Lighthouse Mobile

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

SCORE

GRADE

FIX

REVIEW

PASS

INFO

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
confex.com/stylesheets/confex.css	0.0 ms	142.2 KiB
confex.com/images/confex-mevents.png	0.0 ms	129.1 KiB
confex.com/images/CSTEPanel.jpg	0.0 ms	102.6 KiB
confex.com/images/APSRegDesk2.jpg	0.0 ms	101.9 KiB
confex.com/images/bkg-loop-right.png	0.0 ms	45.3 KiB
confex.com/js/highlight.js	0.0 ms	7.7 KiB
confex.com/images/m-events-logo-2024-white.png	0.0 ms	2.6 KiB
confex.com/images/SVG/Apps.svg	0.0 ms	2.4 KiB
confex.com/images/SVG/Support.svg	0.0 ms	2.2 KiB
confex.com/images/SVG/Schedule.svg	0.0 ms	2.0 KiB
confex.com/images/SVG/Output.svg	0.0 ms	2.0 KiB
confex.com/images/SVG/CE.svg	0.0 ms	2.0 KiB
confex.com/images/SVG/Mail.svg	0.0 ms	1.7 KiB
confex.com/images/SVG/Events.svg	0.0 ms	1.7 KiB
confex.com/images/SVG/Exhibits.svg	0.0 ms	1.7 KiB
confex.com/images/SVG/Collect.svg	0.0 ms	1.6 KiB
confex.com/images/SVG/Registration.svg	0.0 ms	1.6 KiB
confex.com/images/SVG/Search.svg	0.0 ms	1.3 KiB
confex.com/images/SVG/Leaf.svg	0.0 ms	1.1 KiB
secure.keep0push.com/js/183673.js	86400.0 s	321 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:0.172139] map[node:map[boundingRect:map[bottom:4454 height:4264 left:0 right:412 top:190 width:412] lhId:page-4-DIV nodeLabel:Highly Configurable Your meeting, your way. Personalized Support Reliable su… path:0,HTML,1,BODY,26,DIV,1,DIV selector:body.home > div.topwrapper > div.mainwrapper snippet:<div class="mainwrapper"> type:node] score:0.133011 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/raleway/v37/1Ptug8zYS_SKggPNyC0IT4ttDfA.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:713 height:403 left:30 right:382 top:311 width:351] lhId:page-1-DIV nodeLabel:In 2023, Confex became part of m|events, Europe's #1 technology provider for me… path:0,HTML,1,BODY,0,DIV,0,DIV,0,DIV,1,DIV selector:div#overlay > div#modal > div.modal-content > div.modal-noticeText snippet:<div class="modal-noticeText"> type:node] score:0.029407 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:135 height:25 left:229 right:382 top:110 width:153] lhId:page-8-IMG nodeLabel:div#modal > div.modal-content > div.modal-header > img path:0,HTML,1,BODY,0,DIV,0,DIV,0,DIV,0,DIV,1,IMG selector:div#modal > div.modal-content > div.modal-header > img snippet:<img src="../images/m-events-logo-2024-white.png"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:4086 height:4086 left:0 right:412 top:0 width:412] lhId:page-3-BODY nodeLabel:body.home path:0,HTML,1,BODY selector:body.home snippet:<body class="home root index"> type:node] score:0.009721]]

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.

URL	Est Savings
fonts.gstatic.com/s/raleway/v37/1Ptug8zYS_SKggPNyC0IT4ttDfA.woff2	45 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-DIV

nodeLabel: As of July 1st, Confex will now be serving you as m|events In 2023, Confex bec…

path: 0,HTML,1,BODY,0,DIV,0,DIV,0,DIV

selector: body.home > div#overlay > div#modal > div.modal-content

snippet: <div class="modal-content">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
confex.com/	http/1.1
confex.com/images/m-events-logo-2024-white.png	http/1.1
confex.com/stylesheets/confex.css	http/1.1
confex.com/js/highlight.js	http/1.1
confex.com/images/confex-mevents.png	http/1.1
confex.com/images/SVG/Leaf.svg	http/1.1
confex.com/images/bkg-loop-right.png	http/1.1
confex.com/images/SVG/Search.svg	http/1.1
confex.com/images/APSRegDesk2.jpg	http/1.1
confex.com/images/SVG/Support.svg	http/1.1
confex.com/images/SVG/Collect.svg	http/1.1
confex.com/images/SVG/Schedule.svg	http/1.1
confex.com/images/SVG/Output.svg	http/1.1
confex.com/images/SVG/Apps.svg	http/1.1
confex.com/images/CSTEPanel.jpg	http/1.1
confex.com/images/SVG/Registration.svg	http/1.1
confex.com/images/SVG/CE.svg	http/1.1
confex.com/images/SVG/Exhibits.svg	http/1.1
confex.com/images/SVG/Events.svg	http/1.1
confex.com/images/SVG/Mail.svg	http/1.1
confex.com/favicon.ico	http/1.1

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

value: no origins were preconnected

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

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Grow with Confex (R) and m\|events `section.content > div#grow > a > img`	confex.com/images/confex-mevents.png	128.8 KiB	128.5 KiB
As of July 1st, Confex will now be serving you as m\|events In 2023, Confex bec… `body.home > div#overlay > div#modal > div.modal-content`	confex.com/images/bkg-loop-right.png	45.0 KiB	9.4 KiB

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

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.

Element	Layout shift score
Highly Configurable Your meeting, your way. Personalized Support Reliable su… `body.home > div.topwrapper > div.mainwrapper`	0.133
In 2023, Confex became part of m\|events, Europe's #1 technology provider for me… `div#overlay > div#modal > div.modal-content > div.modal-noticeText`	0.029
body.home `body.home`	0.010

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

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: 990 ms 137.5 KiB

URL	Transfer Size	Est Savings
confex.com/stylesheets/confex.css	141.9 KiB	137.5 KiB

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 4.6 KiB

URL	Transfer Size	Est Savings
confex.com/js/highlight.js	7.4 KiB	4.6 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
Grow with Confex (R) and m\|events `section.content > div#grow > a > img`	confex.com/images/confex-mevents.png
leaf icon `div#able > a > h1 > img`	confex.com/images/SVG/Leaf.svg
div#modal > div.modal-content > div.modal-header > img `div#modal > div.modal-content > div.modal-header > img`	confex.com/images/m-events-logo-2024-white.png
div#modal > div.modal-content > div.modal-header > img `div#modal > div.modal-content > div.modal-header > img`	confex.com/images/m-events-logo-2024-white.png

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

●Max Potential First Input Delay 90 ms

●Document request latency

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Render blocking requests

●Optimize viewport for mobile

●Minify CSS

●Reduce unused JavaScript

●Avoids enormous network payloads Total size was 646 KiB

●JavaScript execution time 0.0 s

●Minimizes main-thread work 0.7 s

●Avoid long main-thread tasks 2 long tasks found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 120 ms

●Server Backend Latencies 30 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 120 ms

○INP breakdown

○User Timing marks and measures

○Avoid non-composited animations

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

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
Continue to m\|events `div#modal > div.modal-content > p.right > a.button`
Continue to m\|events `div#modal > div.modal-content > p.right > a.button`
Read More! `header > section.special > h3 > a.button`
Your meeting, your way. `ul > li > a > p`
Reliable support onsite, online, and behind the scenes. `ul > li > a > p`
Our clients are front and center. `ul > li > a > p`
Access, Confidentiality & Trust. `ul > li > a > p`
Speaker Ready Room `ul > li > a > p`
Digital & Print Publishing `ul > li > a > p`
RELIABLE & SUSTAINABLE `section.content > div#able > a > h1`
Helping to manage over 200,000 presenters each year. `div#able > a > ul > li`
Distributing and archiving over 10,000 recorded presentations every year. `div#able > a > ul > li`
Trusted by leading scientific and medical societies. `div#able > a > ul > li`

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#modal > div.modal-content > div.modal-header > img `div#modal > div.modal-content > div.modal-header > img`
div#modal > div.modal-content > div.modal-header > img `div#modal > div.modal-content > div.modal-header > img`

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section.social > ul > li > a `section.social > ul > li > a`
section.social > ul > li > a `section.social > ul > li > a`

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
body.home > meta `body.home > 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-hidden="true"]` is not present on the document `<body>`

●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.

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Identical links have the same purpose.

○`[accesskey]` values are unique

○`[aria-*]` attributes match their roles

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA attributes are used as specified for the element's role

○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

○Elements use only permitted ARIA attributes

○`[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

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

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

○Buttons have an accessible name

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○Form elements have associated labels

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○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.

Best Practices

Browser Compatibility

Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A character encoding declaration is required. It can be done with a `<meta>` tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn more about declaring the character encoding.

Why this matters

Performance issues directly impact user engagement and conversion rates.

●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

●No browser errors logged to the console

●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

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

SEO

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

Content Best Practices

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#modal > div.modal-content > div.modal-header > img `div#modal > div.modal-content > div.modal-header > img`
div#modal > div.modal-content > div.modal-header > img `div#modal > div.modal-content > div.modal-header > img`

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

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●Document has a valid `hreflang`

○robots.txt is valid

○Document has a valid `rel=canonical`