Performance Report for https://www.mayoclinichealthsystem.org/locations/eau-claire

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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Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more about the Cumulative Layout Shift metric.

"[{\"newEngineResult\": {\"cumulativeLayoutShift\": 0.07643312101910828, \"cumulativeLayoutShiftMainFrame\": 0.07643312101910828}, \"newEngineResultDiffered\": false, \"cumulativeLayoutShiftMainFrame\": 0.07643312101910828}]"

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

"[]"

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

"[]"

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:\/\/www.mayoclinichealthsystem.org\/locations\/eau-claire\", \"responseTime\": 627.5310000000001}]"

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

"[]"

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\": \"1,HTML,1,BODY,2,DIV,4,DIV,0,DIV\", \"type\": \"node\", \"snippet\": \"<div style=\\\"background-image: url(&quot;\/-\/media\/health-system-internet\/hero-banner\/desktop\u2026&quot;);\\\" class=\\\"hero \\\">\", \"selector\": \"body > div > div#mainWrapper > div.hero\", \"nodeLabel\": \"Eau Claire\", \"boundingRect\": {\"top\": 60, \"left\": 0, \"right\": 785, \"width\": 785, \"bottom\": 180, \"height\": 120}}}], \"headings\": [{\"key\": \"node\", \"label\": \"Element\", \"valueType\": \"node\"}]}, {\"type\": \"table\", \"items\": [{\"phase\": \"TTFB\", \"timing\": 869.77, \"percent\": \"18%\"}, {\"phase\": \"Load Delay\", \"timing\": 2439.9472917827643, \"percent\": \"51%\"}, {\"phase\": \"Load Time\", \"timing\": 728.1464119168677, \"percent\": \"15%\"}, {\"phase\": \"Render Delay\", \"timing\": 765.8452963003688, \"percent\": \"16%\"}], \"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

"[{\"url\": \"https:\/\/cdn.decibelinsight.net\/i\/14036\/705830\/di.js\", \"subItems\": {\"type\": \"subitems\", \"items\": [{\"signal\": \"Array.prototype.forEach\", \"location\": {\"url\": \"https:\/\/cdn.decibelinsight.net\/i\/14036\/705830\/di.js\", \"line\": 218, \"type\": \"source-location\", \"column\": 29372, \"urlProvider\": \"network\"}}]}, \"totalBytes\": 0, \"wastedBytes\": 12037}, {\"url\": \"https:\/\/cdn.decibelinsight.net\/i\/14036\/705830\/di.js\", \"subItems\": {\"type\": \"subitems\", \"items\": [{\"signal\": \"Array.prototype.forEach\", \"location\": {\"url\": \"https:\/\/cdn.decibelinsight.net\/i\/14036\/705830\/di.js\", \"line\": 218, \"type\": \"source-location\", \"column\": 29372, \"urlProvider\": \"network\"}}]}, \"totalBytes\": 0, \"wastedBytes\": 12037}, {\"url\": \"https:\/\/tagdelivery.mayoclinic.org\/healthsystem\/prod\/utag.1.js?utv=ut4.51.202404021755\", \"subItems\": {\"type\": \"subitems\", \"items\": [{\"signal\": \"Date.prototype.toJSON\", \"location\": {\"url\": \"https:\/\/tagdelivery.mayoclinic.org\/healthsystem\/prod\/utag.1.js?utv=ut4.51.202404021755\", \"line\": 4, \"type\": \"source-location\", \"column\": 46, \"urlProvider\": \"network\"}}]}, \"totalBytes\": 0, \"wastedBytes\": 7373}, {\"url\": \"https:\/\/solutions.invocacdn.com\/js\/invoca-latest.min.js\", \"subItems\": {\"type\": \"subitems\", \"items\": [{\"signal\": \"@babel\/plugin-transform-classes\", \"location\": {\"url\": \"https:\/\/solutions.invocacdn.com\/js\/invoca-latest.min.js\", \"line\": 24, \"type\": \"source-location\", \"column\": 378, \"urlProvider\": \"network\"}}]}, \"totalBytes\": 0, \"wastedBytes\": 79}]"

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\": 1495.698000000002, \"groupLabel\": \"Script Evaluation\"}, {\"group\": \"other\", \"duration\": 374.5016999999987, \"groupLabel\": \"Other\"}, {\"group\": \"styleLayout\", \"duration\": 81.49290000000002, \"groupLabel\": \"Style & Layout\"}, {\"group\": \"scriptParseCompile\", \"duration\": 51.50789999999999, \"groupLabel\": \"Script Parsing & Compilation\"}, {\"group\": \"garbageCollection\", \"duration\": 17.4003, \"groupLabel\": \"Garbage Collection\"}, {\"group\": \"paintCompositeRender\", \"duration\": 13.576799999999997, \"groupLabel\": \"Rendering\"}, {\"group\": \"parseHTML\", \"duration\": 12.1884, \"groupLabel\": \"Parse HTML & CSS\"}]"

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.

["div.col-sidebar > div.widget > a#sidebarImageLink-3b212993a44546e2babcea989cd64107 > img","body > div > div#mainWrapper > div.hero","div.community__items > div.community__item > a#blogPostImage-0bc5fa5217eb4c4ba9868266c41bbeb4-a2396fa5f5a645538cd3bd119389781e > img.community__item__image","div.community__items > div.community__item > a#blogPostImage-af4bb8742eb64ac2a75e7fd776419432-a2396fa5f5a645538cd3bd119389781e > img.community__item__image"]

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:\/\/www.mayoclinichealthsystem.org\/Content\/HealthSystemInternet\/css\/mobile.min.css\", \"wastedMs\": 470, \"totalBytes\": 23877}, {\"url\": \"https:\/\/www.mayoclinichealthsystem.org\/Content\/HealthSystemInternet\/js\/vendor\/require.min.js\", \"wastedMs\": 157, \"totalBytes\": 8266}, {\"url\": \"https:\/\/tagdelivery.mayoclinic.org\/healthsystem\/prod\/utag.sync.js\", \"wastedMs\": 1034, \"totalBytes\": 641}]"

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:\/\/www.mayoclinichealthsystem.org\/locations\/eau-claire\", \"responseTime\": 627.5310000000001}]"

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

"[]"

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.

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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

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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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