Tools & Wizards About Us
sustainable.mit.edu screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 76

    Accessibility

    Visual factors better than
    that of 42% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

sustainable.mit.edu

MIT Sustainable Supply Chain Lab - Building Sustainable Supply Chains

Page Load Speed

5.7 sec in total

First Response

259 ms

Resources Loaded

4.5 sec

Page Rendered

954 ms

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 259 ms and then it took 5.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

sustainable.mit.edu performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value20.1 s

0/100

25%

SI (Speed Index)

Value12.5 s

3/100

10%

TBT (Total Blocking Time)

Value3,970 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.012

100/100

15%

TTI (Time to Interactive)

Value20.1 s

2/100

10%

Network Requests Diagram

sustainable.mit.edu

259 ms

sustainable.mit.edu

2211 ms

mediaelementplayer-legacy.min.css

30 ms

wp-mediaelement.min.css

32 ms

menu-image.css

103 ms

Our browser made a total of 120 requests to load all elements on the main page. We found that 17% of them (20 requests) were addressed to the original Sustainable.mit.edu, 17% (20 requests) were made to Fonts.gstatic.com and 11% (13 requests) were made to I0.wp.com. The less responsive or slowest element that took the longest time to load (2.2 sec) belongs to the original domain Sustainable.mit.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 354.7 kB (4%)

Content Size

9.9 MB

After Optimization

9.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sustainable.mit.edu main page is 9.9 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 8.8 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 262.0 kB

  • Original 314.8 kB
  • After minification 311.1 kB
  • After compression 52.8 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 262.0 kB or 83% of the original size.

Image Optimization

-0%

Potential reduce by 39.7 kB

  • Original 8.8 MB
  • After minification 8.7 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

-8%

Potential reduce by 48.0 kB

  • Original 609.1 kB
  • After minification 609.1 kB
  • After compression 561.1 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

-3%

Potential reduce by 5.0 kB

  • Original 183.4 kB
  • After minification 183.4 kB
  • After compression 178.4 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 54 (59%)

Requests Now

91

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 91 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 37 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

sustainable.mit.edu

sustainable.mit.edu

259 ms

sustainable.mit.edu

sustainable.mit.edu

2211 ms

mediaelementplayer-legacy.min.css

mediaelementplayer-legacy.min.css

30 ms

wp-mediaelement.min.css

wp-mediaelement.min.css

32 ms

menu-image.css

menu-image.css

103 ms

dashicons.min.css

dashicons.min.css

39 ms

ctf-styles.min.css

ctf-styles.min.css

103 ms

css

css

55 ms

css

css

23 ms

jetpack.css

jetpack.css

10 ms

embed.js

embed.js

110 ms

js

js

134 ms

js

js

293 ms

form-styles.js

form-styles.js

13 ms

photon.min.js

photon.min.js

13 ms

jquery.min.js

jquery.min.js

14 ms

jquery-migrate.min.js

jquery-migrate.min.js

14 ms

scripts.min.js

scripts.min.js

375 ms

jquery.fitvids.js

jquery.fitvids.js

259 ms

easypiechart.js

easypiechart.js

259 ms

salvattore.js

salvattore.js

259 ms

intersection-observer.js

intersection-observer.js

453 ms

lazy-images.js

lazy-images.js

453 ms

common.js

common.js

527 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

15 ms

mediaelement-migrate.min.js

mediaelement-migrate.min.js

13 ms

wp-mediaelement.min.js

wp-mediaelement.min.js

12 ms

e-202410.js

e-202410.js

20 ms

gtm.js

gtm.js

250 ms

ahksjCist7E

ahksjCist7E

391 ms

mountains-2572419.jpg

mountains-2572419.jpg

389 ms

plastic-arms.jpeg

plastic-arms.jpeg

627 ms

3VBzLrF6FvA

3VBzLrF6FvA

509 ms

CTL-logo-white-2-lines-2024.png

CTL-logo-white-2-lines-2024.png

750 ms

insight.min.js

insight.min.js

290 ms

style.min.css

style.min.css

21 ms

logo-cscmp-300x141-1.jpg

logo-cscmp-300x141-1.jpg

277 ms

Xylem-logo-550x200-1.jpeg

Xylem-logo-550x200-1.jpeg

277 ms

unicef_twitter1.png

unicef_twitter1.png

277 ms

YcSIASkLFDkoiOLFeOvKhyk1fks5mXgztRifk692mRM.jpg

YcSIASkLFDkoiOLFeOvKhyk1fks5mXgztRifk692mRM.jpg

306 ms

Colgate-Palmolive-Logo-PNG-Transparent.png

Colgate-Palmolive-Logo-PNG-Transparent.png

277 ms

Dell_Logo.png

Dell_Logo.png

364 ms

Accenture-logo.png

Accenture-logo.png

365 ms

MITofficesust_2lines.png

MITofficesust_2lines.png

365 ms

Starbucks_Corporation_Logo_2011.svg_.png

Starbucks_Corporation_Logo_2011.svg_.png

364 ms

PG.png

PG.png

364 ms

CH_Robinson.png

CH_Robinson.png

391 ms

Coppel.jpg

Coppel.jpg

393 ms

SSCL-logo-color-2024.png

SSCL-logo-color-2024.png

599 ms

mit_logo_micro_rgb_silver-gray-48x28.png

mit_logo_micro_rgb_silver-gray-48x28.png

430 ms

moldovahighway.jpg

moldovahighway.jpg

1354 ms

LYNXMPEG531EP.jpg

LYNXMPEG531EP.jpg

728 ms

supermarket.jpg

supermarket.jpg

1352 ms

supplychain-containers-1.jpg

supplychain-containers-1.jpg

820 ms

buffalo_bayou.jpg

buffalo_bayou.jpg

1417 ms

Green_Trees_AdobeStock_207714693.jpeg

Green_Trees_AdobeStock_207714693.jpeg

1705 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4uaVc.ttf

301 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4uaVc.ttf

356 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4uaVc.ttf

356 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4uaVc.ttf

386 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4uaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4uaVc.ttf

387 ms

581 ms

js

js

289 ms

ga6iaw1J5X9T9RW6j9bNVls-hfgvz8JcMofYTa32J4wsL2JAlAhZqFCTyccP.ttf

ga6iaw1J5X9T9RW6j9bNVls-hfgvz8JcMofYTa32J4wsL2JAlAhZqFCTyccP.ttf

236 ms

ga6iaw1J5X9T9RW6j9bNVls-hfgvz8JcMofYTa32J4wsL2JAlAhZT1eTyccP.ttf

ga6iaw1J5X9T9RW6j9bNVls-hfgvz8JcMofYTa32J4wsL2JAlAhZT1eTyccP.ttf

235 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwmRdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwmRdr.ttf

228 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwmRdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3iu4nwmRdr.ttf

234 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwmRdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3i54rwmRdr.ttf

353 ms

6xK3dSBYKcSV-LCoeQqfX1RYOo3qNq7g.ttf

6xK3dSBYKcSV-LCoeQqfX1RYOo3qNq7g.ttf

359 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwmRdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwmRdr.ttf

359 ms

6xKydSBYKcSV-LCoeQqfX1RYOo3i94_wmRdr.ttf

6xKydSBYKcSV-LCoeQqfX1RYOo3i94_wmRdr.ttf

359 ms

modules.woff

modules.woff

1261 ms

js

js

266 ms

analytics.js

analytics.js

261 ms

uwt.js

uwt.js

333 ms

insight_tag_errors.gif

insight_tag_errors.gif

323 ms

insight_tag_errors.gif

insight_tag_errors.gif

401 ms

www-player.css

www-player.css

122 ms

www-embed-player.js

www-embed-player.js

121 ms

base.js

base.js

120 ms

ahksjCist7E

ahksjCist7E

189 ms

3VBzLrF6FvA

3VBzLrF6FvA

245 ms

collect

collect

116 ms

collect

collect

106 ms

capture

capture

647 ms

all.min.css

all.min.css

18 ms

css

css

59 ms

center.js

center.js

205 ms

bEv4pfBBiPZxjfP1Yi2oH5NNP_NKVRe7Ben40zFrRScULfx5-KkBl7RN0qFAsIOCeA-E7DfYQS0fbPyerC0iJJ4VcRIcnzbJF4s=w16

bEv4pfBBiPZxjfP1Yi2oH5NNP_NKVRe7Ben40zFrRScULfx5-KkBl7RN0qFAsIOCeA-E7DfYQS0fbPyerC0iJJ4VcRIcnzbJF4s=w16

111 ms

api.js

api.js

101 ms

js

js

84 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

33 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

33 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

31 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

32 ms

www-player.css

www-player.css

35 ms

www-embed-player.js

www-embed-player.js

100 ms

base.js

base.js

167 ms

adsct

adsct

746 ms

adsct

adsct

680 ms

recaptcha__en.js

recaptcha__en.js

503 ms

identify.html

identify.html

409 ms

ad_status.js

ad_status.js

367 ms

Hg8RJ6IYDEt2XfeS9TTatHSj5NgA1bkUUg8jx44YVvw.js

Hg8RJ6IYDEt2XfeS9TTatHSj5NgA1bkUUg8jx44YVvw.js

198 ms

embed.js

embed.js

153 ms

fa-solid-900.ttf

fa-solid-900.ttf

322 ms

fa-regular-400.ttf

fa-regular-400.ttf

320 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

279 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

278 ms

anchor

anchor

262 ms

styles__ltr.css

styles__ltr.css

126 ms

recaptcha__en.js

recaptcha__en.js

132 ms

id

id

95 ms

Create

Create

223 ms

Create

Create

226 ms

722MIWu_TMZiQau3mAaarHtCk2pd6rTYw5oNsH4wR_g.js

722MIWu_TMZiQau3mAaarHtCk2pd6rTYw5oNsH4wR_g.js

47 ms

webworker.js

webworker.js

47 ms

logo_48.png

logo_48.png

33 ms

recaptcha__en.js

recaptcha__en.js

11 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

34 ms

Accessibility Review

sustainable.mit.edu accessibility score

76

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

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

92

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

Page has valid source maps

SEO Factors

sustainable.mit.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 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: