Performance Report for https://www2.hm.com/zh_hk/index.html

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\": 0.20790746717243433, \"cumulativeLayoutShiftMainFrame\": 0.20790746717243433}, \"newEngineResultDiffered\": false, \"cumulativeLayoutShiftMainFrame\": 0.20790746717243433}]"

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

["a.ProductLink-module--productLinkSimple__1H2Hv > div > div.Image-module--imageWrapper__35gcM > img.Image-module--image__20sjn","body.homepage-page > div.fetchcountrysector > div.hide-content > ul"]

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:\/\/www2.hm.com\/zh_hk\/index.html\", \"responseTime\": 139.304}]"

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,30,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,2,DIV\", \"type\": \"node\", \"snippet\": \"<div id=\\\"onetrust-policy-text\\\">\", \"selector\": \"div.ot-sdk-row > div#onetrust-group-container > div#onetrust-policy > div#onetrust-policy-text\", \"nodeLabel\": \"We use first- and third-party cookies including other tracking technologies fro\u2026\", \"boundingRect\": {\"top\": 70, \"left\": 72, \"right\": 463, \"width\": 391, \"bottom\": 421, \"height\": 351}}}], \"headings\": [{\"key\": \"node\", \"label\": \"Element\", \"valueType\": \"node\"}]}, {\"type\": \"table\", \"items\": [{\"phase\": \"TTFB\", \"timing\": 985.938, \"percent\": \"8%\"}, {\"phase\": \"Load Delay\", \"timing\": 0, \"percent\": \"0%\"}, {\"phase\": \"Load Time\", \"timing\": 0, \"percent\": \"0%\"}, {\"phase\": \"Render Delay\", \"timing\": 11840.414000000004, \"percent\": \"92%\"}], \"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

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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\": 2658.650400000002, \"groupLabel\": \"Script Evaluation\"}, {\"group\": \"styleLayout\", \"duration\": 484.6335000000001, \"groupLabel\": \"Style & Layout\"}, {\"group\": \"other\", \"duration\": 446.1833999999976, \"groupLabel\": \"Other\"}, {\"group\": \"scriptParseCompile\", \"duration\": 60.3402, \"groupLabel\": \"Script Parsing & Compilation\"}, {\"group\": \"garbageCollection\", \"duration\": 56.44319999999993, \"groupLabel\": \"Garbage Collection\"}, {\"group\": \"paintCompositeRender\", \"duration\": 19.256400000000017, \"groupLabel\": \"Rendering\"}, {\"group\": \"parseHTML\", \"duration\": 17.583000000000006, \"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.

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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.

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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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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.

[]

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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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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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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