Skip to content
https://www.redis.io

Lighthouse Desktop

· 0 checks — Desktop 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.

80

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:119.982 source:map[column:89807 line:2 type:source-location url:https://redis.io/_next/static/chunks/7369-0f0754218170d7e9.js?dpl=dpl_em4Txm4spqw9TmwDRzvoK8nocXcw 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:112.474 source:map[type:text value:[unattributed]]] map[reflowTime:118.336 source:map[column:14754 line:0 type:source-location url:https://redis.io/_next/static/chunks/5289-ae69001eab3be3dd.js?dpl=dpl_em4Txm4spqw9TmwDRzvoK8nocXcw urlProvider:network]] map[reflowTime:1.713 source:map[column:1793 line:0 type:source-location url:https://redis.io/_next/static/chunks/5289-ae69001eab3be3dd.js?dpl=dpl_em4Txm4spqw9TmwDRzvoK8nocXcw urlProvider:network]] map[reflowTime:1.47 source:map[column:21046 line:0 type:source-location url:https://redis.io/_next/static/chunks/9146-646ea7851ff0b9e9.js?dpl=dpl_em4Txm4spqw9TmwDRzvoK8nocXcw urlProvider:network]] map[reflowTime:1.909 source:map[column:280 line:14 type:source-location url:https://consent.trustarc.com/asset/notice.js/v/v1.7-8549 urlProvider:network]] map[reflowTime:0.176 source:map[column:3946 line:6938 type:source-location url:https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-8549 urlProvider:network]] map[reflowTime:44.85 source:map[column:521 line:18 type:source-location url:https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-8549 urlProvider:network]] map[reflowTime:0.141 source:map[column:1504 line:25 type:source-location url:https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-8549 urlProvider:network]]]

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.

URLResource SizeEst Savings
TrustArc Logo div.gdpr > div#cookieMainHeader > span.logo > img
consent.trustarc.com/get?name=Redis_v0424.png46.2 KiB43.2 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: 256 ms
URLTime Spent
www.redis.io/256 ms
redis.io/0.0 ms

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.

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 reduce Javascript execution time.

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
Other5.4 s
Script Evaluation2.6 s
Style & Layout1.4 s
Rendering1.2 s
Script Parsing & Compilation170 ms
Garbage Collection102 ms
Parse HTML & CSS46 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
div.styles_container__ImQx_ > div.styles_contentWrapper__GXd4_ > div.styles_imageContainer__94pGQ > img.styles_svgImage__Hr5OU div.styles_container__ImQx_ > div.styles_contentWrapper__GXd4_ > div.styles_imageContainer__94pGQ > img.styles_svgImage__Hr5OU
/images/sy1jschh/production/8379f78a4082c502446af513120eb...
div.styles_container__ImQx_ > div.styles_contentWrapper__GXd4_ > div.styles_imageContainer__94pGQ > img.styles_svgImage__Hr5OU div.styles_container__ImQx_ > div.styles_contentWrapper__GXd4_ > div.styles_imageContainer__94pGQ > img.styles_svgImage__Hr5OU
/images/sy1jschh/production/8379f78a4082c502446af513120eb...

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

Max Potential First Input Delay 120 ms
Layout shift culprits
Optimize DOM size
Font display
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
Minify JavaScript
User Timing marks and measures 2 user timings
Avoid long main-thread tasks 6 long tasks found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 170 ms
Server Backend Latencies 260 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 110 ms
Avoid large layout shifts 5 layout shifts found
INP breakdown
LCP request discovery
Avoid non-composited animations
80

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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
NO YES div.prefPanel > div > div.cookiecat > div.switch
NO YES div.prefPanel > div > div.cookiecat > div.switch
NO YES div.prefPanel > div > div.cookiecat > div.switch

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
nav.styles_container__JJpaD > ul > li.styles_buttons__60Y5z > button.styles_button__YDNft nav.styles_container__JJpaD > ul > li.styles_buttons__60Y5z > button.styles_button__YDNft

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.footer > div.left > a#privacyPolicyAnchor > img.inline-e3jf3l div.footer > div.left > a#privacyPolicyAnchor > img.inline-e3jf3l

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.

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
View Required Cookies div.prefPanel > div > div.cookiecat > a.viewcookie
Detailed Settings div.prefPanel > div > div.cookiecat > a.viewcookie
Detailed Settings div.prefPanel > div > div.cookiecat > a.viewcookie
View Required Cookies div.prefPanel > div > div.cookiecat > a.viewcookie
Privacy Policy div > div.footer > div.left > a#privacyPolicyAnchor
Powered by: div.wrapper > div > div.footer > div.right

These are opportunities to improve the legibility of your content.

Navigation

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body.__variable_bd0331 > div#pop-div203557732196449359 > div#pop-div3010819179435927773 > div#pop-frame029726429865171 body.__variable_bd0331 > div#pop-div203557732196449359 > div#pop-div3010819179435927773 > div#pop-frame029726429865171

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
Think fast. Build faster. section.style_section__Qbg1z > div.styles_container__ImQx_ > div.styles_title__PZyMD > h3.styles_text__Pngqw
Required Cookies div.cookiecat > div > span.gwt-InlineHTML > h3

These are opportunities to improve keyboard navigation in your application.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
View Required Cookies div.prefPanel > div > div.cookiecat > a.viewcookie
Detailed Settings div.prefPanel > div > div.cookiecat > a.viewcookie
NO div > div.cookiecat > div.switch > span.gwt-InlineHTML
YES div > div.cookiecat > div.switch > span.gwt-InlineHTML
Detailed Settings div.prefPanel > div > div.cookiecat > a.viewcookie
NO div > div.cookiecat > div.switch > span.gwt-InlineHTML
YES div > div.cookiecat > div.switch > span.gwt-InlineHTML
View Required Cookies div.prefPanel > div > div.cookiecat > a.viewcookie
NO div > div.cookiecat > div.switch > span.gwt-InlineHTML
YES div > div.cookiecat > div.switch > span.gwt-InlineHTML
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
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Select elements have associated label elements.
`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
ARIA input fields have accessible names
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 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
Touch targets have sufficient size and spacing.
`[lang]` attributes have a valid value
Skip links are focusable.
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
`[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
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.
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
Amplitude Engagement Logger [Error]: User must specify at least a user_id or device_id
Failed to load resource: the server responded with a status of 401 ()
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
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
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
redis.io/cloud/Learn more
redis.io/software/Learn more

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.footer > div.left > a#privacyPolicyAnchor > img.inline-e3jf3l div.footer > div.left > a#privacyPolicyAnchor > img.inline-e3jf3l

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
Document has a valid `hreflang`
Document has a valid `rel=canonical`

Send Feedback