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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.

24

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
/is/image/marriotts7prod/pdt-HVMB-Getty-2179532664-279061...15148.0 s404.7 KiB
/is/image/marriotts7prod/wi-bobwi-beach-aerial-10081:Squa...31313.0 s292.8 KiB
/is/image/marriotts7prod/GettyImages-645799754:Square?wid...18971.0 s232.8 KiB
/is/image/marriotts7prod/pdt-Orlando-Florida-Family-80-19...30342.0 s250.2 KiB
/is/image/marriotts7prod/trey-ratcliff-ritz-carlton-selec...30341.0 s232.0 KiB
/is/image/marriotts7prod/pdt-2102953952-Mtn-Resort-367645...30903.0 s226.4 KiB
/is/image/marriotts7prod/pdt-HamptonsNY-66171985434633-17...50602.0 s272.7 KiB
/is/image/marriotts7prod/anuro-aerial-view-7926:Square?wi...30341.0 s222.1 KiB
/is/image/marriotts7prod/pdt-40312804-Elite-Desti42232-17...46725.0 s264.2 KiB
/is/image/marriotts7prod/wh-klxwh-beachfront-villa-38599-...34511.0 s229.7 KiB
js-cdn.dynatrace.com/jstag/1773f6577b3/bf88204ffh/220110cf75551a30_complete.js3600.0 s157.9 KiB
/is/image/marriotts7prod/bonvoy-tulum-beach-32854:Square?...30341.0 s212.4 KiB
/is/image/marriotts7prod/pdt-2098506720-FamGetReady-19487...31076.0 s211.0 KiB
/MjcD6Bm1EKlUZ1XHh9XfGQWK/b1cuJNX1L5t1cL/Fht-GR0iXgM/XT/1...21600.0 s187.6 KiB
assets.adobedtm.com/697d0c070f1e/f8138fa40779/launch-fccab51974bf.min.js3600.0 s135.3 KiB
/MjcD6Bm1EKlUZ1XHh9XfGQWK/hmcuJNX1/ZRwGGh0iXgM/ex/NKO0Z6S...21600.0 s149.1 KiB
www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045600.0 s69.8 KiB
p11.techlab-cdn.com/e/65226_747628124.js600.0 s32.8 KiB
p11.techlab-cdn.com/e/65319_1825142910.js600.0 s15.9 KiB
cache.marriott.com/aka-fonts/mi-brand-logo-icons/mi-brand-logo-icons.woff21603431.0 s68.0 KiB
p11.techlab-cdn.com/e/65257_1825202430.js600.0 s7.0 KiB
/aka-fonts/mi-portfolio-logo-icons/mi-portfolio-logo-icon...1786150.0 s55.6 KiB
cache.marriott.com/aka-fonts/mi-icons/mi-icons.woff22402846.0 s55.0 KiB
/WRSiteInterceptEngine/?Q_ZID=ZN_1mDx3zMQ39JKIgz3600.0 s4.6 KiB
/dxjsmodule/12.45e656039b3fa23613e1.chunk.js?Q_CLIENTVERS...604800.0 s35.9 KiB
cache.marriott.com/aka-fonts/MarriottDigital/swiss/Swiss721BT-Medium.woff2492917.0 s18.5 KiB
/697d0c070f1e/f8138fa40779/1295ae235af0/RCa52bdc3c21194a8...3600.0 s3.0 KiB
cache.marriott.com/aka-fonts/MarriottDigital/swiss/Swiss721BT-Bold.woff2587308.0 s18.4 KiB
/etc.clientlibs/mi-aem-homepage-spa/clientlibs/clientlib-...1987676.0 s20.2 KiB
/dxjsmodule/37.f07adfd0005923b508c9.chunk.js?Q_CLIENTVERS...604800.0 s18.6 KiB
p11.techlab-cdn.com/e/64885_1825202492.js600.0 s2.0 KiB
cache.marriott.com/aka-fonts/MarriottDigital/swiss/Swiss721BT-Regular.woff22062871.0 s18.9 KiB
/697d0c070f1e/f8138fa40779/1295ae235af0/RC3fb66925816140c...3600.0 s1.8 KiB
/697d0c070f1e/f8138fa40779/1295ae235af0/RCd06bc0c03443484...3600.0 s1.2 KiB
/697d0c070f1e/f8138fa40779/1295ae235af0/RCab87ca3fcdb749a...3600.0 s1.1 KiB
/697d0c070f1e/f8138fa40779/1295ae235af0/RC2aaa310ee0d64b2...3600.0 s1.1 KiB
/697d0c070f1e/f8138fa40779/1295ae235af0/RCf5c3abf99ab3491...3600.0 s901 B
/697d0c070f1e/f8138fa40779/1295ae235af0/RCba59f467f311452...3600.0 s825 B
/697d0c070f1e/f8138fa40779/1295ae235af0/RC1df7abda0ad344f...3600.0 s817 B
/697d0c070f1e/f8138fa40779/1295ae235af0/RC239d77c4f87e444...3600.0 s772 B
/697d0c070f1e/f8138fa40779/1295ae235af0/RC6fbeeaec8d4a443...3600.0 s675 B
/697d0c070f1e/f8138fa40779/1295ae235af0/RC9f8030ed279f485...3600.0 s567 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:0.143927] map[score:0.07042] map[score:0.063677 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:2569 height:348 left:760 right:1108 top:2221 width:348] lhId:page-13-IMG nodeLabel:Sunset view of the outdoor swimming pool at Algarv path:1,HTML,1,BODY,1,DIV,0,MAIN,0,SECTION,0,DIV,6,DIV,0,DIV,0,DIV,1,DIV,0,DIV,0,UL,2,LI,0,DIV,0,DIV,0,DIV,0,A,0,DIV,0,PICTURE,3,IMG selector:a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image snippet:<img src="https://cache.marriott.com/is/image/marriotts7prod/mc-faosp-outdoor-pool-3…" class="image lazy merchandising-card-tile__container__image merchandising-card-ti…" alt="Sunset view of the outdoor swimming pool at Algarv" data-src="https://cache.marriott.com/content/dam/marriott-digital/mc/emea/hws/f/faos…" loading="lazy"> type:node]]] type:subitems]] map[score:0.003757] map[score:0.002614] map[score:0.001127]]

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:82.581 source:map[column:292 line:27 type:source-location url:https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045 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:34.595 source:map[column:261787 line:0 type:source-location url:https://www.marriott.com/MjcD6Bm1EKlUZ1XHh9XfGQWK/b1cuJNX1L5t1cL/Fht-GR0iXgM/XT/10Uxo_GQAC urlProvider:network]] map[reflowTime:2.46 source:map[column:352179 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/pages/_app-5d3573caf6c31bc7.js urlProvider:network]] map[reflowTime:20.859 source:map[column:1.104442e+06 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/pages/_app-5d3573caf6c31bc7.js urlProvider:network]] map[reflowTime:21.121 source:map[column:8448 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/95560.5f42ab5c874ec00a.js urlProvider:network]] map[reflowTime:4.441 source:map[column:1.209944e+06 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/vendor-2e92c4c9a30f862a.js urlProvider:network]] map[reflowTime:4.461 source:map[column:1.683307e+06 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/vendor-2e92c4c9a30f862a.js urlProvider:network]] map[reflowTime:1.024 source:map[column:1.23837e+06 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/vendor-2e92c4c9a30f862a.js urlProvider:network]] map[reflowTime:0.432 source:map[column:1.112434e+06 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/pages/_app-5d3573caf6c31bc7.js urlProvider:network]] map[reflowTime:7.905 source:map[column:383836 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/pages/_app-5d3573caf6c31bc7.js urlProvider:network]] map[reflowTime:0.632 source:map[column:684259 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/pages/_app-5d3573caf6c31bc7.js urlProvider:network]] map[reflowTime:18.022 source:map[column:1.487258e+06 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/vendor-2e92c4c9a30f862a.js urlProvider:network]] map[reflowTime:0.472 source:map[column:329211 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/pages/_app-5d3573caf6c31bc7.js urlProvider:network]] map[reflowTime:15.761 source:map[column:329433 line:0 type:source-location url:https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/pages/_app-5d3573caf6c31bc7.js urlProvider:network]] map[reflowTime:15.762 source:map[column:129 line:146 type:source-location url:https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045 urlProvider:network]] map[reflowTime:1.557 source:map[column:387 line:729 type:source-location url:https://js-cdn.dynatrace.com/jstag/1773f6577b3/bf88204ffh/220110cf75551a30_complete.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.

URLResource SizeEst Savings
Suspension bridge over river gorge a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-HVMB-Getty-2179532664-279061...404.1 KiB332.1 KiB
div#vixdevja71owkbrs > a.pdc-card > picture > img.image div#vixdevja71owkbrs > a.pdc-card > picture > img.image
/is/image/marriotts7prod/wi-bobwi-beach-aerial-10081:Squa...292.3 KiB220.2 KiB
House with private pool and patio furniture a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-HamptonsNY-66171985434633-17...272.1 KiB200.2 KiB
House among coastal vegetation next to sandy beach a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-40312804-Elite-Desti42232-17...263.7 KiB191.5 KiB
div#oyrfyztj66mi1xdz > a.pdc-card > picture > img.image div#oyrfyztj66mi1xdz > a.pdc-card > picture > img.image
/is/image/marriotts7prod/pdt-Orlando-Florida-Family-80-19...249.7 KiB177.7 KiB
div#kiyoizmtmkbzq2rr > a.pdc-card > picture > img.image div#kiyoizmtmkbzq2rr > a.pdc-card > picture > img.image
/is/image/marriotts7prod/GettyImages-645799754:Square?wid...232.3 KiB160.3 KiB
div#xhbtzlrp1t0t8enp > a.pdc-card > picture > img.image div#xhbtzlrp1t0t8enp > a.pdc-card > picture > img.image
/is/image/marriotts7prod/trey-ratcliff-ritz-carlton-selec...231.5 KiB159.5 KiB
div#kibowebuw5dfqobe > a.pdc-card > picture > img.image div#kibowebuw5dfqobe > a.pdc-card > picture > img.image
/is/image/marriotts7prod/wh-klxwh-beachfront-villa-38599-...229.2 KiB157.2 KiB
Mountain Resort Home_516628961 a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-2102953952-Mtn-Resort-367645...225.9 KiB153.8 KiB
div#wwbwprnbmzejflcd > a.pdc-card > picture > img.image div#wwbwprnbmzejflcd > a.pdc-card > picture > img.image
/is/image/marriotts7prod/anuro-aerial-view-7926:Square?wi...221.6 KiB149.6 KiB
div#biqayvec0e6i0xs9 > a.pdc-card > picture > img.image div#biqayvec0e6i0xs9 > a.pdc-card > picture > img.image
/is/image/marriotts7prod/bonvoy-tulum-beach-32854:Square?...211.9 KiB141.0 KiB
2098506720_FamGetReady_1408158072 a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-2098506720-FamGetReady-19487...210.5 KiB140.1 KiB
HVMB_Punta Mita, Mexico_40368585_Four Seasons1 a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/pdt-40368585-Four-Seasons1-16-26...105.1 KiB44.7 KiB
Sunset view of the outdoor swimming pool at Algarv a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/mc-faosp-outdoor-pool-35595:Squa...77.3 KiB23.2 KiB
Couple Relaxing At Their Living Room a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/pmisi-couple-livingroom-7618:Squ...71.6 KiB21.5 KiB
Hotel overlooking the City of London's Skyline a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/mc-lonch-city-of-london-skyline-...61.6 KiB18.5 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:286.664 label:Time to first byte subpart:timeToFirstByte] map[duration:2881.263 label:Resource load delay subpart:resourceLoadDelay] map[duration:250.777 label:Resource load duration subpart:resourceLoadDuration] map[duration:95.275 label:Element render delay subpart:elementRenderDelay]]
lhId: page-16-IMG
nodeLabel: Sunset view of the outdoor swimming pool at Algarv
path: 1,HTML,1,BODY,1,DIV,0,MAIN,0,SECTION,0,DIV,3,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,PICTURE,3,IMG
selector: div.hb-item > div.sc-b0e7127c-0 > picture > img.image
snippet: <img src="https://cache.marriott.com/is/image/marriotts7prod/mc-faosp-outdoor-pool-3…" class="image eager heroBanner_background_image hb__img d-block hb-3x1-ratio" alt="Sunset view of the outdoor swimming pool at Algarv" data-src="https://cache.marriott.com/content/dam/marriott-digital/mc/emea/hws/f/faos…" loading="eager" decoding="sync" fetchpriority="high">

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-16-IMG
nodeLabel: Sunset view of the outdoor swimming pool at Algarv
path: 1,HTML,1,BODY,1,DIV,0,MAIN,0,SECTION,0,DIV,3,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,PICTURE,3,IMG
selector: div.hb-item > div.sc-b0e7127c-0 > picture > img.image
snippet: <img src="https://cache.marriott.com/is/image/marriotts7prod/mc-faosp-outdoor-pool-3…" class="image eager heroBanner_background_image hb__img d-block hb-3x1-ratio" alt="Sunset view of the outdoor swimming pool at Algarv" data-src="https://cache.marriott.com/content/dam/marriott-digital/mc/emea/hws/f/faos…" loading="eager" decoding="sync" fetchpriority="high">

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.

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

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: 942 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.

Layout shift score
0.070
0.064
0.004
0.003
0.001
0.001
0.001
0.001
0.000

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.

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.

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
www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb0455.0 s4.3 s46 ms
Unattributable1.8 s262 ms0.0 ms
js-cdn.dynatrace.com/jstag/1773f6577b3/bf88204ffh/220110cf75551a30_complete.js1.4 s1.2 s35 ms
/MjcD6Bm1EKlUZ1XHh9XfGQWK/b1cuJNX1L5t1cL/Fht-GR0iXgM/XT/1...1.2 s882 ms57 ms
/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-...1.1 s305 ms16 ms
www.marriott.com/default.mi1.0 s14 ms2.5 ms
/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-...967 ms848 ms113 ms
/MjcD6Bm1EKlUZ1XHh9XfGQWK/hmcuJNX1/ZRwGGh0iXgM/ex/NKO0Z6S...697 ms618 ms48 ms
assets.adobedtm.com/697d0c070f1e/f8138fa40779/launch-fccab51974bf.min.js603 ms464 ms78 ms
/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-...352 ms44 ms201 ms
/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-...243 ms239 ms0.7 ms
/697d0c070f1e/f8138fa40779/1295ae235af0/RCab87ca3fcdb749a...164 ms124 ms0.5 ms
/697d0c070f1e/f8138fa40779/1295ae235af0/RCd06bc0c03443484...147 ms110 ms0.4 ms
/697d0c070f1e/f8138fa40779/1295ae235af0/RCa52bdc3c21194a8...118 ms88 ms1.1 ms
/dxjsmodule/37.f07adfd0005923b508c9.chunk.js?Q_CLIENTVERS...116 ms102 ms4.5 ms
/697d0c070f1e/f8138fa40779/1295ae235af0/RC2aaa310ee0d64b2...116 ms85 ms0.5 ms
p11.techlab-cdn.com/e/65319_1825142910.js92 ms87 ms3.6 ms
/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-...84 ms83 ms0.5 ms
/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-...67 ms50 ms0.5 ms
/697d0c070f1e/f8138fa40779/1295ae235af0/RCf5c3abf99ab3491...66 ms48 ms0.5 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 Evaluation10.1 s
Other2.7 s
Style & Layout1.1 s
Script Parsing & Compilation712 ms
Garbage Collection513 ms
Rendering345 ms
Parse HTML & CSS222 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
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 7.9 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
Mountain Resort Home_516628961 a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-2102953952-Mtn-Resort-367645...
House among coastal vegetation next to sandy beach a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-40312804-Elite-Desti42232-17...
2098506720_FamGetReady_1408158072 a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-2098506720-FamGetReady-19487...
House with private pool and patio furniture a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-HamptonsNY-66171985434633-17...
Suspension bridge over river gorge a.chevronContainer > div.card-layered > picture > img.image
/is/image/marriotts7prod/pdt-HVMB-Getty-2179532664-279061...
HVMB_Punta Mita, Mexico_40368585_Four Seasons1 a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/pdt-40368585-Four-Seasons1-16-26...
Hotel overlooking the City of London's Skyline a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/mc-lonch-city-of-london-skyline-...
Sunset view of the outdoor swimming pool at Algarv a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/mc-faosp-outdoor-pool-35595:Squa...
Young family walking through the airport a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/bonvoy-getty-1352753120-23352-20...
Couple Relaxing At Their Living Room a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/pmisi-couple-livingroom-7618:Squ...
A person using their smart phone to access the Mar a.merchandising-card-tile > div.merchandising-card-tile__container > picture > img.image
/is/image/marriotts7prod/jw-ctdca-bonvoy-app-38928:Square...
Opt-out Icon div.sc-fa9e1a8d-9 > a.t-font-alt-s > span.html-content > img.ca__full-width-img
cache.marriott.com/aka-fonts/ccpa/privacyoptions29x14.png

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

Optimize DOM size
Font display
Modern HTTP
Optimize viewport for mobile
Minify JavaScript
User Timing marks and measures 4 user timings
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 6 animated elements found
Network Requests
Network Round Trip Times 40 ms
Server Backend Latencies 410 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 170 ms
INP breakdown
95

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
Vacation Home Rentals div.merchandising-card-tile__container__content > div.merchandising-card-tile__container__content__card-texts > div.d-flex > h4.t-subtitle-xl

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
glide-bullet-0 div.center-align > div.carouselControlType1 > div.carousel__dots > button.glide__bullet--active
glide-bullet-1 div.center-align > div.carouselControlType1 > div.carousel__dots > button
glide-bullet-2 div.center-align > div.carouselControlType1 > div.carousel__dots > button
glide-bullet-3 div.center-align > div.carouselControlType1 > div.carousel__dots > button
glide-bullet-4 div.center-align > div.carouselControlType1 > div.carousel__dots > button
glide-bullet-5 div.center-align > div.carouselControlType1 > div.carousel__dots > button
page-1 div.center-align > div.carouselControlType1 > div > button.glide__bullet--active
page-2 div.center-align > div.carouselControlType1 > div > button
page-3 div.center-align > div.carouselControlType1 > div > button
page-4 div.center-align > div.carouselControlType1 > div > button
page-5 div.center-align > div.carouselControlType1 > div > button
Careers div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
News div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Our Stories div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Digital Accessibility div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Small & Midsize Business Program div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Travel Professionals div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Group Partners div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Hotel Development div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Affiliates div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Help & Contact Us div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Look Up Reservation div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Global Reservation Phone Numbers div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Best Rate Guarantee div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Missing Stay Form div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Site Map div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Privacy Center div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Your Privacy Choices div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Terms of Use div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Program Terms & Conditions div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s
Sustainability in the Supply Chain div.sc-fa9e1a8d-11 > div > div.sc-fa9e1a8d-9 > a.t-font-alt-s

These items highlight common accessibility best practices.

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
DESIGNED TO FEEL DIFFERENT Autograph Collection All-Inclusive Beach Resorts W… div.swiper-slide > div.sc-2fdca925-0 > div#wwbwprnbmzejflcd > a.pdc-card
VOLCANIC VISTAS, SURF DAYS Things to Do in Maui Pick your Hawaiian adventure:… div.swiper-slide > div.sc-2fdca925-0 > div#kiyoizmtmkbzq2rr > a.pdc-card
Vacation Home Rentals div.aem-Grid > div.aem-GridColumn > div.sc-c23935a2-0 > a.merchandising-card-tile
Family li.glide__slide--active > div.p-0 > div.sc-1ca87403-0 > a.chevronContainer
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
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.
`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
`<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
No element has a `[tabindex]` value greater than 0
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 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
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.
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.
96

Best Practices

General

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
Error occured while running DST TypeError: Failed to construct 'URL': Invalid URL
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lh (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:52929) at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127484) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100411) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Error: Minified React error #423; visit https://reactjs.org/docs/error-decoder.html?invariant=423 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at i (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:127143) at oO (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105468) at oM (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:105338) at ox (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:102109) at oS (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:100664) at x (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137460) at MessagePort.T [as $$__onmessage] (https://www.marriott.com/mi-assets/mi-static/mi-homepage-renderer/web-rel-26.3.2-03232026/_next/static/chunks/framework-4d641e3b1d0b3068.js:1:137990) at MessagePort.<anonymous> (https://www.marriott.com/resources/4f96b7c830406f938b23f5e9f0ee55b0f0aafa2feb045:27:358)
Refused to set unsafe header "Cookie"

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
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Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

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.marriott.com/loyalty/earn/credit-card-rewards.miLearn More

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

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