Skip to content
https://ctvnews.ca

Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

37

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
cdn.optimizely.com/js/23126880952.js120.0 s90.2 KiB
/js/weather/summarised-weather/production/bmw-summarised-...30.0 s85.3 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s91.0 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
d6vbkv8rsyksv.cloudfront.net/prod/comscore/comscore.v7.11.1.js0.0 ms53.1 KiB
/5rJjPRoNo_MlaGcpOA6YOlm0Fmw/gpt_and_prebid/config.js1100.0 s57.6 KiB
/js/weather/weather-search-bar/bmw-weather-search-bar.umd.js30.0 s42.0 KiB
s3.us-west-2.amazonaws.com/application-mia-player-prod.rubiconproject.com/pub.js0.0 ms38.5 KiB
static.chartbeat.com/js/chartbeat_video.js86400.0 s24.8 KiB
s.go-mpulse.net/boomerang/W5WKL-JYFXQ-HECWN-RZELJ-P77RB604800.0 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
static.chartbeat.com/js/chartbeat_mab.js86400.0 s10.1 KiB
static.themebuilder.aws.arc.pub/bellmediainc/1730923620658.svg0.0 ms3.0 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js86400.0 s6.7 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=CTV%20News%20%E2%80%93%20Bre...0.0 ms298 B
/usersync?aid=1000011&gdpr=0&gdpr_consent=0&us_privacy=&u...0.0 ms205 B
/usersync?aid=1000012&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=756378436...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:0.213607] map[node:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-38-DIV nodeLabel:Live Coverage path:1,MAIN,1,DIV,0,DIV,0,DIV,2,DIV selector:div.c-stack > div.c-stack > div.c-grid > div.c-stack snippet:<div class="c-stack b-triple-chain-custom__item--last " data-style-direction="vertical" data-style-justification="start" data-style-alignment="unset" data-style-inline="false" data-style-wrap="nowrap"> type:node] score:0.213607 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-44-IMG nodeLabel:‘Kind of embarrassing’: Doug Ford says Ontario should have a jet, but he won’t … path:1,MAIN,1,DIV,0,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="‘Kind of embarrassing’: Doug Ford says Ontario should have a jet, but he w…" class="c-image" loading="lazy" src="https://www.ctvnews.ca/resizer/v2/4KRYQ4EY55CY3BXRHGNZMIUFWM.JPG?smart=tru…" srcset="https://www.ctvnews.ca/resizer/v2/4KRYQ4EY55CY3BXRHGNZMIUFWM.JPG?smart=tru…" width="800" height="450"> 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-43-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:51 height:22 left:112 right:248 top:29 width:136] lhId:page-45-IMG nodeLabel:CTVNews Logo 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__top-layout > a.c-link > img snippet:<img src="https://static.themebuilder.aws.arc.pub/bellmediainc/1730923620658.svg" alt="CTVNews Logo" data-chromatic="ignore"> 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.

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:101.606 source:map[type:text value:[unattributed]]]]

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
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/S3HQATI52RBRFG4OFPXC5K73SM.png?smart=true&aut...174.9 KiB155.2 KiB
Network of YouTube channels pushing U.S. annexation and Alberta secession narra… article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/PDMXPBUXAFD4DPVZDT5MAYYIWY.jpg?smart=true&aut...155.8 KiB142.2 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/04-21-2...87.7 KiB81.9 KiB
Shooting at Mexico pyramids that killed Canadian tourist was planned: officials article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/BDLL72RHZ65LH6Z7ES7S64GTNQ.jpg?smart=true&aut...91.3 KiB81.4 KiB
Queen Elizabeth II's life in pictures on what would have been her 100th birthday div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/3YNRRPMWNNFYFPL2KPXXBBCSH4.jpg?smart=true&aut...79.4 KiB78.6 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/04-21-2...81.9 KiB76.4 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/WJCRZHQRL5DSRKNZV54ZQBFILA.jpg?smart=true&aut...81.9 KiB69.2 KiB
New Canada-U.S. advisory council includes former premiers, ex-Conservative lead… div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/Q6PID6K7F5C6FIHTFN7NIFMLE4.jpg?smart=true&aut...69.4 KiB68.7 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/v2/5G3Q74LKUBF2FOX5RA5BXBLT6I.jpg?smart=true&aut...81.4 KiB68.0 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/04-21-2...72.6 KiB67.7 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/DICXOW5FSZHAFFWWVJFWEIOJLU.jpg?smart=true&aut...72.4 KiB63.4 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/04-21-2...67.7 KiB63.2 KiB
Alan Osmond, the eldest member of the Osmonds, has died at 76 div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/7A7JJ2MXTAOXMUDULLBSJ4T6TE.jpg?smart=true&aut...52.9 KiB52.3 KiB
F-35 manufacturer lands on Canadian soil to establish new jet maintenance depot article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/XBLPVD23KBBSDBCYQZVZ4MJLKE.png?smart=true&aut...57.8 KiB51.8 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/LIKCC57Y5RAVXHLAKONFV4JFCA.jpg?smart=true&aut...59.2 KiB48.4 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/D4CQEITFFVD2DIARQW2JDA7NYA.jpg?smart=true&aut...56.6 KiB47.9 KiB
WATCH: Video shows rescue of woman who nearly froze to death in northern Ontario div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/HCSKBBSSBJEZDD3WISI6ZJ5VRU.jpg?smart=true&aut...48.0 KiB47.5 KiB
Security guard shot after confronting robbery suspect at mall jewelry store article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/NVVF32UHDVGIPKI7OB4V5SCU3Y.JPG?smart=true&aut...53.0 KiB47.5 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/YRFORFH7YJDNDJ2LZCJNVV7PZ4.jpg?smart=true&aut...52.8 KiB43.1 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/RB6UMY2RFZFDHHXHEJPZY3QAAM.jpg?smart=true&aut...62.7 KiB41.2 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/G4TCTQR3JAGPZDLNRGHWJI6I4Y.jpg?smart=true&aut...42.2 KiB38.8 KiB
Death, disappearance of 10 scientists tied to sensitive U.S. research sparks fe… article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/FCUVYMD7M5PGRGAXPSDM7U46KQ.jpg?smart=true&aut...39.7 KiB35.6 KiB
Take a closer look at Drake's giant ice sculpture in downtown Toronto div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/3E3JM4DRMFEWXM7GUNJHJHTJCM.png?smart=true&aut...33.6 KiB33.2 KiB
‘They are part of my history’: Madonna pleads for the return of her vintage cos… div > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/G6T3IZHY3FAO7POSWNPBJUP6RM.jpg?smart=true&aut...29.4 KiB29.1 KiB
Actor Patrick Muldoon of ‘Days of Our Lives’ dead at 57 article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/U5VLLXIE2ZGW5HG6RRHIRJAUYE.jpg?smart=true&aut...32.6 KiB29.0 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/QFG356IQMWE44R2UKNGIWA44YQ.jpg?smart=true&aut...30.3 KiB27.9 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/04-21-2...29.7 KiB27.7 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/v2/7J32T5KHXVCDSGSEJP33O423QM.jpg?smart=true&aut...28.9 KiB24.7 KiB
Man fined for charging EV in condo parkade, tribunal hears article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/N5IWL2D5LRGMRDSF226NUMFHXU.jpg?smart=true&aut...26.3 KiB23.6 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/TZS27D3ZFEDGNXLFAT42MNCUZM.jpg?smart=true&aut...24.4 KiB22.7 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/04-21-2...22.6 KiB21.1 KiB
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
/resizer/v2/https://cloudfront-us-east-1.images.arcpublis...25.1 KiB19.5 KiB
Life of Queen Elizabeth II in pictures on what would have been her 100th birthd… div.c-stack > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/KJ4Y5QOEXFE2FCS626SGCEBDOQ.jpg?smart=true&aut...39.9 KiB18.1 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/04-21-2...18.5 KiB17.2 KiB
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
/resizer/v2/https://cloudfront-us-east-1.images.arcpublis...20.9 KiB16.2 KiB
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
/resizer/v2/https://cloudfront-us-east-1.images.arcpublis...17.0 KiB13.2 KiB
U.K. agrees ban on cigarette sales for people born after 2008 article.c-grid > figure.c-media-item > a.c-link > img.c-image
/resizer/v2/T3FWMKCRIZBTXEUJ5A6F64MOLU.JPG?smart=true&aut...14.3 KiB12.9 KiB

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-37-IMG
nodeLabel: ‘Kind of embarrassing’: Doug Ford says Ontario should have a jet, but he won’t …
path: 1,HTML,1,BODY,1,DIV,0,DIV,1,MAIN,1,DIV,0,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="‘Kind of embarrassing’: Doug Ford says Ontario should have a jet, but he w…" class="c-image" loading="lazy" src="https://www.ctvnews.ca/resizer/v2/4KRYQ4EY55CY3BXRHGNZMIUFWM.JPG?smart=tru…" srcset="https://www.ctvnews.ca/resizer/v2/4KRYQ4EY55CY3BXRHGNZMIUFWM.JPG?smart=tru…" 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.

URLTransfer SizeDuration
cdn.optimizely.com/js/23126880952.js90.2 KiB441 ms
stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css22.2 KiB323 ms
www.ctvnews.ca/pf/resources/js/newrelic.js?d=20623.3 KiB82 ms
www.ctvnews.ca/pf/dist/css/ctvnews.css?d=206&mxId=00000000110.0 KiB245 ms
www.ctvnews.ca/pf/dist/components/combinations/default.css?d=206&mxId=000000009.4 KiB

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: 384 ms
URLTime Spent
ctvnews.ca/384 ms
www.ctvnews.ca/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
Live Coverage div.c-stack > div.c-stack > div.c-grid > div.c-stack
0.214
ADVERTISEMENT main#main > div.c-stack > div.c-stack > div.b-ads-custom__wrapper
0.016

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.

Estimated savings: 80 ms 80.5 KiB
URLTransfer SizeEst Savings
www.ctvnews.ca/pf/dist/css/ctvnews.css?d=206&mxId=00000000109.6 KiB59.2 KiB
stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css21.6 KiB21.3 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: 370 ms 1.9 MiB
URLTransfer SizeEst Savings
lib.jasperplayer.com/14.0.0/jasper.umd.production.min.js1.2 MiB1014.4 KiB
www.ctvnews.ca/pf/dist/components/combinations/default.js?d=206&mxId=00000000521.7 KiB368.5 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...187.4 KiB93.0 KiB
cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js141.5 KiB76.8 KiB
cdn.optimizely.com/js/23126880952.js89.6 KiB45.2 KiB
micro.rubiconproject.com/prebid/dynamic/13126.js125.3 KiB43.5 KiB
c.amazon-adsystem.com/aax2/apstag.js90.6 KiB38.1 KiB
s.go-mpulse.net/boomerang/W5WKL-JYFXQ-HECWN-RZELJ-P77RB56.6 KiB37.0 KiB
d6vbkv8rsyksv.cloudfront.net/prod/comscore/comscore.v7.11.1.js52.7 KiB34.4 KiB
/js/weather/summarised-weather/production/bmw-summarised-...84.8 KiB32.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.1 KiB
s3.us-west-2.amazonaws.com/application-mia-player-prod.rubiconproject.com/pub.js37.9 KiB28.0 KiB
www.ctvnews.ca/pf/dist/engine/react.js?d=206&mxId=00000000128.2 KiB25.6 KiB
www.ctvnews.ca/pf/dist/components/combinations/4.chunk.js?d=20650.2 KiB24.1 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 reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
lib.jasperplayer.com/14.0.0/jasper.umd.production.min.js1.0 s876 ms126 ms
www.ctvnews.ca/pf/resources/js/newrelic.js?d=206563 ms532 ms1.1 ms
www.ctvnews.ca/562 ms16 ms15 ms
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...480 ms443 ms10 ms
cdn.permutive.com/289d106c-df24-4cd9-a9fa-753e928c23ad-web.js295 ms189 ms28 ms
Unattributable266 ms52 ms0.0 ms
www.ctvnews.ca/pf/dist/components/combinations/default.js?d=206&mxId=00000000117 ms69 ms47 ms
cdn.optimizely.com/js/23126880952.js84 ms67 ms10 ms
cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js77 ms65 ms9.7 ms
c.amazon-adsystem.com/aax2/apstag.js65 ms54 ms9.3 ms
micro.rubiconproject.com/prebid/dynamic/13126.js63 ms52 ms9.8 ms
/pagead/managed/js/activeview/current/ufs_web_display.js60 ms45 ms12 ms
www.ctvnews.ca/pf/dist/engine/react.js?d=206&mxId=0000000052 ms34 ms17 ms
js-agent.newrelic.com/nr-spa-1.306.0.min.js51 ms47 ms2.1 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 Evaluation2.7 s
Other448 ms
Script Parsing & Compilation332 ms
Rendering218 ms
Style & Layout211 ms
Garbage Collection44 ms
Parse HTML & CSS29 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
lib.jasperplayer.com/14.0.0/jasper.umd.production.min.js1.2 MiB
www.ctvnews.ca/pf/dist/components/combinations/default.js?d=206&mxId=00000000522.3 KiB
cdn.permutive.com/289d106c-df24-4cd9-a9fa-753e928c23ad-web.js250.5 KiB
/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31...187.4 KiB
/resizer/v2/S3HQATI52RBRFG4OFPXC5K73SM.png?smart=true&aut...175.4 KiB
/resizer/v2/PDMXPBUXAFD4DPVZDT5MAYYIWY.jpg?smart=true&aut...156.3 KiB
www.ctvnews.ca/pf/dist/engine/react.js?d=206&mxId=00000000142.0 KiB
cdn.confiant-integrations.net/gptprebidnative/202603241056/wrap.js141.8 KiB
micro.rubiconproject.com/prebid/dynamic/13126.js125.5 KiB
www.ctvnews.ca/pf/dist/css/ctvnews.css?d=206&mxId=00000000110.0 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
CTVNews Logo nav#main-nav > div.b-header-nav-chain__top-layout > a.c-link > img
static.themebuilder.aws.arc.pub/bellmediainc/1730923620658.svg

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

●Optimize DOM size
●Font display
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 9 user timings
●Avoid long main-thread tasks 14 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 240 ms
●Server Backend Latencies 230 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 510 ms
○INP breakdown
○Avoid non-composited animations
90

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
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image

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
div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link
div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link
div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link
div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link div.c-stack > article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-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.

○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>`
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●`[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
●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
●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.
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○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 have all required `[aria-*]` attributes
○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
○`[role]` values are valid
○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
○`<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
○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.
○Uses ARIA roles only on compatible elements
○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.
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
micro.rubiconproject.com/prebid/dynamic/13126.js line 23, col 84959

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.ctvnews.ca/
Access to XMLHttpRequest at 'https://ib.adnxs.com/getuidj?gdpr=0' from origin 'https://www.ctvnews.ca' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
ib.adnxs.com/getuidj?gdpr=0
Failed to load resource: net::ERR_FAILED
prebid-server.rubiconproject.com/cookie_sync
Failed to load resource: the server responded with a status of 400 (Bad Request)
/sip/api/keyauth/carrierIdFinderUrl?publisher_id=eaabeaf0...
Failed to load resource: the server responded with a status of 404 (Not Found)
www.ctvnews.ca/pf/resources/js/newrelic.js?d=206 line 5, col 8006
No auth token provided for resizer
lib.jasperplayer.com/14.0.0/jasper.umd.production.min.js line 1, col 2886604
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.

URLMap URL
www.ctvnews.ca/pf/dist/components/combinations/default.js?d=206&mxId=00000000
s3.us-west-2.amazonaws.com/application-mia-player-prod.rubiconproject.com/pub.js/application-mia-player-prod.rubiconproject.com/pub.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 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
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
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image
article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image article.b-promo-medium-manual-custom > div.b-promo-medium-manual-custom__right-container > a.c-link > img.c-image

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`

Send Feedback