Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.Detailed Report
Audit breakdown by category with detailed findings.
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Performance issues directly impact user engagement and conversion rates.
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Performance issues directly impact user engagement and conversion rates.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Students in the Perelman Plaza div.container > div.hero > picture.hero__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/admissions/un... | 413.1 KiB | 246.2 KiB |
A crowd of students at Drexel's 2025 Commencement. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... | 124.9 KiB | 109.1 KiB |
A gold medallion and tassel on a blue velvet fabric. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... | 58.0 KiB | 45.1 KiB |
Students on Drexel University's campus div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/admissions/tr... | 66.3 KiB | 43.8 KiB |
Eunice Santos div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... | 45.0 KiB | 34.9 KiB |
div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/admissions/vi... | 56.0 KiB | 33.5 KiB |
Drexel Map Collage div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/home/promo-ar... | 42.6 KiB | 20.1 KiB |
President Antonio Merlo at a podium in his robes div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... | 67.7 KiB | 19.3 KiB |
Exterior of Bossone Research Enterprise Center with Philadelphia Skyline section.in-the-news > div.in-the-news__body > div.in-the-news__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/home/news/dre... | 12.8 KiB | 6.9 KiB |
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| drexel.edu/layouts/system/VisitorIdentification.js | 5.3 KiB | 427 ms |
| drexel.edu/carbon/css/drexel-structure-generated.css | 70.9 KiB | 697 ms |
| drexel.edu/carbon/css/drexel-core-theme-generated.css | 4.6 KiB | 427 ms |
| drexel.edu/carbon/css/drexel-base-theme-generated.css | 19.5 KiB | 562 ms |
| drexel.edu/carbon/css/drexel-base-generated.css | 11.3 KiB | 156 ms |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| drexel.edu/carbon/css/drexel-structure-generated.css | 66.4 KiB | 60.0 KiB |
| drexel.edu/carbon/css/drexel-base-theme-generated.css | 14.9 KiB | 14.5 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| drexel.edu/carbon/js/libraries-generated.js | 439.2 KiB | 236.9 KiB |
| www.googletagmanager.com/gtag/js?id=G-H9NXSPBKEB&cx=c>m=4e64h1 | 150.7 KiB | 69.4 KiB |
| www.googletagmanager.com/gtag/destination?id=AW-16652750553&cx=c>m=4e64h1 | 134.1 KiB | 67.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-6KJ1PNLE19&cx=c>m=4e64h1 | 172.3 KiB | 66.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-2PPGKTTDCQ&cx=c>m=4e64k0h2 | 151.4 KiB | 65.1 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-KQV5JFP | 178.3 KiB | 64.4 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-WN3NC5R | 124.9 KiB | 64.4 KiB |
| analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 120.9 KiB | 62.9 KiB |
| drexel.edu/carbon/js/index-generated.js | 103.0 KiB | 60.4 KiB |
| www.googletagmanager.com/gtag/js?id=DC-5810200&cx=c>m=4e64h1 | 129.4 KiB | 56.6 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-TJCKC2 | 200.1 KiB | 52.6 KiB |
| www.clickcease.com/monitor/stat.js | 42.9 KiB | 38.4 KiB |
| connect.facebook.net/en_US/fbevents.js | 96.5 KiB | 32.8 KiB |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| Pages with cache-control:no-store header cannot enter back/forward cache. | Actionable |
| Pages whose main resource has cache-control:no-store cannot enter back/forward cache. | Not actionable |
| Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header. | Not actionable |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| drexel.edu/carbon/css/drexel-core-theme-generated.css | 4.6 KiB | 4.6 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Students in the Perelman Plaza div.container > div.hero > picture.hero__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/admissions/un... |
Drexel University - Lancaster Walk div.container > div.hero > picture.hero__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/home/where-dr... |
President Antonio Merlo at a podium in his robes div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... |
A woman clapping div.color-stripe-promo > div.color-stripe-promo__image-wrapper > picture.color-stripe-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna... |
div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/admissions/vi... |
Students on Drexel University's campus div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/admissions/tr... |
Drexel Map Collage div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/home/promo-ar... |
Philadelphia Skyline div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/life-at-drexe... |
Drexel University's Activities Fair div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/life-at-drexe... |
div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/home/where-dr... |
Experience Drexel: Solutions at the Nanoscale) div.video-grid-block__video-wrapper > div.video-grid-block__video-overlay > picture > img | /~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna... |
Experience What Education Can Be. Drexel.) div.video-grid-block__video-wrapper > div.video-grid-block__video-overlay > picture > img | /~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna... |
Experience Drexel: Preparing for Disaster) div.video-grid-block__video-wrapper > div.video-grid-block__video-overlay > picture > img | /~/media/Drexel/Core-Site-Group/Core/Images/video-thumbna... |
Eunice Santos div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... |
A crowd of students at Drexel's 2025 Commencement. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... |
A gold medallion and tassel on a blue velvet fabric. div.media-promo > div.media-promo__image-wrapper > picture.media-promo__image > img | /~/media/Drexel/Core-Site-Group/News/Images/v2/story-imag... |
Exterior of Bossone Research Enterprise Center with Philadelphia Skyline section.in-the-news > div.in-the-news__body > div.in-the-news__image > img | /~/media/Drexel/Core-Site-Group/Core/Images/home/news/dre... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
Accessibility
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
ARIA
Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.
Informational: a Permissions-Policy directive showing feature -> allowed origins.
Source: MDN Permissions-Policy
| Failing Elements |
|---|
ACADEMICS & EXPERIENCE
ADMISSIONS
LIFE AT DREXEL
RESEARCH & INNOVATION
ABOUT body > header.header > div#headernavigation |
REQUEST INFO
APPLY
VISIT body > nav.sticky-footer > div.sticky-footer__menu > div#footermenu |
Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Research & Innovation div.layout-columns > div.color-block-promo > div.color-block-promo__image-wrapper > div.color-block-promo__image |
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Contrast
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
RESEARCH & INNOVATION div.layout-columns > div.color-block-promo > div.color-block-promo__body > div.color-block-promo__label |
These are opportunities to improve the legibility of your content.
Names and labels
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.layout-columns__col > div.rich-text > p > a div.layout-columns__col > div.rich-text > p > a |
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.
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| AttributionReporting | connect.facebook.net/en_US/fbevents.js line 279, col 769 |
| SharedStorage | c.amazon-adsystem.com/aat/amzn.js line 1, col 7935 |
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed. | |
Failed to load resource: the server responded with a status of 503 () | |
Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
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Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
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Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
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Framing 'https://match.adsrvr.org/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
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Framing 'https://tr.snapchat.com/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
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Framing 'https://tr.snapchat.com/' violates the following report-only Content Security Policy directive: "frame-src 'self' https://5810200.fls.doubleclick.net https://s.amazon-adsystem.com https://c.amazon-adsystem.com https://widget.thegivingblock.com https://app.heyhalda.com https://www.collegevine.com https://www.youtube.com https://www.google.com https://www.googletagmanager.com https://platform.twitter.com https://insight.adsrvr.org https://ad.ipredictive.com". The violation has been logged, but no further action has been taken.
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The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. | |
www.googletagmanager.com/gtag/js?id=DC-5810200&cx=c>m=4e64h1 line 125, col 441 | The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. |
platform.twitter.com/widgets.js line 7, col 36291 | The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. |
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. | |
platform.twitter.com/widgets.js line 7, col 25921 | The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. |
platform.twitter.com/widgets.js line 7, col 25921 | The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. |
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. | |
The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. | |
sc-static.net/scevent.min.js line 1, col 23064 | The Content Security Policy directive 'upgrade-insecure-requests' is ignored when delivered in a report-only policy. |
You are currently using minified code outside of NODE_ENV === "production". This means that you are running a slower development build of Redux. You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify or setting mode to production in webpack (https://webpack.js.org/concepts/mode/) to ensure you have the correct code for your production build. |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
SEO
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Content Best Practices
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| drexel.edu/about/outcomes-value | LEARN MORE |
Format your HTML in a way that enables crawlers to better understand your app’s content.