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
/HYx10rg3/captcha/captcha.js?a=c&u=2aa68950-39bf-11f1-8f7...	600.0 s	264.0 KiB
crcldu.com/bd/auditor.js?v=1776362760000	120.0 s	117.8 KiB
www.zillow.com/HYx10rg3/init.js	600.0 s	99.1 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.4 KiB
www.zillowstatic.com/s3/pfs/vendors~productnavApp-f5e5d55e814da72b2063.js	86400.0 s	212.3 KiB
client.px-cloud.net/PXHYx10rg3/main.min.js	600.0 s	89.7 KiB
www.zillowstatic.com/s3/pfs/vendors~regApp-f54cf63c9480f03326e9.js	86400.0 s	174.0 KiB
cdn.pubnub.com/sdk/javascript/pubnub.7.5.0.min.js	0.0 ms	57.5 KiB
/s3/pfs/vendors~productnavApp~regApp~topnavApp-ddac4c5c25...	86400.0 s	101.8 KiB
/signals/config/547145892064117?v=2.9.298&r=stable&domain...	1200.0 s	44.7 KiB
www.datadoghq-browser-agent.com/us1/v5/datadog-rum.js	14400.0 s	52.0 KiB
/consent/7e84c9ce-057e-4c91-87ef-56e6d4914637/a84e7f07-b7...	0.0 ms	33.7 KiB
www.zillowstatic.com/s3/pfs/vendors~topnavApp-0b53e4771e62e3a6d606.js	86400.0 s	73.3 KiB
scripts.clarity.ms/0.8.59/clarity.js	0.0 ms	26.1 KiB
cdn.zg-api.com/a/z/js/v1/analytics.js?v=bcf290c	86400.0 s	58.6 KiB
www.redditstatic.com/ads/pixel.js	60.0 s	19.0 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
p.teads.tv/teads-fellow.js	475.0 s	14.8 KiB
js.adsrvr.org/up_loader.1.1.0.js	0.0 ms	12.2 KiB
www.zillowstatic.com/s3/pfs/vendors~regApp~topnavApp-134d2a08962787337c83.js	86400.0 s	19.0 KiB
/s3/pfs/vendors~productnavApp~topnavApp-a10deedb823253ffc...	86400.0 s	15.4 KiB
www.zillowstatic.com/s3/pfs/vendors~productnavApp~regApp-6314e4dcb9ad34c96938.js	86400.0 s	13.7 KiB
www.zillowstatic.com/s3/pfs/core-df6712a376e88526fe76.js	86400.0 s	13.0 KiB
ct.pinterest.com/static/ct/token_create.js	7200.0 s	3.9 KiB
s.pinimg.com/ct/lib/main.10d2511a.js	1209600.0 s	27.6 KiB
sb.scorecardresearch.com/internal-cs/default/beacon.js	86400.0 s	6.7 KiB
s.pinimg.com/ct/core.js	7200.0 s	2.1 KiB
www.zillowstatic.com/s3/pfs/topnavApp-24bd8926397103d1885e.js	86400.0 s	4.0 KiB
www.zillowstatic.com/s3/pfs/static/app-store-badge.svg	86400.0 s	3.0 KiB
js.adsrvr.org/universal_pixel.js	0.0 ms	959 B
www.zillowstatic.com/s3/pfs/static/google-play-badge.svg	86400.0 s	2.1 KiB
www.zillowstatic.com/s3/pfs/static/z-logo-default-visual-refresh.svg	86400.0 s	1.7 KiB
www.zillowstatic.com/s3/pfs/static/z-logo-white-visual-refresh.svg	86400.0 s	1.7 KiB
/rp.gif?ts=1776362866364&id=a2_eb6hulyj70r7&event=PageVis...	0.0 ms	666 B
/config/com/efd79a2e-954c-4330-a6c2-56493f31ff29.js?v=3.5...	0.0 ms	472 B
www.zillowstatic.com/s3/pfs/productnavApp-b07ebee2d7cadc4614c7.js	86400.0 s	872 B
www.zillowstatic.com/s3/pfs/datagrailBannerApp-cd67de4e65d9398df32d.js	86400.0 s	798 B
www.zillowstatic.com/s3/pfs/regApp-36b5af0199595a45a339.js	86400.0 s	750 B
/pixel/?ad_log=referer&action=content&pixid=0f389214-0569...	0.0 ms	131 B
/tr/?id=547145892064117&ev=PageView&zscript=1&dl=https://...	0.0 ms	19 B
/tr/?id=547145892064117&ev=AddPaymentInfo&dl=https%3A%2F%...	0.0 ms	16 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.

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:45.902 source:map[column:137982 line:1 type:source-location url:https://www.zillowstatic.com/s3/shopper-platform/_next/static/chunks/framework-dc1d49c026dc2558.js urlProvider:network]]]

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:86.597 source:map[type:text value:[unattributed]]] map[reflowTime:83.769 source:map[column:5167 line:0 type:source-location url:https://www.zillowstatic.com/s3/web-platform/sub-apps/hops-homepage/hops-homepage.prod.master.13939300.467acb3c/web/444.5a6838f7.bundle.js urlProvider:network]] map[reflowTime:0.609 source:map[column:80881 line:0 type:source-location url:https://cdn.zg-api.com/a/z/js/v1/analytics.js?v=bcf290c urlProvider:network]] map[reflowTime:0.175 source:map[column:162690 line:1 type:source-location url:https://client.px-cloud.net/PXHYx10rg3/main.min.js urlProvider:network]] map[reflowTime:0.206 source:map[column:289531 line:0 type:source-location url:https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js urlProvider:network]] map[reflowTime:1.129 source:map[column:193632 line:1 type:source-location url:https://client.px-cloud.net/PXHYx10rg3/main.min.js urlProvider:network]] map[reflowTime:0.073 source:map[column:45604 line:1 type:source-location url:https://sc-static.net/scevent.min.js urlProvider:network]] map[reflowTime:1.02 source:map[column:31518 line:1 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js urlProvider:network]] map[reflowTime:21.288 source:map[column:172575 line:1 type:source-location url:https://client.px-cloud.net/PXHYx10rg3/main.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
div > div > picture > img.StyledBox-c11n-8-111-2__sc-ocjv7k-0 `div > div > picture > img.StyledBox-c11n-8-111-2__sc-ocjv7k-0`	www.zillowstatic.com/bedrock/app/uploads/sites/5/2024/07/image2-xl%401x.jpg	186.6 KiB	80.0 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-0-IMG

nodeLabel: div > div > picture > img.StyledBox-c11n-8-111-2__sc-ocjv7k-0

path: 1,HTML,1,BODY,0,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,PICTURE,8,IMG

selector: div > div > picture > img.StyledBox-c11n-8-111-2__sc-ocjv7k-0

snippet: <img alt="" role="presentation" src="https://www.zillowstatic.com/bedrock/app/uploads/sites/5/2024/07/image2-xl…" class="StyledBox-c11n-8-111-2__sc-ocjv7k-0 dvqAWH">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
fonts.googleapis.com/css?family=Open+Sans:400,600,700&display=swap	2.2 KiB	230 ms

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

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: 216 ms

URL	Time Spent
zillow.com/	216 ms
www.zillow.com/	0.0 ms

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

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 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: 90 ms 1.7 MiB

URL	Transfer Size	Est Savings
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	199.4 KiB	156.6 KiB
www.zillowstatic.com/s3/pfs/vendors~productnavApp-f5e5d55e814da72b2063.js	211.8 KiB	153.8 KiB
/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	226.0 KiB	141.8 KiB
www.zillowstatic.com/s3/pfs/vendors~regApp-f54cf63c9480f03326e9.js	173.5 KiB	105.1 KiB
accounts.google.com/gsi/client	95.3 KiB	67.9 KiB
/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	139.4 KiB	58.6 KiB
www.googletagmanager.com/gtag/js?id=DC-4704202&cx=c&gtm=4e64f1h2	129.2 KiB	57.1 KiB
www.googletagmanager.com/gtag/js?id=AW-1000940809&cx=c&gtm=4e64f1h2	145.4 KiB	56.7 KiB
/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	107.9 KiB	55.7 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js	109.1 KiB	55.7 KiB
www.googletagmanager.com/gtag/js?id=AW-945306123&cx=c&gtm=4e64f1h2	146.3 KiB	54.8 KiB
www.googletagmanager.com/gtag/js?id=AW-967411044&cx=c&gtm=4e64f1h2	137.6 KiB	54.6 KiB
www.googletagmanager.com/gtag/js?id=AW-940416625&cx=c&gtm=4e64f1h2	137.3 KiB	54.5 KiB
www.googletagmanager.com/gtag/js?id=AW-946526103&cx=c&gtm=4e64f1h2	144.7 KiB	53.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-P6HT97	214.1 KiB	50.4 KiB
/HYx10rg3/captcha/captcha.js?a=c&u=2aa68950-39bf-11f1-8f7...	260.8 KiB	45.9 KiB
cdn.pubnub.com/sdk/javascript/pubnub.7.5.0.min.js	56.7 KiB	45.8 KiB
/s3/shopper-platform/_next/static/chunks/main-537631fad5e...	96.0 KiB	45.4 KiB
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	85.5 KiB	42.6 KiB
www.zillowstatic.com/s3/pfs/vendors~topnavApp-0b53e4771e62e3a6d606.js	72.8 KiB	42.5 KiB
/s3/pfs/vendors~productnavApp~regApp~topnavApp-ddac4c5c25...	101.3 KiB	40.4 KiB
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	47.8 KiB	38.4 KiB
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	38.3 KiB	38.0 KiB
connect.facebook.net/en_US/fbevents.js	96.3 KiB	36.8 KiB
/s3/web-platform/sub-apps/search-box-sub-app/search-box-s...	57.7 KiB	35.9 KiB
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	165.2 KiB	34.5 KiB
/s3/shopper-platform/_next/static/chunks/pages/_app-74514...	55.4 KiB	33.0 KiB
www.zillow.com/HYx10rg3/init.js	98.5 KiB	28.7 KiB
client.px-cloud.net/PXHYx10rg3/main.min.js	89.3 KiB	27.2 KiB
/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	37.8 KiB	26.0 KiB
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	32.1 KiB	24.1 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
client.px-cloud.net/PXHYx10rg3/main.min.js	1.8 s	1.3 s	9.0 ms
Unattributable	861 ms	102 ms	0.0 ms
/s3/shopper-platform/_next/static/chunks/pages/_app-74514...	843 ms	530 ms	8.1 ms
/s3/shopper-platform/_next/static/chunks/framework-dc1d49...	544 ms	417 ms	3.8 ms
/HYx10rg3/captcha/captcha.js?a=c&u=2aa68950-39bf-11f1-8f7...	380 ms	333 ms	19 ms
www.zillow.com/	349 ms	15 ms	4.1 ms
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	224 ms	196 ms	28 ms
/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	178 ms	116 ms	62 ms
www.datadoghq-browser-agent.com/us1/v5/datadog-rum.js	136 ms	83 ms	6.3 ms
/s3/pfs/vendors~productnavApp~regApp~topnavApp-ddac4c5c25...	125 ms	106 ms	18 ms
/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	123 ms	105 ms	18 ms
www.zillowstatic.com/s3/pfs/vendors~productnavApp-f5e5d55e814da72b2063.js	118 ms	76 ms	37 ms
www.googletagmanager.com/gtag/js?id=AW-945306123&cx=c&gtm=4e64f1h2	113 ms	99 ms	13 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js	105 ms	77 ms	20 ms
www.googletagmanager.com/gtag/js?id=AW-946526103&cx=c&gtm=4e64f1h2	101 ms	81 ms	12 ms
www.zillowstatic.com/s3/pfs/vendors~regApp-f54cf63c9480f03326e9.js	100 ms	73 ms	27 ms
www.googletagmanager.com/gtag/js?id=DC-4704202&cx=c&gtm=4e64f1h2	92 ms	79 ms	11 ms
www.googletagmanager.com/gtag/js?id=AW-1000940809&cx=c&gtm=4e64f1h2	83 ms	70 ms	13 ms
www.googletagmanager.com/gtag/js?id=AW-967411044&cx=c&gtm=4e64f1h2	78 ms	66 ms	12 ms
www.googletagmanager.com/gtm.js?id=GTM-P6HT97	77 ms	48 ms	27 ms
www.googletagmanager.com/gtag/js?id=AW-940416625&cx=c&gtm=4e64f1h2	76 ms	64 ms	12 ms
scripts.clarity.ms/0.8.59/clarity.js	68 ms	64 ms	3.0 ms
sc-static.net/scevent.min.js	55 ms	45 ms	1.9 ms
www.zillow.com/HYx10rg3/init.js	52 ms	43 ms	7.7 ms
/signals/config/547145892064117?v=2.9.298&r=stable&domain...	51 ms	38 ms	12 ms
cdn.zg-api.com/a/z/js/v1/analytics.js?v=bcf290c	51 ms	43 ms	6.3 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	4.7 s
Style & Layout	990 ms
Other	933 ms
Script Parsing & Compilation	577 ms
Garbage Collection	196 ms
Rendering	62 ms
Parse HTML & CSS	36 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
/s3/constellation-website/public/shared/fonts/inter/LATES...	342.3 KiB
sdk.split.io/api/splitChanges?s=1.3&since=-1&rbSince=-1	304.9 KiB
/s3/constellation-website/public/shared/fonts/open-sans/L...	273.5 KiB
/HYx10rg3/captcha/captcha.js?a=c&u=2aa68950-39bf-11f1-8f7...	264.0 KiB
/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	226.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-P6HT97	214.4 KiB
www.zillowstatic.com/s3/pfs/vendors~productnavApp-f5e5d55e814da72b2063.js	212.3 KiB
/s3/web-platform/sub-apps/buyability-sub-app/buyability-s...	200.0 KiB
www.zillowstatic.com/bedrock/app/uploads/sites/5/2024/07/image2-xl%401x.jpg	187.3 KiB
www.zillowstatic.com/s3/pfs/vendors~regApp-f54cf63c9480f03326e9.js	174.0 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
Zillow Home Loans, LLC `div.StyledBox-c11n-8-109-3__sc-ocjv7k-0 > div.StyledBox-c11n-8-109-3__sc-ocjv7k-0 > div.StyledBox-c11n-8-109-3__sc-ocjv7k-0 > img`

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

●Layout shift culprits

●Optimize DOM size

●Font display

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●Reduce unused CSS

●User Timing marks and measures 45 user timings

●Avoid long main-thread tasks 20 long tasks found

●Network Requests

●Network Round Trip Times 60 ms

●Server Backend Latencies 120 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 210 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○Avoid non-composited animations

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
div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0 `div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0`
div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0 `div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0`
div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0 `div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0`

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body.exclude-from-algorithmic-darkening, > iframe#px-captcha-modal `body.exclude-from-algorithmic-darkening, > iframe#px-captcha-modal`

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.

Navigation

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Get home recommendations `div.Flex-c11n-8-111-2__sc-n94bjd-0 > div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > h5.Text-c11n-8-111-2__sc-aiai24-0`
About Zillow's Recommendations `div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > div.Flex-c11n-8-111-2__sc-n94bjd-0 > div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > h6.Text-c11n-8-111-2__sc-aiai24-0`

These are opportunities to improve keyboard navigation in your application.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Sign in `div.pfs__sc-1ve4drk-0 > ul.pfs__sc-1elvxkv-1 > li.pfs__sc-585qe5-0 > a.Anchor-c11n-8-112-0__sc-hn4bge-0`
§ 442-H New York Standard Operating Procedures `div.pfs__wsq7ni-0 > div.pfs__sc-1sj5qgb-0 > p.Text-c11n-8-112-0__sc-aiai24-0 > a.Anchor-c11n-8-112-0__sc-hn4bge-0`
§ New York Fair Housing Notice `div.pfs__wsq7ni-0 > div.pfs__sc-1sj5qgb-0 > p.Text-c11n-8-112-0__sc-aiai24-0 > a.Anchor-c11n-8-112-0__sc-hn4bge-0`

These items highlight common accessibility best practices.

○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]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●Form elements have associated labels

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

●`[accesskey]` values are unique

●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.

●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

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●Elements with visible text labels have matching accessible names.

○`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

○`[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

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

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

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

○`[lang]` attributes have a valid value

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

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

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

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

○Identical links have the same purpose.

○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

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)
div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > picture > img `div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > div.StyledBox-c11n-8-111-2__sc-ocjv7k-0 > picture > img`	/s3/web-platform/sub-apps/hops-homepage/hops-homepage.pro...	464 x 360 (1.29)	513 x 416 (1.23)

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
AttributionReporting	/s3/shopper-platform/_next/static/chunks/pages/_app-74514... line 13, col 393
Unload event listeners are deprecated and will be removed.	/HYx10rg3/captcha/captcha.js?a=c&u=2aa68950-39bf-11f1-8f7... line 1, col 206600
Topics	/s3/shopper-platform/_next/static/chunks/pages/_app-74514... line 13, col 393

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
/s3/shopper-platform/_next/static/chunks/pages/_app-74514... line 13, col 176	`[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token.`
www.zillow.com/graphql	`Failed to load resource: the server responded with a status of 403 ()`
www.zillow.com/graphql	`Failed to load resource: the server responded with a status of 403 ()`
/api/user/featureFlags?featureFlags=SHOPPING_ZOAM_MIGRATI...	`Failed to load resource: the server responded with a status of 403 ()`
www.zillow.com/graphql/	`Failed to load resource: the server responded with a status of 403 ()`
www.zillow.com/graphql/	`Failed to load resource: the server responded with a status of 403 ()`
/s3/shopper-platform/_next/static/chunks/pages/_app-74514... line 13, col 176	FetchFeatureFlagFailed: Failed to fetch feature flag. Using default "off" value for graceful degradation. This typically indicates a network issue or misconfigured feature flag. at Object.FetchFeatureFlagValueFailed (https://www.zillowstatic.com/s3/web-platform/sub-apps/buyability-sub-app/buyability-sub-app.prod.main.13920130.3ecd049b/web/663.e0033107.bundle.js:1:26095) at https://www.zillowstatic.com/s3/web-platform/sub-apps/buyability-sub-app/buyability-sub-app.prod.main.13920130.3ecd049b/web/663.e0033107.bundle.js:1:40677 at https://www.zillowstatic.com/s3/web-platform/sub-apps/buyability-sub-app/buyability-sub-app.prod.main.13920130.3ecd049b/web/33.4cbf4102.bundle.js:200:570445 at Generator.<anonymous> (https://www.zillowstatic.com/s3/web-platform/sub-apps/buyability-sub-app/buyability-sub-app.prod.main.13920130.3ecd049b/web/33.4cbf4102.bundle.js:200:567837) at Generator.next (https://www.zillowstatic.com/s3/web-platform/sub-apps/buyability-sub-app/buyability-sub-app.prod.main.13920130.3ecd049b/web/33.4cbf4102.bundle.js:200:566616) at t (https://www.zillowstatic.com/s3/web-platform/sub-apps/buyability-sub-app/buyability-sub-app.prod.main.13920130.3ecd049b/web/33.4cbf4102.bundle.js:200:563242) at b (https://www.zillowstatic.com/s3/web-platform/sub-apps/buyability-sub-app/buyability-sub-app.prod.main.13920130.3ecd049b/web/33.4cbf4102.bundle.js:200:563445)
www.zillow.com/	`Not signed in with the identity provider.`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●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

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○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

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
div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0 `div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0`
div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0 `div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0`
div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0 `div.StyledPropertyCardPhotoWrapper-c11n-8-111-2__sc-1gbptz1-0 > div.StyledPropertyCardPhotoBody-c11n-8-111-2__sc-yln73l-0 > div.StyledPropertyCardPhoto-c11n-8-111-2__sc-radyfj-0 > img.Image-c11n-8-111-2__sc-1rtmhsc-0`

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`