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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

34

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
tags.tiqcdn.com/utag/carlson/rh-com/prod/utag.js300.0 s55.2 KiB
cdn.cookielaw.org/scripttemplates/202405.2.0/otBannerSdk.js86400.0 s109.7 KiB
statics.radissonhotels.com/main/img/doorknob.jpg1947074.0 s218.6 KiB
tags.tiqcdn.com/utag/carlson/rh-com/prod/utag.87.js?utv=ut4.49.202602261336300.0 s12.2 KiB
/Radisson-DXCoE/RadissonCDN/e802ad91ee6883e1989ba3365a7d5...300.0 s7.0 KiB
tags.tiqcdn.com/utag/carlson/rh-com/prod/utag.190.js?utv=ut4.49.202604131519300.0 s5.1 KiB
tags.tiqcdn.com/utag/carlson/rh-com/prod/utag.61.js?utv=ut4.49.202604100851300.0 s4.5 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js86400.0 s9.1 KiB
tags.tiqcdn.com/utag/carlson/rh-com/prod/utag.96.js?utv=ut4.49.202602261336300.0 s3.7 KiB
s.go-mpulse.net/boomerang/G2XZU-QLPA9-MKHVD-WHFXL-EK9LZ604800.0 s34.6 KiB
/logos/ac4b0726-1814-4082-94b5-68be7a21b03b/e7ace784-8b5a...86400.0 s4.1 KiB
cdn.cookielaw.org/logos/static/powered_by_logo.svg86400.0 s2.6 KiB
/utag/tiqapp/utag.v.js?a=carlson/rh-com/202604211029&cb=1...300.0 s430 B
/image/radisson-hotels-app/promotional/16256-142038-m4188...604800.0 s1.2 KiB

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:0.10450799999999999] map[node:map[boundingRect:map[bottom:961 height:855 left:20 right:392 top:106 width:372] lhId:page-1-DIV nodeLabel:Your access has been restricted For security reasons, your access to this page… path:1,HTML,1,BODY,6,DIV,1,DIV selector:body > div.container > div.card snippet:<div class="card"> type:node] score:0.059981] map[node:map[boundingRect:map[bottom:823 height:492 left:0 right:412 top:331 width:412] lhId:page-2-DIV nodeLabel:This website uses Cookies and related technologies (such as web beacons, pixel … path:1,HTML,1,BODY,9,DIV,1,DIV selector:body > div#onetrust-consent-sdk > div#onetrust-banner-sdk snippet:<div id="onetrust-banner-sdk" class="otFlat bottom ot-wo-title vertical-align-content ot-buttons-fw" tabindex="0" role="region" aria-label="Cookie banner" style="bottom: 0px;"> type:node] score:0.012349] map[node:map[boundingRect:map[bottom:823 height:492 left:0 right:412 top:331 width:412] lhId:page-2-DIV nodeLabel:This website uses Cookies and related technologies (such as web beacons, pixel … path:1,HTML,1,BODY,9,DIV,1,DIV selector:body > div#onetrust-consent-sdk > div#onetrust-banner-sdk snippet:<div id="onetrust-banner-sdk" class="otFlat bottom ot-wo-title vertical-align-content ot-buttons-fw" tabindex="0" role="region" aria-label="Cookie banner" style="bottom: 0px;"> type:node] score:0.009117] map[node:map[boundingRect:map[bottom:823 height:492 left:0 right:412 top:331 width:412] lhId:page-2-DIV nodeLabel:This website uses Cookies and related technologies (such as web beacons, pixel … path:1,HTML,1,BODY,9,DIV,1,DIV selector:body > div#onetrust-consent-sdk > div#onetrust-banner-sdk snippet:<div id="onetrust-banner-sdk" class="otFlat bottom ot-wo-title vertical-align-content ot-buttons-fw" tabindex="0" role="region" aria-label="Cookie banner" style="bottom: 0px;"> type:node] score:0.008079] map[node:map[boundingRect:map[bottom:823 height:492 left:0 right:412 top:331 width:412] lhId:page-2-DIV nodeLabel:This website uses Cookies and related technologies (such as web beacons, pixel … path:1,HTML,1,BODY,9,DIV,1,DIV selector:body > div#onetrust-consent-sdk > div#onetrust-banner-sdk snippet:<div id="onetrust-banner-sdk" class="otFlat bottom ot-wo-title vertical-align-content ot-buttons-fw" tabindex="0" role="region" aria-label="Cookie banner" style="bottom: 0px;"> type:node] score:0.007]]

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: 5.0 s
URLTime Spent
radissonhotels.com/762 ms
www.radissonhotels.com/785 ms
www.radissonhotels.com/en-us/3.5 s
www.radissonhotels.com/en-us/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Your access has been restricted For security reasons, your access to this page… body > div.container > div.card
0.060
This website uses Cookies and related technologies (such as web beacons, pixel … body > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.012
This website uses Cookies and related technologies (such as web beacons, pixel … body > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.009
This website uses Cookies and related technologies (such as web beacons, pixel … body > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.008
This website uses Cookies and related technologies (such as web beacons, pixel … body > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.007
This website uses Cookies and related technologies (such as web beacons, pixel … body > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.004
This website uses Cookies and related technologies (such as web beacons, pixel … body > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.002
This website uses Cookies and related technologies (such as web beacons, pixel … body > div#onetrust-consent-sdk > div#onetrust-banner-sdk
0.002

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: 860 ms 693.8 KiB
URLTransfer SizeEst Savings
eu.acsbapp.com/apps/app/dist/js/app.js216.7 KiB114.2 KiB
www.googletagmanager.com/gtag/js84.7 KiB64.7 KiB
www.googletagmanager.com/gtag/js?id=AW-994752581&cx=c&gtm=4e64h1146.8 KiB64.1 KiB
www.googletagmanager.com/gtag/js?id=AW-736234922&cx=c&gtm=4e64h1137.2 KiB64.1 KiB
www.googletagmanager.com/gtag/js?id=G-P3SV6NFEMN&cx=c&gtm=4e64h1171.3 KiB63.0 KiB
www.googletagmanager.com/gtag/js?id=HA-100264210&cx=c&gtm=4e64h1102.4 KiB59.6 KiB
www.googletagmanager.com/gtag/js?id=DC-9461278&cx=c&gtm=4e64h1131.8 KiB59.4 KiB
cdn.cookielaw.org/scripttemplates/202405.2.0/otBannerSdk.js109.5 KiB57.9 KiB
www.googletagmanager.com/gtag/js84.7 KiB50.3 KiB
/bG0l2lzoV33HpCjpZpyM/SYwiXh6QJ8DLkt/U2MDMBYB/Oyd/GRSw2bg4C183.0 KiB39.0 KiB
/bG0l2lzoV33HpCjpZpyM/NfwiXhO1/HQMKMBYB/fiZ/JUXkrGiMQAg?v...160.7 KiB32.9 KiB
tags.tiqcdn.com/utag/carlson/rh-com/prod/utag.js54.8 KiB24.6 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
/bG0l2lzoV33HpCjpZpyM/NfwiXhO1/HQMKMBYB/fiZ/JUXkrGiMQAg?v...1.4 s1.3 s68 ms
/bG0l2lzoV33HpCjpZpyM/SYwiXh6QJ8DLkt/U2MDMBYB/Oyd/GRSw2bg4C915 ms768 ms78 ms
Unattributable807 ms281 ms0.0 ms
www.radissonhotels.com/en-us/786 ms281 ms6.7 ms
eu.acsbapp.com/apps/app/dist/js/app.js578 ms410 ms116 ms
www.googletagmanager.com/gtag/js?id=G-P3SV6NFEMN&cx=c&gtm=4e64h1421 ms345 ms71 ms
tags.tiqcdn.com/utag/carlson/rh-com/prod/utag.js382 ms301 ms42 ms
cdn.cookielaw.org/scripttemplates/202405.2.0/otBannerSdk.js371 ms230 ms63 ms
www.googletagmanager.com/gtag/js?id=AW-736234922&cx=c&gtm=4e64h1366 ms295 ms69 ms
www.googletagmanager.com/gtag/js?id=AW-994752581&cx=c&gtm=4e64h1308 ms247 ms59 ms
www.googletagmanager.com/gtag/js?id=DC-9461278&cx=c&gtm=4e64h1249 ms197 ms49 ms
www.googletagmanager.com/gtag/js246 ms125 ms118 ms
www.googletagmanager.com/gtag/js?id=HA-100264210&cx=c&gtm=4e64h1159 ms117 ms41 ms
s.go-mpulse.net/boomerang/G2XZU-QLPA9-MKHVD-WHFXL-EK9LZ88 ms63 ms19 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation5.1 s
Script Parsing & Compilation819 ms
Other819 ms
Style & Layout239 ms
Garbage Collection132 ms
Rendering78 ms
Parse HTML & CSS73 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 reasonFailure type
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
The page has an unload handler in a sub frame.Actionable
Only pages with a status code of 2XX can be cached.Not actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not 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: 0.0 ms 2.9 KiB
URLTransfer SizeEst Savings
:root { --primary-color: #222222; --accent-color: #9e8a5b; --text-main: #333333; … } …6.4 KiB2.9 KiB

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: 0.0 ms 18.8 KiB
URLTransfer SizeEst Savings
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …21.1 KiB18.8 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
Radisson body > div.container > div.logo-header > img.logo
/Radisson-DXCoE/RadissonCDN/e802ad91ee6883e1989ba3365a7d5...

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

●Document request latency
●Optimize DOM size
●Font display
●Forced reflow
●Improve image delivery
●LCP breakdown
●Modern HTTP
●Network dependency tree
●Render blocking requests
●Optimize viewport for mobile
●Minify JavaScript
●Avoids enormous network payloads Total size was 1,888 KiB
●User Timing marks and measures 7 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 1 animated element found
●Network Requests
●Network Round Trip Times 230 ms
●Server Backend Latencies 240 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 190 ms
○INP breakdown
○LCP request discovery
98

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.

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
How to resolve this: div.container > div.card > section.steps-section > h3

These are opportunities to improve keyboard navigation in your application.

○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
●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
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[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
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements 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
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[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.
○Elements with visible text labels have matching accessible names.
○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.
73

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.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
QR Code div.card > div.app-promo > div.qr-box > img.qr-img
/image/radisson-hotels-app/promotional/16256-142038-m4188...80 x 80 (1.00)670 x 637 (1.05)

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
s.go-mpulse.net/boomerang/G2XZU-QLPA9-MKHVD-WHFXL-EK9LZ line 9, col 11379

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
www.radissonhotels.com/en-us/
Failed to load resource: the server responded with a status of 403 ()

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
/bG0l2lzoV33HpCjpZpyM/SYwiXh6QJ8DLkt/U2MDMBYB/Oyd/GRSw2bg4C
●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
●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
73

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 destinationLink Text
www.radissonhotels.com/en-us/privacyClick Here
www.radissonhotels.com/en-us/cookie-policyClick Here
www.radissonhotels.com/en-us/cookie-policyMore information

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

Crawling and Indexing

Pages with unsuccessful HTTP status codes may not be indexed properly. Learn more about HTTP status codes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
●Links are crawlable
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○robots.txt is valid
○Document has a valid `rel=canonical`

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