Lighthouse Desktop

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

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.

Request	Cache TTL	Transfer Size
htlbid.com/v3/sandiegouniontribune.com/htlbid.js?ver=6.9.4	600.0 s	134.8 KiB
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.js?2026321	86400.0 s	291.9 KiB
cdn.adapex.io/hb/aaw.empowerlocal_c.js	14400.0 s	169.2 KiB
/portalimages/portalimages/ndIWDrEnpkaX6ZMYzgyRVQ.medium.png	172800.0 s	288.9 KiB
/portalimages/portalimages/mcqmnkuvrEKwH6jnv0Bl3Q.medium.png	172800.0 s	200.6 KiB
/portalimages/portalimages/GahuOJ27Jkq4NV4ClBAndw.medium.png	172800.0 s	198.7 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=5546	1800.0 s	62.7 KiB
/portalimages/portalimages/0RB43FpVJUyrpajP22VRhg.medium.png	172800.0 s	157.1 KiB
/portalimages/portalimages/T9DSFVqrbEqu0kekXlqUbg.medium.png	172800.0 s	155.7 KiB
/pushly-sdk.min.js?domain_key=5QIpV1GwE7xvFTvUeUuFIfXYXVb...	300.0 s	45.6 KiB
/portalimages/portalimages/yCfYOkWruUSSFSXAdUKmPw.medium.png	172800.0 s	122.5 KiB
/portalimages/portalimages/m4ZGBSVveUKVnEhfdxXOoQ.medium.png	172800.0 s	120.0 KiB
/portalimages/portalimages/siQdldmSV06_SaJkb9uJ6w.medium.png	172800.0 s	115.7 KiB
cdn.sophi.io/assets/demeter/1/stable/1073443563.js?ver=6.9.4	900.0 s	38.6 KiB
/portalimages/portalimages/BOjulPdSq0SEd0x74hmP7Q.medium.png	172800.0 s	109.9 KiB
/portalimages/portalimages/2d23f254-d43e-431a-ac78-981639...	172800.0 s	97.4 KiB
cdn.auth0.com/js/auth0-spa-js/1.13/auth0-spa-js.production.js?ver=6.9.4	10800.0 s	38.1 KiB
/portalimages/portalimages/vqaOS9t7oEWfUXnltJ_0QA.medium.png	172800.0 s	69.3 KiB
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.css?2026321	86400.0 s	50.4 KiB
sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js	3600.0 s	24.4 KiB
az416426.vo.msecnd.net/scripts/a/ai.0.js	1800.0 s	21.6 KiB
g2i.sandiegouniontribune.com/prod/dfm/g2i.min.js?2026321	86400.0 s	44.1 KiB
/wid/11821.jsx?b=592269049&on=aHR0cHM6Ly93d3cuc2FuZGllZ29...	7200.0 s	22.2 KiB
applepay.cdn-apple.com/jsapi/1.latest/apple-pay-sdk.js	1800.0 s	17.0 KiB
applepay.cdn-apple.com/jsapi/1.latest/apple-pay-button.js	1800.0 s	16.8 KiB
/portalimages/portalimages/KWfoe9B88USECYDAq3Zp_g.medium.png	172800.0 s	47.7 KiB
/portalimages/portalimages/bT0wn9O0_0eX7oW_rWgpMA.medium.jpg	172800.0 s	36.2 KiB
applepay.cdn-apple.com/jsapi/1.latest/apple-wallet-sdk.js	1800.0 s	11.1 KiB
/portalimages/portalimages/x35BI0xdoUeutXq0RX3q8Q.medium.jpg	172800.0 s	31.5 KiB
fp.sandiegouniontribune.com/prod/dfm/fp.min.js?2026321	86400.0 s	22.8 KiB
/portalimages/portalimages/SqxhxGElbkCagCLA_KHEFg.medium.jpg	172800.0 s	28.3 KiB
/portalimages/portalimages/cXAuXw15JUimgZcMhdwi0w.medium.jpg	172800.0 s	27.9 KiB
/portalimages/portalimages/pA21r9jMnU6-XKcBy5ASww.medium.jpg	172800.0 s	25.2 KiB
/portalimages/portalimages/XDFtdhx8Lk-FYHvFGfYWKQ.medium.jpg	172800.0 s	24.9 KiB
s.cdn.gcprivacy.net/gcid_s.min.js	3600.0 s	8.8 KiB
/portalimages/portalimages/kKBv8-S_dU2WOW3h1vXIrg.medium.jpg	172800.0 s	22.8 KiB
/portalimages/portalimages/VMmlYWR1nkmnlTwZR0mksQ.medium.jpg	172800.0 s	14.8 KiB
sdk.mrf.io/statics/compass-multimedia-sdk.js?version=2260	3600.0 s	4.3 KiB
cdn-p.cityspark.com/cdn/widget/ajax-loader.gif	7200.0 s	4.4 KiB
cdn-p.cityspark.com/cdn/widget/widgetcombined2.min.js?v=11	7200.0 s	3.9 KiB
/portalimages/portalimages/e1C2pAneKUO1GskWY1L0Bg.medium.jpg	172800.0 s	9.4 KiB
cdn-p.cityspark.com/cdn/widget/WidgetTemplate.min.css?v=6	7200.0 s	3.4 KiB
cdn-p.cityspark.com/cdn/widget/fonts/icomoon.woff?-35bf	7200.0 s	2.3 KiB
connext-fd-gnbrate4fjhjb3f7.z01.azurefd.net/index.js	86400.0 s	2.6 KiB
paywall-ad-bucket.s3.amazonaws.com/ad_300_250.jpg	0.0 ms	1.0 KiB
cdn.cityspark.com/wid/get.js?ver=6.9.4	172800.0 s	2.8 KiB
htlbid.com/v3/sandiegouniontribune.com/htlbid.css?ver=6.9.4	600.0 s	574 B
/hadron.js?url=https%3A%2F%2Fwww.sandiegouniontribune.com...	432000.0 s	186 B
/pushly-sdk.min.js?domain_key=5QIpV1GwE7xvFTvUeUuFIfXYXVb...	300.0 s	0 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.

URL	Est Savings
fonts.gstatic.com/s/roboto/v30/KFOmCnqEu92Fr1Mu4mxP.ttf	25 ms
fonts.gstatic.com/s/roboto/v30/KFOlCnqEu92Fr1MmWUlfBBc9.ttf	25 ms
/npm/bootstrap-icons@1.5.0/font/fonts/bootstrap-icons.wof...	5.0 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:21.729 source:map[column:6379 line:11 type:source-location url:https://www.sandiegouniontribune.com/_static/??-eJyVj7EOwjAMRH+I1rA0MCAGFhY+ImpC45LYUe2A6NcTkECwIDHe6Z7uDq656ZnUk4IGn7xAdZIVJnAoCqMAiyXeF1FObUJqR1nAB5ZjGZAEEg1N0PjGqj5oPLKTX1QOrEwnjBEunhxPkLHXMvmH9R8Y7XwTnP1XH1Ifi6u36qLnssB8fiV2absypjNms+zW4x1eiGQL 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:107.609 source:map[type:text value:[unattributed]]] map[reflowTime:21.729 source:map[column:2574 line:10 type:source-location url:https://www.sandiegouniontribune.com/_static/??-eJyVj7EOwjAMRH+I1rA0MCAGFhY+ImpC45LYUe2A6NcTkECwIDHe6Z7uDq656ZnUk4IGn7xAdZIVJnAoCqMAiyXeF1FObUJqR1nAB5ZjGZAEEg1N0PjGqj5oPLKTX1QOrEwnjBEunhxPkLHXMvmH9R8Y7XwTnP1XH1Ifi6u36qLnssB8fiV2absypjNms+zW4x1eiGQL urlProvider:network]] map[reflowTime:0.551 source:map[column:38273 line:1 type:source-location url:https://sdk.mrf.io/statics/marfeel-sdk.js?id=5546 urlProvider:network]] map[reflowTime:0.786 source:map[column:45350 line:7 type:source-location url:https://fp.sandiegouniontribune.com/prod/dfm/fp.min.js?2026321 urlProvider:network]] map[reflowTime:0.503 source:map[column:51393 line:10 type:source-location url:https://cdn.jsdelivr.net/combine/npm/jquery@3.3.1,npm/slick-carousel@1.8.1,npm/angular@1.2.32/angular.min.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.

	URL	Resource Size	Est Savings
Students arriving on campus for the first day of classes for the 2024 Fall term… `figure > div.image-wrapper > a > img.size-article_feature`	/wp-content/uploads/2026/04/SUT-L-CALIF-DEGREES-First-Day...	119.0 KiB	111.7 KiB
San Diego Union-Tribune `div.hidden-logo > h1.logo > a > img`	/wp-content/uploads/2024/06/SDUT_logo_black_horizontal.png	16.2 KiB	15.0 KiB
San Diegans react to Mayor Todd Gloria as he appears at the San Diego City Coun… `figure > a > div.image-wrapper > img.size-hp_small`	/wp-content/uploads/2026/04/sut-l-arts-protest-012.jpg?w=258	13.1 KiB	5.9 KiB
Supervisor Terra Lawson-Remer speaks about her proposed changes to the county c… `figure > a > div.image-wrapper > img.size-hp_small`	/wp-content/uploads/2026/04/SUT-L-Charter-003.jpg?w=258	11.8 KiB	4.6 KiB
Jumble `div.promotion-widget > div.promotion-child > a.promotion-widget-image > img`	/wp-content/uploads/2024/06/Screen-Shot-2023-02-13-at-2.1...	6.6 KiB	4.3 KiB
Sudoku `div.promotion-widget > div.promotion-child > a.promotion-widget-image > img`	/wp-content/uploads/2024/06/Screen-Shot-2023-02-13-at-2.1...	6.2 KiB	4.0 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:1414.9830009765626 label:Time to first byte subpart:timeToFirstByte] map[duration:17.8099990234375 label:Resource load delay subpart:resourceLoadDelay] map[duration:420.417 label:Resource load duration subpart:resourceLoadDuration] map[duration:1309.496 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-IMG

nodeLabel: Students arriving on campus for the first day of classes for the 2024 Fall term…

path: 1,HTML,1,BODY,6,DIV,2,DIV,1,DIV,0,MAIN,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,1,ARTICLE,2,FIGURE,0,DIV,0,A,0,IMG

selector: figure > div.image-wrapper > a > img.size-article_feature

snippet: <img alt="Students arriving on campus for the first day of classes for the 2024 Fall…" src="https://www.sandiegouniontribune.com/wp-content/uploads/2026/04/SUT-L-CALI…" class=" size-article_feature" sizes="(max-width: 40em) 620px,(min-width: 40em) and (max-width: 50em) 780px,(min…" srcset="https://www.sandiegouniontribune.com/wp-content/uploads/2026/04/SUT-L-CALI…" data-mrf-layout-img="">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG

nodeLabel: Students arriving on campus for the first day of classes for the 2024 Fall term…

path: 1,HTML,1,BODY,6,DIV,2,DIV,1,DIV,0,MAIN,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,1,ARTICLE,2,FIGURE,0,DIV,0,A,0,IMG

selector: figure > div.image-wrapper > a > img.size-article_feature

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.

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.

URL	Transfer Size	Duration
htlbid.com/v3/sandiegouniontribune.com/htlbid.css?ver=6.9.4	574 B	1.3 s
accounts.google.com/gsi/client?ver=6.9.4	96.4 KiB	786 ms
ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js?ver=3.5.1	30.9 KiB	499 ms
a352.sandiegouniontribune.com/script.js	45.4 KiB	707 ms
cdn.auth0.com/js/auth0-spa-js/1.13/auth0-spa-js.production.js?ver=6.9.4	38.1 KiB	498 ms
/_static/??-eJylzM0OQDAQBOAXoovEz0VcvUZL06y0S+w2PL46iSunS...	155.3 KiB	281 ms
/css?family=Noto+Sans%3A400%2C700%2C800%7CNoto+Serif%3A40...	2.0 KiB	275 ms
cmp.osano.com/16A1AnRt2Fn8i1unj/588a4c3b-9412-405d-881a-4c100177ffdd/osano.js	96.5 KiB	825 ms
/_static/??-eJyNzEEOAiEMheELCXUm0XFjXHgSBhCKtBBb4vUd3Zm4c...	66.3 KiB	120 ms
/npm/bootstrap-icons@1.5.0/font/bootstrap-icons.min.css?v...	9.1 KiB	243 ms
/wp-content/plugins/loader-wp/static/loader.min.js?ver=1.6.4	10.9 KiB
/wp-content/plugins/mng-digisubs/static/mng-digisubs.arti...	68.1 KiB	120 ms
/_static/??-eJydzD0OwjAMhuELkZpWgrIgLsDKAfJjIleJU8WOWm5PF...	20.3 KiB
/wp-content/themes/assets/static/css/measuredvibrant.css?...	122.1 KiB	842 ms
/wp-content/client-mu-plugins/src/SSO/assets/js/sso-tools...	1.8 KiB
/wp-content/client-mu-plugins/src/Auth0/assets/dist/auth0...	437 B
/_static/??-eJx9zDEKwzAMheELVVW7xGQopUdJHGELbMlEMiW3rykUO...	840 B
/wp-content/plugins/dfm-ad-mods/dist/css/style.min.css?m=...	322 B
/wp-content/mu-plugins/jetpack-15.5/modules/widgets/top-p...	809 B
/wp-content/client-mu-plugins/src/Sitemap/includes/style....	561 B
/wp-content/plugins/mng-digisubs/static/mng-digisubs.styl...	10.1 KiB
/wp-content/plugins/dfm-trust-indicators/dist/css/style.m...	1.2 KiB
/wp-content/themes/wp-mason/dist/css/styleOsanoCustom.min...	299 B

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: 585 ms

URL	Time Spent
sandiegouniontribune.com/	585 ms
www.sandiegouniontribune.com/	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: 921 ms

URL	Time Spent
www.sandiegouniontribune.com/	1.0 s

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: 300 ms 154.1 KiB

URL	Transfer Size	Est Savings
/wp-content/themes/assets/static/css/measuredvibrant.css?...	121.8 KiB	104.2 KiB
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.css?2026321	49.9 KiB	49.9 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: 770 ms 1.5 MiB

URL	Transfer Size	Est Savings
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.js?2026321	291.4 KiB	185.7 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB	140.5 KiB
/_static/??-eJylzM0OQDAQBOAXoovEz0VcvUZL06y0S+w2PL46iSunS...	155.1 KiB	126.0 KiB
cdn.adapex.io/hb/aaw.empowerlocal_c.js	168.5 KiB	103.7 KiB
cds.connatix.com/p/320810193/connatix.player.js	138.5 KiB	94.7 KiB
www.googletagmanager.com/gtag/js?id=G-4GX2KRZNNN&l=MG2DL&cx=c&gtm=4e64h1	145.4 KiB	72.4 KiB
www.googletagmanager.com/gtag/js?id=G-KVX6E4M7J9&l=cswDataLayer&cx=c&gtm=4e64h1	143.5 KiB	71.5 KiB
accounts.google.com/gsi/client?ver=6.9.4	95.6 KiB	71.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-NFD2QGD&l=MG2DL	171.1 KiB	65.7 KiB
www.googletagmanager.com/gtag/js?id=G-JT3B9930DJ&cx=c&gtm=4e64h1	159.2 KiB	61.4 KiB
a352.sandiegouniontribune.com/plugin/library/ddb38d39800daef4603f17f823f4f7d1	93.2 KiB	59.1 KiB
www.googletagmanager.com/gtag/js?id=G-39CWM68PTE&l=cswDataLayer	145.3 KiB	57.8 KiB
/wp-content/plugins/mng-digisubs/static/mng-digisubs.arti...	67.9 KiB	56.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-TLFP4R	212.6 KiB	54.6 KiB
/_static/??-eJyNzEEOAiEMheELCXUm0XFjXHgSBhCKtBBb4vUd3Zm4c...	66.1 KiB	50.8 KiB
/wp-content/plugins/mng-digisubs/static/mng-digisubs.appl...	75.4 KiB	50.6 KiB
/combine/npm/jquery@3.3.1,npm/slick-carousel@1.8.1,npm/an...	80.5 KiB	38.2 KiB
a352.sandiegouniontribune.com/plugin/plugin/373cdd2ca7b7c58f49b038c8a76ae6d5	58.6 KiB	33.5 KiB
sdk.mrf.io/statics/marfeel-sdk.js?id=5546	62.4 KiB	24.9 KiB
sdk.mrf.io/statics/47bd3e88b6bda15c34ce.js	23.9 KiB	22.2 KiB
plugins.blueconic.net/static/scripts/jquery/jquery-3.7.1-BC-v2.min.js	29.7 KiB	22.1 KiB
g2i.sandiegouniontribune.com/prod/dfm/g2i.min.js?2026321	43.7 KiB	21.8 KiB
cmp.osano.com/16A1AnRt2Fn8i1unj/588a4c3b-9412-405d-881a-4c100177ffdd/osano.js	96.0 KiB	20.1 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.

URL	Total CPU Time	Script Evaluation	Script Parse
/_static/??-eJyVj7EOwjAMRH+I1rA0MCAGFhY+ImpC45LYUe2A6NcTk...	2.1 s	2.1 s	1.2 ms
cmp.osano.com/16A1AnRt2Fn8i1unj/588a4c3b-9412-405d-881a-4c100177ffdd/osano.js	565 ms	492 ms	7.9 ms
www.sandiegouniontribune.com/	394 ms	65 ms	3.8 ms
Unattributable	217 ms	28 ms	0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-TLFP4R	151 ms	122 ms	15 ms
connext-fd-gnbrate4fjhjb3f7.z01.azurefd.net/index.js	135 ms	117 ms	0.6 ms
cdn.adapex.io/hb/aaw.empowerlocal_c.js	114 ms	104 ms	9.6 ms
www.googletagmanager.com/gtm.js?id=GTM-NFD2QGD&l=MG2DL	100 ms	84 ms	12 ms
/pushly-sdk.min.js?domain_key=5QIpV1GwE7xvFTvUeUuFIfXYXVb...	96 ms	87 ms	2.6 ms
/_static/??-eJylzM0OQDAQBOAXoovEz0VcvUZL06y0S+w2PL46iSunS...	96 ms	69 ms	25 ms
www.googletagmanager.com/gtag/js?id=G-JT3B9930DJ&cx=c&gtm=4e64h1	80 ms	66 ms	7.9 ms
cdn.sophi.io/assets/demeter/1/stable/1073443563.js?ver=6.9.4	77 ms	71 ms	4.1 ms
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.js?2026321	70 ms	38 ms	30 ms
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	58 ms	40 ms	12 ms
s.cdn.gcprivacy.net/gcid_s.min.js	53 ms	52 ms	0.4 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.

Category	Time Spent
Script Evaluation	3.9 s
Other	314 ms
Style & Layout	312 ms
Script Parsing & Compilation	236 ms
Garbage Collection	71 ms
Rendering	61 ms
Parse HTML & CSS	47 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 reason	Failure type
The page has an unload handler in the main frame.	Actionable

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 10 ms 5.5 KiB

URL	Transfer Size	Est Savings
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.css?2026321	50.4 KiB	5.5 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.

URL	Transfer Size
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.js?2026321	291.9 KiB
/portalimages/portalimages/ndIWDrEnpkaX6ZMYzgyRVQ.medium.png	288.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-TLFP4R	212.9 KiB
/portalimages/portalimages/mcqmnkuvrEKwH6jnv0Bl3Q.medium.png	200.6 KiB
/portalimages/portalimages/GahuOJ27Jkq4NV4ClBAndw.medium.png	198.7 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js	187.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-NFD2QGD&l=MG2DL	171.1 KiB
cdn.adapex.io/hb/aaw.empowerlocal_c.js	169.2 KiB
www.googletagmanager.com/gtag/js?id=G-JT3B9930DJ&cx=c&gtm=4e64h1	159.2 KiB
/portalimages/portalimages/0RB43FpVJUyrpajP22VRhg.medium.png	157.1 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
Games `div.promotion-widget > div.promotion-child > a.promotion-widget-image > img`	/wp-content/uploads/2024/06/Screen-Shot-2023-02-13-at-2.1...
Sudoku `div.promotion-widget > div.promotion-child > a.promotion-widget-image > img`	/wp-content/uploads/2024/06/Screen-Shot-2023-02-13-at-2.1...
Jumble `div.promotion-widget > div.promotion-child > a.promotion-widget-image > img`	/wp-content/uploads/2024/06/Screen-Shot-2023-02-13-at-2.1...
Daily Crossword `div.promotion-widget > div.promotion-child > a.promotion-widget-image > img`	/wp-content/uploads/2024/06/Screen-Shot-2023-02-13-at-2.1...

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

●Layout shift culprits

●Optimize DOM size

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 20 user timings

●Avoid long main-thread tasks 11 long tasks found

●Avoid non-composited animations 1 animated element found

●Network Requests

●Network Round Trip Times 170 ms

●Server Backend Latencies 1,070 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid large layout shifts 3 layout shifts found

○INP breakdown

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
body.home > img#06db9294 `body.home > img#06db9294`

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
69°F `div.accuweather-wrap > div.weather-date > div.dfm_accuweather_current_conditions > a`

○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

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●`button`, `link`, and `menuitem` elements have accessible names

●ARIA attributes are used as specified for the element's role

●`[aria-hidden="true"]` elements do not contain focusable descendents

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<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.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Identical links have the same purpose.

○`[accesskey]` values are unique

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○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.

○`[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.

○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.

Best Practices

Trust and Safety

Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source
/pushly-sdk.min.js?domain_key=5QIpV1GwE7xvFTvUeUuFIfXYXVb...

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Displayed size	Actual size	Expected size
Supervisor Terra Lawson-Remer speaks about her proposed changes to the county c… `figure > a > div.image-wrapper > img.size-hp_small`	/wp-content/uploads/2026/04/SUT-L-Charter-003.jpg?w=258	345 x 229	258 x 171	345 x 229
Workers brew, bottle and pack craft beer at Stone Brewery in Escondido. (AP Pho… `figure > a > div.image-wrapper > img.size-hp_small`	/wp-content/uploads/2026/04/SUT-L-STONE-0421-04.jpg?w=258	345 x 229	258 x 171	345 x 229

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 / Warning	Source
Unload event listeners are deprecated and will be removed.	cmp.osano.com/16A1AnRt2Fn8i1unj/588a4c3b-9412-405d-881a-4c100177ffdd/osano.js line 1, col 172628
Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check https://xhr.spec.whatwg.org/.	engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.js?2026321 line 7, col 472465
SharedStorage	a352.sandiegouniontribune.com/script.js line 66, col 205

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.

Source	Description
accounts.google.com/gsi/client?ver=6.9.4 line 85, col 88	`[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.`
www.sandiegouniontribune.com/	`Access to fetch at 'https://api.rlcdn.com/api/identity/envelope?pid=1323' from origin 'https://www.sandiegouniontribune.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
www.sandiegouniontribune.com/	`Access to fetch at 'https://api.rlcdn.com/api/identity/envelope?pid=1323' from origin 'https://www.sandiegouniontribune.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
www.sandiegouniontribune.com/	`Access to fetch at 'https://api.rlcdn.com/api/identity/envelope?pid=1323' from origin 'https://www.sandiegouniontribune.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.`
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.js?2026321 line 7, col 562075	`DebugPanel: Debug panel is turned off in configuration`
a352.sandiegouniontribune.com/plugin/library/ddb38d39800daef4603f17f823f4f7d1 line 157, col 13285	`Error occurs when executing javascript: Invalid or unexpected token`
api.rlcdn.com/api/identity/envelope?pid=1323	`Failed to load resource: net::ERR_FAILED`
api.rlcdn.com/api/identity/envelope?pid=1323	`Failed to load resource: net::ERR_FAILED`
api.rlcdn.com/api/identity/envelope?pid=1323	`Failed to load resource: net::ERR_FAILED`
www.sandiegouniontribune.com/	`Not signed in with the identity provider.`
/wp-content/plugins/mng-cache-control/Src/assets/dist/mng... line 7, col 39	TypeError: Cannot read properties of null (reading 'querySelector') at initialize (https://www.sandiegouniontribune.com/wp-content/plugins/mng-cache-control/Src/assets/dist/mng-cache-control-adminbar.js?ver=0.2.1:8:40) at MNG_Cache_Control_AdminBar (https://www.sandiegouniontribune.com/wp-content/plugins/mng-cache-control/Src/assets/dist/mng-cache-control-adminbar.js?ver=0.2.1:101:3) at HTMLDocument.<anonymous> (https://www.sandiegouniontribune.com/wp-content/plugins/mng-cache-control/Src/assets/dist/mng-cache-control-adminbar.js?ver=0.2.1:107:7)
/combine/npm/jquery@3.3.1,npm/slick-carousel@1.8.1,npm/an... line 21, col 449	`Uncaught Error: [ng:btstrpd] http://errors.angularjs.org/1.2.32/ng/btstrpd?p0=%26lt%3Bhtml%20ng-app%3D%22widgetApp%22%26gt%3B`

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

●Displays images with correct aspect ratio

●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

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
body.home > img#06db9294 `body.home > img#06db9294`

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`

URL	Map URL
/_static/??-eJylzM0OQDAQBOAXoovEz0VcvUZL06y0S+w2PL46iSunS...	www.sandiegouniontribune.com/_static/mng-digisubs.uiHandler.bundle.js.map;
engage.sandiegouniontribune.com/prod/dfm/t8y9347t.min.js?2026321
/_static/??-eJyVzk0KwkAMQOEL2cYWtG5EuvQYY5OOKZNMadKKt/cHF...	www.sandiegouniontribune.com/_static/measuredvibrant.min.js.map;
/_static/??-eJyNzEEOAiEMheELCXUm0XFjXHgSBhCKtBBb4vUd3Zm4c...	www.sandiegouniontribune.com/_static/mng-digisubs.sophi.bundle.js.map;
/_static/??-eJydzD0OwjAMhuELkZpWgrIgLsDKAfJjIleJU8WOWm5PF...	www.sandiegouniontribune.com/_static/mng-digisubs.connextUtils.bundle.js.map;
cmp.osano.com/16A1AnRt2Fn8i1unj/588a4c3b-9412-405d-881a-4c100177ffdd/osano.js	/16A1AnRt2Fn8i1unj/588a4c3b-9412-405d-881a-4c100177ffdd/o...
az416426.vo.msecnd.net/scripts/a/ai.0.js	az416426.vo.msecnd.net/scripts/a/ai.0.js.map
az416426.vo.msecnd.net/scripts/a/ai.0.js	az416426.vo.msecnd.net/scripts/a/ai.0.js.map
a352.sandiegouniontribune.com/plugin/library/ddb38d39800daef4603f17f823f4f7d1	a352.sandiegouniontribune.com/plugin/library/jwt-decode.js.map
/wp-content/themes/assets/static/js/measuredvibrant-async...	/wp-content/themes/assets/static/js/measuredvibrant-async...
/wp-content/themes/assets/static/js/common-async.chunk.mi...	/wp-content/themes/assets/static/js/common-async.chunk.mi...
/wp-content/plugins/mng-digisubs/static/mng-digisubs.arti...	/wp-content/plugins/mng-digisubs/static/mng-digisubs.arti...
/wp-content/plugins/mng-digisubs/static/mng-digisubs.appl...	/wp-content/plugins/mng-digisubs/static/mng-digisubs.appl...
/combine/npm/jquery@3.3.1,npm/slick-carousel@1.8.1,npm/an...	/sm/34e4b252638e21ec6ffe8311ebb5588bbd2ab43bad6891e01f91a...
cdn.auth0.com/js/auth0-spa-js/1.13/auth0-spa-js.production.js?ver=6.9.4	cdn.auth0.com/js/auth0-spa-js/1.13/auth0-spa-js.production.js.map