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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

29

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

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:18.106 source:map[column:138000 line:1 type:source-location url:https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.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:1.543 source:map[column:161644 line:3 type:source-location url:https://www.washingtonpost.com/assembler/_next/static/chunks/9301-fdb71a1a1c24410f.js urlProvider:network]] map[reflowTime:16.563 source:map[column:129776 line:27 type:source-location url:https://www.washingtonpost.com/assembler/_next/static/chunks/pages/_app-d0be26829892b387.js urlProvider:network]] map[reflowTime:13.94 source:map[type:text value:[unattributed]]] map[reflowTime:0.093 source:map[column:24129 line:2 type:source-location url:https://c.amazon-adsystem.com/aax2/apstag.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...203.1 KiB155.1 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...152.4 KiB108.7 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...105.0 KiB74.9 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...122.7 KiB74.7 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...93.6 KiB66.8 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...90.2 KiB64.3 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...63.2 KiB30.5 KiB
An illustration in muted colors of George Washington holding a map. Behind him … figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...42.3 KiB30.2 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...42.1 KiB30.0 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...58.3 KiB28.1 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...57.2 KiB27.6 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...53.1 KiB25.6 KiB
figure.w-100 > div.dib > a.art-link > img.border-box figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...23.9 KiB17.0 KiB
An illustration in muted colors of George Washington holding a map. Behind him … figure.w-100 > div.dib > a.art-link > img.border-box
/wp-apps/imrs.php?src=https%3A%2F%2Farc-anglerfish-washpo...26.0 KiB12.5 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:103.625 label:Time to first byte subpart:timeToFirstByte] map[duration:3306.81 label:Element render delay subpart:elementRenderDelay]]
lhId: page-14-SPAN
nodeLabel: For this app, we and our processors store and/or access information on your dev…
path: 1,HTML,1,BODY,35,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,SPAN
selector: div.ot-sdk-row > div#onetrust-group-container > div#onetrust-policy > span.ot-b-addl-desc
snippet: <span class="ot-b-addl-desc">

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

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.

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.

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: 799 ms

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.

Estimated savings: 150 ms 47.2 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.

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
Script Evaluation8.3 s
Other1.2 s
Script Parsing & Compilation921 ms
Style & Layout782 ms
Parse HTML & CSS365 ms
Garbage Collection223 ms
Rendering190 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 reasonFailure type
The page has an unload handler in the main frame.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 2.4 KiB
URLTransfer SizeEst Savings
--sxs{--sxs:0 wpds-t-crrfKS wpds-dark.wpds-dark wpds-light} …34.2 KiB2.4 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 5.6 KiB

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

Layout shift culprits
Optimize DOM size
Modern HTTP
Render blocking requests
Optimize viewport for mobile
User Timing marks and measures 52 user timings
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 1 animated element found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 80 ms
Server Backend Latencies 220 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 30 ms
Avoid large layout shifts 10 layout shifts found
INP breakdown
LCP request discovery
87

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.

Names and labels

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > iframe body > iframe

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.card-top > figure.w-100 > div.dib > a.art-link div.card-top > figure.w-100 > div.dib > a.art-link
div.card-top > figure.w-100 > div.dib > a.art-link div.card-top > figure.w-100 > div.dib > a.art-link
div.card-top > figure.w-100 > div.dib > a.art-link div.card-top > figure.w-100 > div.dib > a.art-link
div.card-top > figure.w-100 > div.dib > a.art-link div.card-top > figure.w-100 > div.dib > a.art-link
div.card-top > figure.w-100 > div.dib > a.art-link div.card-top > figure.w-100 > div.dib > a.art-link
div.card-top > figure.w-100 > div.dib > a.art-link div.card-top > figure.w-100 > div.dib > a.art-link
div.card-top > figure.w-100 > div.dib > a.art-link div.card-top > figure.w-100 > div.dib > a.art-link
div.card-right > div.w-100 > div.dib > a.art-link div.card-right > div.w-100 > div.dib > a.art-link
div.card-right > div.w-100 > div.dib > a.art-link div.card-right > div.w-100 > div.dib > a.art-link
div.card-right > div.w-100 > div.dib > a.art-link div.card-right > div.w-100 > div.dib > a.art-link
div.card-right > div.w-100 > div.dib > a.art-link div.card-right > div.w-100 > div.dib > a.art-link
div.card-right > div.w-100 > div.dib > a.art-link div.card-right > div.w-100 > div.dib > a.art-link
footer.wpds-c-jHFhWE > div.wpds-c-eQbjSQ > div.wpds-c-Kzyvj > a.wpds-c-bEBODO footer.wpds-c-jHFhWE > div.wpds-c-eQbjSQ > div.wpds-c-Kzyvj > a.wpds-c-bEBODO

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.

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
Trending Exercise timing Commanders uniform Eric Swalwell Dog gardening Baby el… div > div.PJLV > div.wpds-c-bzYzZp > ul.wpds-c-qdpUL
WP Intelligence Ask The Post AI WP Creative Group Diversity & Inclusion Careers… div.wpds-c-dCLTmK > div#radix-:rb: > div.wpds-c-gsubXz > ul.wpds-c-iYXqXc
Trending Politics Elections Opinions National World Style Sports Business Clima… div.wpds-c-dCLTmK > div#radix-:rd: > div.wpds-c-gsubXz > ul.wpds-c-iYXqXc
WP Intelligence Enterprise Subscriptions Become a Subscriber Gift Subscriptions… div.wpds-c-dCLTmK > div#radix-:rf: > div.wpds-c-gsubXz > ul.wpds-c-iYXqXc
Contact the Newsroom Contact Customer Care Contact the Opinions Team Advertise … div.wpds-c-dCLTmK > div#radix-:rh: > div.wpds-c-gsubXz > ul.wpds-c-iYXqXc

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
WP Intelligence div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Ask The Post AI div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
WP Creative Group div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Diversity & Inclusion div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Careers div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Media & Community Relations div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Accessibility Statement div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Trending div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Politics div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Elections div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Opinions div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
National div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
World div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Style div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Sports div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Business div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Climate div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Well+Being div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
D.C., Md., & Va. div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Obituaries div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Weather div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Arts & Entertainment div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Recipes div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
WP Intelligence div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Enterprise Subscriptions div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Become a Subscriber div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Gift Subscriptions div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Mobile & Apps div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Newsletters & Alerts div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Washington Post Live div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Reprints & Permissions div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Post Store div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Books & E-Books div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Print Special Editions Store div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Today’s Paper div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Public Notices div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Contact the Newsroom div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Contact Customer Care div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Contact the Opinions Team div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Advertise div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Licensing & Syndication div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Request a Correction div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Send a News Tip div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Report a Vulnerability div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ
Download the Washington Post App div.wpds-c-gsubXz > ul.wpds-c-iYXqXc > span.wpds-c-PJLV > li.wpds-c-laJFlQ

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

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
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
`[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
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Background and foreground colors have a sufficient contrast ratio
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
No element has a `[tabindex]` value greater than 0
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
Elements with visible text labels have matching accessible names.
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
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
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.
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.
77

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 / WarningSource
Unload event listeners are deprecated and will be removed.
line 1, col 8843

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
Error updating the status via PrivacyAPI: TypeError: Cannot read properties of null (reading 'Dt') at s.updateStatus (https://www.washingtonpost.com/subscribe/privacy-fe-api/privacy-fe-api.min.js:1:5623)
Error updating the status via PrivacyAPI: TypeError: Cannot read properties of null (reading 'Dt') at s.updateStatus (https://www.washingtonpost.com/subscribe/privacy-fe-api/privacy-fe-api.min.js:1:5623)
Error updating the status via PrivacyAPI: TypeError: Cannot read properties of null (reading 'Dt') at s.updateStatus (https://www.washingtonpost.com/subscribe/privacy-fe-api/privacy-fe-api.min.js:1:5623)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at lg (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46435) at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:121150) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #418; visit https://reactjs.org/docs/error-decoder.html?invariant=418 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at ly (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:46889) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:100009 at oD (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:106229) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99177) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94030) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)
Error: Minified React error #423; visit https://reactjs.org/docs/error-decoder.html?invariant=423 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. at i (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:120819) at oO (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:99117) at https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98984 at oF (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:98991) at ox (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:95743) at oS (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:94298) at x (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:137528) at MessagePort.T (https://www.washingtonpost.com/assembler/_next/static/chunks/framework-c6ee5607585ef091.js:1:138058)

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
www.washingtonpost.com/zeus/main.js
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news.google.com/swg/js/v1/swg.jsnews.google.com/swg/js/v1/swg.js.map
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
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
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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