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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

29

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
players.brightcove.net/1239686373001/2ueMEJkwg_default/index.min.js300.0 s344.0 KiB
/transform/b576fa3e-20fe-47b1-859f-ea99905b4411/SLM-Black...900.0 s245.4 KiB
t.contentsquare.net/uxa/5eebbd0a3ad46.js900.0 s147.4 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
d230nbo8hrfeqy.cloudfront.net/d2f163cb.js600.0 s64.6 KiB
/transform/4dbdd516-cd4e-4048-96fb-cbada4c2f017/QCUHIILE2...900.0 s59.2 KiB
/transform/24e5d9f0-32bd-4f6f-b791-27a1d1df1ba9/SunsetPea...900.0 s50.0 KiB
tagging.bose.com/proxydirectory/tags/11012/tag.js1800.0 s49.9 KiB
/signals/config/614560262052456?v=2.9.303&r=stable&domain...1200.0 s45.0 KiB
bose23981z.btttag.com/btt.js43200.0 s42.2 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
assets.bounceexchange.com/cache/8533/website-3c6022abd982a87d58457a8b44a78ef6.js120.0 s18.6 KiB
edge.curalate.com/sites/bosetrial-bwg0vm/site/latest/site.min.js1800.0 s21.2 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591983.0 s185.2 KiB
cdn.cquotient.com/js/v2/gretel.min.js3600.0 s21.3 KiB
/transform/39a7a70c-1108-47f1-a14e-c7b841bf0f95/15_shot10...900.0 s18.7 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591983.0 s171.4 KiB
/transform/33c2ff63-b9a1-4b4b-878c-0965e48860d9/SLHM_Warm...900.0 s14.6 KiB
/transform/667a70bc-3053-4cab-a083-832458ef1769/QCUHIILE2...900.0 s13.4 KiB
/transform/7c05ef9a-9753-4b72-8589-3f9b2e00f325/UOEBLE26-...900.0 s13.3 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591980.0 s96.5 KiB
/transform/4d6f0e9d-5e83-4fba-907b-2275299cc4b7/1632x1224...900.0 s10.0 KiB
c.amazon-adsystem.com/aat/amzn.js0.0 ms8.9 KiB
pixel.byspotify.com/ping.min.js3600.0 s10.3 KiB
edqprofservus.blob.core.windows.net/assets/1.6.3/pro-web.css0.0 ms6.9 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591982.0 s66.9 KiB
tag.wknd.ai/8533/i.js60.0 s4.5 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591968.0 s42.2 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591974.0 s41.2 KiB
/transform/f165bc99-821b-455b-b4d0-5427fafc6da2/QCUHIILE2...900.0 s4.3 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591967.0 s41.0 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591974.0 s40.6 KiB
/transform/c19023f9-6a68-4c38-8e2b-6d07572feaa3/QCUHII26-...900.0 s4.3 KiB
/transform/1bb17ac6-df7c-4d03-a847-68c8301764a1/SLFLXII_C...900.0 s4.2 KiB
/transform/24e5d9f0-32bd-4f6f-b791-27a1d1df1ba9/SunsetPea...900.0 s4.2 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591980.0 s40.2 KiB
zn8hzinwseotwpdiy-bose.siteintercept.qualtrics.com/SIE/?Q_ZID=ZN_8HzINwseoTWPdIy3600.0 s4.6 KiB
/transform/eea23e96-4ff0-4e15-973f-d1de94d8bbb9/SF_QCEB25...900.0 s4.1 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...604800.0 s35.8 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591974.0 s37.1 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591984.0 s36.7 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591974.0 s35.7 KiB
/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c124171768917...86400.0 s6.9 KiB
s.pinimg.com/ct/lib/main.10d2511a.js1209600.0 s27.6 KiB
534003555.collect.igodigital.com/collect.js0.0 ms2.4 KiB
/dxjsmodule/37.7ea1ffe71ad8c0799cc1.chunk.js?Q_CLIENTVERS...604800.0 s18.6 KiB
ct.pinterest.com/static/ct/token_create.js7200.0 s2.2 KiB
s.pinimg.com/ct/core.js7200.0 s2.1 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591485.0 s15.3 KiB
edqprofservus.blob.core.windows.net/assets/1.6.3/global-intuitive-unicorn.css0.0 ms1.3 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591983.0 s13.2 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2590699.0 s11.0 KiB
/state/js?website_id=8533&device_id=7971835450937528096&v...0.0 ms1008 B
/config/com/a9cbe6be-52c7-4a72-a4aa-287b22bb9c37.js?v=3.5...0.0 ms781 B
/rp.gif?ts=1776899753441&id=t2_55cukgph&event=PageVisit&m...0.0 ms666 B
/pebble?tla=bjkb-Bose_US&activityType=viewPage&callback=C...0.0 ms590 B
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591981.0 s3.3 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591982.0 s3.0 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...2591981.0 s2.1 KiB
/pixel/capture?tags=bose_ucp&referer=&page_url=https%3A%2...0.0 ms184 B
/_/set_cookie?val=rYMg5rmum6t%2B%2Fsr9EoVAfa0gK9YSJdfgCQu...0.0 ms48 B
/tr/?id=614560262052456&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B

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
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...45 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...35 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...35 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...35 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...30 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...30 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...30 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...30 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...30 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:119.971 source:map[column:31222 line:2 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js 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:3.361 source:map[type:text value:[unattributed]]] map[reflowTime:2.944 source:map[column:458865 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:2.658 source:map[column:53291 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:0.197 source:map[column:53349 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:0.156 source:map[column:53413 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:0.237 source:map[column:52637 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:41.7 source:map[column:52615 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:2.668 source:map[column:54326 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:8.8 source:map[column:395936 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:0.176 source:map[column:335865 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:6.068 source:map[column:401186 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:8.732 source:map[column:405400 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:2.624 source:map[column:17173 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:2.631 source:map[column:17539 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:2.511 source:map[column:18528 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:2.178 source:map[column:28703 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:3.028 source:map[column:28912 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:5.009 source:map[column:24944 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:1.831 source:map[column:568557 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:0.282 source:map[column:565977 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:0.542 source:map[column:197705 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:0.125 source:map[column:30608 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/nonCriticalCheckoutScripts.js urlProvider:network]] map[reflowTime:22.195 source:map[column:119493 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:22.499 source:map[column:119702 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:23.146 source:map[column:115734 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:7.712 source:map[column:154359 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]] map[reflowTime:7.369 source:map[column:411722 line:1 type:source-location url:https://www.bose.com/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889930907/js/main.js urlProvider:network]]]

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
Bose SoundLink Micro Portable Speaker (2nd Gen), Ultra Open Earbuds, and Bose P… div.editorial-card > div.editorial-card__image-container > picture.js-n-image-responsive > img.editorial-card__image
/transform/b576fa3e-20fe-47b1-859f-ea99905b4411/SLM-Black...244.3 KiB188.9 KiB
Man driving an automobile with Bose speakers div.container > div.editorial-card > div.editorial-card__image-container > div.js-lazy-load-image__placeholder
/transform/39a7a70c-1108-47f1-a14e-c7b841bf0f95/15_shot10...18.1 KiB18.1 KiB

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
value: No additional origins are good candidates for preconnecting

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
534003555.collect.igodigital.com/collect.js2.4 KiB1.0 s
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...15.3 KiB151 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...171.4 KiB2.1 s

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

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

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: 1.6 s
URLTime Spent
bose.com/803 ms
www.bose.com/783 ms
www.bose.com/home0.0 ms

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

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: 980 ms 174.8 KiB
URLTransfer SizeEst Savings
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...171.2 KiB160.4 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...15.0 KiB14.5 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: 300 ms 833.4 KiB
URLTransfer SizeEst Savings
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...184.9 KiB122.0 KiB
/assets/smart-tag/versioned/main-v2_9e4958801741d4d875ab9...146.2 KiB99.6 KiB
b4fbcb118aa4.cdn4.forter.com/sn/b4fbcb118aa4/script.js218.1 KiB88.0 KiB
t.contentsquare.net/uxa/5eebbd0a3ad46.js146.9 KiB77.8 KiB
www.googletagmanager.com/gtag/js?id=G-XKSN6Q02ZN&cx=c&gtm=4e64k1168.6 KiB63.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-MT3DPNX&gtm=4e64k1146.2 KiB59.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-N8B39BX&gtm=4e64k1132.3 KiB59.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-K63WC3N150.9 KiB55.3 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js109.2 KiB54.3 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...66.6 KiB47.9 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB37.0 KiB
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...35.7 KiB25.3 KiB
bose23981z.btttag.com/btt.js42.0 KiB22.2 KiB
tagging.bose.com/proxydirectory/tags/11012/tag.js49.5 KiB21.2 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
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...1.7 s512 ms58 ms
www.bose.com/home1.6 s80 ms12 ms
Unattributable1.1 s220 ms0.0 ms
bose23981z.btttag.com/btt.js704 ms233 ms15 ms
www.googletagmanager.com/gtm.js?id=GTM-K63WC3N636 ms537 ms44 ms
js-agent.newrelic.com/nr-loader-spa-1.308.0.min.js633 ms525 ms5.1 ms
b4fbcb118aa4.cdn4.forter.com/sn/b4fbcb118aa4/script.js558 ms489 ms31 ms
t.contentsquare.net/uxa/5eebbd0a3ad46.js358 ms282 ms71 ms
www.googletagmanager.com/gtag/js?id=G-XKSN6Q02ZN&cx=c&gtm=4e64k1326 ms284 ms36 ms
www.googletagmanager.com/gtm.js?id=GTM-N8B39BX&gtm=4e64k1302 ms252 ms35 ms
www.googletagmanager.com/gtm.js?id=GTM-MT3DPNX&gtm=4e64k1295 ms255 ms35 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js234 ms193 ms38 ms
/assets/smart-tag/versioned/main-v2_9e4958801741d4d875ab9...177 ms133 ms41 ms
d230nbo8hrfeqy.cloudfront.net/d2f163cb.js160 ms139 ms17 ms
js-agent.newrelic.com/nr-spa-1.308.0.min.js151 ms137 ms7.9 ms
/assets/smart-tag/versioned/cjs_min_92abedfd1b9757a428bfc...136 ms125 ms8.1 ms
sc-static.net/scevent.min.js112 ms100 ms6.2 ms
connect.facebook.net/en_US/fbevents.js110 ms84 ms26 ms
/dxjsmodule/12.1a2b7192fd54e87d3971.chunk.js?Q_CLIENTVERS...101 ms64 ms9.3 ms
/signals/config/614560262052456?v=2.9.303&r=stable&domain...96 ms79 ms16 ms
cdn.cquotient.com/js/v2/gretel.min.js88 ms80 ms5.7 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...75 ms0.0 ms0.0 ms
edge.curalate.com/sites/bosetrial-bwg0vm/site/latest/site.min.js72 ms27 ms8.9 ms
(program):267 ms57 ms0.0 ms
static.ads-twitter.com/uwt.js65 ms60 ms3.4 ms
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...64 ms13 ms20 ms
s.pinimg.com/ct/lib/main.10d2511a.js61 ms51 ms8.3 ms
/assets/smart-tag/versioned/websdk-v2_04a8259886e8489210a...55 ms51 ms2.4 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 Evaluation5.4 s
Style & Layout2.1 s
Other1.9 s
Script Parsing & Compilation635 ms
Rendering148 ms
Parse HTML & CSS143 ms
Garbage Collection123 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable

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: 0.0 ms 6.2 KiB
URLTransfer SizeEst Savings
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...10.7 KiB6.2 KiB

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
players.brightcove.net/1239686373001/2ueMEJkwg_default/index.min.js344.0 KiB
/transform/b576fa3e-20fe-47b1-859f-ea99905b4411/SLM-Black...245.4 KiB
b4fbcb118aa4.cdn4.forter.com/sn/b4fbcb118aa4/script.js218.6 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...185.2 KiB
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...171.4 KiB
www.googletagmanager.com/gtag/js?id=G-XKSN6Q02ZN&cx=c&gtm=4e64k1168.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-K63WC3N151.3 KiB
t.contentsquare.net/uxa/5eebbd0a3ad46.js147.4 KiB
/assets/smart-tag/versioned/main-v2_9e4958801741d4d875ab9...146.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-MT3DPNX&gtm=4e64k1146.2 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
Bose SoundLink Home Bluetooth Speaker tdt a.image-container-product-url > div.image-container > picture.product-tile__picture > img.tile-image
/transform/33c2ff63-b9a1-4b4b-878c-0965e48860d9/SLHM_Warm...
Bose QuietComfort Ultra Headphones (2nd Gen) tdt a.image-container-product-url > div.image-container > picture.product-tile__picture > img.tile-image
/transform/667a70bc-3053-4cab-a083-832458ef1769/QCUHIILE2...
Bose SoundLink Flex Portable Speaker (2nd Gen) tdt a.image-container-product-url > div.image-container > picture.product-tile__picture > img.tile-image
/transform/4d6f0e9d-5e83-4fba-907b-2275299cc4b7/1632x1224...
Bose Ultra Open Earbuds tdt a.image-container-product-url > div.image-container > picture.product-tile__picture > img.tile-image
/transform/7c05ef9a-9753-4b72-8589-3f9b2e00f325/UOEBLE26-...
Bose div.navbar-header > div.header__nav-wrapper > a.logo > img.logo__img
/on/demandware.static/Sites-Bose_US-Site/-/default/dwee64...

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

●Layout shift culprits
●Optimize DOM size
●LCP breakdown
●LCP request discovery
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 8 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 4 animated elements found
●Network Requests
●Network Round Trip Times 170 ms
●Server Backend Latencies 410 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 200 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
100

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.

○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
●`[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.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[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.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●ARIA IDs are unique
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[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.
○Image elements have `[alt]` attributes
○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.
○No element has a `[tabindex]` value greater than 0
○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
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○Elements with visible text labels have matching accessible names.
○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.
77

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
Unload event listeners are deprecated and will be removed.
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889... line 1, col 407698
AttributionReporting
bose23981z.btttag.com/btt.js
SharedStorage
c.amazon-adsystem.com/aat/amzn.js line 1, col 7935

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
www.bose.com/home
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed.
www.bose.com/home
Attestation check for Shared Storage on https://ara.paa-reporting-advertising.amazon failed.
EdqDemandware.sfra/../src/utils/edq-utils.ts? line 21, col 27
SyntaxError: Failed to execute 'querySelector' on 'Document': '[name=]' is not a valid selector. at Object.addEventOnElement (webpack://EdqDemandware.sfra/../src/utils/edq-utils.ts?:22:28) at Object.sfraUtilsConfiguration (webpack://EdqDemandware.sfra/../src/sfra.ts?:171:21) at https://www.bose.com/home:8740:27
www.googletagmanager.com/gtm.js?id=GTM-K63WC3N line 195, col 503
Uncaught [object Object]
www.googletagmanager.com/gtm.js?id=GTM-K63WC3N line 195, col 503
Uncaught [object Object]

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
/on/demandware.static/Sites-Bose_US-Site/-/en_US/v1776889...
/assets/smart-tag/versioned/main-v2_9e4958801741d4d875ab9...
s.pinimg.com/ct/lib/main.10d2511a.jss.pinimg.com/ct/lib/main.10d2511a.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
b4fbcb118aa4.cdn4.forter.com/sn/b4fbcb118aa4/script.js
●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 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

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.bose.com/trade-upLearn more
/?utm_source=bose.com&utm_medium=referral&utm_content=hom...LEARN MORE
www.bose.com/buy-direct-from-bose#90-day_return_policyLearn more
www.bose.com/buy-direct-from-bose#price-match-promiseLearn more
www.bose.com/buy-direct-from-bose#Shipping_and_returnsLearn more
www.bose.com/my-bose-account-perksLearn more
www.bose.com/support/bm-safety-serviceLEARN MORE

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 are crawlable
●robots.txt is valid
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`
○Image elements have `[alt]` attributes

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