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sustainability.wisc.edu screenshot

Report Summary

  • 93

    Performance

    Renders faster than
    92% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

sustainability.wisc.edu

Office of Sustainability – University of Wisconsin–Madison – UW–Madison

Page Load Speed

4.3 sec in total

First Response

98 ms

Resources Loaded

3.7 sec

Page Rendered

489 ms

sustainability.wisc.edu screenshot

About Website

Welcome to sustainability.wisc.edu homepage info - get ready to check Sustainability Wisc best content for United States right away, or after learning these important things about sustainability.wisc.edu

UW–Madison is tackling critical sustainability challenges in service of our campus community, the state of Wisconsin, and the planet.Achieve Net-Zero EmissionsSupport Cross-Campus InvolvementFoster Ed...

Visit sustainability.wisc.edu

Key Findings

We analyzed Sustainability.wisc.edu page load time and found that the first response time was 98 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

sustainability.wisc.edu performance score

93

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value4.5 s

72/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.07

96/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

sustainability.wisc.edu

98 ms

sustainability.wisc.edu

1347 ms

js

142 ms

main.min.css

19 ms

style.css

28 ms

Our browser made a total of 25 requests to load all elements on the main page. We found that 52% of them (13 requests) were addressed to the original Sustainability.wisc.edu, 40% (10 requests) were made to Cdn.wiscweb.wisc.edu and 4% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Sustainability.wisc.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 361.6 kB (12%)

Content Size

2.9 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sustainability.wisc.edu main page is 2.9 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. 40% of websites need less resources to load. Images take 2.7 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 60.3 kB

  • Original 78.9 kB
  • After minification 74.8 kB
  • After compression 18.6 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 60.3 kB or 76% of the original size.

Image Optimization

-11%

Potential reduce by 295.5 kB

  • Original 2.7 MB
  • After minification 2.4 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. Obviously, Sustainability Wisc needs image optimization as it can save up to 295.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-8%

Potential reduce by 5.8 kB

  • Original 73.3 kB
  • After minification 73.3 kB
  • After compression 67.5 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

-0%

Potential reduce by 65 B

  • Original 36.5 kB
  • After minification 36.5 kB
  • After compression 36.4 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. Sustainability.wisc.edu has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 8 (35%)

Requests Now

23

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sustainability Wisc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

sustainability.wisc.edu

sustainability.wisc.edu

98 ms

sustainability.wisc.edu

sustainability.wisc.edu

1347 ms

js

js

142 ms

main.min.css

main.min.css

19 ms

style.css

style.css

28 ms

main.css

main.css

27 ms

jquery.min.js

jquery.min.js

46 ms

report_filter_scripts.js

report_filter_scripts.js

33 ms

main.js

main.js

31 ms

main.min.js

main.min.js

43 ms

jquery-migrate.min.js

jquery-migrate.min.js

37 ms

uwcookieconsent.min.js

uwcookieconsent.min.js

27 ms

main.js

main.js

1122 ms

uw-match-card-height.min.js

uw-match-card-height.min.js

1119 ms

5-1600x500.png

5-1600x500.png

115 ms

wi-map.png

wi-map.png

2148 ms

Chancellor-Mnooking-Feb-8-2024-1-768x512.jpg

Chancellor-Mnooking-Feb-8-2024-1-768x512.jpg

55 ms

elements_W-white-e1706583860647-300x190.png

elements_W-white-e1706583860647-300x190.png

58 ms

icons-red_wind-turbine.png

icons-red_wind-turbine.png

57 ms

icons-red_handshake.png

icons-red_handshake.png

58 ms

icons-red_people.png

icons-red_people.png

59 ms

icons-red_recycle.png

icons-red_recycle.png

59 ms

icons-red_microscope.png

icons-red_microscope.png

60 ms

icons-red_chart.png

icons-red_chart.png

60 ms

elements_dash-line-red-e1706584166779-300x36.png

elements_dash-line-red-e1706584166779-300x36.png

61 ms

Accessibility Review

sustainability.wisc.edu accessibility score

98

Accessibility Issues

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

Links do not have a discernible name

Best Practices

sustainability.wisc.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

sustainability.wisc.edu SEO score

91

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

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 Sustainability.wisc.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 Sustainability.wisc.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

sustainability.wisc.edu

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