Wisc.edu University of Wisconsin–Madison
The University of Wisconsin–Madison is a public land-grant university and prolific research institution. Our students, staff, and faculty members part...
wisc.edu Desktop Performance
96/100
These metrics represent real-world Chrome users experience viewing wisc.edu web page. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.
User Loading Experience
First Input Delay
First Contentful Paint
Cumulative Layout Shift
Largest Contentful Paint
Metrics
Largest Contentful Paint86/100 1.3 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
First Contentful Paint96/100 0.8 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Speed Index99/100 0.8 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Cumulative Layout Shift100/100 0.004
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Total Blocking Time100/100 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Time to Interactive100/100 0.8 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
Should Fix (7)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Eliminate render-blocking resources
Potential savings of 270 ms
274 ms
Remove unused CSS
Potential savings of 107 KiB
200 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Keep request counts low and transfer sizes small
36 requests • 661 KiB
Largest Contentful Paint element
1 element found
Avoid long main-thread tasks
1 long task found
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
10 chains found
Passed Audits (22)
Minimizes main-thread work
0.4 s
Preload key requests
Uses efficient cache policy on static assets
1 resource found
Avoids enormous network payloads
Total size was 661 KiB
Minify CSS
Avoids `document.write()`
Serve images in next-gen formats
Potential savings of 11 KiB
Minimize third-party usage
Third-party code blocked the main thread for 0 ms
Enable text compression
Potential savings of 4 KiB
Use video formats for animated content
Remove unused JavaScript
Uses passive listeners to improve scrolling performance
Initial server response time was short
Root document took 140 ms
All text remains visible during webfont loads
JavaScript execution time
0.0 s
Preconnect to required origins
Minify JavaScript
Avoid multiple page redirects
Potential savings of 190 ms
Efficiently encode images
Properly size images
Potential savings of 72 KiB
Defer offscreen images
Avoids an excessive DOM size
526 elements
wisc.edu Desktop SEO
100/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Passed Audits (10)
Image elements have `[alt]` attributes
Links are crawlable
Document has a valid `hreflang`
Document has a `<title>` element
Document avoids plugins
Links have descriptive text
Page has successful HTTP status code
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Page isn’t blocked from indexing
Document has a meta description
wisc.edu Desktop Best Practices
85/100
These checks highlight opportunities to improve the overall code health of wisc.edu page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (2)
General
Browser errors were logged to the console
Trust and Safety
Does not use HTTPS
1 insecure request found
Passed Audits (12)
Avoids Application Cache
Avoids requesting the notification permission on page load
Properly defines charset
Detected JavaScript libraries
Avoids deprecated APIs
Allows users to paste into password fields
Displays images with correct aspect ratio
Page has the HTML doctype
Avoids front-end JavaScript libraries with known security vulnerabilities
Links to cross-origin destinations are safe
Avoids requesting the geolocation permission on page load
Serves images with appropriate resolution
wisc.edu Desktop Progressive Web App
44/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Should Fix (9)
Fast and reliable
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
PWA Optimized
Does not provide a valid `apple-touch-icon`
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Does not set a theme color for the address bar.
Installable
Web app manifest does not meet the installability requirements
Does not use HTTPS
1 insecure request found
Does not register a service worker that controls page and `start_url`
Passed Audits (4)
Redirects HTTP traffic to HTTPS
Page load is fast enough on mobile networks
Contains some content when JavaScript is not available
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
wisc.edu Desktop Accessibility
100/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Passed Audits (24)
Image elements have `[alt]` attributes
`[aria-*]` attributes match their roles
`<html>` element has a `[lang]` attribute
Links have a discernible name
`<html>` element has a valid value for its `[lang]` attribute
Document has a `<title>` element
`[role]`s have all required `[aria-*]` attributes
The page contains a heading, skip link, or landmark region
`[aria-*]` attributes are valid and not misspelled
`[aria-*]` attributes have valid values
Heading elements appear in a sequentially-descending order
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
ARIA IDs are unique
No element has a `[tabindex]` value greater than 0
`[id]` attributes on active, focusable elements are unique
`[role]`s are contained by their required parent element
Buttons have an accessible name
`[aria-hidden="true"]` is not present on the document `<body>`
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]` values are valid
`[aria-hidden="true"]` elements do not contain focusable descendents
Background and foreground colors have a sufficient contrast ratio
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
Desktop Speed
74/100
These checks analyze the performance of wisc.edu on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (4)
Leverage browser caching
Optimize images
Enable compression
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Passed Audits (6)
Avoid landing page redirects
Reduce server response time
Minify CSS
Minify HTML
Minify JavaScript
Prioritize visible content
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