Skip to content
https://asme.org

Lighthouse Mobile

· 0 checks — Mobile Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

25

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.

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:0.14028600000000002] map[node:map[boundingRect:map[bottom:565 height:220 left:-828 right:2069 top:345 width:2897] lhId:page-6-DIV nodeLabel:The 2026 Hermann Rosen Award: Applications Open! On The Move: Driving The Futu… path:1,HTML,1,BODY,19,DIV,0,MAIN,1,SECTION,1,DIV,0,DIV,0,DIV,0,DIV selector:div#ASME_Slider_Control > div.slider-inner-wrapper > div#ASME_Slides > div.asme-slider-track snippet:<div class="asme-slider-track" style="touch-action: none; user-select: none; -webkit-user-drag: none;"> type:node] score:0.134419] map[node:map[boundingRect:map[bottom:565 height:220 left:-828 right:2069 top:345 width:2897] lhId:page-6-DIV nodeLabel:The 2026 Hermann Rosen Award: Applications Open! On The Move: Driving The Futu… path:1,HTML,1,BODY,19,DIV,0,MAIN,1,SECTION,1,DIV,0,DIV,0,DIV,0,DIV selector:div#ASME_Slider_Control > div.slider-inner-wrapper > div#ASME_Slides > div.asme-slider-track snippet:<div class="asme-slider-track" style="touch-action: none; user-select: none; -webkit-user-drag: none;"> type:node] score:0.003015] map[score:0.002852]]

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:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:0.631 source:map[column:86058 line:22 type:source-location url:https://js.hs-analytics.net/analytics/1776888300000/5268583.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
div.row > div.col-lg-5 > a.featured-resource > img.d-xs-block div.row > div.col-lg-5 > a.featured-resource > img.d-xs-block
/getmedia/234300cd-b21b-4b27-a7eb-5f6ffca677e8/854x480_fe...149.5 KiB108.0 KiB
div.container > div.row > div.col-12 > img div.container > div.row > div.col-12 > img
/getmedia/6ad4a6da-6684-4d2f-bcf0-77471809aa1b/sections-d...116.9 KiB70.7 KiB
div.container > div.row > div.col-md-6 > div.offerings-image div.container > div.row > div.col-md-6 > div.offerings-image
www.asme.org/getmedia/155b8814-fcbb-44f9-89c3-380169d41508/courses-1123.webp94.1 KiB65.8 KiB
div.row > div.col-md-7 > div.membership-image > img.d-sm-none div.row > div.col-md-7 > div.membership-image > img.d-sm-none
/getmedia/729b4f86-4e18-40a7-8cd3-824d2bac8511/becoing-an...70.0 KiB26.4 KiB
div.col-md-6 > a > div.event-card > img.d-xs-block div.col-md-6 > a > div.event-card > img.d-xs-block
www.asme.org/assets/images/event-images/asme-pattern-typeconferences.jpg28.2 KiB15.4 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-5-DIV
nodeLabel: Setting the Standard The American Society of Mechanical Engineers
path: 1,HTML,1,BODY,19,DIV,0,MAIN,1,SECTION,0,DIV
selector: div#contentBody > main#home > section.hero > div#bg_hero_main
snippet: <div class="hero-left" id="bg_hero_main">

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.

URLTransfer SizeDuration
www.asme.org/dist/nav-footer.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f320.1 KiB300 ms
www.asme.org/dist/css/main.min.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f394.3 KiB1.1 s
www.asme.org/dist/nav-footer.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f317.7 KiB150 ms
www.asme.org/dist/common.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f32.0 KiB150 ms
/p.css?s=1&k=uob4hmd&ht=tk&f=137.139.169.171.173.175.5474...172 B753 ms

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
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
/signals/config/1062168734659293?v=2.9.303&r=stable&domai...1200.0 s46.6 KiB
js.hs-analytics.net/analytics/1776888300000/5268583.js300.0 s42.3 KiB
cdn.monsido.com/page-assist/v2/mon-page-assist-loader.js300.0 s33.9 KiB
cdn.mouseflow.com/projects/09b61027-79f6-45b0-a0eb-46666bbdb229.js86400.0 s74.7 KiB
js.hubspot.com/web-interactives-embed.js600.0 s28.5 KiB
js.hs-banner.com/v2/5268583/banner.js300.0 s23.7 KiB
www.asme.org/dist/vendor.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s222.0 KiB
tags.clickagy.com/data.js?rnd=62fe5c0e6ad960.0 ms14.0 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms12.3 KiB
ws-assets.zoominfo.com/formcomplete.js3600.0 s14.4 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
www.asme.org/dist/css/main.min.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s94.3 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
cdn.mouseflow.com/projects/7aa6ff39-8ab3-4ad7-bdc4-c8bb9ea4fc3b.js86400.0 s18.3 KiB
www.asme.org/dist/js/vendor.min.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s65.6 KiB
js.zi-scripts.com/zi-tag.js0.0 ms5.7 KiB
/dist/asme-gahandlers-browser.js?v=9ccdc2b4-171f-474f-8ec...604800.0 s40.8 KiB
www.asme.org/dist/js/scripts.min.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s39.0 KiB
js.hsadspixel.net/pixels.js600.0 s3.9 KiB
app-script.monsido.com/v2/monsido-script.js300.0 s3.7 KiB
www.asme.org/assets/images/event-images/asme-pattern-typewebinars.jpg604800.0 s32.8 KiB
up.pixel.ad/assets/up.js?um=10.0 ms3.1 KiB
www.asme.org/dist/js/jquery.min.js604800.0 s30.2 KiB
www.asme.org/assets/images/event-images/asme-pattern-typeconferences.jpg604800.0 s28.5 KiB
s.adroll.com/i/favicon/nextroll-32x32.png0.0 ms2.3 KiB
www.asme.org/dist/nav-footer.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s20.1 KiB
www.asme.org/dist/nav-footer.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s17.7 KiB
www.asme.org/dist/common.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s16.8 KiB
cdn.monsido.com/page-assist/v2/assets/img/uaccess.svg3600.0 s1.7 KiB
cdn.monsido.com/page-assist/v2/assets/img/default-spinner.png3600.0 s1.4 KiB
js.hs-scripts.com/5268583.js90.0 s1.1 KiB
js.adsrvr.org/universal_pixel.js0.0 ms958 B
s.adroll.com/j/pre/index.js0.0 ms756 B
www.asme.org/assets/images/asme-logo-white.svg604800.0 s7.1 KiB
/collect?v=2&fmt=js&pid=1042129&time=1776888379760&url=ht...0.0 ms693 B
/consent/check/KQSNZBVBLJAM3BX2CPEMML?pv=38669318266.7132...0.0 ms640 B
/wwwasmeorg/media/media-library/pages/product overview/pu...604800.0 s5.7 KiB
/collect?v=2&fmt=js&pid=1042129&time=1776888380912&conver...0.0 ms569 B
www.asme.org/assets/icons/icon-slick-play.png604800.0 s2.1 KiB
/wwwasmeorg/media/media-library/pages/product overview/pu...604800.0 s2.0 KiB
www.asme.org/dist/common.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s2.0 KiB
/wwwasmeorg/media/media-library/pages/product overview/pu...604800.0 s1.7 KiB
www.asme.org/assets/icons/icon-arrow-link-white.svg604800.0 s1.6 KiB
www.asme.org/dist/runtime.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3604800.0 s1.3 KiB
www.asme.org/assets/icons/icon-search-blue.svg604800.0 s1.0 KiB
www.asme.org/assets/icons/icon-check-white.svg604800.0 s716 B
www.asme.org/assets/icons/icon-arrow-link-black.svg604800.0 s683 B
www.asme.org/assets/icons/icon-slick-prev.png604800.0 s529 B
www.asme.org/assets/icons/icon-slick-next.png604800.0 s526 B
www.asme.org/assets/icons/icon-slick-pause.png604800.0 s389 B
/tr/?id=1062168734659293&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms19 B
/p.css?s=1&k=uob4hmd&ht=tk&f=137.139.169.171.173.175.5474...604800.0 s172 B

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
/af/d82519/00000000000000003b9b306a/27/l?primer=7fa3915bd...10 ms
/af/949f99/00000000000000003b9b3068/27/l?primer=7fa3915bd...5.0 ms
/af/705e94/00000000000000003b9b3062/27/l?primer=7fa3915bd...5.0 ms
/af/576d53/00000000000000003b9b3066/27/l?primer=7fa3915bd...5.0 ms
/af/6e816b/00000000000000003b9b3064/27/l?primer=7fa3915bd...5.0 ms

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 1.0 s
URLTime Spent
asme.org/1.0 s
www.asme.org/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
The 2026 Hermann Rosen Award: Applications Open! On The Move: Driving The Futu… div#ASME_Slider_Control > div.slider-inner-wrapper > div#ASME_Slides > div.asme-slider-track
0.134
The 2026 Hermann Rosen Award: Applications Open! On The Move: Driving The Futu… div#ASME_Slider_Control > div.slider-inner-wrapper > div#ASME_Slides > div.asme-slider-track
0.003
0.003

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 460 ms 106.1 KiB
URLTransfer SizeEst Savings
www.asme.org/dist/css/main.min.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f394.0 KiB90.6 KiB
www.asme.org/dist/nav-footer.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f317.4 KiB15.5 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: 760 ms 828.6 KiB
URLTransfer SizeEst Savings
www.asme.org/dist/vendor.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3219.8 KiB177.5 KiB
cdn.mouseflow.com/projects/09b61027-79f6-45b0-a0eb-46666bbdb229.js74.1 KiB74.0 KiB
www.googletagmanager.com/gtag/destination?id=AW-11434129002&cx=c&gtm=4e64k0144.3 KiB68.8 KiB
www.googletagmanager.com/gtag/destination?id=AW-1071119085&cx=c&gtm=4e64k0146.2 KiB68.7 KiB
www.googletagmanager.com/gtag/js?id=G-3DH4W3W6HS&cx=c&gtm=4e64k0178.4 KiB65.9 KiB
www.googletagmanager.com/gtag/destination?id=DC-12463249&cx=c&gtm=4e64k0129.2 KiB62.3 KiB
www.googletagmanager.com/gtag/destination?id=DC-9197313&cx=c&gtm=4e64k0129.2 KiB61.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-P5LRDPG195.1 KiB60.8 KiB
www.asme.org/dist/js/vendor.min.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f365.3 KiB54.8 KiB
www.asme.org/dist/js/scripts.min.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f338.7 KiB33.0 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB32.0 KiB
/dist/ASME-GAHandlers-browser.js?v=9ccdc2b4-171f-474f-8ec...40.5 KiB25.0 KiB
s.adroll.com/j/roundtrip.js28.4 KiB22.4 KiB
cdn.monsido.com/page-assist/v2/mon-page-assist-loader.js33.2 KiB21.9 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
Unattributable1.6 s395 ms0.0 ms
www.asme.org/1.6 s255 ms54 ms
www.googletagmanager.com/gtm.js?id=GTM-P5LRDPG1.3 s1.0 s160 ms
js.hs-analytics.net/analytics/1776888300000/5268583.js951 ms668 ms22 ms
www.asme.org/dist/js/scripts.min.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3845 ms685 ms29 ms
www.googletagmanager.com/gtag/destination?id=AW-1071119085&cx=c&gtm=4e64k0628 ms378 ms76 ms
www.googletagmanager.com/gtag/js?id=G-3DH4W3W6HS&cx=c&gtm=4e64k0595 ms497 ms86 ms
s.adroll.com/j/consent_tcfv2.js531 ms336 ms71 ms
www.asme.org/dist/common.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3409 ms381 ms14 ms
scripts.clarity.ms/0.8.59/clarity.js355 ms308 ms17 ms
www.googletagmanager.com/gtag/destination?id=DC-9197313&cx=c&gtm=4e64k0339 ms268 ms67 ms
cdn.monsido.com/page-assist/v2/mon-page-assist-loader.js334 ms209 ms27 ms
www.googletagmanager.com/gtag/destination?id=AW-11434129002&cx=c&gtm=4e64k0322 ms255 ms63 ms
www.googletagmanager.com/gtag/destination?id=DC-12463249&cx=c&gtm=4e64k0312 ms245 ms63 ms
blob:https://www.asme.org/1912f191-a72a-4fd1-9196-7da2f1da51e7258 ms224 ms1.4 ms
www.asme.org/dist/vendor.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3255 ms114 ms114 ms
/signals/config/1062168734659293?v=2.9.303&r=stable&domai...233 ms197 ms31 ms
connect.facebook.net/en_US/fbevents.js230 ms171 ms56 ms
snap.licdn.com/li.lms-analytics/insight.min.js135 ms93 ms29 ms
www.asme.org/dist/js/jquery.min.js114 ms91 ms15 ms
s.adroll.com/j/roundtrip.js95 ms74 ms14 ms
js.hubspot.com/web-interactives-embed.js95 ms71 ms19 ms
www.asme.org/dist/js/vendor.min.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f386 ms37 ms48 ms
www.asme.org/dist/css/main.min.css?v=9ccdc2b4-171f-474f-8ecb-33171f6815f369 ms0.0 ms0.0 ms
cdn.mouseflow.com/projects/09b61027-79f6-45b0-a0eb-46666bbdb229.js69 ms3.7 ms64 ms
js.hs-banner.com/v2/5268583/banner.js59 ms42 ms11 ms
up.pixel.ad/assets/up.js?um=159 ms55 ms1.5 ms
cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.min.js50 ms30 ms18 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 Evaluation7.5 s
Other2.0 s
Script Parsing & Compilation1.2 s
Style & Layout1.0 s
Rendering220 ms
Parse HTML & CSS213 ms
Garbage Collection207 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 the main frame.Actionable

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: 0.0 ms 27.8 KiB
URLTransfer SizeEst Savings
cdn.mouseflow.com/projects/09b61027-79f6-45b0-a0eb-46666bbdb229.js74.1 KiB27.8 KiB

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
/getmedia/7097c1bf-a2c7-4665-ae97-98199f6e7b92/mission-co...302.2 KiB
/getmedia/0e633528-9d6e-4eb5-adbd-b64de5efe364/mechatroni...232.5 KiB
www.asme.org/dist/vendor.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3222.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-P5LRDPG195.4 KiB
www.googletagmanager.com/gtag/js?id=G-3DH4W3W6HS&cx=c&gtm=4e64k0178.4 KiB
/getmedia/234300cd-b21b-4b27-a7eb-5f6ffca677e8/854x480_fe...150.0 KiB
www.googletagmanager.com/gtag/destination?id=AW-1071119085&cx=c&gtm=4e64k0146.2 KiB
/getmedia/4710b074-749f-498a-a519-9cab7a9733f8/0426-on-th...145.3 KiB
www.googletagmanager.com/gtag/destination?id=AW-11434129002&cx=c&gtm=4e64k0144.3 KiB
www.googletagmanager.com/gtag/destination?id=DC-9197313&cx=c&gtm=4e64k0129.2 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
div.col-md-6 > a > div.event-card > img.d-xs-block div.col-md-6 > a > div.event-card > img.d-xs-block
www.asme.org/assets/images/event-images/asme-pattern-typeconferences.jpg
div.row > div.col-lg-5 > a.featured-resource > img.d-xs-block div.row > div.col-lg-5 > a.featured-resource > img.d-xs-block
/getmedia/234300cd-b21b-4b27-a7eb-5f6ffca677e8/854x480_fe...
div.container > div.row > div.col-12 > img div.container > div.row > div.col-12 > img
/getmedia/6ad4a6da-6684-4d2f-bcf0-77471809aa1b/sections-d...
div.row > div.col-md-7 > div.membership-image > img.d-sm-none div.row > div.col-md-7 > div.membership-image > img.d-sm-none
/getmedia/729b4f86-4e18-40a7-8cd3-824d2bac8511/becoing-an...
div.row > div.col-md-6 > div.offerings-image > img.d-md-none div.row > div.col-md-6 > div.offerings-image > img.d-md-none
www.asme.org/getmedia/155b8814-fcbb-44f9-89c3-380169d41508/courses-1123.webp
div.row > div.col-md-6 > div.offerings-image > img.d-md-none div.row > div.col-md-6 > div.offerings-image > img.d-md-none
/getmedia/d27f69fe-d0c5-4f7c-8d6d-7730a8bdf2d4/publicatio...
PageAssist Personalization Options span.mon-logo-image-wrapper-content > span.mon-logo-image-wrapper > span.mon-logo-image-bg > img.mon-logo-image
cdn.monsido.com/page-assist/v2/assets/img/uaccess.svg
div.row > div.col-6 > div.membership-icon-container > img.icon div.row > div.col-6 > div.membership-icon-container > img.icon
/getmedia/c5afa62a-0635-4ac2-8480-a3e089a7f01e/membership...
div.row > div.col-6 > div.membership-icon-container > img.icon div.row > div.col-6 > div.membership-icon-container > img.icon
/getmedia/3946c3dc-8bce-4355-9e6e-405d6fa4da3e/membership...
div.adroll_consent_notice > div.adroll_consent_notice_title > div.adroll_consent_notice_title_text > img.adroll_consent_first_page_logo div.adroll_consent_notice > div.adroll_consent_notice_title > div.adroll_consent_notice_title_text > img.adroll_consent_first_page_logo
s.adroll.com/i/favicon/nextroll-32x32.png
div.row > div.col-6 > div.membership-icon-container > img.icon div.row > div.col-6 > div.membership-icon-container > img.icon
/getmedia/9f95c5fb-4e61-41e6-b025-a4ce6e63dd90/membership...
div.row > div.col-6 > div.membership-icon-container > img.icon div.row > div.col-6 > div.membership-icon-container > img.icon
/getmedia/a54e30e0-5205-47e7-bd75-76cc9df83305/membership...

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

●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●User Timing marks and measures 7 user timings
●Avoid long main-thread tasks 20 long tasks found
●Network Requests
●Network Round Trip Times 100 ms
●Server Backend Latencies 1,980 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 180 ms
○INP breakdown
○Avoid non-composited animations
86

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
Standards div.container > div.row > div.col-lg-3 > h2
About ASME div.container > div.row > div.popular-tags > a.btn
Business and Career Support div.container > div.row > div.popular-tags > a.btn
Conferences and Events div.container > div.row > div.popular-tags > a.btn
Engineering div.container > div.row > div.popular-tags > a.btn
Membership div.container > div.row > div.popular-tags > a.btn
Standards Development div.container > div.row > div.popular-tags > a.btn
ASME Information div.container > div.row > div.popular-tags > a.btn
Publications div.container > div.row > div.popular-tags > a.btn
Events main#home > section.events > div.container > h2

These are opportunities to improve the legibility of your content.

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
Process Piping div.col-lg-9 > div.standard-cards > a.card-highlight > h5
Locate ASME Certified Companies div.col-lg-4 > a.certificationCard > div.contentContainer > h5
Seek and Use Feedback for Successful Engineering Career div.col-lg-5 > a.featured-resource > div.featured-resource-item > h5
Verification, Validation, and Uncertainty Quantification Symposium 2026 - VVUQ … a > div.event-card > div.event-info > h5
Quick Job Search div.container > div.row > div.col-md-3 > h4

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Menu div#react_0HNKVAV24I82S > div.index-module__siteheader--AsLaV > div.index-module__navbar--nGYMQ > li.NavMenuButton-module__nav-button--luGwB

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

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
Show Slide 0 div#pagination-dots > ul.asme-dots > li#asme_dot_0 > button#asme_dot_button_0
Show Slide 1 div#pagination-dots > ul.asme-dots > li#asme_dot_1 > button#asme_dot_button_1
Show Slide 2 div#pagination-dots > ul.asme-dots > li#asme_dot_2 > button#asme_dot_button_2
Show Slide 3 div#pagination-dots > ul.asme-dots > li#asme_dot_3 > button#asme_dot_button_3
Show Slide 4 div#pagination-dots > ul.asme-dots > li#asme_dot_4 > button#asme_dot_button_4
Show Slide 5 div#pagination-dots > ul.asme-dots > li#asme_dot_5 > button#asme_dot_button_5
Show Slide 6 div#pagination-dots > ul.asme-dots > li#asme_dot_6 > button#asme_dot_button_6
Professional div.d-flex > div.division-description > p.title > a
Student div.d-flex > div.division-description > p.title > a
Technical div.d-flex > div.division-description > p.title > a

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>`
●`[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.
●ARIA attributes are used as specified for the element's role
●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>`).
●No element has a `[tabindex]` value greater than 0
●Document has a main landmark.
●ARIA IDs are unique
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○Deprecated ARIA roles were not used
○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
○`[aria-hidden="true"]` elements do not contain focusable descendents
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○`[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
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○No form fields have multiple labels
○`<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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
69

Best Practices

User Experience

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLAspect Ratio (Displayed)Aspect Ratio (Actual)
Student div.d-flex > div.division-thumb > a > img.img-circle
/getmedia/617fed3b-c428-4acc-887e-e564b7033d2f/StudentThu...80 x 80 (1.00)80 x 69 (1.16)
Technical div.d-flex > div.division-thumb > a > img.img-circle
/getmedia/eaef9012-a82f-49e2-874b-dd8facf57ca4/TechnicalT...80 x 80 (1.00)80 x 69 (1.16)
Professional div.d-flex > div.division-thumb > a > img.img-circle
/getmedia/37b1a578-4309-4318-b848-0e0406519e64/Profession...80 x 80 (1.00)79 x 68 (1.16)

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
div.adroll_consent_notice > div.adroll_consent_notice_title > div.adroll_consent_notice_title_text > img.adroll_consent_first_page_logo div.adroll_consent_notice > div.adroll_consent_notice_title > div.adroll_consent_notice_title_text > img.adroll_consent_first_page_logo
s.adroll.com/i/favicon/nextroll-32x32.png22 x 2232 x 3233 x 33

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
AttributionReporting
up.pixel.ad/assets/up.js?um=1
Unload event listeners are deprecated and will be removed.
blob:https://www.asme.org/1912f191-a72a-4fd1-9196-7da2f1da51e7

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
cdn.cookielaw.org/consent/dbd122b1-0f2e-4f10-8529-93dba1cc9ab4.js
Failed to load resource: the server responded with a status of 404 ()

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
www.asme.org/dist/vendor.js?v=9ccdc2b4-171f-474f-8ecb-33171f6815f3
js.hsadspixel.net/pixels.js/adsscriptloaderstatic/static-1.3043/bundles/pixels-relea...
●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
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
○Redirects HTTP traffic to HTTPS
85

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
/Topics-Resources/Society-News/Letters-Official-Statement...Read More
sections.asme.org/community-impact-monthLearn More
/About-ASME/media-inquiries/Press-Releases/ASME-Announces...Learn More
www.asme.org/Codes-Standards/VVUQ-StandardsLearn More
www.asme.org/About-ASME/CEO-CornerLearn More
www.asme.org/membership/why-become-a-memberLearn More
www.asme.org/membership/why-become-a-memberLearn More
www.asme.org/get-involved/groups-sections-and-technical-divisionsLearn 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
Search div.NavTop-module__navbar-top--tg4lt > ul > li#searchToggleButton > a
div.row > div.hero-content > div.search-box > a.btn div.row > div.hero-content > div.search-box > a.btn
Continue Browsing div.lity-custom-block > div.modal-container > div.buttons > a.btn
SETTINGS div.adroll_consent_notice > div.adroll_consent_notice_title > div.adroll_consent_notice_title_settings > a#adroll_consent_settings
20 advertising partners div.adroll_consent_notice_text > span#navigate > div.adroll_consent_box > a.adroll_consent_banner_partners_link_class
advertising partners div.adroll_consent_notice_text > span#navigate > div.adroll_consent_box > a.adroll_consent_banner_partners_link_class
advertising partners div.adroll_consent_notice_text > span#navigate > div.adroll_consent_box > a.adroll_consent_banner_partners_link_class
DECLINE ALL div#adroll_consent_banner_container > div#adroll_consent_banner > div.adroll_consent_button_bar > a#adroll_consent_reject
ALLOW ALL div#adroll_consent_banner_container > div#adroll_consent_banner > div.adroll_consent_button_bar > a#adroll_consent_accept
Manage consent preferences body.monsido-toolbar-body-container > div#adroll_consent_container > div#nextroll_consent_persistent_icon > a#adroll_consent_persistent_icon_href

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`

Send Feedback