Performance Report for http://www.wexnermedical.osu.edu/brain-spine-neuro

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.

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A large DOM will increase memory usage, cause longer style calculations, and produce costly layout reflows. Learn how to avoid an excessive DOM size.

["div.ot-sel-all-chkbox > div#ot-selall-hostcntr > label > span.ot-label-txt","body.has-scrollbar"]

First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric.

"[{\"url\": \"http:\/\/www.wexnermedical.osu.edu\/brain-spine-neuro\", \"resolution\": \"Allowed\"}]"

First Meaningful Paint measures when the primary content of a page is visible. Learn more about the First Meaningful Paint metric.

"[{\"url\": \"http:\/\/www.wexnermedical.osu.edu\/brain-spine-neuro\", \"resolution\": \"Allowed\"}]"

Leverage the `font-display` CSS feature to ensure text is user-visible while webfonts are loading. Learn more about `font-display`.

"[{\"url\": \"https:\/\/wexnermedical.osu.edu\/_FONTS\/Capita\/CapitaReg.woff\", \"wastedMs\": 302.3889994621277}, {\"url\": \"https:\/\/wexnermedical.osu.edu\/_FONTS\/Capita\/CapitaBol.woff\", \"wastedMs\": 262.78500032424927}]"

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.

"[{\"url\": \"https:\/\/wexnermedical.osu.edu\/brain-spine-neuro\", \"responseTime\": 882.905}]"

Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric

"[{\"url\": \"http:\/\/www.wexnermedical.osu.edu\/brain-spine-neuro\", \"resolution\": \"Allowed\"}]"

This is the largest contentful element painted within the viewport. Learn more about the Largest Contentful Paint element

"[{\"type\": \"table\", \"items\": [{\"node\": {\"lhId\": \"page-0-DIV\", \"path\": \"7,HTML,2,BODY,20,DIV,0,DIV\", \"type\": \"node\", \"snippet\": \"<div class=\\\"pageHeader__banner\\\" style=\\\"background-image: url(&quot;\/-\/media\/images\/wexnermedical\/page-header\/healthcar\u2026&quot;);\\\">\", \"selector\": \"body.has-scrollbar > div#pageHeader > div.pageHeader__banner\", \"nodeLabel\": \"Brain and Spine Disorders\\nAt the Neurological Institute, we offer comprehensive\u2026\", \"boundingRect\": {\"top\": 60, \"left\": 0, \"right\": 785, \"width\": 785, \"bottom\": 441, \"height\": 381}}}], \"headings\": [{\"key\": \"node\", \"label\": \"Element\", \"valueType\": \"node\"}]}, {\"type\": \"table\", \"items\": [{\"phase\": \"TTFB\", \"timing\": 1287.212, \"percent\": \"13%\"}, {\"phase\": \"Load Delay\", \"timing\": 4669.621062820363, \"percent\": \"49%\"}, {\"phase\": \"Load Time\", \"timing\": 1180.4059889829696, \"percent\": \"12%\"}, {\"phase\": \"Render Delay\", \"timing\": 2401.5299481966676, \"percent\": \"25%\"}], \"headings\": [{\"key\": \"phase\", \"label\": \"Phase\", \"valueType\": \"text\"}, {\"key\": \"percent\", \"label\": \"% of LCP\", \"valueType\": \"text\"}, {\"key\": \"timing\", \"label\": \"Timing\", \"valueType\": \"ms\"}]}]"

Polyfills and transforms enable legacy browsers to use new JavaScript features. However, many aren't necessary for modern browsers. For your bundled JavaScript, adopt a modern script deployment strategy using module/nomodule feature detection to reduce the amount of code shipped to modern browsers, while retaining support for legacy browsers. Learn how to use modern JavaScript

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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

"[{\"group\": \"scriptEvaluation\", \"duration\": 2402.461200000001, \"groupLabel\": \"Script Evaluation\"}, {\"group\": \"other\", \"duration\": 722.0130000000029, \"groupLabel\": \"Other\"}, {\"group\": \"styleLayout\", \"duration\": 545.1185999999998, \"groupLabel\": \"Style & Layout\"}, {\"group\": \"scriptParseCompile\", \"duration\": 137.92710000000002, \"groupLabel\": \"Script Parsing & Compilation\"}, {\"group\": \"parseHTML\", \"duration\": 74.38679999999994, \"groupLabel\": \"Parse HTML & CSS\"}, {\"group\": \"garbageCollection\", \"duration\": 43.42440000000001, \"groupLabel\": \"Garbage Collection\"}, {\"group\": \"paintCompositeRender\", \"duration\": 22.7295, \"groupLabel\": \"Rendering\"}]"

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.

[]

Image formats like WebP and AVIF often provide better compression than PNG or JPEG, which means faster downloads and less data consumption. Learn more about modern image formats.

["article.card > a.card__cardLink > div.card__imgContainer > img.card__img","article.card > a.card__cardLink > div.card__imgContainer > img.card__img","article.card > a.card__cardLink > div.card__imgContainer > img.card__img","div.flipFlop__image > div.videoContainer > a#vidlPHsV3d_lEU > img","div.pagefooter__linkBadge > div.pagefooter__badges > a > img"]

Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive. Learn how to defer offscreen images.

["article.card > a.card__cardLink > div.card__imgContainer > img.card__img","article.card > a.card__cardLink > div.card__imgContainer > img.card__img","article.card > a.card__cardLink > div.card__imgContainer > img.card__img","div.pagefooter__linkBadge > div.pagefooter__badges > a > img","header.hdEmbed__title > span.svelte-19lf42x > a.svelte-19lf42x > img.svelte-19lf42x","div > div.ot-pc-header > div.ot-pc-logo > img","div.pw-container > div.pagefooter__info > a.logo > img","div.ot-pc-footer > div.ot-pc-footer-logo > a > img"]

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

"[{\"url\": \"http:\/\/www.wexnermedical.osu.edu\/brain-spine-neuro\", \"wastedMs\": 876.442}, {\"url\": \"https:\/\/wexnermedical.osu.edu\/brain-spine-neuro\", \"wastedMs\": 0}]"

Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles. Learn how to eliminate render-blocking resources.

"[{\"url\": \"https:\/\/wexnermedical.osu.edu\/ruxitagentjs_ICA7NVfqrux_10287240325103108.js\", \"wastedMs\": 671, \"totalBytes\": 83064}, {\"url\": \"https:\/\/ajax.googleapis.com\/ajax\/libs\/jquery\/2.2.4\/jquery.min.js\", \"wastedMs\": 1068, \"totalBytes\": 30658}, {\"url\": \"https:\/\/wexnermedical.osu.edu\/scriptsbundle\/wexnerkendo?v=RtKin0X_yuKpaM4vUgUmhZAn07TqUcuoG0LaG-ZPbmI1\", \"wastedMs\": 503, \"totalBytes\": 81542}]"

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

"[{\"url\": \"https:\/\/wexnermedical.osu.edu\/brain-spine-neuro\", \"responseTime\": 882.905}]"

Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric.

"[{\"url\": \"http:\/\/www.wexnermedical.osu.edu\/brain-spine-neuro\", \"resolution\": \"Allowed\"}]"

Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading. Learn how to minimize third-party impact.

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Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric.

[]

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

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Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

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Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

["div.container > span.pageHeader__badge > a > img","div.pagefooter__linkBadge > div.pagefooter__badges > a > img","article.card > a.card__cardLink > div.card__imgContainer > img.card__img","article.card > a.card__cardLink > div.card__imgContainer > img.card__img","article.card > a.card__cardLink > div.card__imgContainer > img.card__img","div.flipFlop__image > div.videoContainer > a#vidlPHsV3d_lEU > img","header.hdEmbed__title > span.svelte-19lf42x > a.svelte-19lf42x > img.svelte-19lf42x","div.pw-container > div.pagefooter__info > a.logo > img","div.hdEmbed__container > article.hdEmbed__card > a.hdEmbed__card__image > img.svelte-14hxc2l","div.hdEmbed__container > article.hdEmbed__card > a.hdEmbed__card__image > img.svelte-14hxc2l","div.hdEmbed__container > article.hdEmbed__card > a.hdEmbed__card__image > img.svelte-14hxc2l"]

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.

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Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

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A long cache lifetime can speed up repeat visits to your page. Learn more about efficient cache policies.

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Consider adding `preconnect` or `dns-prefetch` resource hints to establish early connections to important third-party origins. Learn how to preconnect to required origins.

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Serve images that are appropriately-sized to save cellular data and improve load time. Learn how to size images.

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