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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.

33

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
/cmstatic/webclient/band-web/res/20260306100749/images/sp...399886.0 s179.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266385.0 s71.2 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266385.0 s71.1 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266386.0 s44.5 KiB
/s/login/getKey?_t=1776889048103&callback=authCallBack_17...0.0 ms2.6 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s25.4 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s24.2 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183921.0 s21.4 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s21.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s20.2 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s19.7 KiB
/cmstatic/webclient/band-web/res/20260306100749/css/bandI...1243272.0 s19.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s16.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1219985.0 s16.2 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s15.9 KiB
/cmstatic/webclient/band-web/script/20260407163312/730ba7...1329693.0 s14.4 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266386.0 s13.4 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1500888.0 s12.5 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183920.0 s12.4 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1098965.0 s11.7 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266385.0 s9.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1183921.0 s7.5 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266387.0 s7.4 KiB
/cmstatic/webclient/band-web/script/20260407163312/c59d21...1329661.0 s6.9 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266386.0 s5.8 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266386.0 s5.4 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266386.0 s5.4 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266385.0 s5.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266386.0 s5.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1219985.0 s5.3 KiB
/cmstatic/webclient/band-web/script/20260407163312/e14dec...1329660.0 s5.3 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266387.0 s5.1 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266388.0 s5.1 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1219985.0 s5.1 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266385.0 s5.0 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266386.0 s4.8 KiB
/cmstatic/webclient/band-web/res/20260306100749/images/in...1266385.0 s623 B
/cmstatic/webclient/band-web/script/20260407163312/boot.b...1329642.0 s0 B
/cmstatic/webclient/band-web/script/20260407163312/a5c942...1329666.0 s0 B
/cmstatic/webclient/band-web/script/20260407163312/c34860...1329662.0 s0 B
/cmstatic/auth/js/a0eaa49907bbf5490733543ea80f439a82f6adc...0.0 ms0 B
/cmstatic/auth/js/a0eaa49907bbf5490733543ea80f439a82f6adc...0.0 ms0 B
/cmstatic/auth/js/a0eaa49907bbf5490733543ea80f439a82f6adc...0.0 ms0 B
/cmstatic/auth/js/a0eaa49907bbf5490733543ea80f439a82f6adc...0.0 ms0 B
/cmstatic/webclient/band-web/script/20260407163312/20a1c1...1329667.0 s0 B
/cmstatic/webclient/band-web/script/20260407163312/e6607c...1329645.0 s0 B
/cmstatic/webclient/band-web/script/20260407163312/b81841...1329654.0 s0 B
/cmstatic/webclient/band-web/script/20260407163312/630776...1329655.0 s0 B
/cmstatic/webclient/band-web/script/20260407163312/13a4e4...1329671.0 s0 B

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.

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: Build the Team You Envision With One App Your team’s communication in one hub …
path: 1,HTML,1,BODY,0,DIV,1,MAIN,0,DIV,0,DIV
selector: div.introWrap > main._body > div > div.introAppDownArea
snippet: <div class="introAppDownArea">

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

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
/cmstatic/webclient/band-web/res/20260306100749/css/bandI...19.3 KiB916 ms
/cmstatic/webclient/band-web/script/20260407163312/boot.b...0 B

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
Girls on the run div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...25.2 KiB23.1 KiB
CIF div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...24.0 KiB21.9 KiB
GAXC Festival div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...21.2 KiB19.1 KiB
NFHS div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...21.1 KiB19.0 KiB
div.introSnapArea > div.oneAppArea > p > img div.introSnapArea > div.oneAppArea > p > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...70.8 KiB18.3 KiB
USA Wrestling div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...20.0 KiB17.9 KiB
weCoach Vertical div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...19.5 KiB17.5 KiB
Varsity div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...16.0 KiB14.0 KiB
NIN div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...15.7 KiB13.7 KiB
a.useBandILink > div.profileBox > span.profile > img a.useBandILink > div.profileBox > span.profile > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...13.2 KiB11.9 KiB
a.useBandILink > div.profileBox > span.profile > img a.useBandILink > div.profileBox > span.profile > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...11.5 KiB10.2 KiB
NON div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...12.2 KiB10.1 KiB
a.useBandILink > div.profileBox > span.profile > img a.useBandILink > div.profileBox > span.profile > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...9.1 KiB7.9 KiB
a.useBandILink > div.profileBox > span.profile > img a.useBandILink > div.profileBox > span.profile > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...7.2 KiB6.0 KiB
NSAF div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...7.3 KiB5.7 KiB
a.useBandILink > div.profileBox > span.profile > img a.useBandILink > div.profileBox > span.profile > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...5.6 KiB4.3 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 11.6 s
URLTime Spent
band.us/1.6 s
www.band.us/10.1 s
www.band.us/home0.0 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: 520 ms
URLTime Spent
www.band.us/home620 ms

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.

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: 150 ms 15.3 KiB
URLTransfer SizeEst Savings
/cmstatic/webclient/band-web/res/20260306100749/css/bandI...19.1 KiB15.3 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: 5.7 s 1.3 MiB
URLTransfer SizeEst Savings
/cmstatic/webclient/band-web/script/20260407163312/boot.b...821.5 KiB503.8 KiB
/cmstatic/webclient/band-web/script/20260407163312/boot.b...821.5 KiB503.1 KiB
/cmstatic/webclient/band-web/script/20260407163312/311560...327.8 KiB201.6 KiB
ssl.pstatic.net/cmstatic/webclient/static/band-web/lottie-web-5.12.2.min.js74.8 KiB45.4 KiB
/cmstatic/webclient/band-web/script/20260407163312/c34860...35.2 KiB31.4 KiB
/cmstatic/webclient/band-web/script/20260407163312/c34860...35.2 KiB20.6 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
/cmstatic/webclient/band-web/script/20260407163312/boot.b...1.5 s504 ms861 ms
/cmstatic/webclient/band-web/script/20260407163312/a5c942...634 ms550 ms79 ms
/cmstatic/webclient/band-web/script/20260407163312/311560...548 ms377 ms169 ms
/cmstatic/webclient/band-web/script/20260407163312/730ba7...426 ms170 ms7.2 ms
/cmstatic/webclient/band-web/script/20260407163312/13a4e4...386 ms381 ms0.8 ms
Unattributable311 ms16 ms0.0 ms
www.band.us/home268 ms11 ms2.9 ms
ssl.pstatic.net/cmstatic/webclient/static/band-web/lottie-web-5.12.2.min.js152 ms109 ms27 ms
/s/login/getKey?_t=1776889046793&callback=authCallBack_17...115 ms113 ms0.5 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation2.3 s
Script Parsing & Compilation1.2 s
Other600 ms
Style & Layout256 ms
Rendering75 ms
Parse HTML & CSS62 ms
Garbage Collection22 ms

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
Varsity div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
NFHS div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
USA Wrestling div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
Girls on the run div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
weCoach Vertical div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
NSAF div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
NON div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
NIN div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
GAXC Festival div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...
CIF div.partnersArea > div.currentPartner > span.partnerItem > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...

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

●Layout shift culprits
●Optimize DOM size
●Font display
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 2,288 KiB
●User Timing marks and measures 2 user timings
●Avoid long main-thread tasks 12 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 280 ms
●Server Backend Latencies 600 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
83

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
THE NO. 1 APP FOR TEAM COMMUNICATION div > div.introSnapArea > div.teamCommArea > h2.title
13 div.useBandArea > div.navi > div.paging > span._totalPage
Free div.appDownloadArea > div.explanationSection > strong.subTitle > em.pointColor
BAND © 2026 div._footer > div.footer_inner > div.floor2nd > span.copyright
English 한국어 日本語 Español 繁體中文 Bahasa Indonesia div.footer_inner > div.floor2nd > div.uSelect > select.lang_list

These are opportunities to improve the legibility of your content.

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.

Names and labels

Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the `select` element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
English 한국어 日本語 Español 繁體中文 Bahasa Indonesia div.footer_inner > div.floor2nd > div.uSelect > select.lang_list

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.

○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
●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 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
●Touch targets have sufficient size and spacing.
●`[lang]` attributes have a valid value
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
○`[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
○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
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○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.
○`<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.
○Identical links have the same purpose.
○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.
96

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)
div.introSnapArea > div.oneAppArea > p > img div.introSnapArea > div.oneAppArea > p > img
/cmstatic/webclient/band-web/res/20260306100749/images/in...307 x 420 (0.73)619 x 860 (0.72)
●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
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●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 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
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
about.band.us/featuresLearn More

Canonical links suggest which URL to show in search results. Learn more about canonical links.

Why this matters

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

Source: MDN Permissions-Policy

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

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`

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