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iems.northwestern.edu screenshot

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

iems.northwestern.edu

Industrial Engineering & Management Sciences | Northwestern Engineering

Page Load Speed

2.8 sec in total

First Response

68 ms

Resources Loaded

1.8 sec

Page Rendered

955 ms

iems.northwestern.edu screenshot

About Website

Click here to check amazing Iems Northwestern content for United States. Otherwise, check out these important facts you probably never knew about iems.northwestern.edu

Industrial engineering innovates in the science of data-driven decision making in complex and uncertain environments. Learn more about about our degree programs and research.

Visit iems.northwestern.edu

Key Findings

We analyzed Iems.northwestern.edu page load time and found that the first response time was 68 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

iems.northwestern.edu performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value18.5 s

0/100

25%

SI (Speed Index)

Value14.0 s

1/100

10%

TBT (Total Blocking Time)

Value3,770 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.112

86/100

15%

TTI (Time to Interactive)

Value32.4 s

0/100

10%

Network Requests Diagram

iems.northwestern.edu

68 ms

107 ms

147 ms

normalize.css

24 ms

jquery-slick.css

48 ms

Our browser made a total of 77 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Iems.northwestern.edu, 62% (48 requests) were made to Mccormick.northwestern.edu and 14% (11 requests) were made to Common.northwestern.edu. The less responsive or slowest element that took the longest time to load (957 ms) relates to the external source Mccormick.northwestern.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 60.5 kB (2%)

Content Size

2.7 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Iems.northwestern.edu main page is 2.7 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. Images take 2.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 49.1 kB

  • Original 60.4 kB
  • After minification 58.4 kB
  • After compression 11.2 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 49.1 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 514 B

  • Original 2.2 MB
  • After minification 2.2 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. Iems Northwestern images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 5.9 kB

  • Original 269.6 kB
  • After minification 269.6 kB
  • After compression 263.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-5%

Potential reduce by 4.9 kB

  • Original 103.6 kB
  • After minification 103.6 kB
  • After compression 98.7 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. Iems.northwestern.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 36 (57%)

Requests Now

63

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 63 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Iems Northwestern. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

iems.northwestern.edu

iems.northwestern.edu

68 ms

107 ms

147 ms

normalize.css

normalize.css

24 ms

jquery-slick.css

jquery-slick.css

48 ms

default.css

default.css

98 ms

layout.css

layout.css

118 ms

full-width.css

full-width.css

99 ms

home.css

home.css

89 ms

dept-2019.css

dept-2019.css

94 ms

jquery-2.1.0.min.js

jquery-2.1.0.min.js

161 ms

modernizr.js

modernizr.js

170 ms

jquery-footable.min.js

jquery-footable.min.js

296 ms

breakpoints.js

breakpoints.js

169 ms

lazysizes.min.js

lazysizes.min.js

296 ms

department-2019.js

department-2019.js

345 ms

jquery-slick-1.3.6.js

jquery-slick-1.3.6.js

344 ms

restive.min.js

restive.min.js

344 ms

video-helpers.1.1.js

video-helpers.1.1.js

344 ms

full-width.js

full-width.js

343 ms

jquery.validate-form.js

jquery.validate-form.js

344 ms

jquery.fitvids.js

jquery.fitvids.js

451 ms

mti-tracking.js

mti-tracking.js

451 ms

gtm.js

gtm.js

327 ms

arrow-down-white.svg

arrow-down-white.svg

437 ms

northwestern-logo-global-nav.svg

northwestern-logo-global-nav.svg

300 ms

stitch-short.png

stitch-short.png

300 ms

engineering-logo.svg

engineering-logo.svg

291 ms

jorge-nocedal-awarded-john-von-neumann-prize-by-the-society-for-industrial-and-applied-mathematics-rotation.jpg

jorge-nocedal-awarded-john-von-neumann-prize-by-the-society-for-industrial-and-applied-mathematics-rotation.jpg

460 ms

grad-spotlight-how-julia-azevedo-and-swe-benefited-from-each-other-rotation.jpg

grad-spotlight-how-julia-azevedo-and-swe-benefited-from-each-other-rotation.jpg

460 ms

noshir-contractor-named-executive-director-of-web-science-trust-rotation.jpg

noshir-contractor-named-executive-director-of-web-science-trust-rotation.jpg

461 ms

industrial-engineering-welcomes-minshuo-chen-as-assistant-professor-rotation.jpg

industrial-engineering-welcomes-minshuo-chen-as-assistant-professor-rotation.jpg

409 ms

divider-dashed.png

divider-dashed.png

406 ms

icon_chicago.svg

icon_chicago.svg

406 ms

icon_cluster.svg

icon_cluster.svg

425 ms

research-background.jpg

research-background.jpg

957 ms

klabjan-diego.jpg

klabjan-diego.jpg

415 ms

nocedal-jorge.jpg

nocedal-jorge.jpg

475 ms

wilson-jill.jpg

wilson-jill.jpg

481 ms

iravani-seyed.jpg

iravani-seyed.jpg

496 ms

mehrotra-sanjay.jpg

mehrotra-sanjay.jpg

494 ms

whole-brain.jpg

whole-brain.jpg

552 ms

stitch-short-white.png

stitch-short-white.png

549 ms

northwestern-logo.svg

northwestern-logo.svg

550 ms

arrows-nav-docs.svg

arrows-nav-docs.svg

561 ms

footer-social.svg

footer-social.svg

558 ms

search-purple.svg

search-purple.svg

413 ms

arrow-down-ltpurple.svg

arrow-down-ltpurple.svg

411 ms

bullet.png

bullet.png

457 ms

slashes-purple-bg.gif

slashes-purple-bg.gif

551 ms

AkkuratProRegular.woff

AkkuratProRegular.woff

500 ms

AkkuratProBold.woff

AkkuratProBold.woff

499 ms

CamptonBook.woff

CamptonBook.woff

350 ms

CamptonBold.woff

CamptonBold.woff

334 ms

CamptonExtraBold.woff

CamptonExtraBold.woff

417 ms

CamptonExtraLight.woff

CamptonExtraLight.woff

418 ms

pfdinstencil-light.woff

pfdinstencil-light.woff

432 ms

ga.js

ga.js

78 ms

left-dept.svg

left-dept.svg

201 ms

ajax-loader.gif

ajax-loader.gif

197 ms

trackingCode.js

trackingCode.js

70 ms

evloI6b6lAQ

evloI6b6lAQ

48 ms

SX-PCO1e8Co

SX-PCO1e8Co

50 ms

slick.woff

slick.woff

174 ms

__utm.gif

__utm.gif

26 ms

__utm.gif

__utm.gif

26 ms

evloI6b6lAQ

evloI6b6lAQ

125 ms

SX-PCO1e8Co

SX-PCO1e8Co

103 ms

collect

collect

77 ms

www-player.css

www-player.css

34 ms

www-embed-player.js

www-embed-player.js

60 ms

base.js

base.js

121 ms

ad_status.js

ad_status.js

375 ms

jBgyfngz26SfxQlNiQ6GVTB7xNcGg8C7SFNQ47_uFL0.js

jBgyfngz26SfxQlNiQ6GVTB7xNcGg8C7SFNQ47_uFL0.js

243 ms

embed.js

embed.js

152 ms

layout-print.css

layout-print.css

55 ms

id

id

37 ms

Accessibility Review

iems.northwestern.edu accessibility score

97

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

iems.northwestern.edu best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

iems.northwestern.edu 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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Iems.northwestern.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 Iems.northwestern.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

iems.northwestern.edu

Open Graph description is not detected on the main page of Iems Northwestern. 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: