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sustainable.mit.edu screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    37% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 48% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 85

    SEO

    Google-friendlier than
    56% of websites

sustainable.mit.edu

MIT Sustainable Supply Chain Lab - Building Sustainable Supply Chains

Page Load Speed

8.4 sec in total

First Response

82 ms

Resources Loaded

5 sec

Page Rendered

3.2 sec

sustainable.mit.edu screenshot

About Website

Visit sustainable.mit.edu now to see the best up-to-date Sustainable MIT content for United States and also check out these interesting facts you probably never knew about sustainable.mit.edu

The MIT Sustainable Supply Chains was launched in 2018. Our goal is to connect sustainable research outcomes to practical settings for companies.

Visit sustainable.mit.edu

Key Findings

We analyzed Sustainable.mit.edu page load time and found that the first response time was 82 ms and then it took 8.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

sustainable.mit.edu performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value60.0 s

0/100

25%

SI (Speed Index)

Value14.3 s

1/100

10%

TBT (Total Blocking Time)

Value5,610 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.029

100/100

15%

TTI (Time to Interactive)

Value18.3 s

3/100

10%

Network Requests Diagram

sustainable.mit.edu

82 ms

sustainable.mit.edu

1394 ms

wp-emoji-release.min.js

134 ms

style.min.css

72 ms

ctf-styles.min.css

178 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 16% of them (14 requests) were addressed to the original Sustainable.mit.edu, 15% (13 requests) were made to Fonts.gstatic.com and 14% (12 requests) were made to C0.wp.com. The less responsive or slowest element that took the longest time to load (3.1 sec) relates to the external source I1.wp.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 211.7 kB (1%)

Content Size

14.8 MB

After Optimization

14.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sustainable.mit.edu main page is 14.8 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. Images take 14.4 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 132.5 kB

  • Original 158.0 kB
  • After minification 153.4 kB
  • After compression 25.6 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 132.5 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 78.0 kB

  • Original 14.4 MB
  • After minification 14.3 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. Sustainable MIT images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 404 B

  • Original 87.2 kB
  • After minification 87.2 kB
  • After compression 86.8 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

-1%

Potential reduce by 797 B

  • Original 152.3 kB
  • After minification 152.3 kB
  • After compression 151.5 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. Sustainable.mit.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 29 (43%)

Requests Now

68

After Optimization

39

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sustainable MIT. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sustainable.mit.edu

sustainable.mit.edu

82 ms

sustainable.mit.edu

sustainable.mit.edu

1394 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

134 ms

style.min.css

style.min.css

72 ms

ctf-styles.min.css

ctf-styles.min.css

178 ms

css

css

123 ms

style.css

style.css

226 ms

css

css

169 ms

dashicons.min.css

dashicons.min.css

106 ms

jetpack.css

jetpack.css

82 ms

jquery.min.js

jquery.min.js

101 ms

jquery-migrate.min.js

jquery-migrate.min.js

94 ms

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et-core-unified-745-16637781937925.min.css

164 ms

embed.js

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166 ms

js

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164 ms

mediaelementplayer-legacy.min.css

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92 ms

wp-mediaelement.min.css

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111 ms

photon.min.js

photon.min.js

110 ms

custom.unified.js

custom.unified.js

632 ms

intersectionobserver-polyfill.min.js

intersectionobserver-polyfill.min.js

172 ms

lazy-images.min.js

lazy-images.min.js

498 ms

common.js

common.js

499 ms

wp-embed.min.js

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107 ms

mediaelement-and-player.min.js

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108 ms

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114 ms

wp-mediaelement.min.js

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114 ms

ctf-scripts.min.js

ctf-scripts.min.js

629 ms

e-202241.js

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113 ms

gtm.js

gtm.js

886 ms

container-landscape.jpg

container-landscape.jpg

2720 ms

environmental-nonprofit-30.jpg

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170 ms

CCSI_logo_tree_icon.png

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2957 ms

MITofficesust_2lines.png

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1803 ms

CH_Robinson.png

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2124 ms

SSCL-logo-color-scaled.jpg

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1384 ms

Green_Trees_AdobeStock_207714693.jpeg

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2666 ms

unilever.png

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2628 ms

Dell_Logo.png

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2086 ms

Colgate-Palmolive-Logo-PNG-Transparent.png

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3052 ms

Uber-Freight-logo.png

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1784 ms

sams-club-e1622827386582.png

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1784 ms

PG.png

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2448 ms

gPzRU51P_normal.jpg

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2027 ms

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2624 ms

rmi-logo.png

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1796 ms

KPMG-logo-jpg-3.17.19-2.jpg

KPMG-logo-jpg-3.17.19-2.jpg

1782 ms

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1761 ms

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1506 ms

CO-Mines-logo-.jpg

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1796 ms

Vale_logo.svg_.png

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2083 ms

iintel.png

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2081 ms

logo-cscmp-300x141-1.jpg

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1782 ms

Blue_Yonder_rgb.png

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2080 ms

chiquita-vector-logo.png

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2444 ms

EAFIT.png

EAFIT.png

2023 ms

lfcoo2ei_normal.jpg

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2079 ms

palmcloseup.jpg

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2623 ms

supermarket.jpg

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2448 ms

plastic-arms.jpeg

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1779 ms

nanostore377x252.jpg

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2100 ms

mll-logo-NEW.png

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2099 ms

uganda-beans-crop-u51881.jpg

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2620 ms

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1377 ms

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1665 ms

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1952 ms

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1951 ms

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2090 ms

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2088 ms

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2308 ms

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1966 ms

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2160 ms

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2161 ms

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2308 ms

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2309 ms

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2309 ms

modules.ttf

modules.ttf

1262 ms

1588 ms

insight.min.js

insight.min.js

1704 ms

analytics.js

analytics.js

1190 ms

capture

capture

1720 ms

uwt.js

uwt.js

1153 ms

collect

collect

310 ms

collect

collect

629 ms

adsct

adsct

109 ms

adsct

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110 ms

20 ms

nr-1216.min.js

nr-1216.min.js

116 ms

Accessibility Review

sustainable.mit.edu accessibility score

79

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

sustainable.mit.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

sustainable.mit.edu SEO score

85

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 Sustainable.mit.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 Sustainable.mit.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

sustainable.mit.edu

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