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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.

46

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
www.yamaha.com/en/images/main_image_wave03_sp.jpg0.0 ms449.2 KiB
www.yamaha.com/en/images/img_top07_sp.jpg0.0 ms364.1 KiB
www.yamaha.com/en/images/img_top08_sp.jpg0.0 ms318.2 KiB
www.yamaha.com/en/about/experience/images/img_music-connect.jpg0.0 ms298.0 KiB
www.yamaha.com/en/images/img_top09_sp.jpg0.0 ms270.2 KiB
/en/stories/for-our-future/spain-classband/images/bnr_spa...0.0 ms264.3 KiB
www.yamaha.com/en/images/img_top16.jpg0.0 ms258.8 KiB
/en/stories/environment/sustainable-use-of-wood/images/bn...0.0 ms234.8 KiB
www.yamaha.com/en/images/main_image_wave02_sp.jpg0.0 ms233.3 KiB
www.yamaha.com/en/images/img_top17.jpg0.0 ms193.9 KiB
www.yamaha.com/en/stories/images/img_sustainability-stories.jpg0.0 ms193.7 KiB
www.yamaha.com/en/images/main_image_wave01_sp.jpg0.0 ms182.0 KiB
www.yamaha.com/en/tech-design/images/img_technologies.jpg0.0 ms175.8 KiB
www.yamaha.com/en/stories/images/bnr_school_project.jpg0.0 ms163.5 KiB
www.yamaha.com/en/images/bnr_way-up.jpg?202506230.0 ms155.2 KiB
www.yamaha.com/en/stories/images/bnr_the-key.jpg0.0 ms147.9 KiB
www.yamaha.com/en/about/experience/images/img_vir.jpg0.0 ms117.9 KiB
www.yamaha.com/en/tech-design/images/img_insights.jpg0.0 ms109.6 KiB
www.yamaha.com/en/images/img_top18.jpg0.0 ms102.4 KiB
www.yamaha.com/en/images/bnr_wallpaper.jpg0.0 ms92.1 KiB
www.yamaha.com/en/images/img_top11.jpg0.0 ms74.9 KiB
www.yamaha.com/en/images/img_top13.jpg0.0 ms69.6 KiB
www.yamaha.com/en/images/img_top14.jpg0.0 ms57.4 KiB
www.yamaha.com/en/images/bnr_milan-design-week-2026.jpg0.0 ms49.0 KiB
www.yamaha.com/en/images/img_top15.jpg0.0 ms48.5 KiB
www.yamaha.com/_common2/js/swiper-bundle.min.js0.0 ms37.1 KiB
www.yamaha.com/en/images/img_top10.jpg0.0 ms31.4 KiB
www.yamaha.com/_common2/js/lib.js0.0 ms30.0 KiB
www.yamaha.com/en/images/img_top12.jpg0.0 ms28.1 KiB
www.yamaha.com/en/images/bnr_ymc.jpg0.0 ms27.9 KiB
www.yamaha.com/_common2/css/common.css0.0 ms15.9 KiB
www.yamaha.com/en/images/bnr_ymf.jpg0.0 ms13.7 KiB
www.yamaha.com/_common2/css/navigation.css0.0 ms7.9 KiB
s.go-mpulse.net/boomerang/JFXMF-KQXEG-XSHU9-FUT5F-HPPTL604800.0 s56.8 KiB
www.yamaha.com/_common2/js/common.js0.0 ms4.4 KiB
www.yamaha.com/_common2/css/swiper-bundle.min.css0.0 ms4.4 KiB
www.yamaha.com/_common2/images/logo_yamaha_waves.svg0.0 ms3.9 KiB
www.yamaha.com/_common2/images/logo_yamaha_waves_white.svg0.0 ms3.9 KiB
www.yamaha.com/_common2/images/icon_instagram.png0.0 ms3.7 KiB
www.yamaha.com/_common2/images/icon_linkedin.png0.0 ms2.8 KiB
www.yamaha.com/_common2/images/icon-navigation-search.svg0.0 ms1.0 KiB
www.yamaha.com/_common2/css/en/fonts.css0.0 ms1.0 KiB
www.yamaha.com/_common2/images/icon_facebook.svg0.0 ms913 B
www.yamaha.com/_common2/css/print.css0.0 ms878 B
www.yamaha.com/_common2/css/top.css0.0 ms746 B
www.yamaha.com/_common2/images/icon_youtube.svg0.0 ms724 B
www.yamaha.com/_common2/js/set-height.js0.0 ms697 B
www.yamaha.com/_common2/images/icon_arrow-m.svg0.0 ms682 B
www.yamaha.com/_common2/images/icon_arrow-m_white.svg0.0 ms671 B
www.yamaha.com/_common2/images/icon_blank-m.svg0.0 ms636 B
www.yamaha.com/_common2/js/top.js0.0 ms592 B
www.yamaha.com/_common2/images/icon_simple_arrow-left-l_white.svg0.0 ms591 B
www.yamaha.com/_common2/images/icon_simple_arrow-l_white.svg0.0 ms586 B
www.yamaha.com/_common2/images/icon_simple_arrow.svg0.0 ms571 B
www.yamaha.com/_common2/images/icon_slide_stop.svg0.0 ms488 B
www.yamaha.com/_common2/images/icon_slide_stop_violet.svg0.0 ms483 B
www.yamaha.com/_common2/images/icon_slide_start.svg0.0 ms456 B
www.yamaha.com/_common2/images/icon_slide_start_violet.svg0.0 ms453 B

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.

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
[Main visual] COMPOSE A BEAUTIFUL FUTURE TOGETHER WITH PEOPLE EVERYWHERE MAKE W… div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave03_sp.jpg448.6 KiB310.6 KiB
[Thumbnail] Sustainability Stories div.swiper-slide > a.link-group > figure.img-hover > img
/en/stories/for-our-future/spain-classband/images/bnr_spa...263.9 KiB238.5 KiB
[Image] Philosophy & Vision div.on-img-contents > a.link-group > picture.bg-image > img
www.yamaha.com/en/images/img_top07_sp.jpg363.6 KiB229.0 KiB
[Thumbnail] Sustainable Use of Wood div.swiper-slide > a.link-group > figure.img-hover > img
/en/stories/environment/sustainable-use-of-wood/images/bn...234.3 KiB208.9 KiB
[Thumbnail] Sustainability div.col_1-3 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/img_top16.jpg258.4 KiB202.1 KiB
[Image] About Us div.on-img-contents > a.link-group > picture.bg-image > img
www.yamaha.com/en/images/img_top08_sp.jpg317.8 KiB183.2 KiB
[Thumbnail] School Project div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/stories/images/bnr_school_project.jpg163.1 KiB137.6 KiB
[Thumbnail] Investor Relations div.col_1-3 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/img_top17.jpg193.5 KiB137.3 KiB
[Image] Technology & Design div.on-img-contents > a.link-group > picture.bg-image > img
www.yamaha.com/en/images/img_top09_sp.jpg269.7 KiB135.2 KiB
[Thumbnail] WAY UP div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_way-up.jpg?20250623154.8 KiB129.4 KiB
[Thumbnail] Where Utility Meets Aesthetic div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/stories/images/bnr_the-key.jpg147.4 KiB122.1 KiB
[Main visual] LIVE FOR MUSIC LIVE FOR THE MOMENT MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave02_sp.jpg232.9 KiB94.8 KiB
[Thumbnail] Yamaha Calendar div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_wallpaper.jpg91.8 KiB66.4 KiB
[Thumbnail] Recruitment div.col_1-3 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/img_top18.jpg102.0 KiB45.8 KiB
[Image] Audio div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top11.jpg74.6 KiB43.8 KiB
[Main visual] NEVER STOP EXPLORING EMBRACE THE JOY OF DISCOVERY MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave01_sp.jpg181.6 KiB43.5 KiB
[Image] Services div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top13.jpg69.2 KiB38.4 KiB
[Thumbnail] At the world’s largest design event, Milan Design Week 2026 (April … div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_milan-design-week-2026.jpg48.7 KiB28.3 KiB
[Image] For Business Users div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top14.jpg57.0 KiB26.2 KiB
[Thumbnail] Yamaha Motor Co., Ltd. div.col_1-4 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_ymc.jpg27.5 KiB20.9 KiB
[Image] Music Education div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top15.jpg48.2 KiB17.3 KiB
[Thumbnail] Yamaha Music Foundation div.col_1-4 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_ymf.jpg13.4 KiB6.8 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-22-IMG
nodeLabel: [Main visual] NEVER STOP EXPLORING EMBRACE THE JOY OF DISCOVERY MAKE WAVES
path: 1,HTML,1,BODY,12,MAIN,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,3,DIV,0,PICTURE,1,IMG
selector: div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
snippet: <img src="/en/images/main_image_wave01_sp.jpg" alt="[Main visual] NEVER STOP EXPLORING EMBRACE THE JOY OF DISCOVERY MAKE WAVES">

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
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.

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: 2.0 s

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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: 150 ms 3.8 KiB
URLTransfer SizeEst Savings
www.yamaha.com/_common2/css/common.css15.9 KiB3.8 KiB

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 150 ms 12.2 KiB
URLTransfer SizeEst Savings
www.yamaha.com/_common2/css/common.css15.6 KiB12.2 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 Evaluation1.6 s
Other693 ms
Style & Layout309 ms
Script Parsing & Compilation245 ms
Rendering102 ms
Garbage Collection55 ms
Parse HTML & CSS45 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 a sub frame.Actionable

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
[Thumbnail] Where Utility Meets Aesthetic div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/stories/images/bnr_the-key.jpg
[Thumbnail] School Project div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/stories/images/bnr_school_project.jpg
[Thumbnail] School Project div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/stories/images/bnr_school_project.jpg
[Thumbnail] Sustainable Use of Wood div.swiper-slide > a.link-group > figure.img-hover > img
/en/stories/environment/sustainable-use-of-wood/images/bn...
[Thumbnail] Yamaha Calendar div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_wallpaper.jpg
[Thumbnail] At the world’s largest design event, Milan Design Week 2026 (April … div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_milan-design-week-2026.jpg
[Thumbnail] WAY UP div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_way-up.jpg?20250623
[Thumbnail] Sustainability Stories div.swiper-slide > a.link-group > figure.img-hover > img
/en/stories/for-our-future/spain-classband/images/bnr_spa...
[Thumbnail] Sustainable Use of Wood div.swiper-slide > a.link-group > figure.img-hover > img
/en/stories/environment/sustainable-use-of-wood/images/bn...
[Thumbnail] Yamaha Calendar div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_wallpaper.jpg
[Thumbnail] At the world’s largest design event, Milan Design Week 2026 (April … div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_milan-design-week-2026.jpg
[Thumbnail] WAY UP div.swiper-slide > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_way-up.jpg?20250623
[Thumbnail] Sustainability Stories div.swiper-slide > a.link-group > figure.img-hover > img
/en/stories/for-our-future/spain-classband/images/bnr_spa...
[Thumbnail] Sustainability div.col_1-3 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/img_top16.jpg
[Thumbnail] Investor Relations div.col_1-3 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/img_top17.jpg
[Thumbnail] Recruitment div.col_1-3 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/img_top18.jpg
[Main visual] NEVER STOP EXPLORING EMBRACE THE JOY OF DISCOVERY MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave01_sp.jpg
[Main visual] LIVE FOR MUSIC LIVE FOR THE MOMENT MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave02_sp.jpg
[Main visual] COMPOSE A BEAUTIFUL FUTURE TOGETHER WITH PEOPLE EVERYWHERE MAKE W… div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave03_sp.jpg
[Main visual] NEVER STOP EXPLORING EMBRACE THE JOY OF DISCOVERY MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave01_sp.jpg
[Main visual] LIVE FOR MUSIC LIVE FOR THE MOMENT MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave02_sp.jpg
[Main visual] COMPOSE A BEAUTIFUL FUTURE TOGETHER WITH PEOPLE EVERYWHERE MAKE W… div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave03_sp.jpg
[Main visual] NEVER STOP EXPLORING EMBRACE THE JOY OF DISCOVERY MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave01_sp.jpg
[Main visual] LIVE FOR MUSIC LIVE FOR THE MOMENT MAKE WAVES div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave02_sp.jpg
[Main visual] COMPOSE A BEAUTIFUL FUTURE TOGETHER WITH PEOPLE EVERYWHERE MAKE W… div#swiper-wrapper-f75f76c151a376a2 > div.swiper-slide > picture.bg-image > img
www.yamaha.com/en/images/main_image_wave03_sp.jpg
[Image] Other Products div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top12.jpg
[Image] Music Education div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top15.jpg
[Image] Musical Instruments div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top10.jpg
[Image] Audio div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top11.jpg
[Image] Services div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top13.jpg
[Image] For Business Users div > a > figure.img-hover > img
www.yamaha.com/en/images/img_top14.jpg
YAMAHA div.header-box > div.header-block_logo > a > img
www.yamaha.com/_common2/images/logo_yamaha_waves.svg
YAMAHA div.footer-copyright > div.footer-logo > a > img
www.yamaha.com/_common2/images/logo_yamaha_waves_white.svg
[Thumbnail] Yamaha Music Foundation div.col_1-4 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_ymf.jpg
[Thumbnail] Yamaha Motor Co., Ltd. div.col_1-4 > a.link-group > figure.img-hover > img
www.yamaha.com/en/images/bnr_ymc.jpg
YouTube div.contents-row > div.col-block > a > img
www.yamaha.com/_common2/images/icon_youtube.svg
LinkedIn div.contents-row > div.col-block > a > img
www.yamaha.com/_common2/images/icon_linkedin.png
Facebook div.contents-row > div.col-block > a > img
www.yamaha.com/_common2/images/icon_facebook.svg
Instagram div.contents-row > div.col-block > a > img
www.yamaha.com/_common2/images/icon_instagram.png

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

●Layout shift culprits
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify JavaScript
●User Timing marks and measures 5 user timings
●Avoid long main-thread tasks 11 long tasks found
●Network Requests
●Network Round Trip Times 50 ms
●Server Backend Latencies 260 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 250 ms
●Avoid large layout shifts 1 layout shift found
○INP breakdown
○Avoid non-composited animations
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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Site Search div.header-block > div.header-box > div.navigation-search > p

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
header#header > div.header-block > div.header-box > button#slidemenu-btn header#header > div.header-block > div.header-box > button#slidemenu-btn

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
header#header > div.header-block > div.header-box > button#slidemenu-btn header#header > div.header-block > div.header-box > button#slidemenu-btn

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.

Navigation

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
Yamaha Music Foundation div.col-block > div.col_1-4 > a.link-group > h5.text-title

These are opportunities to improve keyboard navigation in your application.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]`s are contained by their required parent element
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●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.
●`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 have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[accesskey]` values are unique
○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
○Form elements have associated labels
○Links are distinguishable without relying on color.
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<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.
○Elements with visible text labels have matching accessible names.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
62

Best Practices

Trust and Safety

All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
www.yamaha.com/Allowed

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.
●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 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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