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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

96

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:39.29 source:map[type:text value:[unattributed]]]]

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.
description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=334&quality=85&resize_to=fill&src=https%3A%2F%2F...42.7 KiB31.5 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=334&quality=85&resize_to=fill&src=https%3A%2F%2F...30.7 KiB19.6 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=500&quality=85&resize_to=fill&src=https%3A%2F%2F...70.4 KiB16.3 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=334&quality=85&resize_to=fill&src=https%3A%2F%2F...27.3 KiB16.1 KiB
div.fresnel-container > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.fresnel-container > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=297&quality=85&resize_to=fill&src=https%3A%2F%2F...24.5 KiB14.6 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...16.7 KiB10.2 KiB
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?height=720&quality=85&resize_to=fill&src=https%3A%2F%2F...85.4 KiB6.9 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...10.7 KiB4.2 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...10.7 KiB4.2 KiB
div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy
/?quality=85&resize_to=width&src=https%3A%2F%2Fd32dm0rphc...10.7 KiB4.2 KiB

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

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.

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

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 250 ms
URLTime Spent
artsy.net/250 ms
www.artsy.net/0.0 ms
Max Potential First Input Delay 130 ms
Layout shift culprits
Optimize DOM size
Font display
LCP breakdown
LCP request discovery
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Time to Interactive 0.9 s
Minify CSS
Minify JavaScript
Reduce unused CSS
Avoids enormous network payloads Total size was 1,135 KiB
User Timing marks and measures 1 user timing
JavaScript execution time 0.9 s
Minimizes main-thread work 1.6 s
Avoid long main-thread tasks 2 long tasks found
Image elements have explicit `width` and `height`
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 20 ms
Server Backend Latencies 180 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 20 ms
INP breakdown
Avoid non-composited animations
Avoid large layout shifts
76

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

Each ARIA `role` supports a specific subset of `aria-*` attributes. Mismatching these invalidates the `aria-*` attributes. Learn how to match ARIA attributes to their roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Curators’ Picks div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Follow Artsy on WeChat div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy

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

Names and labels

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.fresnel-container > div > div.Box-hCNGxy > button.Clickable-jywEcT div.fresnel-container > div > div.Box-hCNGxy > button.Clickable-jywEcT
div.fresnel-container > div > div.Box-hCNGxy > button.Clickable-jywEcT div.fresnel-container > div > div.Box-hCNGxy > button.Clickable-jywEcT

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy

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.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT > a.RouterLink__RouterUnawareLink-sc-49240801-1 div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT > a.RouterLink__RouterUnawareLink-sc-49240801-1
div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT > a.RouterLink__RouterUnawareLink-sc-49240801-1 div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT > a.RouterLink__RouterUnawareLink-sc-49240801-1
div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT > a.RouterLink__RouterUnawareLink-sc-49240801-1 div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT > a.RouterLink__RouterUnawareLink-sc-49240801-1

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.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
head > meta head > meta

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Save div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT
Theme div.Box-hCNGxy > div.Box-hCNGxy > div.Box-hCNGxy > button.Clickable-jywEcT

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
France-Lise McGurn, 90s mirror, 2023. Margot Samel Discover and Buy Art That Mo… li.Box-hCNGxy > div.Box-hCNGxy > div.fresnel-container > a.RouterLink__RouterAwareLink-sc-49240801-0
Aiko Sato (佐藤藍子) A Quiet Room, 2026 Kyoto Art Gallery US$1,288 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Neon Mary The Pause of the Game, Yellow, Blue, Grey, Mint, Green, Teal, White, … div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Timi O 30.5x45 cm - Révérence, 2026 Artseeker Gallery US$300 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Aiko Sato (佐藤藍子) Appearance, 2024 Kyoto Art Gallery US$900 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Minyoung Kim Dandelions, 2023 Taymour Grahne Projects £550 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Clément Bataille Station 7 — La deuxième chute (portrait de Jordan), 2026 DS Ga… div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Raelis Vasquez Horizons, 2023 Bode €19,000–€24,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Tuan Vu Catching Lights, 2025 Patel Brown US$18,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Ruben Einsmann La Féira I, 2025 PLAN X €6,000–€6,500 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Holland Cunningham Joe's Pheasant, 2024 Voltz Clarke US$1,700 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Samira Abbassy The Hand that Writes my Fate, 2025 Taymour Grahne Projects US$14… div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Evelina Reiter Liebe Grüße aus New York, 2026 galerie burster €1,500 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Alexandria Tarver nights, 96, 2025 NINO MIER GALLERY US$5,500–US$7,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Takumi Saito familiar place, 2025 GALLERY MoMo US$1,200 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Sophie Ullrich Appeler des fantômes, 2025 Galerie Droste €5,250 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Mary Royall Wilgis Ashland Place, 4:57 pm, 2026 Uprise Art US$2,300 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Karel Dicker Too Many Choices, 2026 NINO MIER GALLERY US$5,000–US$6,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Joanne Greenbaum Untitled, 2016 NINO MIER GALLERY US$7,500–US$9,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Amy Lincoln Spiral Galaxy Study with Trees (Blue #3), 2025 Taymour Grahne Proje… div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
Tim Sandow On a date with you, 2026 Galerie Droste €14,000 div.Box-hCNGxy > ul.Box-hCNGxy > li.Box-hCNGxy > a.RouterLink__RouterAwareLink-sc-49240801-0
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-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
Form elements have associated labels
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
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Heading elements appear in a sequentially-descending order
Skip links are focusable.
Document has a main landmark.
Deprecated ARIA roles were not used
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 the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
The page contains a heading, skip link, or landmark region
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Select elements have associated label elements.
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.
Image elements do not have `[alt]` attributes that are redundant text.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
81

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
SharedStorage
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
Fledge
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 browser errors logged to the console
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
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
92

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

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy a.RouterLink__RouterAwareLink-sc-49240801-0 > div.Box-hCNGxy > div.Box-hCNGxy > img.Box-hCNGxy

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 have descriptive text
Links are crawlable
robots.txt is valid
Document has a valid `hreflang`
Document has a valid `rel=canonical`

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