columbia.edu SEO score

93

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

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 Emph.columbia.edu 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 Emph.columbia.edu 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 Emph Columbia. 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: