Performance Report for https://www.tuftsmedicalcenter.org/

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\": 0.0926836518046709, \"cumulativeLayoutShiftMainFrame\": 0.0926836518046709}, \"newEngineResultDiffered\": false, \"cumulativeLayoutShiftMainFrame\": 0.0926836518046709}]"

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.link > div > a > span.icon-link__text","body"]

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.

"[]"

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

"[{\"url\": \"https:\/\/www.tuftsmedicine.org\/themes\/custom\/outline_frontend\/dist\/assets\/fonts\/roboto-flex\/roboto-flex-wght.woff2\", \"wastedMs\": 1387.781000137329}, {\"url\": \"https:\/\/www.tuftsmedicine.org\/themes\/custom\/outline_frontend\/dist\/assets\/fonts\/roboto-slab\/roboto-slab-v24-latin-regular.woff2\", \"wastedMs\": 704.4309997558594}, {\"url\": \"https:\/\/view.ceros.com\/CerosIcons-Regular-2023-01-26.woff\", \"wastedMs\": 430.8079996109009}, {\"url\": \"https:\/\/view.ceros.com\/Avenir%20Next%20LT%20W05%20Regular.woff2\", \"wastedMs\": 527.2290005683899}, {\"url\": \"https:\/\/fonts.gstatic.com\/s\/robotoslab\/v34\/BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjo0oSmb2RjV9Ku1Q.woff2\", \"wastedMs\": 729.8849997520447}, {\"url\": \"https:\/\/fonts.gstatic.com\/s\/robotoslab\/v34\/BngbUXZYTXPIvIBgJJSb6s3BzlRRfKOFbvjovoSmb2RjV9Ku1Q.woff2\", \"wastedMs\": 785.0240001678467}]"

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.tuftsmedicine.org\/\", \"responseTime\": 160.263}]"

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

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Above-the-fold images that are lazily loaded render later in the page lifecycle, which can delay the largest contentful paint. Learn more about optimal lazy loading.

["div.small-container > div > tufts-responsive-image > img"]

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.

[]

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.video-wrapper > img","article.card-wrapper > div.media-content","tufts-grid > tufts-icon-button > div > img.icon","tufts-grid > tufts-icon-button > div > img.icon"]

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

"[{\"url\": \"https:\/\/www.tuftsmedicalcenter.org\/\", \"wastedMs\": 781.641}, {\"url\": \"https:\/\/www.tuftsmedicine.org\/\", \"wastedMs\": 0}]"

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.

[]

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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Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes. Learn more about text compression.

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