Lighthouse Mobile

· 0 checks — Mobile 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
contentinfo.discover.com/cdn/ca/jquery-3.6.1.min.js?	0.0 ms	635.3 KiB
cdnssl.clicktale.net/www15/ptc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js	900.0 s	145.2 KiB
www.discover.com/s6YAhsHw9/lG/-KY1u8g/V9uaQXY39fzYJmiX9S/dj0xMno/GnF/9EF5LIFcB	21600.0 s	179.0 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
assets.adobedtm.com/1e5ef0994701/d37390dc6a0a/launch-c54b9d72c46c.min.js	3600.0 s	78.1 KiB
www.datadoghq-browser-agent.com/us1/v5/datadog-rum.js	14400.0 s	52.0 KiB
/signals/config/1206772346807435?v=2.9.303&r=stable&domai...	1200.0 s	39.4 KiB
/etc.clientlibs/dfs-core/clientlibs/clientlib-core/resour...	86400.0 s	85.0 KiB
/js/current/dpm_pixel_min.js?aid=discover-dc1bf83e-5f06-4...	0.0 ms	31.6 KiB
cdn.branch.io/branch-latest.min.js	300.0 s	23.5 KiB
portal.discover.com/web/enterprise/login/index-EXzV9Qvm.js	1296000.0 s	191.8 KiB
/etc.clientlibs/dfs-core/clientlibs/clientlib-core/resour...	86400.0 s	42.6 KiB
/etc.clientlibs/dfs-core/clientlibs/clientlib-core/resour...	86400.0 s	42.0 KiB
/etc.clientlibs/dfs-core/clientlibs/clientlib-core/resour...	86400.0 s	41.3 KiB
/pcc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js?DeploymentCo...	900.0 s	18.4 KiB
/etc.clientlibs/dfs-core/clientlibs/clientlib-core/resour...	86400.0 s	30.3 KiB
cdnssl.clicktale.net/ptc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js	900.0 s	8.1 KiB
s.go-mpulse.net/boomerang/RL6FP-7VUY8-NDC3K-X55B8-GT8C6	604800.0 s	56.6 KiB
/cdn/ca/1.7.2/mutha-discover-wrapper.js?a=9f89c84a559f573...	0.0 ms	1.8 KiB
/1e5ef0994701/d37390dc6a0a/304a5647508f/RCa7ff936fdac846f...	3600.0 s	1.3 KiB
cdnssl.clicktale.net/www/bridge-WR110.js	86400.0 s	2.6 KiB
/_r?sdk=web2.87.1&branch_key=key_live_gevPwVGxd97F95YmLl3...	0.0 ms	669 B
cdnssl.clicktale.net/www15/ptc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js	900.0 s	443 B
/tr/?id=1206772346807435&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	16 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:0.121507] map[node:map[boundingRect:map[bottom:6257 height:6082 left:0 right:412 top:175 width:412] lhId:page-1-DIV nodeLabel:Skip to main content FDIC-Insured - Backed by the full faith and credit of the… path:1,HTML,1,BODY,37,DIV,0,DIV selector:body#basepage-159a114a2f > div.main-container > div.homepage-content snippet:<div class="homepage-content"> type:node] score:0.121507]]

items: [map[node:map[type:text value:Total] score:0.292931] map[node:map[boundingRect:map[bottom:947 height:253 left:0 right:412 top:694 width:412] lhId:page-4-DIV nodeLabel:How can we help? Credit Card Online Banking Personal Loans path:1,HTML,1,BODY,37,DIV,0,DIV,0,DIV,0,DIV,1,MAIN,0,DIV,0,DIV,2,DIV selector:main#main-content-rwd > div.responsivegrid > div.aem-Grid > div.cardsportfolioexperiencefragment snippet:<div class="cardsportfolioexperiencefragment experiencefragment aem-GridColumn aem-Gri…"> type:node] score:0.201801] map[node:map[boundingRect:map[bottom:6257 height:6182 left:0 right:412 top:75 width:412] lhId:page-2-DIV nodeLabel:Skip to main content FDIC-Insured - Backed by the full faith and credit of the… path:1,HTML,1,BODY,37,DIV selector:body#basepage-159a114a2f > div.main-container snippet:<div class="main-container mobile-responsive " style="padding-top: 100px;"> type:node] score:0.09113]]

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.

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:240.86 label:Time to first byte subpart:timeToFirstByte] map[duration:2322.506 label:Resource load delay subpart:resourceLoadDelay] map[duration:37.449 label:Resource load duration subpart:resourceLoadDuration] map[duration:34.661 label:Element render delay subpart:elementRenderDelay]]

lhId: page-0-DIV

nodeLabel: div.dynamic-banner > div.dmp-area > section.banner > div#item-size1

path: 1,HTML,1,BODY,37,DIV,0,DIV,0,DIV,0,DIV,1,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,SECTION,0,DIV

selector: div.dynamic-banner > div.dmp-area > section.banner > div#item-size1

snippet: <div class="item-image default-content background-image--variation" id="item-size1" style="background-image: url("/content/dam/discover/en_us/gateway/tiles/JC_Image_…");">

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-DIV

nodeLabel: div.dynamic-banner > div.dmp-area > section.banner > div#item-size1

path: 1,HTML,1,BODY,37,DIV,0,DIV,0,DIV,0,DIV,1,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,SECTION,0,DIV

selector: div.dynamic-banner > div.dmp-area > section.banner > div#item-size1

snippet: <div class="item-image default-content background-image--variation" id="item-size1" style="background-image: url("/content/dam/discover/en_us/gateway/tiles/JC_Image_…");">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
/fp//kjh1fhpzp4b26fvs.js?1eyfp9vs32ieji0e=o7f2hmf6&xl1ic9...	http/1.1
/sk-3pBru6yhiENL8?b96689928ca679c7=XjS1TL1S5lR1wpxHUly2NL...	http/1.1
/zsm25tkMuAD45iGU?4ab7181fd46e836e=aZwcoFumNKbjOsAEe9vpru...	http/1.1
/Y8n8Dgb941D_OSxl?0a92724257df3460=-7lvlUBmV8vRg16K4HodKC...	http/1.1
content.discover.com/fp/clear.png	http/1.1
/k0FaQ1d8rxe8mZpG?e37b1443fc0e5d98=x8wtFlhLFqsC51PZT0fXJK...	http/1.1
/oJtRAoXq29Urrb8-?cdedfb3c83fe8987=lht0GRfmBuDIGzFqzyaMiH...	http/1.1
/MVdkXP_1nrLdW0db?9b0471b45c1e1327=4XtLvmTV0Dt8WTEdystgm9...	http/1.1
/k0FaQ1d8rxe8mZpG?e37b1443fc0e5d98=x8wtFlhLFqsC51PZT0fXJK...	http/1.1
/44Jn5c4LlgZk3UEG?ce03fac1bd406129=-9tLe6pA8zBvua7L47DFKO...	http/1.1
/fjFxxTU0fypmom8C?ee0ae6bd36ea920b=nSWoCruLxoKA4Wb7s-Mz5p...	http/1.1
/Sgnk-f1HdD70wu4A?98bb2f9d74e390f3=Pn5c__iwpNA6rdOXAsCbyY...	http/1.1
/Mm2z8cnLDGMje7Rx?22f8a2f3e4b459ba=fWOMoNUDPZo-NME9tvLE7o...	http/1.1
/Mm2z8cnLDGMje7Rx?22f8a2f3e4b459ba=fWOMoNUDPZo-NME9tvLE7o...	http/1.1
/mWdB97_mJ8DdYEU3?a4b2fd1f94588b45=Q0AnCCSp3Sq-nolFtbSbnu...	http/1.1
/k0FaQ1d8rxe8mZpG?e37b1443fc0e5d98=x8wtFlhLFqsC51PZT0fXJK...	http/1.1
/Mm2z8cnLDGMje7Rx?22f8a2f3e4b459ba=fWOMoNUDPZo-NME9tvLE7o...	http/1.1
/k0FaQ1d8rxe8mZpG?e37b1443fc0e5d98=x8wtFlhLFqsC51PZT0fXJK...	http/1.1
/k0FaQ1d8rxe8mZpG?e37b1443fc0e5d98=x8wtFlhLFqsC51PZT0fXJK...	http/1.1
/Mm2z8cnLDGMje7Rx?22f8a2f3e4b459ba=fWOMoNUDPZo-NME9tvLE7o...	http/1.1
/Mm2z8cnLDGMje7Rx?22f8a2f3e4b459ba=fWOMoNUDPZo-NME9tvLE7o...	http/1.1

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
/etc.clientlibs/dfs-cards-portfolio/clientlibs/clientlib-...	116.2 KiB	452 ms

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
div.branch-banner-content > div.branch-banner-left > div.branch-banner-icon > img `div.branch-banner-content > div.branch-banner-left > div.branch-banner-icon > img`	cdn.branch.io/branch-assets/1624641507927-undefined.jpeg	33.7 KiB	32.2 KiB
	/content/dam/discover/en_us/gateway/tiles/Q2_2026_BoxC_Kn...	24.4 KiB	9.8 KiB
div.aem-Grid > div.dmptilesfragment > div.dmp-tile-container > div.dmp-tile-wrapper `div.aem-Grid > div.dmptilesfragment > div.dmp-tile-container > div.dmp-tile-wrapper`	/content/dam/discover/en_us/gateway/tiles/D.com_Placement...	14.3 KiB	5.7 KiB
	/content/dam/discover/en_us/gateway/tiles/B C (460x196)_P...	18.8 KiB	4.2 KiB
div.dmptilesfragment > div.dmp-tile-container > div.right-top-yellow-curve > div.dmp-tile-wrapper `div.dmptilesfragment > div.dmp-tile-container > div.right-top-yellow-curve > div.dmp-tile-wrapper`	/content/dam/discover/en_us/gateway/tiles/danceB_C_460x19...	18.8 KiB	4.1 KiB

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

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 868 ms

URL	Time Spent
discover.com/	868 ms
www.discover.com/	0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
How can we help? Credit Card Online Banking Personal Loans `main#main-content-rwd > div.responsivegrid > div.aem-Grid > div.cardsportfolioexperiencefragment`	0.202
Skip to main content FDIC-Insured - Backed by the full faith and credit of the… `body#basepage-159a114a2f > div.main-container > div.homepage-content`	0.122
Skip to main content FDIC-Insured - Backed by the full faith and credit of the… `body#basepage-159a114a2f > div.main-container`	0.091

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.2 s 138.5 KiB

URL	Transfer Size	Est Savings
/etc.clientlibs/dfs-cards-portfolio/clientlibs/clientlib-...	145.3 KiB	138.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 6.7 s 1.2 MiB

URL	Transfer Size	Est Savings
contentinfo.discover.com/cdn/ca/jquery-3.6.1.min.js?	634.9 KiB	397.4 KiB
portal.discover.com/web/enterprise/login/index-EXzV9Qvm.js	191.1 KiB	142.8 KiB
cdnssl.clicktale.net/www15/ptc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js	144.7 KiB	112.9 KiB
/etc.clientlibs/dfs-cards-portfolio/clientlibs/clientlib-...	115.6 KiB	81.7 KiB
cdnssl.clicktale.net/www15/ptc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js	144.7 KiB	71.8 KiB
www.googletagmanager.com/gtag/js?id=G-3MJNPV4VSE&cx=c&gtm=4e64k0	171.7 KiB	66.9 KiB
www.googletagmanager.com/gtag/js?id=AW-1070332633&cx=c&gtm=4e64k0	137.4 KiB	61.6 KiB
www.googletagmanager.com/gtag/js?id=AW-1055491036&cx=c&gtm=4e64k0	139.8 KiB	61.3 KiB
www.googletagmanager.com/gtag/js?id=DC-3470633	129.2 KiB	54.1 KiB
/etc.clientlibs/dfs-cards-portfolio/clientlibs/clientlib-...	52.6 KiB	41.5 KiB
www.discover.com/s6YAhsHw9/lG/-KY1u8g/V9uaQXY39fzYJmiX9S/dj0xMno/GnF/9EF5LIFcB	177.9 KiB	37.7 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	36.7 KiB
/sk-3pBru6yhiENL8?b96689928ca679c7=XjS1TL1S5lR1wpxHUly2NL...	117.7 KiB	35.2 KiB
www.datadoghq-browser-agent.com/us1/v5/datadog-rum.js	51.6 KiB	27.7 KiB
s.go-mpulse.net/boomerang/RL6FP-7VUY8-NDC3K-X55B8-GT8C6	56.4 KiB	25.2 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
/sk-3pBru6yhiENL8?b96689928ca679c7=XjS1TL1S5lR1wpxHUly2NL...	5.4 s	4.3 s	59 ms
Unattributable	1.5 s	91 ms	0.0 ms
cdnssl.clicktale.net/www15/ptc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js	884 ms	696 ms	91 ms
www.discover.com/s6YAhsHw9/lG/-KY1u8g/V9uaQXY39fzYJmiX9S/dj0xMno/GnF/9EF5LIFcB	713 ms	656 ms	43 ms
contentinfo.discover.com/cdn/ca/jquery-3.6.1.min.js?	515 ms	220 ms	275 ms
assets.adobedtm.com/1e5ef0994701/d37390dc6a0a/launch-c54b9d72c46c.min.js	515 ms	434 ms	30 ms
www.discover.com/	478 ms	41 ms	5.4 ms
/etc.clientlibs/dfs-cards-portfolio/clientlibs/clientlib-...	355 ms	246 ms	41 ms
www.googletagmanager.com/gtag/js?id=G-3MJNPV4VSE&cx=c&gtm=4e64k0	319 ms	270 ms	46 ms
/pcc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js?DeploymentCo...	294 ms	262 ms	5.9 ms
www.datadoghq-browser-agent.com/us1/v5/datadog-rum.js	282 ms	218 ms	12 ms
portal.discover.com/web/enterprise/login/index-EXzV9Qvm.js	264 ms	193 ms	55 ms
www.googletagmanager.com/gtag/js?id=AW-1055491036&cx=c&gtm=4e64k0	234 ms	194 ms	38 ms
s.go-mpulse.net/boomerang/RL6FP-7VUY8-NDC3K-X55B8-GT8C6	226 ms	183 ms	15 ms
www.googletagmanager.com/gtag/js?id=AW-1070332633&cx=c&gtm=4e64k0	190 ms	156 ms	33 ms
/etc.clientlibs/dfs-cards-portfolio/clientlibs/clientlib-...	164 ms	61 ms	22 ms
/js/current/dpm_pixel_min.js?aid=discover-dc1bf83e-5f06-4...	157 ms	144 ms	10.0 ms
www.googletagmanager.com/gtag/js?id=DC-3470633	135 ms	99 ms	34 ms
connect.facebook.net/en_US/fbevents.js	118 ms	91 ms	26 ms
cdnssl.clicktale.net/www/bridge-WR110.js	108 ms	105 ms	0.7 ms
/_r?sdk=web2.87.1&branch_key=key_live_gevPwVGxd97F95YmLl3...	99 ms	86 ms	1.0 ms
/signals/config/1206772346807435?v=2.9.303&r=stable&domai...	99 ms	83 ms	16 ms
/fp//kjh1fhpzp4b26fvs.js?1eyfp9vs32ieji0e=o7f2hmf6&xl1ic9...	94 ms	83 ms	8.7 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	9.1 s
Other	2.4 s
Script Parsing & Compilation	919 ms
Style & Layout	422 ms
Garbage Collection	347 ms
Rendering	190 ms
Parse HTML & CSS	157 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 a sub frame.	Actionable

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
contentinfo.discover.com/cdn/ca/jquery-3.6.1.min.js?	635.3 KiB
portal.discover.com/web/enterprise/login/index-EXzV9Qvm.js	191.8 KiB
www.discover.com/s6YAhsHw9/lG/-KY1u8g/V9uaQXY39fzYJmiX9S/dj0xMno/GnF/9EF5LIFcB	179.0 KiB
www.googletagmanager.com/gtag/js?id=G-3MJNPV4VSE&cx=c&gtm=4e64k0	171.7 KiB
/etc.clientlibs/dfs-cards-portfolio/clientlibs/clientlib-...	145.8 KiB
cdnssl.clicktale.net/www15/ptc/fd145cf2-4109-439c-97f8-e0bc3c3e290d.js	145.2 KiB
www.googletagmanager.com/gtag/js?id=AW-1055491036&cx=c&gtm=4e64k0	139.9 KiB
www.googletagmanager.com/gtag/js?id=AW-1070332633&cx=c&gtm=4e64k0	137.5 KiB
www.googletagmanager.com/gtag/js?id=DC-3470633	129.6 KiB
/sk-3pBru6yhiENL8?b96689928ca679c7=XjS1TL1S5lR1wpxHUly2NL...	118.3 KiB

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

●Optimize DOM size

●Font display

●Forced reflow

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●User Timing marks and measures 5 user timings

●Avoid long main-thread tasks 20 long tasks found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 310 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 20 ms

○INP breakdown

○Avoid non-composited animations

100

Accessibility

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

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●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

●`[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

●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 have a discernible name

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

●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

○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 the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○No form fields have multiple labels

○`<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

○Links are distinguishable without relying on color.

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○No element has a `[tabindex]` value greater than 0

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○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

User Experience

Preventing input pasting is a bad practice for the UX, and weakens security by blocking password managers.Learn more about user-friendly input fields.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#search_overlay > div.search-container > form#suggestion_form > input#predict-input `div#search_overlay > div.search-container > form#suggestion_form > input#predict-input`

Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Aspect Ratio (Displayed)	Aspect Ratio (Actual)
Discover it Card images `div.col-md-6 > div.image > div#it-images > img.cmp-image__image`	/content/discover/en/_jcr_content/root/responsivegrid/col...	352 x 292 (1.21)	424 x 394 (1.08)

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.	/sk-3pBru6yhiENL8?b96689928ca679c7=XjS1TL1S5lR1wpxHUly2NL... line 1352, col 191
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 279, col 769

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
di.rlcdn.com/710770.gif?pdata=smid%3D24821435972977487402137044427108450729	`Failed to load resource: the server responded with a status of 451 ()`

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.

URL	Map URL
www.discover.com/s6YAhsHw9/lG/-KY1u8g/V9uaQXY39fzYJmiX9S/dj0xMno/GnF/9EF5LIFcB
portal.discover.com/web/enterprise/login/index-EXzV9Qvm.js
contentinfo.discover.com/cdn/ca/jquery-3.6.1.min.js?
/sk-3pBru6yhiENL8?b96689928ca679c7=XjS1TL1S5lR1wpxHUly2NL...
/fp//kjh1fhpzp4b26fvs.js?1eyfp9vs32ieji0e=o7f2hmf6&xl1ic9...	/fp/sym.map?module=o7f2hmf6&version=7f54497d-82cf-4216-93...

●Uses HTTPS

●Avoids third-party cookies

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destination	Link Text
/credit-cards/brnd.html?cmpgnid=dp-dbr-inet-lcs-site-UNK-...	Learn More
/credit-cards/cashback-bonus/cashback-calendar.html?vcmpg...	Learn More
www.discover.com/credit-cards/credit-card-calculator/	Learn More
www.discover.com/online-banking/	Learn more

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

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
ContinueLeave pulsenetwork.com and continue to external website `div.modal-dialog > div.modal-content > div.modal-footer > a.btn-continue`

To appear in search results, crawlers need access to your app.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`