Skip to content
https://calm.com

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.

17

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
www.calm.com/api/12Xk43jk/init.js600.0 s104.5 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
/signals/config/1716780165218419?v=2.9.303&r=stable&domai...1200.0 s46.8 KiB
/analytics.js/v1/C16PWBq5gYGXHUBqydqThTjx9MdPyo48/analyti...120.0 s30.0 KiB
www.calm.com/_n/images/homepage/blue-wave-bg.webp86400.0 s68.7 KiB
truemed-public.s3.us-west-1.amazonaws.com/truemed-ads/prequal-widget.min.js0.0 ms22.2 KiB
utt.impactcdn.com/A4013006-41a1-4ccd-93e9-9fde9b93a8211.js900.0 s20.5 KiB
websdk.appsflyer.com/?st=pba&af_id=35f7769a-49c6-458f-aa26-4cb9e19ccac90.0 ms15.8 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
www.calm.com/_n/fonts/Figtree-Bold.woff286400.0 s23.5 KiB
www.calm.com/_n/fonts/Figtree-Medium.woff286400.0 s23.4 KiB
www.calm.com/_n/fonts/Figtree-Regular.woff286400.0 s23.3 KiB
cdn.mgln.ai/pixel.min.js14400.0 s3.0 KiB
/tr/?id=1716780165218419&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms16 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:0.41353100000000004] map[node:map[boundingRect:map[bottom:1698 height:875 left:0 right:412 top:823 width:412] lhId:page-5-SECTION nodeLabel:We're here to help you feel better. Stress less. Get in-the-moment relief for … path:1,HTML,1,BODY,6,MAIN,1,SECTION selector:body > main#main-content > section.styles__Wrapper-sc-d026f2c8-0 snippet:<section class="styles__Wrapper-sc-d026f2c8-0 jacwHv"> type:node] score:0.413154] map[node:map[boundingRect:map[bottom:895 height:72 left:20 right:392 top:823 width:372] lhId:page-4-H2 nodeLabel:We're here to help you feel better. path:1,HTML,1,BODY,6,MAIN,1,SECTION,0,H2 selector:body > main#main-content > section.styles__Wrapper-sc-d026f2c8-0 > h2.styles__StyledText-sc-a4b5006e-0 snippet:<h2 class="styles__StyledText-sc-a4b5006e-0 exMTjZ styles__Heading-sc-d026f2c8-1 itRT…"> type:node] score:0.000377 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://www.calm.com/_n/fonts/Figtree-Bold.woff2]] map[cause:Web font extra:map[type:url value:https://www.calm.com/_n/fonts/Figtree-Medium.woff2]] map[cause:Web font extra:map[type:url value:https://www.calm.com/_n/fonts/Figtree-Regular.woff2]]] type:subitems]]]

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.

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
main#main-content > section.styles__Wrapper-sc-3e6b267a-0 > div.styles__JasperLake-sc-3e6b267a-2 > img main#main-content > section.styles__Wrapper-sc-3e6b267a-0 > div.styles__JasperLake-sc-3e6b267a-2 > img
www.calm.com/_next/static/media/jasper-lake.7b49d2ef.webp256.9 KiB94.4 KiB
body > main#main-content > div.styles__Banner-sc-d026f2c8-9 > img body > main#main-content > div.styles__Banner-sc-d026f2c8-9 > img
www.calm.com/_next/static/media/content-tile-collage.ac12f6e5.webp249.2 KiB77.0 KiB
Thumbnail for Mindfulness for beginners: 6 techniques for mindful living div.styles__SlideInner-sc-d6f7c755-2 > article.styles__Post-sc-c18ade71-3 > a.styles__PostLink-sc-c18ade71-8 > img.styles__Thumbnail-sc-c18ade71-4
/content/v1/656f4e4dababbd7c042c4946/1776471218211-W5L8S2...94.3 KiB25.3 KiB
Thumbnail for How to deal with toxic family members: 7 tips to help you cope div.styles__SlideInner-sc-d6f7c755-2 > article.styles__Post-sc-c18ade71-3 > a.styles__PostLink-sc-c18ade71-8 > img.styles__Thumbnail-sc-c18ade71-4
/content/v1/656f4e4dababbd7c042c4946/1718401923928-GEIQ30...61.7 KiB16.3 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-0-IMG
nodeLabel: main#main-content > section.styles__Wrapper-sc-3e6b267a-0 > div.styles__JasperLake-sc-3e6b267a-2 > img
path: 1,HTML,1,BODY,6,MAIN,0,SECTION,0,DIV,0,IMG
selector: main#main-content > section.styles__Wrapper-sc-3e6b267a-0 > div.styles__JasperLake-sc-3e6b267a-2 > img
snippet: <img alt="" loading="eager" decoding="async" data-nimg="fill" src="/_next/static/media/jasper-lake.7b49d2ef.webp" style="position: absolute; height: 100%; width: 100%; inset: 0px;">

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

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: 1.1 s
URLTime Spent
calm.com/1.1 s
www.calm.com/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: 602 ms
URLTime Spent
www.calm.com/702 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
We're here to help you feel better. Stress less. Get in-the-moment relief for … body > main#main-content > section.styles__Wrapper-sc-d026f2c8-0
0.413
We're here to help you feel better. body > main#main-content > section.styles__Wrapper-sc-d026f2c8-0 > h2.styles__StyledText-sc-a4b5006e-0
0.000

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.

Diagnostics

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: 900 ms 463.7 KiB
URLTransfer SizeEst Savings
www.calm.com/_next/static/chunks/6bcc3924f73ddcb7.js178.1 KiB69.9 KiB
www.googletagmanager.com/gtag/js?id=G-N4F47DEEC3&cx=c&_slc=1166.0 KiB68.8 KiB
www.calm.com/_next/static/chunks/9f12a3de7607ad3c.js131.1 KiB64.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-55DFT24168.6 KiB62.9 KiB
www.googletagmanager.com/gtag/js?id=AW-782291623&cx=c&gtm=4e64h1140.1 KiB51.1 KiB
www.calm.com/api/12Xk43jk/init.js104.0 KiB40.3 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB35.5 KiB
www.calm.com/_next/static/chunks/86d1d098e04915b6.js49.5 KiB26.9 KiB
www.calm.com/_next/static/chunks/9a0d6000a621abbf.js65.7 KiB23.6 KiB
/signals/config/1716780165218419?v=2.9.303&r=stable&domai...46.7 KiB20.1 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.calm.com/_next/static/chunks/9a0d6000a621abbf.js3.0 s2.2 s32 ms
www.calm.com/1.3 s22 ms82 ms
Unattributable835 ms83 ms0.0 ms
www.calm.com/api/12Xk43jk/init.js556 ms519 ms25 ms
www.googletagmanager.com/gtm.js?id=GTM-55DFT24549 ms452 ms60 ms
www.googletagmanager.com/gtag/js?id=AW-782291623&cx=c&gtm=4e64h1388 ms336 ms40 ms
www.googletagmanager.com/gtag/js?id=G-N4F47DEEC3&cx=c&_slc=1363 ms307 ms50 ms
www.calm.com/_next/static/chunks/86d1d098e04915b6.js344 ms200 ms13 ms
www.calm.com/_next/static/chunks/47af3fbf38360dab.js281 ms252 ms15 ms
connect.facebook.net/en_US/fbevents.js171 ms134 ms34 ms
truemed-public.s3.us-west-1.amazonaws.com/truemed-ads/prequal-widget.min.js152 ms135 ms4.6 ms
/signals/config/1716780165218419?v=2.9.303&r=stable&domai...125 ms105 ms19 ms
utt.impactcdn.com/A4013006-41a1-4ccd-93e9-9fde9b93a8211.js95 ms89 ms4.2 ms
/analytics-next/bundles/schemaFilter.bundle.1b218d13fed02...79 ms76 ms0.6 ms
www.google-analytics.com/analytics.js74 ms66 ms4.6 ms
www.calm.com/_next/static/chunks/6bcc3924f73ddcb7.js65 ms3.3 ms59 ms
/analytics.js/v1/C16PWBq5gYGXHUBqydqThTjx9MdPyo48/analyti...59 ms43 ms12 ms
websdk.appsflyer.com/?st=pba&af_id=35f7769a-49c6-458f-aa26-4cb9e19ccac956 ms42 ms8.3 ms
cdn.mgln.ai/pixel.min.js52 ms48 ms1.6 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 Evaluation5.2 s
Other1.7 s
Style & Layout737 ms
Script Parsing & Compilation602 ms
Parse HTML & CSS342 ms
Rendering173 ms
Garbage Collection27 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
Pages with cache-control:no-store header cannot enter back/forward cache.Actionable
Pages whose main resource has cache-control:no-store cannot enter back/forward cache.Not actionable
Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header.Not actionable

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
www.calm.com/webapi/blog-posts?category=all578.5 KiB
www.calm.com/_next/static/media/jasper-lake.7b49d2ef.webp257.4 KiB
www.calm.com/_next/static/media/content-tile-collage.ac12f6e5.webp249.8 KiB
/content/v1/656f4e4dababbd7c042c4946/1776375929718-S6TCE8...189.5 KiB
www.calm.com/_next/static/chunks/6bcc3924f73ddcb7.js178.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-55DFT24168.9 KiB
www.googletagmanager.com/gtag/js?id=G-N4F47DEEC3&cx=c&_slc=1166.0 KiB
/content/v1/57b5ef68c534a5cc06edc769/1688478993389-Z98ZZM...162.7 KiB
www.googletagmanager.com/gtag/js?id=AW-782291623&cx=c&gtm=4e64h1140.1 KiB
www.calm.com/_next/static/chunks/9f12a3de7607ad3c.js131.6 KiB

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

●Optimize DOM size
●Font display
●Forced reflow
●LCP breakdown
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●User Timing marks and measures 12 user timings
●Avoid long main-thread tasks 20 long tasks found
●Image elements have explicit `width` and `height`
●Network Requests
●Network Round Trip Times 30 ms
●Server Backend Latencies 340 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
○INP breakdown
○Avoid non-composited animations
100

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.

○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
●`[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
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●`button`, `link`, and `menuitem` elements have accessible names
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links 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
●Skip links are focusable.
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[accesskey]` values are unique
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○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.
○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.
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
AttributionReporting
www.calm.com/_next/static/chunks/86d1d098e04915b6.js

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.mgln.ai/pixel.min.js
Uncaught TypeError: Cannot read properties of null (reading 'toString')
●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
●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
○Use a strong HSTS policy
○Mitigate clickjacking with XFO or CSP
100

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.

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

Send Feedback