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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

84

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.

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:104.212 source:map[column:4933 line:73 type:source-location url:https://vercel.com/_next/static/chunks/0zys9gxbu7opo.js?dpl=dpl_D7a52sP1BY5YFBPfWdXK3AGrWRR9 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:48.359 source:map[type:text value:[unattributed]]] map[reflowTime:0.958 source:map[column:18494 line:1 type:source-location url:https://vercel.com/_next/static/chunks/2z13w0dnu8cfe.js?dpl=dpl_D7a52sP1BY5YFBPfWdXK3AGrWRR9 urlProvider:network]] map[reflowTime:1.621 source:map[column:5475 line:5 type:source-location url:https://vercel.com/_next/static/chunks/23jow6d422ghv.js?dpl=dpl_D7a52sP1BY5YFBPfWdXK3AGrWRR9 urlProvider:network]] map[reflowTime:103.254 source:map[column:18044 line:11 type:source-location url:https://vercel.com/_next/static/chunks/3rnezpgon52jr.js?dpl=dpl_D7a52sP1BY5YFBPfWdXK3AGrWRR9 urlProvider:network]] map[reflowTime:30.596 source:map[column:8005 line:28 type:source-location url:https://vercel.com/_next/static/chunks/1hjy0pji8y2k-.js?dpl=dpl_D7a52sP1BY5YFBPfWdXK3AGrWRR9 urlProvider:network]] map[reflowTime:0.208 source:map[column:7899 line:1 type:source-location url:https://vercel.com/_next/static/chunks/3v44cb6r3lq3z.js?dpl=dpl_D7a52sP1BY5YFBPfWdXK3AGrWRR9 urlProvider:network]]]

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: Image Gallery Starter
path: 1,HTML,1,BODY,2,DIV,12,DIV,1,DIV,3,DIV,0,DIV,1,DIV,0,DIV,1,A,1,IMG
selector: div.w-full > div.mt-20 > a.link-module__Q1NRQq__link > img.image-module__ssnYEW__intrinsic
snippet: <img data-version="v1" alt="Image Gallery Starter" loading="lazy" width="300" height="100" decoding="async" data-nimg="1" class="image-module__ssnYEW__intrinsic absolute top-[110px] -right-10 rotate-[-5d…" style="color:transparent;box-shadow:var(--shadow-small)" srcset="/_next/image?url=https%3A%2F%2Fimages.ctfassets.net%2Fe5382hct74si%2F3Pkqi…" src="https://vercel.com/_next/image?url=https%3A%2F%2Fimages.ctfassets.net%2Fe5…">

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
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
value: No additional origins are good candidates for preconnecting

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
vercel.com/_stream/external/cdn.sift.com/s.js86400.0 s21.7 KiB

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

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.

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.

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 Evaluation1.2 s
Style & Layout733 ms
Other604 ms
Script Parsing & Compilation117 ms
Parse HTML & CSS102 ms
Garbage Collection86 ms
Rendering58 ms

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

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: 202 ms
Time to Interactive 2.2 s
Max Potential First Input Delay 120 ms
Layout shift culprits
Optimize DOM size
Font display
Improve image delivery
LCP breakdown
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify CSS
Minify JavaScript
Avoids enormous network payloads Total size was 2,149 KiB
User Timing marks and measures 7 user timings
JavaScript execution time 1.1 s
Avoid long main-thread tasks 12 long tasks found
Image elements have explicit `width` and `height`
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 230 ms
Server Backend Latencies 40 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 0 ms
INP breakdown
Avoid non-composited animations
Avoid large layout shifts
81

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.

ARIA

Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
AI Cloud v0 Build applications with AI AI SDK The AI Toolkit for TypeScript … div > ul.navigation-menu-module__AENi4G__list > li > div#radix-_r_0_-content-features
Company Customers Trusted by the best teams Blog The latest posts and change… div > ul.navigation-menu-module__AENi4G__list > li > div#radix-_r_0_-content-resources
Use Cases AI Apps Deploy at the speed of AI Composable Commerce Power storef… div > ul.navigation-menu-module__AENi4G__list > li > div#radix-_r_0_-content-solutions
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a
label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a label.checkbox-module__Em-o0q__container > span.checkbox-module__Em-o0q__text > div.flex > a

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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
Get started with Next.js and React in seconds. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
An image gallery built on Next.js and Cloudinary. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A full-featured, hackable Next.js AI chatbot built by Vercel div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Simple, powerful and flexible markdown-powered docs site. Built with Next.js. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Deploy Hono backends using the Bun runtime. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Starter kit for high-performance commerce with Shopify. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
An inbound lead qualification and research agent built with Next.js, AI SDK, Wo… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Examples of many Next.js App Router features. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Easily create a portfolio with Next.js and Markdown. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
This is a Slack Agent template built with Bolt for JavaScript (TypeScript) and … div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
An Incremental Static Regeneration Blog Example Using Next.js and WordPress div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Enterprise-grade Next.js boilerplate built with Tailwind CSS, Radix UI, TypeScr… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A statically generated blog example using Next.js and Markdown. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A blog template with Next.js 13 App Router, Contentlayer, Tailwind CSS and dark… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Use a Large Language Model to summarize customer feedback. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A Nuxt.js 3 app, bootstrapped with create-nuxt-app. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
An AI chatbot template to build your own chatbot powered by Nuxt MDC and Vercel… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
AI answer engine with Generative UI. div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A personal website built with Next.js and Sanity featuring visual editing, live… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A clean Next.js + Sanity starter with visual editing, drag-and-drop page builde… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A Next.js starter chatbot using Vercel's AI SDK and implements the Retrieval-Au… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
Real-time collaborative product starter kit built with Next.js and Liveblocks div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
A link-in-bio SaaS built with Nuxt.js, where the data lives in the URL – no dat… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14
The all-in-one subscription starter kit for high-performance SaaS applications,… div.mt-20 > a.link-module__Q1NRQq__link > div.flex > div.text-label-14

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
Filter Templates div.hidden > div.flex > div.flex > h4.m-0

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Vercel logo nav > div.grid > div > ul.list-none

These are opportunities to improve the experience of reading tabular or list data using 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
head > meta head > meta

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.geist_mono_98cac566-module__bcNCwW__className html.geist_mono_98cac566-module__bcNCwW__className

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>`
`[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
Form elements have associated labels
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
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.
Deprecated ARIA roles were not used
ARIA IDs are unique
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
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
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
Links are distinguishable without relying on color.
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.
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

General

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
Failed to load resource: the server responded with a status of 403 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
Failed to load resource: the server responded with a status of 404 ()
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
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`

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