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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.

12

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
ide.user1st.info/menu/vendor.js3600.0 s801.4 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...0.0 ms505.6 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...0.0 ms452.4 KiB
/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-BestHospi...0.0 ms442.7 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...0.0 ms391.8 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...0.0 ms311.1 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...0.0 ms176.3 KiB
i.ytimg.com/vi/_PyhoRA7Vas/maxresdefault.jpg300.0 s168.0 KiB
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...0.0 ms139.2 KiB
/files/MSHealth/Assets/Media/final/new-york-city-brooklyn...0.0 ms123.4 KiB
www.mountsinai.org/mshealth/themes/default/media/fonts//fa-brands-400.woff20.0 ms115.8 KiB
/files/MSHealth/Assets/Media/final/mout-sinai-pedatrics-2...0.0 ms84.6 KiB
ide.user1st.info/content/ufeInit.prod.js3600.0 s95.5 KiB
/files/MSHealth/Assets/HS/MSHS-Landing-MyMountSinai-Mobil...0.0 ms71.5 KiB
/files/MSHealth/Assets/Media/final/mount-sinai-senior-3_m...0.0 ms71.4 KiB
/mshealth/themes/default/media/fonts/MountSinai-SansVFIta...0.0 ms71.2 KiB
ide.user1st.info/menu/polyfills.js3600.0 s84.9 KiB
/mshealth/themes/default/media/fonts//fontawesome-webfont...0.0 ms65.5 KiB
/mshealth/themes/default/media/fonts/MountSinai-SansVF_W_...0.0 ms65.1 KiB
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...0.0 ms62.8 KiB
i.ytimg.com/vi/JXARh404OMA/maxresdefault.jpg300.0 s58.9 KiB
/files/MSHealth/Assets/Media/final/mount-sinai-home-servi...0.0 ms55.2 KiB
www.juicer.io/api/media/28295660?s=1c1321758d72a87df1dae04e39c4c435371351cf1209600.0 s542.0 KiB
cdn.plu.mx/extjs/xss.js0.0 ms49.8 KiB
/files/MSHealth/Assets/HS/MSHS-Landing-FindaDoctor-Mobile...0.0 ms47.5 KiB
ufe.user1st.info/content/frontend.prod.js3600.0 s42.1 KiB
/mshealth/themes/default/styles/style.css?v=1768312164000...0.0 ms29.3 KiB
ide.user1st.info/menu/main.js3600.0 s27.9 KiB
/mshealth/themes/default/styles/override.css?v=1768312164...0.0 ms22.3 KiB
www.mountsinai.org/mshealth/themes/default/styles/vendor.css0.0 ms22.2 KiB
cdn.plu.mx/widget-group.js60.0 s20.1 KiB
cdn.plu.mx/widget-person.js60.0 s19.9 KiB
/assets/notification-8e4e66be9c744d292e9cf5c99e9a0333bf61...0.0 ms17.7 KiB
www.mountsinai.org/gsights/vendor/requirejs/require.js0.0 ms17.7 KiB
mountsinai.containers.piwik.pro/ppms.js21600.0 s26.0 KiB
/api/posts/507360690/images.jpg?external_id=1436163448555...1209600.0 s124.6 KiB
/mshealth/themes/default/media/images/at-a-glance-bkgd_mo...0.0 ms12.0 KiB
/api/posts/507405530/images.jpg?external_id=1437630158408...1209600.0 s112.8 KiB
/mshealth/themes/default/scripts/libraries/jquery-ui.min....0.0 ms9.6 KiB
/api/posts/507332706/images.jpg?external_id=1434569298714...1209600.0 s91.4 KiB
/mshealth/themes/default/scripts/libraries/typeahead.js?v...0.0 ms8.6 KiB
/mshealth/themes/default/scripts/main.min.js?v=1768312164...0.0 ms7.6 KiB
web-2-tel.com/org-sdk?identifier=a03de5798cc140ccab3e8fd645259b3f0.0 ms6.2 KiB
web-2-tel.com/org-sdk?identifier=a03de5798cc140ccab3e8fd645259b3f0.0 ms6.2 KiB
doctor.mountsinai.org/v3/_next/static/chunks/15-180dc80c167df091.js1899934.0 s63.1 KiB
www.mountsinai.org/gsights/vendor/ua-parser/ua-parser.min.js0.0 ms5.9 KiB
doctor.mountsinai.org/v3/_next/static/chunks/533-0efdb033b43b8392.js346047.0 s32.6 KiB
www.mountsinai.org/gsights/WebsiteClient.js0.0 ms5.4 KiB
www.mountsinai.org/mshealth/themes/default/media/images/logo-color.png0.0 ms5.1 KiB
cdn.plu.mx/group.css60.0 s4.8 KiB
s.go-mpulse.net/boomerang/BFBHG-C2X3N-GCWAN-UMPXK-HSX6S604800.0 s45.8 KiB
mountsinaiassetsbucket.s3.us-west-1.amazonaws.com/unifiedORGscript.js0.0 ms4.5 KiB
doctor.mountsinai.org/v3/_next/static/chunks/ef3379c7-757bb601fb433089.js1847207.0 s46.0 KiB
cdn.plu.mx/person.css60.0 s4.4 KiB
/dashboard/bots/avatars/000/003/698/medium/CRTV-8593-MSHS...0.0 ms4.2 KiB
/mshealth/themes/default/scripts/dsmGlobal.js?v=176831216...0.0 ms3.7 KiB
doctor.mountsinai.org/v3/_next/static/chunks/913-63ec4b3db651c3b1.js1746752.0 s37.2 KiB
/mshealth/themes/default/scripts/libraries/bootstrap-type...0.0 ms3.5 KiB
www.mountsinai.org/gsight.js?v=1768312164000&build_mshealth=28920.0 ms3.4 KiB
ide.user1st.info/menu/styles.css3600.0 s4.1 KiB
www.mountsinai.org/gsights/vendor/ipaddr/ipaddr.min.js0.0 ms3.0 KiB
www.mountsinai.org/gsights/vendor/ejs/ejs.min.js0.0 ms2.8 KiB
/mshealth/themes/default/scripts/libraries/jquery.dotdotd...0.0 ms2.7 KiB
ide.user1st.info/content/switcher.prod.js3600.0 s3.4 KiB
/mshealth/themes/default/scripts/libraries/modernizr-cust...0.0 ms2.1 KiB
doctor.mountsinai.org/v3/_next/static/css/de037e5a5192cc6b.css762862.0 s18.1 KiB
/mshealth/themes/default/scripts/make-an-appointment.js?v...0.0 ms1.7 KiB
doctor.mountsinai.org/v3/_next/static/chunks/62-760c5fa8a846df0a.js2119016.0 s16.1 KiB
/mshealth/themes/default/scripts/nav-main.js?v=1768312164...0.0 ms1.5 KiB
doctor.mountsinai.org/v3/_next/static/chunks/511-e9fc27818609fa81.js1747990.0 s14.9 KiB
rum-static.pingdom.net/prum.min.js43200.0 s2.8 KiB
www.mountsinai.org/gsights/vendor/js-cookie/js.cookie.min.js0.0 ms1.4 KiB
/mshealth/themes/default/styles/owl-carousel.css?v=176831...0.0 ms1.3 KiB
ide.user1st.info/menu/runtime.js3600.0 s1.6 KiB
www.mountsinai.org/gsights/vendor/promise-polyfill/promise.min.js0.0 ms1.3 KiB
/mshealth/themes/default/scripts/find-a-doctor.js?v=17683...0.0 ms1.1 KiB
www.mountsinai.org/mshealth/alerts/alert.js?v=1768312164000build_mshealth=28920.0 ms1.1 KiB
cdn.penrod.co/scripts/Penrod.HCWT-min.js14400.0 s1.5 KiB
www.mountsinai.org/gsights/css/invite.css0.0 ms909 B
/mshealth/themes/default/scripts/socialmedia-wall.js?v=17...0.0 ms855 B
/mshealth/themes/default/scripts/epic/waittime.js?v=17683...0.0 ms840 B
doctor.mountsinai.org/v3/_next/static/chunks/317-a4ec49a3d85cbd3d.js1643860.0 s8.4 KiB
/mshealth/themes/default/scripts/responsive-table.js?v=17...0.0 ms825 B
/mshealth/themes/default/scripts/mtiFontTrackingCode.js?v...0.0 ms780 B
doctor.mountsinai.org/v3/_next/static/chunks/977-e699abc28a6fc8dc.js839021.0 s7.3 KiB
www.mountsinai.org/mshealth/alerts/alert.css0.0 ms694 B
/t/1.css?apiType=css&projectid=dce02f95-1b56-4a71-b18f-24...1.0 s639 B
/mshealth/themes/default/styles/fonts.css?v=1768312164000...0.0 ms579 B
/mshealth/themes/default/scripts/our-services.js?v=176831...0.0 ms553 B
cdn.jsdelivr.net/npm/iframe-resizer@4/js/iframeResizer.contentWindow.min.js604800.0 s5.2 KiB
doctor.mountsinai.org/v3/_next/static/chunks/959-9639008b2e27c52a.js1758002.0 s5.4 KiB
/v3/_next/static/chunks/app/(page)/layout-3a5f76bf636240e...711574.0 s4.7 KiB
www.mountsinai.org/gsights/css/client-styles.css0.0 ms464 B
doctor.mountsinai.org/v3/_next/static/chunks/936-7a4348de24e6c6ea.js818184.0 s4.4 KiB
doctor.mountsinai.org/v3/_next/static/chunks/790-076a8c26660a51b4.js2154436.0 s4.2 KiB
doctor.mountsinai.org/v3/_next/static/chunks/187-d8df9c4aa1d102d8.js1369681.0 s3.3 KiB
doctor.mountsinai.org/v3/_next/static/chunks/223-e30e1b923ff90e33.js1672373.0 s2.9 KiB
doctor.mountsinai.org/v3/_next/static/chunks/webpack-03afe39b92f014b0.js571098.0 s1.9 KiB
doctor.mountsinai.org/v3/_next/static/chunks/main-app-a3bb9e341622b11a.js319962.0 s587 B
doctor.mountsinai.org/v3/_next/static/css/69e0efe6d9ae8685.css2020279.0 s929 B
doctor.mountsinai.org/v3/_next/static/chunks/app/layout-6dd72b23e333b187.js2033959.0 s854 B
/a?v=3&t=l&pid=120132506&rv=64k0&tag_exp=0~115938465~1159...0.0 ms59 B
doctor.mountsinai.org/v3/_next/static/css/114ae72f18906c00.css1584485.0 s588 B
/v3/_next/static/chunks/app/(standalone)/fad/autocomplete...1477023.0 s508 B
s.go-mpulse.net/boomerang/BFBHG-C2X3N-GCWAN-UMPXK-HSX6S604800.0 s0 B
mountsinai.containers.piwik.pro/ppms.js21600.0 s0 B
cdn.penrod.co/scripts/Penrod.HCWT-min.js14400.0 s0 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:0.163566] map[node:map[boundingRect:map[bottom:5846 height:5716 left:0 right:412 top:130 width:412] lhId:page-20-BODY nodeLabel:body.mshs-home path:1,HTML,1,BODY selector:body.mshs-home snippet:<body class="mshs-home x-android alert-offset" data-site="mshealth" style="position: relative; min-height: 100%; top: 0px; margin-top: 130px;"> type:node] score:0.157959] map[node:map[boundingRect:map[bottom:1364 height:176 left:0 right:412 top:1188 width:412] lhId:page-18-DIV nodeLabel:Choose a Location Hospitals Urgent Care/Walk-In Select Go View More Locations path:1,HTML,1,BODY,16,DIV,0,DIV,0,DIV,6,ASIDE,1,DIV,0,SECTION,0,DIV,0,DIV,0,DIV selector:section.form > div.container > div.row > div.col-xs-12 snippet:<div class="col-xs-12"> type:node] score:0.003278] map[node:map[boundingRect:map[bottom:110 height:90 left:20 right:392 top:20 width:372] lhId:page-19-DIV nodeLabel:x Mount Sinai has reached an agreement with Anthem Blue Cross Blue Shield to r… path:1,HTML,1,BODY,1,DIV,0,DIV selector:body.mshs-home > div.mshs-alert > div.mshs-text snippet:<div class="mshs-text"> type:node] score:0.002329]]
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:0.278905] map[node:map[boundingRect:map[bottom:832 height:268 left:0 right:412 top:564 width:412] lhId:page-21-SECTION nodeLabel:div.container-fluid > div.row > div.full-width > section.finder-form path:1,HTML,1,BODY,16,DIV,0,DIV,0,DIV,1,SECTION selector:div.container-fluid > div.row > div.full-width > section.finder-form snippet:<section class="finder-form"> type:node] score:0.278905]]
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:0.000392] map[node:map[boundingRect:map[bottom:811 height:40 left:357 right:397 top:771 width:40] lhId:page-24-A nodeLabel:Open Mount Sinai Virtual Agent path:1,HTML,1,BODY,43,DIV,3,DIV,0,A selector:body.mshs-home > div#avm_chat_widget_dafef244-f2b4-44f7-92d6-343dcf6ed55d > div.avaamo__icon > a.avm-bot-avatar snippet:<a href="javascript:void(0)" aria-expanded="false" role="button" class="avm-bot-avatar" aria-label="Open Mount Sinai Virtual Agent" tabindex="0"> type:node] score:0.000392]]

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLEst Savings
/mshealth/themes/default/media/fonts//fontawesome-webfont...30 ms
www.mountsinai.org/mshealth/themes/default/media/fonts//fa-brands-400.woff215 ms

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:200.883 source:map[column:15223 line:4 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.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:154.03 source:map[type:text value:[unattributed]]] map[reflowTime:2.17 source:map[column:44388 line:9 type:source-location url:https://s.go-mpulse.net/boomerang/BFBHG-C2X3N-GCWAN-UMPXK-HSX6S urlProvider:network]] map[reflowTime:3.06 source:map[column:15336 line:5 type:source-location url:https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.1.1/owl.carousel.min.js urlProvider:network]] map[reflowTime:140.395 source:map[column:13334 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js urlProvider:network]] map[reflowTime:96.799 source:map[column:18064 line:2 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js urlProvider:network]] map[reflowTime:2.336 source:map[column:19221 line:2 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js urlProvider:network]] map[reflowTime:103.047 source:map[column:19235 line:2 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js urlProvider:network]] map[reflowTime:3.856 source:map[column:18086 line:2 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js urlProvider:network]] map[reflowTime:1.757 source:map[column:30882 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.462 source:map[column:30979 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:9.662 source:map[column:31260 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:7.559 source:map[column:31351 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.212 source:map[column:31632 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.462 source:map[column:31782 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.393 source:map[column:31900 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:1.115 source:map[column:30882 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.429 source:map[column:30979 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:7.794 source:map[column:31260 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:7.134 source:map[column:31351 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.21 source:map[column:31632 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.497 source:map[column:31782 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.379 source:map[column:31900 line:3 type:source-location url:https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js urlProvider:network]] map[reflowTime:0.58 source:map[column:198810 line:6 type:source-location url:https://mountsinai.containers.piwik.pro/a27d2fb5-8255-4f15-94c7-cd1f4ffb0436.js urlProvider:network]] map[reflowTime:55.052 source:map[column:19 line:95 type:source-location url:ds.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
Hallmarks of Liver Cancer figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...504.9 KiB480.2 KiB
AlzheimersProgression figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...451.8 KiB427.1 KiB
city skyline div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-BestHospi...442.1 KiB391.5 KiB
Adams Valve Institute figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...391.2 KiB366.4 KiB
Guttman figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...310.5 KiB285.8 KiB
Ianchulev figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...175.8 KiB151.0 KiB
New York skyscrapers figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...138.8 KiB114.0 KiB
Instagram Icon Instagram Did you know our labs process around 40,000 specimens… div.owl-stage-outer > div.owl-stage > div.owl-item > aside
www.juicer.io/api/media/28295660?s=1c1321758d72a87df1dae04e39c4c435371351cf541.0 KiB91.2 KiB
Find a Location div.full-width > aside.full > picture > img
/files/MSHealth/Assets/Media/final/new-york-city-brooklyn...123.0 KiB72.4 KiB
Doctor using a computer figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...62.4 KiB37.6 KiB
Our Hospitals div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mout-sinai-pedatrics-2...84.2 KiB33.6 KiB
Image of person looking at mobile phone div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-MyMountSinai-Mobil...71.0 KiB20.4 KiB
Our Services div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mount-sinai-senior-3_m...71.0 KiB20.4 KiB
YouTube Icon YouTube In this episode of The Vitals, we explore a question that… div.owl-stage-outer > div.owl-stage > div.owl-item > aside
i.ytimg.com/vi/_PyhoRA7Vas/maxresdefault.jpg167.5 KiB17.5 KiB
Facebook Icon Facebook Did you know our labs process around 40,000 specimens p… div.owl-stage-outer > div.owl-stage > div.owl-item > aside
/api/posts/507360690/images.jpg?external_id=1436163448555...123.6 KiB11.1 KiB
Facebook Icon Facebook In recognition of Medical Laboratory Professionals Week… div.owl-stage-outer > div.owl-stage > div.owl-item > aside
/api/posts/507405530/images.jpg?external_id=1437630158408...112.3 KiB6.8 KiB
Our Services div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mount-sinai-home-servi...54.8 KiB4.1 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:6944.67 label:Time to first byte subpart:timeToFirstByte] map[duration:36.446 label:Resource load delay subpart:resourceLoadDelay] map[duration:150.642 label:Resource load duration subpart:resourceLoadDuration] map[duration:3806.088 label:Element render delay subpart:elementRenderDelay]]
lhId: page-17-IMG
nodeLabel: city skyline
path: 1,HTML,1,BODY,16,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV,0,PICTURE,4,IMG
selector: div.owl-item > div.item > picture > img
snippet: <img src="https://www.mountsinai.org/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-…" srcset="/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-BestHospitals-2026-Carouse…" width="1920" alt="city skyline">

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-17-IMG
nodeLabel: city skyline
path: 1,HTML,1,BODY,16,DIV,0,DIV,0,DIV,0,SECTION,0,DIV,0,DIV,0,DIV,2,DIV,0,DIV,0,PICTURE,4,IMG
selector: div.owl-item > div.item > picture > img
snippet: <img src="https://www.mountsinai.org/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-…" srcset="/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-BestHospitals-2026-Carouse…" width="1920" alt="city skyline">

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

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.

URLTransfer SizeDuration
/answers/dev/dev-iife/answers.css?v=1768312164000build_ms...11.9 KiB908 ms
translate.google.com/translate_a/element.js?cb=googleTranslateElementInit28.3 KiB1.5 s
ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js30.0 KiB1.6 s
/mshealth/themes/default/scripts/dsmGlobal.js?v=176831216...3.7 KiB151 ms
/mshealth/themes/default/scripts/libraries/typeahead.js?v...8.6 KiB
/mshealth/themes/default/styles/override.css?v=1768312164...22.3 KiB753 ms
/mshealth/themes/default/scripts/epic/waittime.js?v=17683...840 B
/mshealth/themes/default/scripts/socialmedia-wall.js?v=17...855 B
/mshealth/themes/default/scripts/libraries/bootstrap-type...3.5 KiB
/mshealth/themes/default/scripts/libraries/jquery-ui.min....9.6 KiB301 ms
/mshealth/themes/default/scripts/libraries/jquery.dotdotd...2.7 KiB151 ms
/mshealth/themes/default/scripts/responsive-table.js?v=17...825 B
/mshealth/themes/default/styles/style.css?v=1768312164000...29.3 KiB753 ms
/answers/v1.4.2/answerstemplates-iife.compiled.min.js?v=1...51.8 KiB1.3 s
www.mountsinai.org/mshealth/themes/default/styles/vendor.css22.2 KiB
/mshealth/themes/default/styles/fonts.css?v=1768312164000...579 B
cdnjs.cloudflare.com/ajax/libs/handlebars.js/4.7.8/handlebars.min.js22.6 KiB1.5 s
cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js9.1 KiB1.1 s
/mshealth/themes/default/styles/owl-carousel.css?v=176831...1.3 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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: 1000 ms
URLTime Spent
mountsinai.org/1000 ms
www.mountsinai.org/0.0 ms

Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 6.4 s
URLTime Spent
www.mountsinai.org/6.5 s

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
div.container-fluid > div.row > div.full-width > section.finder-form div.container-fluid > div.row > div.full-width > section.finder-form
0.279
body.mshs-home body.mshs-home
0.158
Choose a Location Hospitals Urgent Care/Walk-In Select Go View More Locations section.form > div.container > div.row > div.col-xs-12
0.003
x Mount Sinai has reached an agreement with Anthem Blue Cross Blue Shield to r… body.mshs-home > div.mshs-alert > div.mshs-text
0.002
Open Mount Sinai Virtual Agent body.mshs-home > div#avm_chat_widget_dafef244-f2b4-44f7-92d6-343dcf6ed55d > div.avaamo__icon > a.avm-bot-avatar
0.000

Diagnostics

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 5.5 s 912.0 KiB
URLTransfer SizeEst Savings
/answers/dev/dev-iife/answers.js?v=1768312164000build_msh...1.0 MiB858.7 KiB
cdn.plu.mx/extjs/xss.js49.3 KiB20.7 KiB
cdn.plu.mx/extjs/xss.js49.3 KiB20.7 KiB
www.mountsinai.org/gsights/vendor/requirejs/require.js17.3 KiB11.9 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: 450 ms 66.6 KiB
URLTransfer SizeEst Savings
/mshealth/themes/default/styles/style.css?v=1768312164000...29.0 KiB26.4 KiB
/mshealth/themes/default/styles/override.css?v=1768312164...21.9 KiB20.8 KiB
www.mountsinai.org/mshealth/themes/default/styles/vendor.css21.8 KiB19.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 3.5 s 555.6 KiB
URLTransfer SizeEst Savings
/answers/dev/dev-iife/answers.js?v=1768312164000build_msh...1.0 MiB162.6 KiB
/_/translate_http/_/js/k=translate_http.tr.nl.2-2JqXXxIUQ...80.2 KiB62.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-5Z94L8140.1 KiB57.6 KiB
ide.user1st.info/content/ufeInit.prod.js95.0 KiB55.7 KiB
/answers/v1.4.2/answerstemplates-iife.compiled.min.js?v=1...51.2 KiB42.0 KiB
doctor.mountsinai.org/v3/_next/static/chunks/15-180dc80c167df091.js62.7 KiB40.0 KiB
ufe.user1st.info/content/frontend.prod.js41.7 KiB28.3 KiB
mountsinai.containers.piwik.pro/a27d2fb5-8255-4f15-94c7-cd1f4ffb0436.js146.3 KiB22.3 KiB
ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js32.2 KiB21.6 KiB
mountsinai.containers.piwik.pro/a27d2fb5-8255-4f15-94c7-cd1f4ffb0436.js146.3 KiB21.1 KiB
h1.avaamo.com/web_channels/dafef244-f2b4-44f7-92d6-343dcf6ed55d96.4 KiB21.1 KiB
s.go-mpulse.net/boomerang/BFBHG-C2X3N-GCWAN-UMPXK-HSX6S29.6 KiB20.9 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
www.mountsinai.org/4.6 s303 ms30 ms
s.go-mpulse.net/boomerang/BFBHG-C2X3N-GCWAN-UMPXK-HSX6S2.9 s1.8 s65 ms
ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js2.3 s1.1 s13 ms
mountsinai.containers.piwik.pro/a27d2fb5-8255-4f15-94c7-cd1f4ffb0436.js2.2 s1.7 s275 ms
Unattributable1.5 s29 ms0.0 ms
/answers/dev/dev-iife/answers.js?v=1768312164000build_msh...1.2 s189 ms891 ms
web-2-tel.com/org-sdk?identifier=a03de5798cc140ccab3e8fd645259b3f675 ms593 ms63 ms
doctor.mountsinai.org/v3/_next/static/chunks/913-63ec4b3db651c3b1.js585 ms514 ms56 ms
js-agent.newrelic.com/nr-spa-1.313.1.min.js507 ms446 ms16 ms
jsSdk.js452 ms232 ms0.0 ms
doctor.mountsinai.org/v3/_next/static/chunks/533-0efdb033b43b8392.js307 ms287 ms19 ms
/_/translate_http/_/js/k=translate_http.tr.nl.2-2JqXXxIUQ...307 ms214 ms80 ms
doctor.mountsinai.org/fad/autocomplete/lite259 ms107 ms38 ms
ide.user1st.info/content/ufeInit.prod.js251 ms190 ms57 ms
www.mountsinai.org/mshealth/alerts/alert.js?v=1768312164000build_mshealth=2892200 ms68 ms0.7 ms
www.googletagmanager.com/gtm.js?id=GTM-5Z94L8193 ms119 ms72 ms
js-agent.newrelic.com/nr-rum-1.313.1.min.js180 ms150 ms9.7 ms
cdn.penrod.co/scripts/Penrod.HCWT-min.js154 ms150 ms2.2 ms
mountsinai.containers.piwik.pro/ppms.js147 ms118 ms21 ms
ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js134 ms81 ms46 ms
doctor.mountsinai.org/v3/_next/static/chunks/511-e9fc27818609fa81.js126 ms118 ms7.6 ms
ufe.user1st.info/content/frontend.prod.js119 ms89 ms21 ms
/answers/v1.4.2/answerstemplates-iife.compiled.min.js?v=1...98 ms39 ms57 ms
mountsinaiassetsbucket.s3.us-west-1.amazonaws.com/unifiedORGscript.js89 ms83 ms1.2 ms
h1.avaamo.com/web_channels/dafef244-f2b4-44f7-92d6-343dcf6ed55d76 ms18 ms16 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 Evaluation9.3 s
Other3.7 s
Style & Layout3.6 s
Script Parsing & Compilation2.1 s
Rendering1.2 s
Parse HTML & CSS400 ms
Garbage Collection215 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
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.

URLTransfer Size
/answers/dev/dev-iife/answers.js?v=1768312164000build_msh...1.0 MiB
ide.user1st.info/menu/vendor.js801.4 KiB
www.juicer.io/api/media/28295660?s=1c1321758d72a87df1dae04e39c4c435371351cf542.0 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...505.6 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...452.4 KiB
/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-BestHospi...442.7 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...391.8 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...311.1 KiB
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...176.3 KiB
i.ytimg.com/vi/_PyhoRA7Vas/maxresdefault.jpg168.0 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
Image of person looking at mobile phone div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-MyMountSinai-Mobil...
patient talking to doctor div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-FindaDoctor-Mobile...
city skyline div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-BestHospi...
Image of person looking at mobile phone div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-MyMountSinai-Mobil...
patient talking to doctor div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-FindaDoctor-Mobile...
city skyline div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-Newsweek-BestHospi...
Image of person looking at mobile phone div.owl-item > div.item > picture > img
/files/MSHealth/Assets/HS/MSHS-Landing-MyMountSinai-Mobil...
Find a Location div.full-width > aside.full > picture > img
/files/MSHealth/Assets/Media/final/new-york-city-brooklyn...
Our Services div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mount-sinai-senior-3_m...
Our Hospitals div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mout-sinai-pedatrics-2...
Our Services div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mount-sinai-home-servi...
Our Services div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mount-sinai-senior-3_m...
Our Hospitals div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mout-sinai-pedatrics-2...
Our Services div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mount-sinai-home-servi...
Our Services div.listing-img > figure > picture > img
/files/MSHealth/Assets/Media/final/mount-sinai-senior-3_m...
New York skyscrapers figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...
Ianchulev figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
New York skyscrapers figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...
Doctor using a computer figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...
Adams Valve Institute figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
Guttman figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
AlzheimersProgression figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
Hallmarks of Liver Cancer figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
New York skyscrapers figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...
Ianchulev figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
New York skyscrapers figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...
Doctor using a computer figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...
Adams Valve Institute figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
Guttman figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
AlzheimersProgression figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
Hallmarks of Liver Cancer figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2026/Release-Resiz...
New York skyscrapers figure > a > picture > img
/files/MSHealth/Assets/Global/Newsroom/2021/ISMMS-Spotlig...

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

●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 1,154 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 160 ms
●Server Backend Latencies 270 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
○INP breakdown
90

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Get Care Now div.hpcards__mobile__container--row > div.hpcards__mobile__container--content > a.hpcards__mobile__container--a > span.hpcards__mobile__container--content--title
Getting care is easy and convenient. Access virtual care or in-person support. div.hpcards__mobile__container--content > a.hpcards__mobile__container--a > span.hpcards__mobile__container--content--desc > p
Book Online div.hpcards__mobile__container--row > div.hpcards__mobile__container--content > a.hpcards__mobile__container--a > span.hpcards__mobile__container--content--title
Book an Appointment now with a Mount Sinai doctor. div.hpcards__mobile__container--content > a.hpcards__mobile__container--a > span.hpcards__mobile__container--content--desc > p
MyMountSinai® App div.hpcards__mobile__container--row > div.hpcards__mobile__container--content > a.hpcards__mobile__container--a > span.hpcards__mobile__container--content--title
Sign in with your MyChart account and take care of your healthcare needs. div.hpcards__mobile__container--content > a.hpcards__mobile__container--a > span.hpcards__mobile__container--content--desc > p
1-800-MD-SINAI div.hpcards__mobile__container--outter > div > h2.section_title > a
Our Services div.listing > h2 > a > span
Cancer div > ul > li > a
Ear, Nose, and Throat div > ul > li > a
Geriatrics div > ul > li > a
Heart - Cardiology and Cardiovascular Surgery div > ul > li > a
Neurology div > ul > li > a
Neurosurgery div > ul.ul-columns > li > a
Orthopedics div > ul.ul-columns > li > a
Spine div > ul.ul-columns > li > a
Surgery div > ul.ul-columns > li > a
Urology div > ul.ul-columns > li > a
View All of Our Services div.listing-img > div.listing-block > div.listing > a.view-more
View All Press Releases div.infobox-panel > div.detail > div > a
Agree to all div#ppms_cm_popup_responsive_wrapper_id > div#ppms-59442d7f-1516-40e2-bbd7-12ad4b9a353e > div#ppms-3cde0edc-dff1-4c19-939f-15c95f4382d6 > button#ppms_cm_agree-to-all
Decline all div#ppms_cm_popup_responsive_wrapper_id > div#ppms-59442d7f-1516-40e2-bbd7-12ad4b9a353e > div#ppms-3cde0edc-dff1-4c19-939f-15c95f4382d6 > button#ppms_cm_reject-all
Adjust cookie settings div#ppms_cm_popup_main_id > div#ppms_cm_popup_responsive_wrapper_id > div#ppms-b7755843-4632-4d35-aa07-c3748012a683 > button#ppms_cm_content_expander_show_btn
Privacy policy div#ppms_cm_popup_main_id > div#ppms_cm_popup_responsive_wrapper_id > div#ppms-b7755843-4632-4d35-aa07-c3748012a683 > a#popup-link

These are opportunities to improve the legibility of your content.

Names and labels

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
div.full-width > div#fad_container-iframe-outer > div.fad__container--iframe-inner > iframe#myIframe div.full-width > div#fad_container-iframe-outer > div.fad__container--iframe-inner > iframe#myIframe

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.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

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]`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
●Select elements have associated label elements.
●`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
●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.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Identical links have the same purpose.
○`[accesskey]` values are unique
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○Form elements have associated labels
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○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.
77

Best Practices

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/BFBHG-C2X3N-GCWAN-UMPXK-HSX6S line 9, col 11356

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
/api/config.json?key=BFBHG-C2X3N-GCWAN-UMPXK-HSX6S&d=doct...
Failed to load resource: the server responded with a status of 403 ()
/42d2a71be5a70c59e0af49c0aaee97e8/mtsinai_full_config/sta...
Failed to load resource: the server responded with a status of 404 ()
●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
●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
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
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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
keepmountsinai.org/Learn more

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

Crawling and Indexing

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
x body.mshs-home > div.mshs-alert > div.mshs-text > a.mshs-close
Accessibility div.nav > ul > li#u1st-accessibility-footer-link > a
body.mshs-home > div#avm_chat_widget_dafef244-f2b4-44f7-92d6-343dcf6ed55d > div.avm-bot-welcome-notification > a.avm-icon-cross body.mshs-home > div#avm_chat_widget_dafef244-f2b4-44f7-92d6-343dcf6ed55d > div.avm-bot-welcome-notification > a.avm-icon-cross

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
●Document has a meta description
●Page has successful HTTP status code
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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