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.

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
/static/metaserver/static/fonts/paper-atlasgrotesk/AtlasG...	35 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.

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:40.04 source:map[column:26738 line:2 type:source-location url:https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_react-dom-vflLgv8vi.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:108.872 source:map[type:text value:[unattributed]]] map[reflowTime:40.04 source:map[column:294121 line:1 type:source-location url:https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflbRcsxa.js urlProvider:network]] map[reflowTime:1.647 source:map[column:752912 line:1 type:source-location url:https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflbRcsxa.js urlProvider:network]] map[reflowTime:7.665 source:map[column:762533 line:1 type:source-location url:https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflbRcsxa.js urlProvider:network]] map[reflowTime:59.922 source:map[column:770303 line:1 type:source-location url:https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflbRcsxa.js urlProvider:network]] map[reflowTime:0.256 source:map[column:1.362981e+06 line:1 type:source-location url:https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_warp_warp_page_edison-vflbRcsxa.js urlProvider:network]] map[reflowTime:0.655 source:map[column:163834 line:1 type:source-location url:https://cfl.dropboxstatic.com/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_fingerprintjs_fpjs-pro-static_fp-vflGINDbV.js 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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
/static/metaserver/static/css/font_sharp_grotesk-vflwgPRU...	12.5 KiB	332 ms
/static/typescript/component_libraries/dwg-components/src...	40.1 KiB	561 ms
/static/typescript/component_libraries/dwg-components/src...	470 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	704 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	772 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	472 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	658 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	763 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	1.1 KiB	69 ms
/static/typescript/component_libraries/dwg-components/src...	578 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	1.2 KiB	69 ms
/static/typescript/component_libraries/dwg-components/src...	807 B	69 ms
/static/metaserver/static/css/dig-components/tokens-vflyw...	11.9 KiB	332 ms
/static/typescript/component_libraries/dwg-components/src...	524 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	471 B	69 ms
/static/metaserver/static/js/alameda_bundle/alameda_bundl...	21.7 KiB	206 ms
/static/typescript/component_libraries/dwg-components/src...	1.4 KiB	69 ms
/static/typescript/component_libraries/dwg-components/src...	1.4 KiB	69 ms
/static/typescript/component_libraries/dwg-components/src...	557 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	631 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	661 B	69 ms
/static/metaserver/static/css/warp/skip_to_main_content-v...	737 B	240 ms
/static/typescript/component_libraries/dwg-components/src...	750 B	69 ms
cfl.dropboxstatic.com/static/metaserver/static/css/notify-vfl1v0oiv.css	741 B	240 ms
/static/typescript/component_libraries/dwg-components/src...	1.4 KiB	69 ms
/static/typescript/component_libraries/dwg-components/src...	614 B	69 ms
/static/metaserver/static/css/dig-fonts/index.metaserver-...	1.4 KiB	240 ms
/static/typescript/component_libraries/dwg-components/src...	659 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	1.5 KiB	69 ms
cfl.dropboxstatic.com/static/metaserver/static/css/accessibility-vfliGZNRm.css	562 B	240 ms
/static/typescript/component_libraries/dwg-components/src...	1.4 KiB	69 ms
/static/typescript/component_libraries/dwg-components/src...	727 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	379 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	625 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	382 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	745 B	69 ms
/static/metaserver/static/css/dig-fonts/sharp_grotesk_23....	1.0 KiB	240 ms
/static/typescript/component_libraries/dwg-components/src...	550 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	839 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	646 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	601 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	525 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	565 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	491 B	69 ms
/static/js/ungated-file-app/src/components/file-input/ind...	406 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	471 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	593 B	69 ms
/static/typescript/component_libraries/dwg-components/src...	476 B	69 ms
/static/metaserver/static/js/warp/components/dwg/dwg_mark...	531 B	69 ms
/static/metaserver/static/js/warp/context/warp_context.mo...	534 B	69 ms
/static/metaserver/static/js/warp/components/common/warp_...	677 B	69 ms
/static/metaserver/static/css/font_sharp_grotesk-vflRd2mZ...	1.2 KiB	69 ms
/static/metaserver/static/js/warp/components/dwg/dwg_pdf_...	546 B	69 ms
/static/metaserver/static/css/font_paper_atlas_grotesk-vf...	910 B	240 ms

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
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	3600.0 s	5.3 MiB
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	3600.0 s	1.7 MiB
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	3600.0 s	1.3 MiB
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	3600.0 s	831.4 KiB
assets.adobedtm.com/7c31e7b46b8e/5feae65e0b10/launch-9b21c433d0d6.min.js	3600.0 s	47.8 KiB
/warp/conversion/dropbox/warp/en-us/index/october-2025-la...	86400.0 s	53.1 KiB
/warp/conversion/dropbox/warp/en-us/index/desktop-mobile-...	86400.0 s	49.3 KiB
/warp/conversion/dropbox/warp/en-us/index/october-2025-la...	86400.0 s	17.4 KiB
/warp/conversion/dropbox/warp/icons/home-pg-logos/Crunch....	86400.0 s	12.9 KiB
/warp/conversion/dropbox/warp/icons/home-pg-logos/Cirque....	86400.0 s	9.1 KiB
/warp/conversion/dropbox/warp/icons/home-pg-logos/Hydro.s...	86400.0 s	7.6 KiB
/warp/conversion/dropbox/warp/icons/home-pg-logos/McLaren...	86400.0 s	3.8 KiB
/warp/conversion/dropbox/warp/icons/home-pg-logos/Lincoln...	86400.0 s	2.2 KiB
/warp/conversion/dropbox/warp/icons/home-pg-logos/Katz.sv...	86400.0 s	2.2 KiB
/warp/conversion/dropbox/warp/icons/home-pg-logos/Zoom.sv...	86400.0 s	2.2 KiB
/7c31e7b46b8e/5feae65e0b10/4a7579f9708e/RCe690552bddfc46d...	3600.0 s	809 B
/7c31e7b46b8e/5feae65e0b10/4a7579f9708e/RC07e99ffb24cd457...	3600.0 s	666 B
/7c31e7b46b8e/5feae65e0b10/4a7579f9708e/RC388cd7fa3bf94c2...	3600.0 s	585 B
/warp/conversion/dropbox/warp/icons/reclaim-dbx-waffle-32...	86400.0 s	1.1 KiB
/warp/conversion/dropbox/warp/icons/DocSend-logo-nav.svg?...	86400.0 s	1.1 KiB
/7c31e7b46b8e/5feae65e0b10/4a7579f9708e/RC5525b8317527424...	3600.0 s	534 B
/warp/conversion/dropbox/warp/icons/dash-logo-nav.svg?id=...	86400.0 s	1.0 KiB
/warp/conversion/dropbox/warp/icons/replay-logo-nav.svg?i...	86400.0 s	1.0 KiB
/warp/conversion/dropbox/warp/icons/dropbox-sign-logo.svg...	86400.0 s	938 B
/warp/conversion/dropbox/warp/icons/Dropbox-logo-nav.svg?...	86400.0 s	910 B
/warp/conversion/dropbox/warp/icons/arrow_right.svg?id=e5...	86400.0 s	891 B

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
Glassware campaign review cover `div._media_mrwa9_95 > div.dwg-media > picture.dwg-box > img.dwg-media-image`	/warp/conversion/dropbox/warp/en-us/index/october-2025-la...	52.7 KiB	33.5 KiB
Dropbox desktop and mobile screen for file sync and share `div.dwg-box > div.dwg-media > picture.dwg-box > img.dwg-media-image`	/warp/conversion/dropbox/warp/en-us/index/desktop-mobile-...	48.6 KiB	16.3 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: 352 ms

URL	Time Spent
db.tt/	352 ms
www.dropbox.com/	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

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 170 ms 783.8 KiB

URL	Transfer Size	Est Savings
/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_war...	523.1 KiB	271.6 KiB
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_dig...	134.3 KiB	129.0 KiB
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_tri...	110.0 KiB	99.0 KiB
/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist...	186.1 KiB	79.3 KiB
accounts.google.com/gsi/client	95.4 KiB	71.0 KiB
/static/metaserver/static/pithos/zoom_chat_client.bundle-...	74.4 KiB	55.6 KiB
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_fin...	82.2 KiB	28.3 KiB
/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist...	33.9 KiB	25.2 KiB
/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_cor...	33.8 KiB	24.7 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
Unattributable	1776897429.1 s	33 ms	0.0 ms
/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_war...	790 ms	277 ms	78 ms
www.dropbox.com/	666 ms	37 ms	9.7 ms
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_fin...	420 ms	337 ms	7.1 ms
/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_edi...	317 ms	292 ms	0.2 ms
/static/metaserver/static/js/alameda_bundle/alameda_bundl...	197 ms	156 ms	21 ms
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_src...	140 ms	104 ms	2.4 ms
assets.adobedtm.com/7c31e7b46b8e/5feae65e0b10/launch-9b21c433d0d6.min.js	108 ms	85 ms	17 ms
/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_rea...	105 ms	82 ms	5.5 ms
/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist...	91 ms	24 ms	31 ms
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_pap...	81 ms	68 ms	0.6 ms
/7c31e7b46b8e/5feae65e0b10/4a7579f9708e/RC5525b8317527424...	80 ms	79 ms	0.1 ms
/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist...	61 ms	48 ms	11 ms
/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist...	52 ms	52 ms	0.1 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Other	1776897429.5 s
Script Evaluation	2.1 s
Style & Layout	722 ms
Script Parsing & Compilation	338 ms
Parse HTML & CSS	96 ms
Garbage Collection	94 ms
Rendering	94 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

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 9.9 KiB

URL	Transfer Size	Est Savings
/static/metaserver/static/css/dig-components/components-v...	43.5 KiB	3.9 KiB
/static/metaserver/static/css/font_sharp_grotesk-vflwgPRU...	12.5 KiB	3.1 KiB
/static/metaserver/static/css/dig-components/foundations-...	30.6 KiB	2.9 KiB

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.

Estimated savings: 20 ms 52.0 KiB

URL	Transfer Size	Est Savings
/static/typescript/component_libraries/dwg-components/src...	39.8 KiB	39.8 KiB
/static/metaserver/static/css/font_sharp_grotesk-vflwgPRU...	12.2 KiB	12.2 KiB

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
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	5.3 MiB
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	1.7 MiB
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	1.3 MiB
/cms/content/dam/dropbox/warp/en-us/index/october-2025-la...	831.4 KiB
/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_war...	523.4 KiB
/static/atlas/privacy_consent/ccpa_iframe_bundle_amd/dist...	186.4 KiB
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_dig...	134.6 KiB
/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_tri...	110.3 KiB
www.dropbox.com/	105.7 KiB
accounts.google.com/gsi/client	96.1 KiB

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

●Layout shift culprits

●Optimize DOM size

●LCP breakdown

●LCP request discovery

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 38 user timings

●Avoid long main-thread tasks 10 long tasks found

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

●Network Requests

●Network Round Trip Times 10 ms

●Server Backend Latencies 230 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 250 ms

●Avoid large layout shifts 4 layout shifts found

○INP breakdown

○Avoid non-composited animations

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.

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 > iframe#ccpa-iframe `body > iframe#ccpa-iframe`

These are opportunities to improve keyboard navigation in your application.

○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.

●ARIA attributes are used as specified for the element's role

●`[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

●`<frame>` or `<iframe>` elements have a title

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●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.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

●`<video>` elements contain a `<track>` element with `[kind="captions"]`

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

○`[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

○ARIA IDs are unique

○No form fields have multiple labels

○`<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

○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

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Image elements do not have `[alt]` attributes that are redundant text.

○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.

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
Fledge	/static/atlas/warp/warp_page_edison_bundle_amd/dist/c_fin... line 1, col 66125

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
/static/atlas/warp/warp_page_edison_bundle_amd/dist/e_cor... line 1, col 60205	`[GSI_LOGGER]: FedCM get() rejects with NetworkError: Error retrieving a token. Error`
www.dropbox.com/	`Not signed in with the identity provider.`

●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

●Use a strong HSTS policy

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Ensure proper origin isolation with COOP

○Mitigate clickjacking with XFO or CSP

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 destination	Link Text
dash.dropbox.com/	Learn more
www.dropbox.com/features/cloud-storage	Learn more
www.dropbox.com/features/share/send-large-files	Learn more
www.dropbox.com/features/security	Learn more
www.dropbox.com/business/solutions/construction	Learn more
www.dropbox.com/business/solutions/media	Learn more
www.dropbox.com/business/solutions/technology	Learn more
www.dropbox.com/business/solutions/professional-services	Learn more
www.dropbox.com/business/solutions/manufacturing	Learn more
www.dropbox.com/education	Learn more

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

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`