Lighthouse Mobile
· 0 checks — Mobile 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.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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 | |
|---|---|---|---|
Get Ready for Rutgers Day! section.cc--component-container > div.c--component > div.home-page-mosaic-wrapper > article.background-image | /sites/default/files/styles/1x1_quarter_768_2x/public/lg_... | 801.1 KiB | 712.7 KiB |
Picture Yourself at Rutgers div.cl--component-list > section.cc--component-container > div.c--component > div.background-image | /sites/default/files/styles/16x9_full_default_1_5x/public... | 551.4 KiB | 499.9 KiB |
People Are Asking...
… div.c--component > div.f--field > div.right-container > div.cc--component-container | /sites/default/files/styles/16x9_full_default_1_5x/public... | 483.6 KiB | 432.2 KiB |
Internships and Career Success section.cc--component-container > div.c--component > div.home-page-mosaic-wrapper > article.background-image | /sites/default/files/styles/1x1_quarter_768_2x/public/mos... | 470.3 KiB | 381.9 KiB |
People Are Asking...
… div.c--component > div.f--field > div.right-container > div.cc--component-container | /sites/default/files/styles/16x9_full_default_1_5x/public... | 382.6 KiB | 331.2 KiB |
People Are Asking...
… div.c--component > div.f--field > div.right-container > div.cc--component-container | /sites/default/files/styles/16x9_full_default_1_5x/public... | 372.3 KiB | 320.9 KiB |
Estimate Your Cost of Attending Rutgers section.cc--component-container > div.c--component > div.home-page-mosaic-wrapper > article.background-image | /sites/default/files/styles/1x1_quarter_768_2x/public/mos... | 393.0 KiB | 304.5 KiB |
Cochrane’s Tavern, used as George Washington’s Headquarters on the corner of Al… div.c--component > div.image-link > div.f--field > img | /sites/default/files/styles/16x9_one_third_500_2x/public/... | 330.5 KiB | 295.9 KiB |
Members of the Marching Scarlet Knights perform on the College Avenue campus du… div.c--component > div.image-link > div.f--field > img | /sites/default/files/styles/16x9_half_500_2x/public/rutge... | 322.6 KiB | 288.1 KiB |
People Are Asking...
… div.c--component > div.f--field > div.right-container > div.cc--component-container | /sites/default/files/styles/16x9_full_default_1_5x/public... | 335.0 KiB | 283.6 KiB |
People Are Asking...
… div.c--component > div.f--field > div.right-container > div.cc--component-container | /sites/default/files/styles/16x9_full_default_1_5x/public... | 294.5 KiB | 243.1 KiB |
People explore booths at Rutgers Day on Busch Campus article.cc--component-container > div.c--component > div.f--field > img | /sites/default/files/styles/16x9_half_500_2x/public/2022-... | 274.8 KiB | 240.2 KiB |
From Left to Right: Keshav Badri, Amisha Rastogi and Jacob Oblander div.c--component > div.image-link > div.f--field > img | /sites/default/files/styles/16x9_one_third_500_2x/public/... | 266.4 KiB | 231.8 KiB |
Spotlight: Rutgers School of Dental Medicine section.cc--component-container > div.c--component > div.home-page-mosaic-wrapper > article.background-image | /sites/default/files/styles/4x3_half_default_1_5x/public/... | 238.7 KiB | 190.5 KiB |
Cassandra “Cassie” Vega poses for a photo with her right arm resting on a firep… div.c--component > div.image-link > div.f--field > img | /sites/default/files/styles/16x9_one_third_500_2x/public/... | 205.0 KiB | 170.4 KiB |
Diana Griebell (SSW ’26) Taub Fellowship recipient; is an end-of-life guide, so… div.c--component > div.image-link > div.f--field > img | /sites/default/files/styles/16x9_one_third_500_2x/public/... | 203.5 KiB | 168.9 KiB |
Picture Yourself at Rutgers div.cl--component-list > section.cc--component-container > div.c--component > div.background-image | www.rutgers.edu/sites/default/files/lg_nr17cacruday_a0502.jpg | 634.6 KiB | 156.0 KiB |
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
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.
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.
| URL | Est Savings |
|---|---|
| cdnjs.cloudflare.com/ajax/libs/font-awesome/6.6.0/webfonts/fa-brands-400.woff2 | 15 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.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| rutgers.edu/ | 1.2 s |
| www.rutgers.edu/ | 0.0 ms |
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
Diagnostics
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.rutgers.edu/core/misc/ajax.js?v=10.6.2 | 65.0 KiB | 45.6 KiB |
| www.rutgers.edu/core/misc/drupal.js?v=10.6.2 | 20.6 KiB | 16.2 KiB |
| platform-api.sharethis.com/js/sharethis.js | 46.4 KiB | 13.9 KiB |
| www.rutgers.edu/core/misc/message.js?v=10.6.2 | 8.2 KiB | 5.5 KiB |
| www.rutgers.edu/core/misc/progress.js?v=10.6.2 | 5.1 KiB | 3.3 KiB |
| www.rutgers.edu/core/misc/announce.js?v=10.6.2 | 4.2 KiB | 3.2 KiB |
| /profiles/rutgers/themes/rutgers_main/components/librarie... | 6.5 KiB | 2.4 KiB |
| /profiles/rutgers/themes/rutgers_main/pattern_lab/source/... | 8.2 KiB | 2.4 KiB |
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.
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 |
|---|---|---|
| /profiles/rutgers/themes/rutgers_main/components/node_mod... | 125.7 KiB | 73.6 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-KZ35S2N | 144.6 KiB | 69.5 KiB |
| www.googletagmanager.com/gtag/js?id=G-NQ7HLJ30E3&cx=c>m=4e64h1 | 172.8 KiB | 68.9 KiB |
| /cse/static/element/b33cba5881f68fbf/cse_element__en.js?u... | 98.5 KiB | 48.5 KiB |
| /profiles/rutgers/themes/rutgers_main/components/node_mod... | 70.6 KiB | 45.8 KiB |
| www.rutgers.edu/core/misc/ajax.js?v=10.6.2 | 65.0 KiB | 41.4 KiB |
| www.rutgers.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 | 85.5 KiB | 41.2 KiB |
| /profiles/rutgers/themes/rutgers_main/pattern_lab/source/... | 75.1 KiB | 40.3 KiB |
| cse.google.com/adsense/search/async-ads.js | 43.3 KiB | 31.5 KiB |
| platform-api.sharethis.com/js/sharethis.js | 46.3 KiB | 27.1 KiB |
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| Unattributable | 1.6 s | 24 ms | 0.0 ms |
| www.rutgers.edu/ | 1.0 s | 82 ms | 2.0 ms |
| www.rutgers.edu/core/assets/vendor/jquery/jquery.min.js?v=3.7.1 | 864 ms | 620 ms | 14 ms |
| /profiles/rutgers/themes/rutgers_main/components/node_mod... | 781 ms | 282 ms | 1.5 ms |
| www.googletagmanager.com/gtag/js?id=G-NQ7HLJ30E3&cx=c>m=4e64h1 | 634 ms | 515 ms | 115 ms |
| www.googletagmanager.com/gtm.js?id=GTM-KZ35S2N | 577 ms | 468 ms | 76 ms |
| scripts.clarity.ms/0.8.59/clarity.js | 387 ms | 326 ms | 14 ms |
| cdn.blueconic.net/rutgers.js | 358 ms | 292 ms | 28 ms |
| /cse/static/element/b33cba5881f68fbf/cse_element__en.js?u... | 322 ms | 186 ms | 59 ms |
| /profiles/rutgers/themes/rutgers_main/pattern_lab/source/... | 303 ms | 0.0 ms | 0.0 ms |
| platform-api.sharethis.com/js/sharethis.js | 180 ms | 74 ms | 40 ms |
| /profiles/rutgers/themes/rutgers_main/components/node_mod... | 145 ms | 72 ms | 11 ms |
| ep2.adtrafficquality.google/sodar/sodar2.js | 107 ms | 97 ms | 4.0 ms |
| /profiles/rutgers/themes/rutgers_main/pattern_lab/source/... | 77 ms | 65 ms | 12 ms |
| cse.google.com/adsense/search/async-ads.js | 69 ms | 44 ms | 18 ms |
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 3.8 s |
| Other | 2.4 s |
| Style & Layout | 960 ms |
| Script Parsing & Compilation | 510 ms |
| Parse HTML & CSS | 508 ms |
| Rendering | 200 ms |
| Garbage Collection | 124 ms |
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.
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
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 |
|---|
Picture Yourself at Rutgers div.cl--component-list > section.cc--component-container > div.c--component > div.background-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.
Best practices
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Arts div.text-container > div.right-col > div.f--field > a |
Information Session div.text-container > div.right-col > div.f--field > a |
Honors and Awards div.text-container > div.right-col > div.f--field > a |
These items highlight common accessibility best practices.
Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Watch Video div.c--component > div.text-wrapper > div.video-link-list-wrapper > a.icon-play |
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 |
|---|---|
| SharedStorage | cdn.blueconic.net/rutgers.js line 62, col 205 |
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.