Tools & Wizards About Us
apply.mailman.columbia.edu screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

apply.mailman.columbia.edu

Become a Student | Columbia University Mailman School of Public Health

Page Load Speed

4.4 sec in total

First Response

142 ms

Resources Loaded

3.9 sec

Page Rendered

386 ms

apply.mailman.columbia.edu screenshot

About Website

Click here to check amazing Apply Mailman Columbia content for United States. Otherwise, check out these important facts you probably never knew about apply.mailman.columbia.edu

Building on a legacy of academic excellence, our programs educate and train the public health leaders of tomorrow. 

Visit apply.mailman.columbia.edu

Key Findings

We analyzed Apply.mailman.columbia.edu page load time and found that the first response time was 142 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

apply.mailman.columbia.edu performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.2 s

3/100

10%

LCP (Largest Contentful Paint)

Value13.9 s

0/100

25%

SI (Speed Index)

Value11.8 s

4/100

10%

TBT (Total Blocking Time)

Value5,540 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.212

59/100

15%

TTI (Time to Interactive)

Value33.7 s

0/100

10%

Network Requests Diagram

become-student

142 ms

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14 ms

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22 ms

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208 ms

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41 ms

Our browser made a total of 54 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Apply.mailman.columbia.edu, 13% (7 requests) were made to Webbot.mainstay.com and 9% (5 requests) were made to Use.typekit.net. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Use.typekit.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 429.8 kB (10%)

Content Size

4.5 MB

After Optimization

4.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Apply.mailman.columbia.edu main page is 4.5 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. Only a small number of websites need less resources to load. Javascripts take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 227.7 kB

  • Original 280.7 kB
  • After minification 275.9 kB
  • After compression 52.9 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 227.7 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 2.5 kB

  • Original 191.1 kB
  • After minification 188.7 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. Apply Mailman Columbia images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 16.9 kB

  • Original 3.2 MB
  • After minification 3.2 MB
  • After compression 3.2 MB

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

-24%

Potential reduce by 182.7 kB

  • Original 746.0 kB
  • After minification 745.3 kB
  • After compression 563.3 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. Apply.mailman.columbia.edu needs all CSS files to be minified and compressed as it can save up to 182.7 kB or 24% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (74%)

Requests Now

47

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 47 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Apply Mailman 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 14 to 1 for JavaScripts and from 23 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

become-student

become-student

142 ms

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webchat.js

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Accessibility Review

apply.mailman.columbia.edu accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

apply.mailman.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

Missing source maps for large first-party JavaScript

SEO Factors

apply.mailman.columbia.edu SEO score

100

Search Engine Optimization Advices

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 Apply.mailman.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 Apply.mailman.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

apply.mailman.columbia.edu

Open Graph data is detected on the main page of Apply Mailman Columbia. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: