Performance Report for http://www.saintlukeskc.org/about-saint-lukes

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

"[{\"newEngineResult\": {\"cumulativeLayoutShift\": 0.11194267515923569, \"cumulativeLayoutShiftMainFrame\": 0.11194267515923569}, \"newEngineResultDiffered\": false, \"cumulativeLayoutShiftMainFrame\": 0.11194267515923569}]"

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.saintlukeskc.org\/about-saint-lukes\", \"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.saintlukeskc.org\/about-saint-lukes\", \"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:\/\/www.saintlukeskc.org\/themes\/custom\/saintlukes_theme\/dest\/icons.ttf\", \"wastedMs\": 201.43300008773804}, {\"url\": \"https:\/\/fonts.gstatic.com\/s\/roboto\/v18\/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2\", \"wastedMs\": 778.045000076294}, {\"url\": \"https:\/\/fonts.gstatic.com\/s\/roboto\/v18\/KFOlCnqEu92Fr1MmEU9fBBc4AMP6lQ.woff2\", \"wastedMs\": 920.4150004386902}, {\"url\": \"https:\/\/fonts.gstatic.com\/s\/roboto\/v18\/KFOmCnqEu92Fr1Mu7GxKKTU1Kvnz.woff2\", \"wastedMs\": 216.9379997253418}, {\"url\": \"https:\/\/fonts.gstatic.com\/s\/roboto\/v18\/KFOlCnqEu92Fr1MmEU9fChc4AMP6lbBP.woff2\", \"wastedMs\": 307.35900020599365}]"

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.saintlukeskc.org\/about-saint-lukes\", \"responseTime\": 889.912}]"

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.saintlukeskc.org\/about-saint-lukes\", \"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-P\", \"path\": \"1,HTML,1,BODY,3,DIV,0,DIV,2,MAIN,1,DIV,0,DIV,0,DIV,0,DIV,1,ARTICLE,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,1,P\", \"type\": \"node\", \"snippet\": \"<p>\", \"selector\": \"div > div.field > div > p\", \"nodeLabel\": \"On Jan. 1, 2024, BJC and Saint Luke\u2019s officially combined as BJC Health System \u2026\", \"boundingRect\": {\"top\": 449, \"left\": 146, \"right\": 639, \"width\": 493, \"bottom\": 581, \"height\": 132}}}], \"headings\": [{\"key\": \"node\", \"label\": \"Element\", \"valueType\": \"node\"}]}, {\"type\": \"table\", \"items\": [{\"phase\": \"TTFB\", \"timing\": 980.73, \"percent\": \"28%\"}, {\"phase\": \"Load Delay\", \"timing\": 0, \"percent\": \"0%\"}, {\"phase\": \"Load Time\", \"timing\": 0, \"percent\": \"0%\"}, {\"phase\": \"Render Delay\", \"timing\": 2514.1414999999997, \"percent\": \"72%\"}], \"headings\": [{\"key\": \"phase\", \"label\": \"Phase\", \"valueType\": \"text\"}, {\"key\": \"percent\", \"label\": \"% of LCP\", \"valueType\": \"text\"}, {\"key\": \"timing\", \"label\": \"Timing\", \"valueType\": \"ms\"}]}]"

These DOM elements contribute most to the CLS of the page. Learn how to improve CLS

["body.node-about-saint-luke-s > div.dialog-off-canvas-main-canvas","div > div.field > div > p","div > div.field > div > p","div > div.field > div > p","header.site-header > div.site-header__toggle-group > a.site-header__toggle > ::before","header.site-header > div.site-header__toggle-group > a.site-header__toggle > ::before"]

["body.node-about-saint-luke-s > div.dialog-off-canvas-main-canvas","div > div.field > div > p","div > div.field > div > p","header.site-header > div.site-header__toggle-group > a.site-header__toggle > ::before"]

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

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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#slhs_footer > div.col-lg-4 > div.img > 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.

["div#slhs_footer > div.col-lg-4 > div.img > img","div.col-lg-4 > div.site-footer__app-icons > a > img","div.col-lg-4 > div.site-footer__logo > a.no_link > img.logo-white","div.col-lg-4 > div.site-footer__app-icons > a > img"]

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

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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.

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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.saintlukeskc.org\/about-saint-lukes\", \"responseTime\": 889.912}]"

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

"[{\"url\": \"http:\/\/www.saintlukeskc.org\/about-saint-lukes\", \"resolution\": \"Allowed\"}]"

Some third-party embeds can be lazy loaded. Consider replacing them with a facade until they are required. Learn how to defer third-parties with a facade.

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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.

[]

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

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Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

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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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Consider marking your touch and wheel event listeners as `passive` to improve your page's scroll performance. Learn more about adopting passive event listeners.

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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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