Tools & Wizards About Us
mrsec.duke.edu screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

mrsec.duke.edu

Materials Discovery & Development | Duke Pratt School of Engineering

Page Load Speed

1.5 sec in total

First Response

97 ms

Resources Loaded

1.1 sec

Page Rendered

385 ms

mrsec.duke.edu screenshot

About Website

Visit mrsec.duke.edu now to see the best up-to-date Mrsec Duke content for United States and also check out these interesting facts you probably never knew about mrsec.duke.edu

Visit mrsec.duke.edu

Key Findings

We analyzed Mrsec.duke.edu page load time and found that the first response time was 97 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

mrsec.duke.edu performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

10/100

10%

LCP (Largest Contentful Paint)

Value10.4 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value1,760 ms

10/100

30%

CLS (Cumulative Layout Shift)

Value0.208

60/100

15%

TTI (Time to Interactive)

Value21.0 s

1/100

10%

Network Requests Diagram

mrsec.duke.edu

97 ms

49 ms

duke_audit.css

24 ms

sbi-styles.min.css

52 ms

style.min.css

102 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Mrsec.duke.edu, 73% (51 requests) were made to Pratt.duke.edu and 10% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (320 ms) relates to the external source Pratt.duke.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 276.6 kB (30%)

Content Size

934.0 kB

After Optimization

657.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Mrsec.duke.edu main page is 934.0 kB. 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 473.3 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 68.2 kB

  • Original 86.5 kB
  • After minification 78.0 kB
  • After compression 18.3 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 68.2 kB or 79% of the original size.

Image Optimization

-43%

Potential reduce by 202.1 kB

  • Original 473.3 kB
  • After minification 271.3 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, Mrsec Duke needs image optimization as it can save up to 202.1 kB or 43% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 1.9 kB

  • Original 316.5 kB
  • After minification 316.0 kB
  • After compression 314.6 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

-8%

Potential reduce by 4.5 kB

  • Original 57.7 kB
  • After minification 57.5 kB
  • After compression 53.2 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. Mrsec.duke.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 46 (77%)

Requests Now

60

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Mrsec Duke. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 30 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

mrsec.duke.edu

mrsec.duke.edu

97 ms

49 ms

duke_audit.css

duke_audit.css

24 ms

sbi-styles.min.css

sbi-styles.min.css

52 ms

style.min.css

style.min.css

102 ms

pratt-people-admin.css

pratt-people-admin.css

83 ms

index.css

index.css

106 ms

front.min.css

front.min.css

84 ms

jquery.min.js

jquery.min.js

105 ms

jquery-migrate.min.js

jquery-migrate.min.js

112 ms

accordion.js

accordion.js

112 ms

posts-year-filter.js

posts-year-filter.js

123 ms

page-header-play-button.js

page-header-play-button.js

128 ms

faculty-overview-toggle.js

faculty-overview-toggle.js

128 ms

header.js

header.js

130 ms

sidebar.js

sidebar.js

132 ms

social-share.js

social-share.js

145 ms

timeline.js

timeline.js

150 ms

counter.js

counter.js

150 ms

front.min.js

front.min.js

152 ms

pratt-people-public.js

pratt-people-public.js

154 ms

sidebarv2.js

sidebarv2.js

28 ms

alert.css

alert.css

162 ms

alert.html

alert.html

164 ms

new-tab.js

new-tab.js

227 ms

api.js

api.js

36 ms

dom-ready.min.js

dom-ready.min.js

227 ms

hooks.min.js

hooks.min.js

228 ms

i18n.min.js

i18n.min.js

228 ms

a11y.min.js

a11y.min.js

231 ms

jquery.json.min.js

jquery.json.min.js

231 ms

gravityforms.min.js

gravityforms.min.js

230 ms

utils.min.js

utils.min.js

230 ms

vendor-theme.min.js

vendor-theme.min.js

318 ms

scripts-theme.min.js

scripts-theme.min.js

317 ms

frontend-legacy.min.js

frontend-legacy.min.js

317 ms

ping

ping

44 ms

embed.js

embed.js

37 ms

css2

css2

32 ms

css2

css2

61 ms

gtm.js

gtm.js

182 ms

gtm.js

gtm.js

214 ms

sbi-sprite.png

sbi-sprite.png

100 ms

duke-pratt-navy-logo.png

duke-pratt-navy-logo.png

100 ms

down-caret.svg

down-caret.svg

126 ms

search.svg

search.svg

127 ms

arrow-midnight.svg

arrow-midnight.svg

124 ms

AdobeStock_615440931.jpeg

AdobeStock_615440931.jpeg

320 ms

arrow.svg

arrow.svg

126 ms

IMG_6216-scaled-e1706204519692-380x260.jpg

IMG_6216-scaled-e1706204519692-380x260.jpg

148 ms

voxel-finished-staples-760x520.jpg

voxel-finished-staples-760x520.jpg

194 ms

dalton-concrete-760x520.jpg

dalton-concrete-760x520.jpg

214 ms

duke-pratt-white-logo.png

duke-pratt-white-logo.png

145 ms

facebook.svg

facebook.svg

167 ms

instagram.svg

instagram.svg

170 ms

twitter.svg

twitter.svg

193 ms

youtube.svg

youtube.svg

195 ms

linkedin.svg

linkedin.svg

211 ms

map-marker.svg

map-marker.svg

213 ms

phone.svg

phone.svg

211 ms

duke-100-white.svg

duke-100-white.svg

215 ms

KFOmCnqEu92Fr1Me5Q.ttf

KFOmCnqEu92Fr1Me5Q.ttf

103 ms

KFOlCnqEu92Fr1MmEU9vAw.ttf

KFOlCnqEu92Fr1MmEU9vAw.ttf

114 ms

KFOlCnqEu92Fr1MmWUlvAw.ttf

KFOlCnqEu92Fr1MmWUlvAw.ttf

114 ms

u-4n0qyriQwlOrhSvowK_l52xwNpXw.ttf

u-4n0qyriQwlOrhSvowK_l52xwNpXw.ttf

22 ms

KFOkCnqEu92Fr1Mu52xP.ttf

KFOkCnqEu92Fr1Mu52xP.ttf

21 ms

KFOjCnqEu92Fr1Mu51S7ABc9.ttf

KFOjCnqEu92Fr1Mu51S7ABc9.ttf

21 ms

KFOjCnqEu92Fr1Mu51TzBhc9.ttf

KFOjCnqEu92Fr1Mu51TzBhc9.ttf

20 ms

54 ms

recaptcha__en.js

recaptcha__en.js

23 ms

Accessibility Review

mrsec.duke.edu accessibility score

100

Accessibility Issues

Best Practices

mrsec.duke.edu 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

Page has valid source maps

SEO Factors

mrsec.duke.edu SEO score

86

Search Engine Optimization Advices

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

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 Mrsec.duke.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 Mrsec.duke.edu 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

mrsec.duke.edu

Open Graph description is not detected on the main page of Mrsec Duke. 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: