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· 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.

75

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.

RequestCache TTLTransfer Size
cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js1200.0 s259.2 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/af8...1800.0 s53.0 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/f90...1800.0 s51.2 KiB
/analytics.js/v1/KC3ITMkcWCrn2dZrMXlkjNQBaFSB9ilG/analyti...120.0 s28.9 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/b66...84600.0 s65.8 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/82d...84600.0 s65.1 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/072...84600.0 s64.3 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/3ac...84600.0 s59.1 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/0b2...84600.0 s56.0 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/e85...84600.0 s55.9 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/0ab...84600.0 s55.2 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/7f6...84600.0 s54.7 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/7bd...84600.0 s53.1 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/138...84600.0 s49.1 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/e02...84600.0 s45.3 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/a0f...84600.0 s42.5 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/af5...84600.0 s36.9 KiB
static.crunchyroll.com/analytics/cr-eec-8.10.1.js0.0 ms10.6 KiB
cdn.segment.com/next-integrations/actions/3962/1faa179dfb20d0a3f5a0.js0.0 ms9.2 KiB
/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/...14400.0 s12.9 KiB
/web/v3/config/ketch_crunchyroll/crunchyroll___web___prod...1200.0 s4.6 KiB
/next-integrations/actions/braze-cloud-plugins/c3dbe2dde9...0.0 ms2.5 KiB

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.

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
Crunchyroll promotional illustration div.cr-stacked-layout-content-block > section.cr-start-hero > picture.cr-image > img.cr-start-hero-image
/cr-acquisition/assets/img/start/hero/us-global/backgroun...1.4 MiB1.1 MiB
Seirei Gensouki: Spirit Chronicles - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/b66...65.4 KiB59.9 KiB
The Water Magician - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/82d...64.7 KiB59.2 KiB
I Was Reincarnated as the 7th Prince so I Can Take My Time Perfecting My Magica… div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/072...63.9 KiB58.4 KiB
Chillin’ in Another World with Level 2 Super Cheat Powers - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/3ac...58.7 KiB53.2 KiB
Kingdom - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/0b2...55.6 KiB50.1 KiB
Golden Kamuy - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/e85...55.5 KiB50.0 KiB
The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You - show … div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/0ab...54.8 KiB49.3 KiB
A Couple of Cuckoos - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/7f6...54.3 KiB48.8 KiB
Sakuna: Of Rice and Ruin - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/7bd...52.7 KiB47.2 KiB
The Apothecary Diaries - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/af8...52.6 KiB47.1 KiB
MF GHOST - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/f90...50.7 KiB45.2 KiB
DAN DA DAN - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/138...48.7 KiB43.2 KiB
Detective Conan - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/e02...44.9 KiB39.4 KiB
Theatre of Darkness: Yamishibai - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/a0f...42.1 KiB36.7 KiB
My Dress-Up Darling - show description div.content-image-figure-wrapper__figure-sizer--SH2-x > figure.content-image__figure--7vume > picture > img.progressive-image-base__fade--Nrn20
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/af5...36.5 KiB31.0 KiB

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

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.

URLTransfer SizeDuration
static.crunchyroll.com/analytics/cr-eec-8.10.1.js10.6 KiB223 ms

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: 265 ms
URLTime Spent
crunchyroll.com/265 ms
www.crunchyroll.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

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: 50 ms 98.2 KiB
URLTransfer SizeEst Savings
/cr-acquisition/ltr-styles-fdd41e81.d7f2a040a8f28efe9e09.css62.2 KiB60.0 KiB
22.1 KiB22.1 KiB
/cr-acquisition/ltr-styles-e39ec0de.afb5a07cb95be2c1490e.css19.2 KiB16.1 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.

Estimated savings: 180 ms 251.0 KiB
URLTransfer SizeEst Savings
cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js258.7 KiB163.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-PK7T4JG163.7 KiB87.5 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 6.2 KiB
URLTransfer SizeEst Savings
static.crunchyroll.com/cr-acquisition/index-19f9d112.141ba52bf0cf289251b2.js13.6 KiB6.2 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.

URLTransfer Size
/cr-acquisition/assets/img/start/hero/us-global/backgroun...1.4 MiB
cdn.ketchjs.com/ketchtag/stable/v2.12/ketch-sdk.js259.2 KiB
static.crunchyroll.com/cr-acquisition/assets/fonts/Lato/Lato-Heavy.woff2180.7 KiB
static.crunchyroll.com/cr-acquisition/assets/fonts/Lato/Lato-Semibold.woff2180.2 KiB
static.crunchyroll.com/cr-acquisition/assets/fonts/Lato/Lato-Medium.woff2178.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-PK7T4JG164.0 KiB
/cr-acquisition/assets/fonts/CrunchyrollAtyp/CrunchyrollA...68.4 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/b66...65.8 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/82d...65.1 KiB
/imgsrv/display/thumbnail/240x360/catalog/crunchyroll/072...64.3 KiB

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

●Max Potential First Input Delay 110 ms
●Layout shift culprits
●Optimize DOM size
●Font display
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●JavaScript execution time 0.4 s
●Minimizes main-thread work 1.0 s
●Avoid long main-thread tasks 5 long tasks found
●Image elements have explicit `width` and `height`
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 140 ms
●Server Backend Latencies 190 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 30 ms
○INP breakdown
○LCP request discovery
○User Timing marks and measures
○Avoid non-composited animations
○Avoid large layout shifts
84

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

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

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

Source: MDN Permissions-Policy

Failing Elements
Please be alert to potential phishing attempts. Crunchyroll will never ask for … div#root > div.cr-main-layout > div.erc-anonymous-consent > div.content-wrapper--MF5LS

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.

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
CONTINUE div.cr-main-layout > div.erc-anonymous-consent > div.content-wrapper--MF5LS > button.button--xqVd0

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Ad-free streaming div.carousel-scroller__track--43f0L > div.carousel-scroller__card--4Lrk- > div.cr-perks-section-card-perk > h4.text--gq6o-

These are opportunities to improve keyboard navigation in your application.

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
Browse New Browse Popular Browse All (A-Z) Browse Simulcasts Release Calendar M… div.footer-seo-wrapper > section.cr-footer-seo-section > div.section-wrapper > ul.section-list
Action Adventure Comedy Drama Fantasy Music Romance Sci-Fi Seinen Shojo Shonen … div.footer-seo-wrapper > section.cr-footer-seo-section > div.section-wrapper > ul.section-list
Apothecary Diaries Attack on Titan Blue Lock Demon Slayer Dragon Ball DAIMA Dra… div.footer-seo-wrapper > section.cr-footer-seo-section > div.section-wrapper > ul.section-list
English / English (US) Indonesian / Bahasa Indonesia German / Deutsch Spanish /… div.footer-seo-wrapper > section.cr-footer-seo-section > div.section-wrapper > ul.section-list
About Help Center Terms of Service Privacy Policy AdChoices Do Not Sell or Shar… div.footer-seo-wrapper > section.cr-footer-seo-section > div.section-wrapper > ul.section-list
Create Account Log In div.footer-seo-section-group > section.cr-footer-seo-section > div.section-wrapper > ul.section-list
YouTube Facebook X Instagram TikTok div.footer-seo-section-group > section.cr-footer-seo-section > div.section-wrapper > ul.section-list

These are opportunities to improve the experience of reading tabular or list data using 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

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
START FREE TRIAL header.cr-header > div.cr-horizontal-wrapper > div.header-controls > button.button--xqVd0
CONTINUE div.cr-main-layout > div.erc-anonymous-consent > div.content-wrapper--MF5LS > button.button--xqVd0
ENGLISH (US) div.footer-copyright-section > div.footer-language-select-wrapper > div.dropdown--cacSP > div.dropdown-trigger--P--FX
○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
●Form elements have associated labels
●`button`, `link`, and `menuitem` elements have accessible names
●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.
●Links have a discernible name
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●All heading elements contain content.
●Identical links have the same purpose.
○`[accesskey]` values are unique
○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
○`<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.
○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>`.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
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
SharedStorage
www.crunchyroll.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.
www.crunchyroll.com/cdn-cgi/challenge-platform/scripts/jsd/main.js
Fledge
www.crunchyroll.com/cdn-cgi/challenge-platform/scripts/jsd/main.js

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
www.crunchyroll.com/auth/v1/token
Failed to load resource: the server responded with a status of 400 ()
static.crunchyroll.com/cr-acquisition/assets/fonts/DMSans.woff2
Failed to load resource: the server responded with a status of 403 ()
www.crunchyroll.com/favicon.ico
Failed to load resource: the server responded with a status of 404 ()
www.crunchyroll.com/subs/v1/promotions
Failed to load resource: the server responded with a status of 404 ()
static.crunchyroll.com/cr-acquisition/index-1d1fa024.90beed1b7f6f9bee5931.js
Uncaught (in promise) Error: RUM is not initialized
●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 clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
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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