Lighthouse Desktop

· 0 checks — Desktop 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
www.calm.com/api/12Xk43jk/init.js	600.0 s	104.5 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	96.6 KiB
/signals/config/1716780165218419?v=2.9.303&r=stable&domai...	1200.0 s	46.8 KiB
/analytics.js/v1/C16PWBq5gYGXHUBqydqThTjx9MdPyo48/analyti...	120.0 s	30.0 KiB
www.calm.com/_n/images/homepage/blue-wave-bg.webp	86400.0 s	68.7 KiB
truemed-public.s3.us-west-1.amazonaws.com/truemed-ads/prequal-widget.min.js	0.0 ms	22.2 KiB
utt.impactcdn.com/A4013006-41a1-4ccd-93e9-9fde9b93a8211.js	900.0 s	20.5 KiB
websdk.appsflyer.com/?st=pba&af_id=35f7769a-49c6-458f-aa26-4cb9e19ccac9	0.0 ms	15.9 KiB
www.google-analytics.com/analytics.js	7200.0 s	20.9 KiB
www.calm.com/_n/fonts/Figtree-Bold.woff2	86400.0 s	23.5 KiB
www.calm.com/_n/fonts/Figtree-Medium.woff2	86400.0 s	23.4 KiB
www.calm.com/_n/fonts/Figtree-Regular.woff2	86400.0 s	23.3 KiB
cdn.mgln.ai/pixel.min.js	14400.0 s	3.0 KiB
/tr/?id=1716780165218419&ev=PageView&dl=https%3A%2F%2Fwww...	0.0 ms	19 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:0.303664] map[node:map[boundingRect:map[bottom:1415 height:475 left:0 right:1350 top:940 width:1350] lhId:page-9-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:0.303352] map[node:map[boundingRect:map[bottom:78 height:56 left:802 right:1310 top:22 width:508] lhId:page-7-UL nodeLabel:Screening Calm Health Log In Try Calm for Free path:1,HTML,1,BODY,5,HEADER,1,DIV,0,NAV,1,UL selector:header.styles__Wrapper-sc-5441692d-0 > div.styles__FocusWrapper-sc-595ba667-0 > nav.styles__Wrapper-sc-595ba667-1 > ul.styles__NavWrapper-sc-595ba667-2 snippet:<ul class="styles__NavWrapper-sc-595ba667-2 klgscN"> type:node] score:0.000312 subItems:map[items:[map[cause:Web font extra:map[type:url value:https://www.calm.com/_n/fonts/Figtree-Bold.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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:14.515 source:map[column:7129 line:1 type:source-location url:https://www.calm.com/_next/static/chunks/9a0d6000a621abbf.js urlProvider:network]]]

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:125.394 source:map[type:text value:[unattributed]]] map[reflowTime:14.515 source:map[column:412 line:0 type:source-location url:https://www.calm.com/_next/static/chunks/6cea4d5e2cdf1c6a.js urlProvider:network]] map[reflowTime:0.606 source:map[column:358713 line:0 type:source-location url:https://www.calm.com/_next/static/chunks/6bcc3924f73ddcb7.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.

	URL	Resource Size	Est Savings
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.webp	249.2 KiB	160.6 KiB
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.webp	256.9 KiB	90.0 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 KiB	50.1 KiB
main#main-content > section.styles__Wrapper-sc-2f4e966a-0 > div.styles__BgContainer-sc-2f4e966a-4 > img `main#main-content > section.styles__Wrapper-sc-2f4e966a-0 > div.styles__BgContainer-sc-2f4e966a-4 > img`	www.calm.com/_n/images/homepage/blue-wave-bg.webp	68.2 KiB	35.7 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 KiB	32.6 KiB
Thumbnail for What is a narcissist? Meaning, definition, and signs of narcissism `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/v1/656f4e4dababbd7c042c4946/1715283496259-Q6BG5X...	38.4 KiB	20.3 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-1-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: 534 ms

URL	Time Spent
calm.com/	534 ms
www.calm.com/	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.

Element	Layout 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`	0.303
Screening Calm Health Log In Try Calm for Free `header.styles__Wrapper-sc-5441692d-0 > div.styles__FocusWrapper-sc-595ba667-0 > nav.styles__Wrapper-sc-595ba667-1 > ul.styles__NavWrapper-sc-595ba667-2`	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

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: 280 ms 465.1 KiB

URL	Transfer Size	Est Savings
www.calm.com/_next/static/chunks/6bcc3924f73ddcb7.js	178.1 KiB	69.7 KiB
www.googletagmanager.com/gtag/js?id=G-N4F47DEEC3&cx=c&_slc=1	166.0 KiB	69.5 KiB
www.calm.com/_next/static/chunks/9f12a3de7607ad3c.js	131.1 KiB	64.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-55DFT24	168.6 KiB	62.9 KiB
www.googletagmanager.com/gtag/js?id=AW-782291623&cx=c&gtm=4e64h1	140.1 KiB	51.1 KiB
www.calm.com/api/12Xk43jk/init.js	104.0 KiB	40.8 KiB
connect.facebook.net/en_US/fbevents.js	96.5 KiB	35.8 KiB
www.calm.com/_next/static/chunks/86d1d098e04915b6.js	49.5 KiB	26.9 KiB
www.calm.com/_next/static/chunks/9a0d6000a621abbf.js	65.7 KiB	23.6 KiB
/signals/config/1716780165218419?v=2.9.303&r=stable&domai...	46.7 KiB	20.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	1.4 s
Other	382 ms
Style & Layout	234 ms
Script Parsing & Compilation	154 ms
Parse HTML & CSS	122 ms
Rendering	37 ms
Garbage Collection	22 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 reason	Failure 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.

URL	Transfer Size
www.calm.com/webapi/blog-posts?category=all	578.5 KiB
www.calm.com/_next/static/media/jasper-lake.7b49d2ef.webp	257.4 KiB
www.calm.com/_next/static/media/content-tile-collage.ac12f6e5.webp	249.8 KiB
/content/v1/656f4e4dababbd7c042c4946/1776375929718-S6TCE8...	189.7 KiB
www.calm.com/_next/static/chunks/6bcc3924f73ddcb7.js	178.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-55DFT24	168.9 KiB
www.googletagmanager.com/gtag/js?id=G-N4F47DEEC3&cx=c&_slc=1	166.0 KiB
/content/v1/57b5ef68c534a5cc06edc769/1688478993389-Z98ZZM...	162.7 KiB
www.googletagmanager.com/gtag/js?id=AW-782291623&cx=c&gtm=4e64h1	140.1 KiB
www.calm.com/_next/static/chunks/9f12a3de7607ad3c.js	131.6 KiB

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

●Max Potential First Input Delay 100 ms

●Optimize DOM size

●Font display

●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

●JavaScript execution time 1.3 s

●Avoid long main-thread tasks 11 long tasks found

●Image elements have explicit `width` and `height`

●Network Requests

●Network Round Trip Times 20 ms

●Server Backend Latencies 330 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 500 ms

○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

●Elements with visible text labels have matching accessible names.

○`[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.

○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

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 / Warning	Source
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.

Source	Description
www.calm.com/?_rsc=p37cr	`Failed to load resource: the server responded with a status of 403 ()`
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`