Mobile 375 × 812

Desktop 1440 × 900

Score: 73 / 100
Based on 8 categories, 0 sections
The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.
Weights reflect general web best practices. Individual needs may differ.
Content-Security-Policy header is missing
No Content-Security-Policy header found
Page weighs 20.7 MB (13.0 MB transferred)
12 image-only link(s) without alt text
is missing width/height — may cause layout shift
[](https://beavercheck.com/results/9b53f2bf-56c0-456d-a77d-06f0458f7366)<a href="https://beavercheck.com/results/9b53f2bf-56c0-456d-a77d-06f0458f7366"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fslack.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fslack.comThis badge auto-updates with your latest scan result.
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Industry-standard audits powered by Google Lighthouse.
Key metrics that affect user experience.
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.78 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
10.66 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.26 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.120
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.78 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
36.21 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
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.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
| URL | Resource Size | Est Savings | |
|---|---|---|---|
div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image | /d83eb17/marketing/img/homepage/revamped-25/dark-componen... | 293.1 KiB | 286.3 KiB |
div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video | a.slack-edge.com/5cb5052/marketing/img/homepage/revamped-25/hero/hp-hero@2x.jpg | 260.3 KiB | 253.5 KiB |
div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image | /d83eb17/marketing/img/homepage/revamped-25/dark-componen... | 259.5 KiB | 252.7 KiB |
div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video | /5cb5052/marketing/img/homepage/revamped-25/hero/hp-chann... | 247.7 KiB | 240.9 KiB |
div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image | /d83eb17/marketing/img/homepage/revamped-25/dark-componen... | 222.8 KiB | 216.0 KiB |
div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image | /d83eb17/marketing/img/homepage/revamped-25/dark-componen... | 211.9 KiB | 205.1 KiB |
div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video | a.slack-edge.com/5cb5052/marketing/img/homepage/revamped-25/hero/hp-lists@2x.jpg | 203.2 KiB | 196.4 KiB |
Slackbot helps MrBeast create viral videos. div#swiper-wrapper-a78bc542c0ec1cb7 > div.swiper-slide > a.v--top > div.comp-customer-videos__card | /a889c36/marketing/img/homepage/revamped-24/customer-vide... | 264.3 KiB | 180.0 KiB |
div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video | /c3ea545/marketing/img/homepage/revamped-25/hero/img-3p-a... | 180.9 KiB | 179.6 KiB |
div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image | /d83eb17/marketing/img/homepage/revamped-25/dark-componen... | 168.9 KiB | 162.1 KiB |
div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video div#swiper-wrapper-fd57c8810edf621031 > div.swiper-slide > div.c-billboard-swiper-item > video.c-billboard__carousel-video | /5cb5052/marketing/img/homepage/revamped-25/hero/hp-workf... | 159.2 KiB | 152.4 KiB |
Slack UI displays an AI answer to a search query. div.asset-text-carousel__text > div.c-accordion-carousel__text > div.c-accordion-carousel__asset > img.c-accordion-carousel__asset-img | /c3ea545/marketing/img/homepage/revamped-25/carousels/img... | 156.2 KiB | 152.2 KiB |
Slack UI displays an AI answer to a search query. div.asset-text-carousel__text > div.c-accordion-carousel__text > div.c-accordion-carousel__asset > img.c-accordion-carousel__asset-img | /5cb5052/marketing/img/homepage/revamped-25/carousels/img... | 144.9 KiB | 141.1 KiB |
div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image div#swiper-wrapper-97da358145e3bde3 > div.swiper-slide > div.c-ai-swiper-item > video.c-switcher-item__image | /c3ea545/marketing/img/homepage/revamped-25/dark-componen... | 88.1 KiB | 87.0 KiB |
Slack helps Rivian do business in the fast lane div#swiper-wrapper-a78bc542c0ec1cb7 > div.swiper-slide > a.v--top > div.comp-customer-videos__card | /66e1519/marketing/img/homepage/revamped-24/customer-vide... | 36.0 KiB | 4.5 KiB |
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
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.
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.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
| URL | Est Savings |
|---|---|
| fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 | 15 ms |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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.
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.
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
| Element | Layout shift score |
|---|---|
body.homepage-slim-banner-enabled > main#main > div.c-arc body.homepage-slim-banner-enabled > main#main > div.c-arc | 0.068 |
body.homepage-slim-banner-enabled > main#main > div.c-arc body.homepage-slim-banner-enabled > main#main > div.c-arc | 0.052 |
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.
| URL | Transfer Size | Est Savings |
|---|---|---|
| a.slack-edge.com/bv1-13-br/rollup-style-spacesuit.a552f73d81dbd17a340d.min.css | 83.2 KiB | 78.4 KiB |
| #onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} … | 20.8 KiB | 20.4 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.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /bv1-13-br/rollup-marketing.8312e05a3c017ab833de.marketin... | 185.5 KiB | 135.3 KiB |
| t.contentsquare.net/uxa/eaf9ce4ae4903.js | 139.7 KiB | 75.5 KiB |
| www.googletagmanager.com/gtag/js?id=DC-11463663&cx=c>m=4e6411 | 127.9 KiB | 59.0 KiB |
| www.googletagmanager.com/gtag/destination?id=DC-12632256&cx=c>m=4e6411 | 129.3 KiB | 58.6 KiB |
| cdn.cookielaw.org/scripttemplates/202402.1.0/otBannerSdk.js | 104.6 KiB | 57.9 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-KH2LPK | 195.4 KiB | 57.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-QTJQME5M5D&cx=c>m=4e6411 | 177.8 KiB | 51.1 KiB |
| a.slack-edge.com/bv1-13-br/marketing-core.cf1dd39ec9100fc5cc4f.marketing.min.js | 30.8 KiB | 27.8 KiB |
| /bv1-13-br/marketing-customer-videos.c547a581ff0c64e6cfa8... | 24.6 KiB | 24.3 KiB |
| a.slack-edge.com/bv1-13-br/swiper.c790778cd9fb4f6b41e1.marketing.min.js | 34.6 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 reduce Javascript execution time.
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
| Category | Time Spent |
|---|---|
| Script Evaluation | 5.4 s |
| Other | 3.8 s |
| Style & Layout | 822 ms |
| Script Parsing & Compilation | 694 ms |
| Rendering | 276 ms |
| Parse HTML & CSS | 257 ms |
| Garbage Collection | 227 ms |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
| URL | |
|---|---|
Slack UI displays an AI answer to a search query. div.asset-text-carousel__text > div.c-accordion-carousel__text > div.c-accordion-carousel__asset > img.c-accordion-carousel__asset-img | /c3ea545/marketing/img/homepage/revamped-25/carousels/img... |
Slack UI displays an AI answer to a search query. div.asset-text-carousel__text > div.c-accordion-carousel__text > div.c-accordion-carousel__asset > img.c-accordion-carousel__asset-img | /5cb5052/marketing/img/homepage/revamped-25/carousels/img... |
Slack div.c-nav__row > div.c-slacklogo > a.c-slacklogo--white > img.c-slacklogo--color | /38f0e7c/marketing/img/nav/slack-salesforce-logo-nav-blac... |
OpenAI Logo div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
IBM Logo div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
Stripe Logo div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
Paramount Logo div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
GM Logo div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
Target Logo div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img div.c-rotating-logo-bar--container > div.c-rotating-logo-bar > div.logo-set > img | /marketing/img/homepage/true-prospects/hero-revamp/logos/... |
ul.c-nav__legal_list > li > a.privacy-choice > img ul.c-nav__legal_list > li > a.privacy-choice > img | a.slack-edge.com/fd21de4/marketing/img/nav/ccpa.svg |
div.c-nav--expanded-footer__submenu > div.c-nav__legal-links > a.download-slack-link > img.c-nav--expanded-footer__download-icon div.c-nav--expanded-footer__submenu > div.c-nav__legal-links > a.download-slack-link > img.c-nav--expanded-footer__download-icon | a.slack-edge.com/fd21de4/marketing/img/nav/download.svg |
div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small | |
div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Including a skip link can help users skip to the main content to save time. Learn more about skip links.
| Failing Elements |
|---|
SKIP TO MAIN CONTENT body.homepage-slim-banner-enabled > a.c-button |
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.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
| Failing Elements |
|---|
Download Slack footer.c-nav > div.c-nav--expanded-footer__submenu > div.c-nav__legal-links > a.download-slack-link |
These items highlight common accessibility best practices.
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.
| Failing Elements |
|---|
Slackbot helps MrBeast create viral videos. div.swiper-container > div#swiper-wrapper-a78bc542c0ec1cb7 > div.swiper-slide > a.v--top |
Slack helps Box bring agents to every employee div.swiper-container > div#swiper-wrapper-a78bc542c0ec1cb7 > div.swiper-slide > a.v--top |
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
| Deprecation / Warning | Source |
|---|---|
| Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md. | slack.com/ line 313, col -1 |
| AttributionReporting |
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
| Source | Description |
|---|---|
TypeError: Failed to execute 'observe' on 'IntersectionObserver': parameter 1 is not of type 'Element'.
at HTMLDocument.<anonymous> (https://a.slack-edge.com/bv1-13-br/marketing-dynamic-stats.d5fc123908e730aedd32.marketing.min.js:1:641) |
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.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
| Link destination | Link Text |
|---|---|
| www.salesforce.com/slack/slackbot/agent-orchestration/ | Learn more |
| slack.com/cookie-policy | More information |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Industry-standard audits powered by Google Lighthouse. — Desktop
Key metrics that affect user experience. — Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
734 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.25 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.44 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.027
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.68 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
6.98 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
| URL | Est Savings |
|---|---|
| fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 | 25 ms |
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.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
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.
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.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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.
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.
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.
| URL | Transfer Size | Est Savings |
|---|---|---|
| a.slack-edge.com/bv1-13-br/rollup-style-spacesuit.a552f73d81dbd17a340d.min.css | 83.3 KiB | 77.7 KiB |
| #onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} … | 20.8 KiB | 20.5 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.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /bv1-13-br/rollup-marketing.8312e05a3c017ab833de.marketin... | 185.7 KiB | 135.6 KiB |
| t.contentsquare.net/uxa/eaf9ce4ae4903.js | 139.7 KiB | 75.1 KiB |
| www.googletagmanager.com/gtag/js?id=DC-11463663&cx=c>m=4e6420h2 | 128.2 KiB | 59.5 KiB |
| www.googletagmanager.com/gtag/destination?id=DC-12632256&cx=c>m=4e6420h2 | 129.6 KiB | 59.0 KiB |
| cdn.cookielaw.org/scripttemplates/202402.1.0/otBannerSdk.js | 104.6 KiB | 57.9 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-KH2LPK | 195.9 KiB | 57.7 KiB |
| www.googletagmanager.com/gtag/js?id=G-QTJQME5M5D&cx=c>m=4e6420h2 | 178.3 KiB | 51.5 KiB |
| a.slack-edge.com/bv1-13-br/swiper.c790778cd9fb4f6b41e1.marketing.min.js | 34.6 KiB | 34.6 KiB |
| a.slack-edge.com/bv1-13-br/marketing-core.cf1dd39ec9100fc5cc4f.marketing.min.js | 30.8 KiB | 27.9 KiB |
| /bv1-13-br/marketing-customer-videos.c547a581ff0c64e6cfa8... | 24.7 KiB | 24.4 KiB |
| /bv1-13-br/marketing-page-index.c74a9a30ca5bbd0b4f24.mark... | 35.0 KiB | 20.6 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.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| slack.com/ | 4.3 s | 12 ms | 2.5 ms |
| Unattributable | 1.3 s | 59 ms | 0.0 ms |
| www.googletagmanager.com/gtm.js?id=GTM-KH2LPK | 677 ms | 542 ms | 81 ms |
| www.googletagmanager.com/gtag/js?id=G-QTJQME5M5D&cx=c>m=4e6420h2 | 323 ms | 277 ms | 24 ms |
| t.contentsquare.net/uxa/eaf9ce4ae4903.js | 276 ms | 192 ms | 81 ms |
| /bv1-13-br/rollup-marketing.8312e05a3c017ab833de.marketin... | 130 ms | 89 ms | 28 ms |
| www.googletagmanager.com/gtag/js?id=DC-11463663&cx=c>m=4e6420h2 | 128 ms | 95 ms | 31 ms |
| www.googletagmanager.com/gtag/destination?id=DC-12632256&cx=c>m=4e6420h2 | 97 ms | 84 ms | 11 ms |
| tag.demandbase.com/n1qTRo0B.min.js | 90 ms | 52 ms | 2.2 ms |
| b-code.liadm.com/a-01kd.min.js | 90 ms | 71 ms | 11 ms |
| cdn.cookielaw.org/scripttemplates/202402.1.0/otBannerSdk.js | 76 ms | 56 ms | 13 ms |
| www.mczbf.com/tags/639879746232/tag.js | 58 ms | 50 ms | 7.0 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
| Category | Time Spent |
|---|---|
| Other | 5.3 s |
| Script Evaluation | 1.8 s |
| Script Parsing & Compilation | 328 ms |
| Style & Layout | 199 ms |
| Garbage Collection | 104 ms |
| Parse HTML & CSS | 70 ms |
| Rendering | 52 ms |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
| URL | |
|---|---|
Slack div.c-nav__row > div.c-slacklogo > a.c-slacklogo--white > img.c-slacklogo--color | a.slack-edge.com/38f0e7c/marketing/img/nav/slack-salesforce-logo-nav-black.png |
Close Navigation footer.c-nav > div.c-nav--expanded-footer__menu > a.c-slackhash > img | a.slack-edge.com/38f0e7c/marketing/img/nav/logo.svg |
li#link_features_slackbot_exp_nav > a > div.nav_link_label > img.nav_std_icon li#link_features_slackbot_exp_nav > a > div.nav_link_label > img.nav_std_icon | a.slack-edge.com/b518216/marketing/img/nav/slackbot-nav-icon.svg |
div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset | slack.com/marketing/img/homepage/revamped-25/hero/icons/icon-slackbot.svg |
div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset | slack.com/marketing/img/homepage/revamped-25/hero/icons/icon-pencil.svg |
div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset | slack.com/marketing/img/homepage/revamped-25/hero/icons/icon-list.svg |
div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset | slack.com/marketing/img/homepage/revamped-25/hero/icons/icon-chat.svg |
div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset div.c-billboard__icons > div.c-billboard__icon > div.c-billboard__icon-text > img.c-billboard__icon-asset | slack.com/marketing/img/homepage/revamped-25/hero/icons/icon-zap.svg |
ul.c-nav__legal_list > li > a.privacy-choice > img ul.c-nav__legal_list > li > a.privacy-choice > img | a.slack-edge.com/fd21de4/marketing/img/nav/ccpa.svg |
li#link_features_ai_exp_nav > a > div.nav_link_label > img.nav_std_icon li#link_features_ai_exp_nav > a > div.nav_link_label > img.nav_std_icon | a.slack-edge.com/7d8fca7/marketing/img/nav/ai-sparkles.svg |
li#nav_features_main_bottom > ul.c-extnav-level__3 > li#features-download-slack > img.nav_cta_icon li#nav_features_main_bottom > ul.c-extnav-level__3 > li#features-download-slack > img.nav_cta_icon | a.slack-edge.com/fd21de4/marketing/img/nav/download.svg |
li#nav_solutions_main_bottom > ul.c-extnav-level__3 > li#solutions-download-slack > img.nav_cta_icon li#nav_solutions_main_bottom > ul.c-extnav-level__3 > li#solutions-download-slack > img.nav_cta_icon | a.slack-edge.com/fd21de4/marketing/img/nav/download.svg |
li#nav_resources_main_bottom > ul.c-extnav-level__3 > li#resources-download-slack > img.nav_cta_icon li#nav_resources_main_bottom > ul.c-extnav-level__3 > li#resources-download-slack > img.nav_cta_icon | a.slack-edge.com/fd21de4/marketing/img/nav/download.svg |
div.c-nav--expanded-footer__submenu > div.c-nav__legal-links > a.download-slack-link > img.c-nav--expanded-footer__download-icon div.c-nav--expanded-footer__submenu > div.c-nav__legal-links > a.download-slack-link > img.c-nav--expanded-footer__download-icon | a.slack-edge.com/fd21de4/marketing/img/nav/download.svg |
div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small | |
div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small div.c-accordion-carousel__text-decoration > div.c-accordion-carousel__decoration-container > div.c-accordion-carousel__decoration > img.u-margin-bottom--small | |
Play video div.comp-customer-videos__card > div.comp-customer-videos__card-overlay > div.comp-customer-videos__card-play > img.lazyload |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Including a skip link can help users skip to the main content to save time. Learn more about skip links.
| Failing Elements |
|---|
SKIP TO MAIN CONTENT body.homepage-slim-banner-enabled > a.c-button |
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.
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.
| Failing Elements |
|---|
Slackbot helps MrBeast create viral videos. section.o-section--feature > div.comp-customer-videos > div.comp-customer-videos__cards > a.v--top |
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
| Deprecation / Warning | Source |
|---|---|
| Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md. | slack.com/ line 305, col -1 |
| AttributionReporting |
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
| Source | Description |
|---|---|
Access to XMLHttpRequest at 'https://ibc-flow.techtarget.com/a/gif.gif?actTypeId=31&cid=17821466&r=1775323566455&ref=https%3A%2F%2Fslack.com%2F&version=2.4' from origin 'https://slack.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. | |
Failed to load resource: net::ERR_FAILED |
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.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
| Link destination | Link Text |
|---|---|
| www.salesforce.com/slack/slackbot/agent-orchestration/ | Learn more |
| slack.com/cookie-policy | More information |
Format your HTML in a way that enables crawlers to better understand your app’s content.
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