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· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
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Detailed Report

Audit breakdown by category with detailed findings.

30

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
t.contentsquare.net/uxa/ea6942bbd7cb0.js900.0 s132.3 KiB
cdn.dynamicyield.com/api/8768435/api_static.js28800.0 s157.5 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s95.0 KiB
cdn.us.heap-api.com/v5/heapjs-static/5.3.10/core/heap.js0.0 ms81.9 KiB
/cc-utilities/shopify.js?store-id=704331de-2cac-474b-8304...0.0 ms73.2 KiB
cdn.dynamicyield.com/api/8768435/api_dynamic.js300.0 s65.2 KiB
js.afterpay.com/afterpay-1.x.js3600.0 s74.2 KiB
cdn-widgetsrepository.yotpo.com/v1/loader/D06-6dZPUqA9vgYpJNuEhg0.0 ms57.1 KiB
rapid-cdn.yottaa.com/rapid/lib/cTNGTFD40YMBwA.js1800.0 s44.8 KiB
/signals/config/847463095293947?v=2.9.293&r=stable&domain...1200.0 s37.4 KiB
j.northbeam.io/vendor/nb-sp.min.js300.0 s32.9 KiB
j.northbeam.io/vendor/nb-sp.min.js300.0 s32.9 KiB
/api/v1/UZeRBMi0FrRz1kY4kx2mcA/load.js?shop=brooklinen2.m...5.0 s27.4 KiB
chat.siena.cx/dist/webchat.js?appKey=6afa5786-49a6-4754-8db6-4fff55ece8860.0 ms19.9 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
d.impactradius-event.com/A2622372-7e79-4992-8e96-93d45cda04861.js900.0 s20.3 KiB
b-code.liadm.com/lc2.js86400.0 s45.2 KiB
d38xvr37kwwhcm.cloudfront.net/js/grin-sdk.js?shop=brooklinen2.myshopify.com0.0 ms16.5 KiB
raof9iiu.micpn.com/p/js/1.js0.0 ms15.9 KiB
staticw2.yotpo.com/MdtpPOdzecvdDWwA3pFvhLyB6ab4osWf5p8TQHpj/widget.js0.0 ms15.7 KiB
/v1/loader/MdtpPOdzecvdDWwA3pFvhLyB6ab4osWf5p8TQHpj0.0 ms15.3 KiB
/proxy/0d21f5643f07b9b35fb6a2545b69f8f5e07fd24b019614e2a1...600.0 s11.5 KiB
cdn.pdst.fm/ping.min.js3600.0 s10.2 KiB
collector-55120.us.tvsquared.com/tv2track.js600.0 s8.7 KiB
tags.srv.stackadapt.com/events.js5.0 s7.6 KiB
cdn.us.heap-api.com/config/3048295484/heap_config.js120.0 s3.7 KiB
cdn.ometria.com/tags/fda43d6576f9e8bf.js86400.0 s7.7 KiB
cdn.ometria.com/tags/fda43d6576f9e8bf.js?v=fda43d6576f9e8bf86400.0 s7.7 KiB
cdn.ometria.com/tags/fda43d6576f9e8bf.js86400.0 s7.7 KiB
ct.pinterest.com/static/ct/token_create.js7200.0 s3.9 KiB
s.pinimg.com/ct/lib/main.34af66ec.js1209600.0 s27.4 KiB
/proxy/6b454d2fbf1682130dd9656d35193e18b03e1547f8b6a196b6...600.0 s2.7 KiB
cdn.mgln.ai/pixel.min.js14400.0 s3.4 KiB
/cdn/shopifycloud/portable-wallets/latest/accelerated-che...300.0 s2.2 KiB
/a/elevar/static/configs/0f4bdfed6f1596b97017835981af3fcc...1.0 s2.0 KiB
/configs/0f4bdfed6f1596b97017835981af3fcc4cea1332/config.js1.0 s1.6 KiB
s.pinimg.com/ct/core.js7200.0 s2.1 KiB
/api/v1/js-obj/UZeRBMi0FrRz1kY4kx2mcA/events/events.js?ln...20.0 s1.3 KiB
/st?ga_tracking_id=G-80JGCF4NMJ&ga_client_id=2109132656.1...0.0 ms1.2 KiB
/a/elevar/static/configs/0f4bdfed6f1596b97017835981af3fcc...1.0 s1.2 KiB
www.brooklinen.com/apps/cm/v1/load?source=embed0.0 ms1.2 KiB
chat.siena.cx/dist/siena-chat.css0.0 ms808 B
/rp.gif?ts=1775636193027&id=t2_s7oxe&event=PageVisit&m.it...0.0 ms637 B
/st?ga_tracking_id=G-80JGCF4NMJ&ga_client_id=2109132656.1...0.0 ms581 B
shop.app/checkouts/internal/preloads.js?locale=en-US&shop_id=951712660.0 s554 B
/config/com/15913fc5-6301-4257-a1e1-7714317d1346.js?v=3.5...0.0 ms456 B
/tv2track.php?action_name=Luxury%20Bedding%2C%20Sheets%20...0.0 ms276 B
collector-9286.us.tvsquared.com/tv2track.js0.0 ms190 B
/track/v3/fda43d6576f9e8bf/event.gif?data=y29YpwzJAhaWn3r...0.0 ms185 B
/pixel/?ad_log=referer&action=lead&pixid=8cd26908-aeee-41...0.0 ms131 B
/rp.gif?ts=1775636193030&id=t2_s7oxe&event=PageVisit&m.va...0.0 ms75 B
/tr/?id=847463095293947&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.10439200000000001] map[node:map[boundingRect:map[bottom:1178 height:412 left:0 right:1350 top:766 width:1350] lhId:page-2-SECTION nodeLabel:Shop by Category All Bedding Bundle Savings Duvet Inserts & Pillows All Bat… path:1,HTML,1,BODY,6,MAIN,0,DIV,1,SECTION selector:body#luxury-bedding-sheets-amp-comforters-online-brooklinen > main#MainContent > div.content-container > section#shopify-section-template--20183958847578__visual_category_NabbPT snippet:<section id="shopify-section-template--20183958847578__visual_category_NabbPT" class="shopify-section section-visual-category stepped--hide commercial-module-sp…"> type:node] score:0.104122] map[node:map[boundingRect:map[bottom:101 height:31 left:1076 right:1286 top:70 width:210] lhId:page-1-DIV nodeLabel:Search ... 1 path:1,HTML,1,BODY,4,DIV,0,STICKY-HEADER,0,HEADER,4,DIV selector:div#shopify-section-navigation > sticky-header.header-wrapper > header#bkl-5-v1 > div.header__icons snippet:<div class="header__icons site-header__extras"> type:node] score:0.00027]]

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
www.brooklinen.com/cdn/shop/files/ToledoSerial-Bold.otf?v=175140292395 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:27.096 source:map[column:95475 line:114 type:source-location url:https://www.brooklinen.com/cdn/shop/t/4417/assets/brooklinen-theme.js?v=169145595473704288901775593102 urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:79.823 source:map[type:text value:[unattributed]]] map[reflowTime:0.389 source:map[column:121838 line:0 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:1.446 source:map[column:63 line:26 type:source-location url:https://cdn.shopify.com/extensions/019d6baf-2256-7a72-a959-594d6c533604/swym-relay-723/assets/storefront-layout-components.js urlProvider:network]] map[reflowTime:10.145 source:map[column:168470 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:0.241 source:map[column:168567 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:0.411 source:map[column:168663 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:0.243 source:map[column:168770 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:0.208 source:map[column:168871 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:0.262 source:map[column:169391 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:0.173 source:map[column:169520 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:0.173 source:map[column:169685 line:2 type:source-location url:https://cdn.dynamicyield.com/api/8768435/api_static.js urlProvider:network]] map[reflowTime:23.484 source:map[column:11418 line:113 type:source-location url:https://www.brooklinen.com/cdn/shop/t/4417/assets/brooklinen-theme.js?v=169145595473704288901775593102 urlProvider:network]] map[reflowTime:76.764 source:map[column:2351 line:5 type:source-location url:https://www.brooklinen.com/cdn/shop/t/4417/assets/splide.esm-688b6f4b.js urlProvider:network]] map[reflowTime:17.779 source:map[column:41683 line:0 type:source-location url: urlProvider:network]] map[reflowTime:16.291 source:map[column:2147 line:113 type:source-location url:https://www.brooklinen.com/cdn/shop/t/4417/assets/brooklinen-theme.js?v=169145595473704288901775593102 urlProvider:network]] map[reflowTime:13.045 source:map[column:70178 line:519 type:source-location url:https://www.brooklinen.com/cdn/shop/t/4417/assets/ProductModal-166a90f8.js urlProvider:network]] map[reflowTime:1.51 source:map[column:52851 line:514 type:source-location url:https://www.brooklinen.com/cdn/shop/t/4417/assets/ProductModal-166a90f8.js urlProvider:network]] map[reflowTime:0.408 source:map[column:54547 line:514 type:source-location url:https://www.brooklinen.com/cdn/shop/t/4417/assets/ProductModal-166a90f8.js urlProvider:network]] map[reflowTime:11.658 source:map[column:125356 line:0 type:source-location url: urlProvider:network]] map[reflowTime:3.506 source:map[column:125453 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.32 source:map[column:125549 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.161 source:map[column:125656 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.152 source:map[column:125757 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.195 source:map[column:126277 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.13 source:map[column:126406 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.719 source:map[column:126571 line:0 type:source-location url: urlProvider:network]]]

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:204.7819990234375 label:Time to first byte subpart:timeToFirstByte] map[duration:3007.2240009765624 label:Resource load delay subpart:resourceLoadDelay] map[duration:1168.75 label:Resource load duration subpart:resourceLoadDuration] map[duration:-677.494 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-VIDEO
nodeLabel: div.hero__media > a.media--link > div.media--video > video
path: 1,HTML,1,BODY,6,MAIN,0,DIV,0,SECTION,1,SECTION,0,DIV,0,A,0,DIV,0,VIDEO
selector: div.hero__media > a.media--link > div.media--video > video
snippet: <video playsinline="playsinline" autoplay="autoplay" loop="loop" muted="muted" preload="metadata" poster="">

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-VIDEO
nodeLabel: div.hero__media > a.media--link > div.media--video > video
path: 1,HTML,1,BODY,6,MAIN,0,DIV,0,SECTION,1,SECTION,0,DIV,0,A,0,DIV,0,VIDEO
selector: div.hero__media > a.media--link > div.media--video > video
snippet: <video playsinline="playsinline" autoplay="autoplay" loop="loop" muted="muted" preload="metadata" poster="">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
cdn.dynamicyield.com/api/8768435/api_static.js157.5 KiB172 ms
/extensions/019d1fd6-4f13-7903-90ac-15abcbd59a65/sbisa-sh...814 B244 ms
cdn.dynamicyield.com/api/8768435/api_dynamic.js65.2 KiB396 ms
cdn.cookielaw.org/scripttemplates/otSDKStub.js0 B230 ms
/extensions/f2dc2781-781c-4b62-b8ed-c5471f514e1a/51194b6b...2.3 KiB
rapid-cdn.yottaa.com/rapid/lib/cTNGTFD40YMBwA.js44.8 KiB324 ms
/cdn/shop/t/4417/assets/brooklinen-theme.css?v=4629626480...71.0 KiB339 ms
/cdn/shopifycloud/portable-wallets/latest/accelerated-che...2.2 KiB
/cdn/shop/t/4417/assets/brooklinen-index.css?v=1276361156...5.1 KiB

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
Classic Percale Core Sheet SetProduct Card Hover Image div.relative > a > div.ProductCard__Media--no-margin > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_25-12_Bedding_Luxe_BerrySt...100.9 KiB73.4 KiB
Super-Plush RobeProduct Card Hover Image div.relative > a > div.ProductCard__Media--no-margin > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_25-11_FebNewnessSP2_Shot8_...84.1 KiB53.2 KiB
Spotlight Image Card div.tile__image > a.tile__image-link > picture > img.card__image
/cdn/shop/files/BKL_25-02_Bedding_Linen_OatChambrayOxford...66.3 KiB50.0 KiB
Washed European Linen Duvet SetProduct Card Hover Image div.relative > a > div.ProductCard__Media > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_26-01_AprNewArrivals_Look2...64.2 KiB36.7 KiB
Visual Category Module Image a.visual-category-container > div.visual-category-image-wrapper > div.visual-category-image > img
/cdn/shop/files/BKL_26-01_AprNewArrivals_Look1_380x_8x9_W...40.5 KiB29.6 KiB
Luxe Sateen Hardcore Sheet BundleProduct Card Hover Image div.relative > a > div.ProductCard__Media > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_25-10_JanBBHCFlannel_Shot5...47.8 KiB25.4 KiB
Visual Category Module Image a.visual-category-container > div.visual-category-image-wrapper > div.visual-category-image > img
/cdn/shop/files/BKL_26-01_AprNewArrivals_Look5_010x_8x9_W...35.3 KiB24.4 KiB
Washed European Linen Duvet SetProduct Card Image div.relative > a > div.ProductCard__Media > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_26-02_Bedding_Linen_Oxford...43.8 KiB23.2 KiB
Super-Plush Shorty RobeProduct Card Hover Image div.relative > a > div.ProductCard__Media--no-margin > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_26-01_ShortyRobe_Look1_744...42.2 KiB22.4 KiB
Super-Plush Shorty RobeProduct Card Image div.relative > a > div.ProductCard__Media--no-margin > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_26-02_Bath_SP_Shorty_Robe_...42.0 KiB22.3 KiB
Luxe Sateen Hardcore Sheet BundleProduct Card Image div.relative > a > div.ProductCard__Media > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_25-01_Bedding_Luxe_TandemS...33.5 KiB17.8 KiB
Super-Plush RobeProduct Card Image div.relative > a > div.ProductCard__Media--no-margin > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_23-07_Bath_Robe_StripedMid...33.2 KiB17.6 KiB
Spotlight Image Card div.tile__image > a.tile__image-link > picture > img.card__image
/cdn/shop/files/BKL_24-07_Bedding_Classic_BotanicalGreen_...26.0 KiB14.6 KiB
Visual Category Module Image a.visual-category-container > div.visual-category-image-wrapper > div.visual-category-image > img
/cdn/shop/files/BKL_26-01_MarNewArrivals_Collections_Shot...30.0 KiB13.5 KiB
Visual Category Module Image a.visual-category-container > div.visual-category-image-wrapper > div.visual-category-image > img
/cdn/shop/files/BKL_25-11_FebNewnessSP2_Shot1_092x_8x9_WO...29.7 KiB13.2 KiB
Press Images div.press__logos > div.tickertape > div.tickertape__wrapper > img
/cdn/shop/files/6155f04bb97efe856be28f0d_Good_Morning_Ame...13.1 KiB12.8 KiB
Luxe Sateen Core Sheet SetProduct Card Hover Image div.relative > a > div.ProductCard__Media--no-margin > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_23-05_Q3Evergreen_Cream_Re...20.6 KiB10.9 KiB
Classic Percale Core Sheet SetProduct Card Image div.relative > a > div.ProductCard__Media--no-margin > img.ProductCard__ProductImg
/s/files/1/0951/7126/files/BKL_25-11_Bedding_Classic_Tand...18.3 KiB9.7 KiB
Award-winning div.ProductCard__Media > div.ProductCard__Badges > div.ProductCard__ImgBadgeWrapper > img.ProductCard__ImgBadge
/7432567226458/1749136591314/2025_CONDE-NAST_ARCHITECTURA...10.4 KiB9.6 KiB
Award-winning div.ProductCard__Media--no-margin > div.ProductCard__Badges > div.ProductCard__ImgBadgeWrapper > img.ProductCard__ImgBadge
/7296487424090/1734384088719/NYT-Wirecutter.png?v=1770848...7.1 KiB6.5 KiB
Press Images div.press__logos > div.tickertape > div.tickertape__wrapper > img
/cdn/shop/files/logo--good-housekeeping.png?v=1649869031&...8.1 KiB5.8 KiB
Press Images div.press__logos > div.tickertape > div.tickertape__wrapper > img
www.brooklinen.com/cdn/shop/files/logo--wirecutter.png?v=1649869031&width=2505.4 KiB4.2 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 328 ms
URLTime Spent
brooklinen.com/328 ms
www.brooklinen.com/0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Shop by Category All Bedding Bundle Savings Duvet Inserts & Pillows All Bat… body#luxury-bedding-sheets-amp-comforters-online-brooklinen > main#MainContent > div.content-container > section#shopify-section-template--20183958847578__visual_category_NabbPT
0.104
Search ... 1 div#shopify-section-navigation > sticky-header.header-wrapper > header#bkl-5-v1 > div.header__icons
0.000

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 80 ms 26.7 KiB
URLTransfer SizeEst Savings
/extensions/019d6baf-2256-7a72-a959-594d6c533604/swym-rel...64.9 KiB12.9 KiB
cdn-widgetsrepository.yotpo.com/v1/loader/D06-6dZPUqA9vgYpJNuEhg24.8 KiB7.9 KiB
staticw2.yotpo.com/MdtpPOdzecvdDWwA3pFvhLyB6ab4osWf5p8TQHpj/widget.js15.3 KiB4.0 KiB
/extensions/019d6baf-2256-7a72-a959-594d6c533604/swym-rel...4.4 KiB2.0 KiB

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 150 ms 76.6 KiB
URLTransfer SizeEst Savings
/cdn/shop/t/4417/assets/brooklinen-theme.css?v=4629626480...70.4 KiB64.2 KiB
.swym-ui-component *,.swym-ui-component .swym-is-button,....12.7 KiB12.4 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 390 ms 1.3 MiB
URLTransfer SizeEst Savings
sdk.postscript.io/sdk.bundle.js?shopId=1664201.6 KiB144.9 KiB
www.googletagmanager.com/gtag/js?id=AW-973522331136.8 KiB101.9 KiB
cdn.dynamicyield.com/api/8768435/api_static.js157.0 KiB90.8 KiB
2b36d2a1092a.cdn4.forter.com/sn/2b36d2a1092a/script.js214.7 KiB89.5 KiB
accounts.google.com/gsi/client92.7 KiB67.1 KiB
www.googletagmanager.com/gtag/js?id=G-80JGCF4NMJ&cx=c&gtm=4e6461172.7 KiB64.4 KiB
www.googletagmanager.com/gtag/destination?id=DC-11096279&cx=c&gtm=4e6461130.2 KiB59.3 KiB
t.contentsquare.net/uxa/ea6942bbd7cb0.js131.8 KiB59.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-N3WBV32176.6 KiB57.5 KiB
www.googletagmanager.com/gtag/js?id=AW-930458877143.0 KiB57.5 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js109.2 KiB55.5 KiB
www.googletagmanager.com/gtag/js?id=AW-973522331&cx=c&gtm=4e6461136.8 KiB53.9 KiB
www.brooklinen.com/cdn/shop/t/4417/assets/ProductModal-166a90f8.js128.5 KiB53.8 KiB
/extensions/019d6baf-2256-7a72-a959-594d6c533604/swym-rel...64.9 KiB52.5 KiB
/extensions/019d6baf-2256-7a72-a959-594d6c533604/swym-rel...73.1 KiB43.5 KiB
/cc-utilities/shopify.js?store-id=704331de-2cac-474b-8304...72.8 KiB40.6 KiB
cdn.us.heap-api.com/v5/heapjs-static/5.3.10/core/heap.js81.5 KiB33.3 KiB
connect.facebook.net/en_US/fbevents.js94.8 KiB32.6 KiB
js.afterpay.com/afterpay-1.x.js73.6 KiB31.9 KiB
rapid-cdn.yottaa.com/rapid/lib/cTNGTFD40YMBwA.js44.5 KiB27.1 KiB
/extensions/019d1fd6-4f13-7903-90ac-15abcbd59a65/sbisa-sh...48.6 KiB23.6 KiB
www.brooklinen.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js59.8 KiB23.4 KiB
cdn.gladly.com/assets/chat-sdk/apiBootstrap~fbe01ce338bec8bd.js43.2 KiB23.0 KiB
/assets/chat-sdk/vendor-node_modules_reduxjs_toolkit_dist...47.0 KiB22.8 KiB
/cdn/shop/t/4417/assets/brooklinen-theme.js?v=16914559547...40.2 KiB22.3 KiB

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable1.4 s127 ms0.0 ms
t.contentsquare.net/uxa/ea6942bbd7cb0.js986 ms880 ms16 ms
www.brooklinen.com/cdn/shop/t/4417/assets/ProductModal-166a90f8.js652 ms437 ms0.7 ms
www.brooklinen.com/cdn/shop/t/4417/assets/splide.esm-688b6f4b.js590 ms148 ms0.1 ms
www.brooklinen.com/586 ms88 ms69 ms
cdn.dynamicyield.com/api/8768435/api_static.js571 ms355 ms11 ms
/cdn/shop/t/4417/assets/brooklinen-theme.js?v=16914559547...540 ms373 ms0.2 ms
/st?sec=8768435&ref=&scriptVersion=2.83.0&inHead=true&id=...469 ms397 ms4.1 ms
www.brooklinen.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js457 ms430 ms4.3 ms
www.brooklinen.com/cdn/shop/t/4417/assets/global-functions-77fa5d7f.js389 ms58 ms0.0 ms
rapid-cdn.yottaa.com/rapid/lib/cTNGTFD40YMBwA.js332 ms317 ms3.9 ms
cdn.us.heap-api.com/v5/heapjs-static/5.3.10/core/heap.js296 ms282 ms8.7 ms
/js/yofi-telemetry-prod.min.js?v=202510201606&shop=brookl...220 ms214 ms5.2 ms
2b36d2a1092a.cdn4.forter.com/sn/2b36d2a1092a/script.js216 ms184 ms11 ms
www.googletagmanager.com/gtag/js?id=AW-930458877198 ms166 ms18 ms
/extensions/019d6baf-2256-7a72-a959-594d6c533604/swym-rel...188 ms164 ms7.2 ms
www.redditstatic.com/ads/pixel.js164 ms115 ms5.1 ms
www.googletagmanager.com/gtm.js?id=GTM-N3WBV32146 ms129 ms14 ms
d38xvr37kwwhcm.cloudfront.net/js/grin-sdk.js?shop=brooklinen2.myshopify.com128 ms122 ms4.6 ms
sdk.postscript.io/sdk.bundle.js?shopId=1664109 ms88 ms16 ms
www.googletagmanager.com/gtag/js?id=G-80JGCF4NMJ&cx=c&gtm=4e6461108 ms92 ms14 ms
www.googletagmanager.com/gtag/js?id=AW-973522331&cx=c&gtm=4e646184 ms75 ms8.3 ms
sc-static.net/scevent.min.js74 ms71 ms1.1 ms
brooklinen2.myshopify.com/apps/cm/unified.js?cb=1775636100000&source=embed68 ms64 ms2.1 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js63 ms51 ms11 ms
www.googletagmanager.com/gtag/destination?id=DC-11096279&cx=c&gtm=4e646155 ms46 ms7.7 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation6.3 s
Other2.3 s
Style & Layout781 ms
Script Parsing & Compilation411 ms
Garbage Collection161 ms
Parse HTML & CSS135 ms
Rendering125 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/cdn/shop/videos/c/vp/ac2030ad7a2a41b98a289f392f7c23f5/ac...4.8 MiB
cdn.shopify.com/videos/c/o/v/22fb5fb296934790a87e14d61a63eb5f.mp44.6 MiB
cdn.shopify.com/videos/c/o/v/ca961a10d7384d67a0c3bbcf5b4fd3be.mp43.9 MiB
/cdn/shop/videos/c/vp/59a5af966b694b6281476459a146eb78/59...2.1 MiB
/cdn/shop/videos/c/vp/b48087af2099468283997ea05de9b38f/b4...1.4 MiB
/cdn/shop/videos/c/vp/e0511c17e3e74d1595c31ff7530fb4c6/e0...1.2 MiB
/cdn/shopifycloud/checkout-web/assets/c1/hooks-ButtonWith...346.2 KiB
2b36d2a1092a.cdn4.forter.com/sn/2b36d2a1092a/script.js215.2 KiB
sdk.postscript.io/sdk.bundle.js?shopId=1664202.2 KiB
/desktop.bundle.js?shopId=1664&shopShop=brooklinen2&sessi...198.6 KiB

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 127 user timings
●Avoid long main-thread tasks 16 long tasks found
●Avoid non-composited animations 21 animated elements found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 180 ms
●Server Backend Latencies 610 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 30 ms
○INP breakdown
89

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
a.media--link > div.media--video > video > img a.media--link > div.media--video > video > img

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section#shopify-section-template--20183958847578__theme_hero_Jnaffx > section#template--20183958847578__theme_hero_Jnaffx > div.hero__media > a.media--link section#shopify-section-template--20183958847578__theme_hero_Jnaffx > section#template--20183958847578__theme_hero_Jnaffx > div.hero__media > a.media--link

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Facebook div.footer__copyright > ul.footer__list-social > li.list-social__item > a.link
Twitter div.footer__copyright > ul.footer__list-social > li.list-social__item > a.link
Pinterest div.footer__copyright > ul.footer__list-social > li.list-social__item > a.link
Instagram div.footer__copyright > ul.footer__list-social > li.list-social__item > a.link

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Search ... sticky-header.header-wrapper > header#bkl-5-v1 > div.header__icons > button.header__search
1 sticky-header.header-wrapper > header#bkl-5-v1 > div.header__icons > button.header__icon
○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●ARIA IDs are unique
●`<video>` elements contain a `<track>` element with `[kind="captions"]`
●All heading elements contain content.
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
○`[accesskey]` values are unique
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○Tables have different content in the summary attribute and `<caption>`.
○Image elements do not have `[alt]` attributes that are redundant text.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
81

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.
rapid-cdn.yottaa.com/rapid/lib/cTNGTFD40YMBwA.js
The disableRemotePlayback attribute should be used in order to disable the default Cast integration instead of using -internal-media-controls-overlay-cast-button selector.
www.brooklinen.com/ line 251, col -1
AttributionReporting
/cdn/shopifycloud/storefront/assets/shop_events_listener-...

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
www.brooklinen.com/
/cdn/shopifycloud/shop-js/modules/v2/loader.init-shop-car.../cdn/shopifycloud/shop-js/modules/v2/loader.init-shop-car...
/cdn/shopifycloud/shop-js/modules/v2/client.shop-cart-syn.../cdn/shopifycloud/shop-js/modules/v2/client.shop-cart-syn...
/cdn/shopifycloud/shop-js/modules/v2/client.init-shop-car.../cdn/shopifycloud/shop-js/modules/v2/client.init-shop-car...
/cdn/shopifycloud/shop-js/modules/v2/chunk.window_UuUx4ot.../cdn/shopifycloud/shop-js/modules/v2/chunk.window_UuUx4ot...
/cdn/shopifycloud/shop-js/modules/v2/chunk.validators_COW.../cdn/shopifycloud/shop-js/modules/v2/chunk.validators_COW...
www.brooklinen.com/cdn/shopifycloud/shop-js/modules/v2/chunk.v4_CSBSzmbm.esm.js/cdn/shopifycloud/shop-js/modules/v2/chunk.v4_CSBSzmbm.es...
/cdn/shopifycloud/shop-js/modules/v2/chunk.useUserRecogni.../cdn/shopifycloud/shop-js/modules/v2/chunk.useUserRecogni...
/cdn/shopifycloud/shop-js/modules/v2/chunk.useEventListen.../cdn/shopifycloud/shop-js/modules/v2/chunk.useEventListen...
/cdn/shopifycloud/shop-js/modules/v2/chunk.index_4uAqGWkW.../cdn/shopifycloud/shop-js/modules/v2/chunk.index_4uAqGWkW...
/cdn/shopifycloud/shop-js/modules/v2/chunk.errors_C1VNjpX.../cdn/shopifycloud/shop-js/modules/v2/chunk.errors_C1VNjpX...
/cdn/shopifycloud/shop-js/modules/v2/chunk.document_wK9Xg.../cdn/shopifycloud/shop-js/modules/v2/chunk.document_wK9Xg...
/cdn/shopifycloud/shop-js/modules/v2/chunk.defineInitFunc.../cdn/shopifycloud/shop-js/modules/v2/chunk.defineInitFunc...
/cdn/shopifycloud/shop-js/modules/v2/chunk.debounce_Cw7Gg.../cdn/shopifycloud/shop-js/modules/v2/chunk.debounce_Cw7Gg...
/cdn/shopifycloud/shop-js/modules/v2/chunk.authorize_CvvY.../cdn/shopifycloud/shop-js/modules/v2/chunk.authorize_CvvY...
s.pinimg.com/ct/lib/main.34af66ec.jss.pinimg.com/ct/lib/main.34af66ec.js.map
s.pinimg.com/ct/core.jss.pinimg.com/ct/core.js.map
ct.pinterest.com/static/ct/token_create.jsct.pinterest.com/static/ct/token_create.js.map
2b36d2a1092a.cdn4.forter.com/sn/2b36d2a1092a/script.js
/cdn/shopifycloud/consent-tracking-api/v0.1/consent-track.../cdn/shopifycloud/consent-tracking-api/v0.1/consent-track...
www.brooklinen.com/cdn/shop/t/4417/assets/Swym-34194d8e.jswww.brooklinen.com/cdn/shop/t/4417/assets/Swym-34194d8e.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/splide.esm-688b6f4b.jswww.brooklinen.com/cdn/shop/t/4417/assets/splide.esm-688b6f4b.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/ProductModal-166a90f8.jswww.brooklinen.com/cdn/shop/t/4417/assets/ProductModal-166a90f8.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/ProductCardSwatches-a20606c5.jswww.brooklinen.com/cdn/shop/t/4417/assets/ProductCardSwatches-a20606c5.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/ProductCard-6878f886.jswww.brooklinen.com/cdn/shop/t/4417/assets/ProductCard-6878f886.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/js.cookie-9aaeb5d4.jswww.brooklinen.com/cdn/shop/t/4417/assets/js.cookie-9aaeb5d4.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/Hotspots-f63e3e5e.jswww.brooklinen.com/cdn/shop/t/4417/assets/Hotspots-f63e3e5e.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/global-functions-77fa5d7f.jswww.brooklinen.com/cdn/shop/t/4417/assets/global-functions-77fa5d7f.js.map
www.brooklinen.com/cdn/shop/t/4417/assets/DuoShop-053c179c.jswww.brooklinen.com/cdn/shop/t/4417/assets/DuoShop-053c179c.js.map
/cdn/shop/t/4417/assets/brooklinen-theme.js?v=16914559547.../cdn/shop/t/4417/assets/brooklinen-theme.js.map?v=1691455...
/cdn/shop/t/4417/assets/brooklinen-index.js?v=18174622498...www.brooklinen.com/cdn/shop/t/4417/assets/brooklinen-index.js.map
sdk.postscript.io/sdk.bundle.js?shopId=1664sdk.postscript.io/sdk.bundle.js.map
/sdk-script-loader.bundle.js?shopId=1664&shop=brooklinen2...sdk.postscript.io/sdk-script-loader.bundle.js.map
d38xvr37kwwhcm.cloudfront.net/js/grin-sdk.js?shop=brooklinen2.myshopify.comd38xvr37kwwhcm.cloudfront.net/js/grin-sdk.js.map
chat.siena.cx/dist/webchat.js?appKey=6afa5786-49a6-4754-8db6-4fff55ece886chat.siena.cx/dist/webchat.js.map
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
a.media--link > div.media--video > video > img a.media--link > div.media--video > video > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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