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Lighthouse Desktop

· 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
cdn.permutive.com/289d106c-df24-4cd9-a9fa-753e928c23ad-web.js900.0 s250.5 KiB
/js/stocks/market-chart/production/bmw-market-chart.umd.js30.0 s135.9 KiB
cdn.optimizely.com/js/30066350836.js120.0 s83.8 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s90.9 KiB
/js/stocks/market-board/production/bmw-market-board.umd.js30.0 s59.2 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
/js/stocks/currency-converter/production/bmw-currency-con...30.0 s55.9 KiB
/js/stocks/recently-viewed-stock/production/bmw-recently-...30.0 s54.7 KiB
/js/stocks/market-status/production/bmw-market-status.umd.js30.0 s54.3 KiB
d6vbkv8rsyksv.cloudfront.net/prod/comscore/comscore.v7.11.1.js0.0 ms53.1 KiB
/js/stocks/market-movers/production/bmw-market-movers.umd.js30.0 s50.3 KiB
/5rJjPRoNo_MlaGcpOA6YOlm0Fmw/gpt_and_prebid/config.js1100.0 s55.8 KiB
s3.us-west-2.amazonaws.com/application-mia-player-prod.rubiconproject.com/pub.js0.0 ms38.5 KiB
/bellmediainc/BWIHLMQTCBF4VFWLPIVITISWE4.jpg0.0 ms37.6 KiB
cdn.jwplayer.com/libraries/F9MbmUlD.js180.0 s37.5 KiB
static.chartbeat.com/js/chartbeat_video.js7200.0 s24.8 KiB
ssl.p.jwpcdn.com/player/v/8.18.4/jwpsrv.js900.0 s18.0 KiB
/js/sdkloader/vpaid_adapter.js?adtagurl=https://pubads.g....900.0 s14.2 KiB
pagead2.googlesyndication.com/omsdk/releases/live/omweb-v1.js3600.0 s15.4 KiB
static.chartbeat.com/js/chartbeat_mab.js7200.0 s10.1 KiB
s.go-mpulse.net/boomerang/C2TG3-67X75-LYLC6-7G5RL-VJS4C604800.0 s56.8 KiB
www.queryly.com/js/queryly.v4.min.js14400.0 s7.9 KiB
www.gstatic.com/eureka/clank/147/cast_sender.js86400.0 s13.4 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js86400.0 s6.7 KiB
static.themebuilder.aws.arc.pub/bellmediainc/1717607291582.svg0.0 ms2.0 KiB
tru.am/scripts/ta-pagesocial-sdk.js2419200.0 s10.9 KiB
config.aps.amazon-adsystem.com/configs/37333600.0 s1.0 KiB
www.queryly.com/images/whitecloseicon.png14400.0 s1.1 KiB
/p?c1=19&c2=3005664&ns_ap_an=BNN%20Bloomberg%20-%20Canada...0.0 ms300 B
/usersync?aid=1000011&gdpr=0&gdpr_consent=0&us_privacy=&u...0.0 ms205 B
/usersync?aid=1000013&gdpr=0&gdpr_consent=0&us_privacy=&u...0.0 ms205 B
/usersync?aid=1000015&gdpr=0&gdpr_consent=0&us_privacy=&u...0.0 ms205 B
/usersync?aid=1000018&gdpr=0&gdpr_consent=&uuid=343021162...0.0 ms205 B
/usersync?aid=1000026&gdpr=0&gdpr_consent=0&us_privacy=&u...0.0 ms205 B
/usersync?aid=1000032&gdpr=0&gdpr_consent=0&us_privacy=&u...0.0 ms205 B
/track/cmf/generic?ttd_pid=0kkyw3l&ttd_tpi=1&gdpr=0&gdpr_...0.0 ms149 B
/su?gdpr=0&gdpr_consent=0&tpid=22144&cburl=https%3A%2F%2F...0.0 ms125 B
sync.bfmio.com/syncb?pid=111&gdpr=0&gdpr_consent=0&us_privacy=0.0 ms118 B
sync.sxp.smartclip.net/sync?type=red&dsp=116&gdpr_consent=0&ang_testid=10.0 ms104 B
/AdServer/ImgSync?p=157310&gdpr=0&gdpr_consent=0&pu=https...0.0 ms69 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:0.208795] map[score:0.206288 subItems:map[items:[map[cause:Unsized image element] map[cause:Web font extra:map[type:url value:https://www.bnnbloomberg.ca/pf/resources/fonts/Inter-Bold.ttf?d=208&mxId=00000000]] map[cause:Web font extra:map[type:url value:https://www.bnnbloomberg.ca/pf/resources/fonts/Inter-Regular.ttf?d=208&mxId=00000000]]] type:subitems]] map[node:map[boundingRect:map[bottom:96 height:114 left:257 right:1121 top:-17 width:864] lhId:page-20-NAV nodeLabel:Trade War BNN Bloomberg App TSX S&P 500 DOW Investing Watch Market Call Shows path:1,HTML,1,BODY,1,DIV,0,DIV,0,HEADER,0,NAV,0,DIV,2,NAV selector:header.c-stack > nav#main-nav > div.b-header-nav-chain-custom__top-layout > nav.c-stack snippet:<nav aria-label="Top Links" class="c-stack b-header-nav-chain-custom__links-list" data-style-direction="horizontal" data-style-justification="start" data-style-alignment="center" data-style-inline="false" data-style-wrap="wrap"> type:node] score:0.002507 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3014 height:159 left:687 right:971 top:2855 width:284] lhId:page-18-IMG nodeLabel:article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image path:1,HTML,1,BODY,1,DIV,0,DIV,1,MAIN,1,DIV,6,DIV,1,DIV,2,ARTICLE,0,DIV,0,A,0,IMG selector:article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image snippet:<img data-chromatic="ignore" alt="" class="c-image b-standard-list-custom__item-image b-standard-list-custom__item-im…" loading="lazy" src="https://www.bnnbloomberg.ca/resizer/v2/https%3A%2F%2Fd3g70guqh4mw9g.cloudf…" srcset="https://www.bnnbloomberg.ca/resizer/v2/https%3A%2F%2Fd3g70guqh4mw9g.cloudf…" width="274" pinger-seen="true"> type:node]]] type:subitems]]]
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:0.015579] map[node:map[boundingRect:map[bottom:206 height:114 left:311 right:1039 top:92 width:728] lhId:page-21-DIV nodeLabel:ADVERTISEMENT path:1,HTML,1,BODY,1,DIV,0,DIV,1,MAIN,0,DIV,0,DIV,0,DIV selector:main#main > div.c-stack > div.c-stack > div.b-ads-custom__wrapper snippet:<div class="b-ads-custom__wrapper b-ads-custom__label--left "> type:node] score:0.015579 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:60 height:42 left:112 right:225 top:19 width:113] lhId:page-22-IMG nodeLabel:BNN Bloomberg path:1,HTML,1,BODY,1,DIV,0,DIV,0,HEADER,0,NAV,0,DIV,1,A,0,IMG selector:nav#main-nav > div.b-header-nav-chain-custom__top-layout > a.c-link > img.c-image snippet:<img alt="BNN Bloomberg" class="c-image" src="https://static.themebuilder.aws.arc.pub/bellmediainc/1717607291582.svg" width="200"> type:node]]] type:subitems]]]

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.

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:33.77 source:map[column:7819 line:6 type:source-location url:https://www.bnnbloomberg.ca/pf/resources/js/newrelic.js?d=208 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:126.717 source:map[type:text value:[unattributed]]] map[reflowTime:33.77 source:map[column:399597 line:1 type:source-location url:https://www.bnnbloomberg.ca/pf/dist/components/combinations/default.js?d=208&mxId=00000000 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
Hormuz reopening not like 'flipping a switch' for rattled oil markets: professor article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/F2NNQHSFN754ZIK26XLOYKTQWU.jpg?smart=true&aut...173.1 KiB158.9 KiB
/resizer/v2/https://assets.bwbx.io/images/users/i4YKw4LYf...115.6 KiB108.7 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...106.1 KiB97.7 KiB
/resizer/v2/https://assets.bwbx.io/images/users/i4YKw4LYf...65.6 KiB61.5 KiB
In a B.C. industrial zone, a new link forged in Canada's crucial lithium supply… div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/CCBNRTNCBSWJJLTWAIL77PK4UI.jpg?smart=true&aut...66.5 KiB59.1 KiB
/resizer/v2/2267WUZOYNSV33O6B7VT4XNTAE.jpg?smart=true&aut...61.6 KiB54.8 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...49.2 KiB45.3 KiB
How 50 days of the Iran war led to the loss of US$50 billion worth of oil article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/YVRGAS5YRK7YCDWK4RNZC7HLU4.jpg?smart=true&aut...48.3 KiB43.1 KiB
/resizer/v2/Y64DGON6OQGNVHR2UXOFJWI2EA.jpg?smart=true&aut...43.3 KiB38.6 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...40.3 KiB37.6 KiB
U.S. stocks rally to records, but Brent oil also tops US$100 on worries about t… div.c-stack > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/ZFBDNZ7A2AVQLMVBGGE22D3GRI.jpg?smart=true&aut...64.1 KiB36.5 KiB
/bellmediainc/BWIHLMQTCBF4VFWLPIVITISWE4.jpg37.0 KiB35.6 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...38.1 KiB35.0 KiB
U.S. Supreme Court rules for Michigan in its fight to shut down an aging energy… div.c-stack > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/ZNUN3USAULI27MKYPEPL5JTVGA.jpg?smart=true&aut...57.8 KiB32.9 KiB
Alberta think tank urges PM Carney to reach industrial carbon price agreement w… article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/G2FX2NW3R4SXQIKN6M2RDOH6YA.jpg?smart=true&aut...29.8 KiB26.7 KiB
PM Carney says U.S. will not dictate free trade talks, U.S. senator grills Lutn… article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/IBYLV7VVL5AJZI553DSNFSWAJU.JPG?smart=true&aut...27.6 KiB24.8 KiB
Canada, U.S. trade systems ‘don’t fit together very well,’ Greer says article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/A63O5FC6SBCV3O2QJCJQ43L3NA.jpg?smart=true&aut...26.4 KiB23.6 KiB
AP Exclusive: Europe has ‘maybe 6 weeks of jet fuel left,’ energy agency head w… div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/2GEQSFNIXL4W26HK7LBJDQAO6A.jpg?smart=true&aut...25.0 KiB22.2 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...22.8 KiB21.3 KiB
Andrey Omelchak’s Top Picks for April 22, 2024 article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/GPGJ5MS4NZHPRDML25OFPVALHE.PNG?smart=true&aut...21.5 KiB19.2 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...20.3 KiB18.9 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...17.5 KiB16.3 KiB
Hot Picks: Canadian stocks seen as buying opportunity amid AI concerns article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/4VWT74NWHTUOLTYWXGA527VLVA.jpg?smart=true&aut...17.9 KiB16.1 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...14.5 KiB13.3 KiB
article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image article.c-stack > div.b-standard-list-custom__item__image-wrapper > a.c-link > img.c-image
/resizer/v2/https://d3g70guqh4mw9g.cloudfront.net/04-22-2...13.8 KiB12.8 KiB

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:6251.562 label:Time to first byte subpart:timeToFirstByte] map[duration:372.664 label:Resource load delay subpart:resourceLoadDelay] map[duration:78.497 label:Resource load duration subpart:resourceLoadDuration] map[duration:483.307 label:Element render delay subpart:elementRenderDelay]]
lhId: page-6-IMG
nodeLabel: U.S. stocks rally to records, but Brent oil also tops US$100 on worries about t…
path: 1,HTML,1,BODY,1,DIV,0,DIV,1,MAIN,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,ARTICLE,0,DIV,1,FIGURE,0,A,0,IMG
selector: div.c-stack > figure.c-media-item > a.c-link > img.c-image
snippet: <img data-chromatic="ignore" alt="U.S. stocks rally to records, but Brent oil also tops US$100 on worries ab…" class="c-image" loading="lazy" src="https://www.bnnbloomberg.ca/resizer/v2/ZFBDNZ7A2AVQLMVBGGE22D3GRI.jpg?smar…" srcset="https://www.bnnbloomberg.ca/resizer/v2/ZFBDNZ7A2AVQLMVBGGE22D3GRI.jpg?smar…" width="800" height="450" pinger-seen="true">

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-6-IMG
nodeLabel: U.S. stocks rally to records, but Brent oil also tops US$100 on worries about t…
path: 1,HTML,1,BODY,1,DIV,0,DIV,1,MAIN,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,ARTICLE,0,DIV,1,FIGURE,0,A,0,IMG
selector: div.c-stack > figure.c-media-item > a.c-link > img.c-image
snippet: <img data-chromatic="ignore" alt="U.S. stocks rally to records, but Brent oil also tops US$100 on worries ab…" class="c-image" loading="lazy" src="https://www.bnnbloomberg.ca/resizer/v2/ZFBDNZ7A2AVQLMVBGGE22D3GRI.jpg?smar…" srcset="https://www.bnnbloomberg.ca/resizer/v2/ZFBDNZ7A2AVQLMVBGGE22D3GRI.jpg?smar…" width="800" height="450" pinger-seen="true">

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.

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

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.

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: 246 ms
URLTime Spent
bnnbloomberg.ca/246 ms
www.bnnbloomberg.ca/0.0 ms

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 6.0 s
URLTime Spent
www.bnnbloomberg.ca/6.1 s

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
0.206
ADVERTISEMENT main#main > div.c-stack > div.c-stack > div.b-ads-custom__wrapper
0.016
Trade War BNN Bloomberg App TSX S&P 500 DOW Investing Watch Market Call Shows header.c-stack > nav#main-nav > div.b-header-nav-chain-custom__top-layout > nav.c-stack
0.003

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

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.

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: 370 ms 2.2 MiB
URLTransfer SizeEst Savings
lib.jasperplayer.com/14.0.0/jasper.umd.production.min.js1.2 MiB1014.4 KiB
/pf/dist/components/combinations/default.js?d=208&mxId=00...530.8 KiB375.8 KiB
/js/stocks/market-chart/production/bmw-market-chart.umd.js135.5 KiB99.2 KiB
/pagead/managed/js/gpt/m202604210101/pubads_impl.js?cb=31...187.5 KiB94.3 KiB
imasdk.googleapis.com/js/sdkloader/ima3.js145.6 KiB82.0 KiB
cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js141.5 KiB76.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-TQ2X4MCR&l=mp_data_layer120.2 KiB65.3 KiB
www.googletagmanager.com/gtag/js?id=AW-614080696&l=mp_data_layer&cx=c&gtm=4e64k0137.4 KiB60.5 KiB
micro.rubiconproject.com/prebid/dynamic/13126.js127.0 KiB45.4 KiB
cdn.optimizely.com/js/30066350836.js83.2 KiB42.5 KiB
d6vbkv8rsyksv.cloudfront.net/prod/comscore/comscore.v7.11.1.js52.7 KiB34.4 KiB
s.go-mpulse.net/boomerang/C2TG3-67X75-LYLC6-7G5RL-VJS4C56.6 KiB32.0 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.1 KiB
/js/stocks/currency-converter/production/bmw-currency-con...55.5 KiB28.3 KiB
/js/stocks/recently-viewed-stock/production/bmw-recently-...54.3 KiB27.4 KiB
/js/stocks/market-status/production/bmw-market-status.umd.js53.8 KiB27.2 KiB
/js/stocks/market-movers/production/bmw-market-movers.umd.js49.9 KiB25.9 KiB
www.bnnbloomberg.ca/pf/dist/engine/react.js?d=208&mxId=00000000128.2 KiB25.2 KiB
c.amazon-adsystem.com/aax2/apstag.js58.9 KiB24.8 KiB
ssl.p.jwpcdn.com/player/v/8.18.4/jwplayer.core.controls.js71.0 KiB23.6 KiB
www.bnnbloomberg.ca/pf/dist/components/combinations/4.chunk.js?d=20850.2 KiB23.2 KiB
cdn.permutive.com/289d106c-df24-4cd9-a9fa-753e928c23ad-web.js249.9 KiB20.1 KiB

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 Evaluation2.9 s
Other603 ms
Style & Layout391 ms
Script Parsing & Compilation368 ms
Rendering252 ms
Garbage Collection48 ms
Parse HTML & CSS40 ms

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
Minify JavaScript
User Timing marks and measures 9 user timings
Avoid long main-thread tasks 9 long tasks found
Avoid non-composited animations 1 animated element found
Image elements have explicit `width` and `height`
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 260 ms
Server Backend Latencies 850 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
INP breakdown
92

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.

ARIA

ARIA roles must have valid values in order to perform their intended accessibility functions. Learn more about valid ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.bmw-currency-converter div.bmw-currency-converter

Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section.bmw-market-chart section.bmw-market-chart
div.bmw-currency-converter div.bmw-currency-converter

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[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
`[aria-hidden="true"]` elements do not contain focusable descendents
Background and foreground colors have a sufficient contrast ratio
Document has a `<title>` element
`<frame>` or `<iframe>` elements have a title
`<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
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
`[lang]` attributes have a valid value
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Uses ARIA roles only on compatible elements
Elements with visible text labels have matching accessible names.
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
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
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
ARIA IDs are unique
No form fields have multiple labels
`<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
Form elements have associated labels
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.
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Image elements do not have `[alt]` attributes that are redundant text.
Identical links have the same purpose.
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
Topics

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
Access to XMLHttpRequest at 'https://ib.adnxs.com/getuidj?gdpr=0' from origin 'https://www.bnnbloomberg.ca' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Failed to load resource: net::ERR_FAILED
Failed to load resource: the server responded with a status of 400 (Bad Request)
Failed to load resource: the server responded with a status of 404 (Not Found)
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
No auth token provided for resizer
Uncaught (in promise) Error
Uncaught (in promise) jDt: Unknown manifest type

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.

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 clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Redirects HTTP traffic to HTTPS
100

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.

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
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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