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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.

26

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.accounts.nintendo.com/account/js/common.js?t=17767585190.0 ms1.4 MiB
www.nintendo.com/jp/top/img/smtm_260310_s.png?unoptimized=true30.0 s1.2 MiB
/jp/top/img/switch2_poko-a-pokemon_s.webp?unoptimized=tru...30.0 s806.2 KiB
www.nintendo.com/jp/top/img/switch2_splatoon_raiders_s.webp?unoptimized=true30.0 s763.3 KiB
www.nintendo.com/jp/common/font/NotoSansJP-Bold.woff230.0 s500.8 KiB
/jp/top/img/switch_tomodachicollection_260326_s.webp?unop...30.0 s496.7 KiB
www.nintendo.com/jp/common/font/NotoSansJP-Regular.woff230.0 s493.3 KiB
www.nintendo.com/jp/top/img/today-bnr--sp.png?260310&unoptimized=true30.0 s223.3 KiB
www.nintendo.com/jp/common/v3/js/shared.js30.0 s156.2 KiB
/jp/common/v3/img/gheader-itemlist-img-character-sp-01_02...30.0 s102.2 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
www.nintendo.com/jp/common/v3/js/svgpack.js30.0 s76.1 KiB
www.nintendo.com/jp/common/v3/css/shared.css30.0 s71.2 KiB
www.nintendo.com/jp/top/img/pikmin-close-to-you_sp.png?unoptimized=true30.0 s65.1 KiB
/jp/common/v3/img/gheader-itemlist-img-software-switch2-0...30.0 s45.8 KiB
www.nintendo.com/jp/common/v3/img/gfoter-app-banner01-sp.png30.0 s44.5 KiB
/image/2026/04/10075551635537/400/2f91da50d06845e793edd94...0.0 ms43.6 KiB
/image/2026/04/15020720313952/400/086d6fe58872486593aa04a...0.0 ms43.3 KiB
/image/2026/04/03061909216898/400/6af0d9cf5d834783ba5ba4e...0.0 ms42.7 KiB
/jp/common/v3/img/gheader-itemlist-img-software-switch2-0...30.0 s42.6 KiB
/image/2025/06/10044726112533/400/d98876dc158e4f8fbb52306...0.0 ms41.9 KiB
/jp/common/v3/img/gheader-itemlist-img-software-switch2-0...30.0 s41.0 KiB
/image/2026/04/01045719286502/400/08b858a25c3b4a3d94b18c5...0.0 ms40.6 KiB
alps.cdn.nintendo.net/v1/js/welcome.js0.0 ms40.5 KiB
/image/2026/04/13044901583347/400/8189e7faf6c84dbb960992c...0.0 ms39.8 KiB
/signals/config/129174394450063?v=2.9.303&r=stable&domain...1200.0 s44.8 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-sp-08_02.png30.0 s36.9 KiB
/image/2026/04/20015033657148/400/f0aede97ca944ba69844239...0.0 ms35.2 KiB
/image/2026/04/14043146184824/400/50b3c9463620487084bbccf...0.0 ms34.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-sp-06_02.png30.0 s32.1 KiB
/image/2026/04/14015700282116/400/86c3d401d31f4e33ad8104a...0.0 ms31.9 KiB
www.nintendo.com/jp/top/img/pickup_my-mario.png30.0 s31.2 KiB
/image/2026/04/10090437372189/400/e7ef27e10c714ab38599299...0.0 ms30.5 KiB
/image/2026/03/17092340966732/400/a91707f5b7bb47cea349c05...0.0 ms30.0 KiB
cdn.accounts.nintendo.com/jssdk/nintendo-jssdk-client.3.0.2.js0.0 ms28.2 KiB
www.nintendo.com/jp/top/img/pickup_mario40th.png30.0 s27.7 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-08_02.jpg30.0 s24.7 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-08_02.jpg30.0 s24.7 KiB
www.nintendo.com/jp/common/v3/img/gheader-bnr-nintendoworld.png30.0 s24.2 KiB
www.nintendo.com/jp/common/v3/js/head.js30.0 s23.6 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-sp-04_02.png30.0 s23.6 KiB
www.nintendo.com/jp/top/img/super-mario-galaxy_thumb.webp30.0 s22.4 KiB
/jp/common/v3/img/gheader-itemlist-img-software-switch-01...30.0 s21.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-sp-02_02.png30.0 s20.9 KiB
www.nintendo.com/jp/common/v3/img/gfooter-bnr-nintendoworld.jpg30.0 s20.8 KiB
/jp/common/v3/img/gheader-itemlist-img-software-switch-03...30.0 s20.2 KiB
/jp/common/v3/img/gheader-itemlist-img-hardware-07.png?un...30.0 s20.0 KiB
/jp/common/v3/img/gheader-itemlist-img-software-switch-02...30.0 s19.2 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-06_02.jpg30.0 s19.0 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-06_02.jpg30.0 s18.8 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-sp-07_02.png30.0 s18.0 KiB
www.nintendo.com/jp/common/v3/img/gheader-bnr-pzbi.png30.0 s16.8 KiB
www.nintendo.com/jp/common/v3/img/gheader-bnr-nintendotokyo.png30.0 s16.7 KiB
www.nintendo.com/jp/top/img/pickup_direct_260306.webp30.0 s16.7 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-04_02.jpg30.0 s15.0 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-04_02.jpg30.0 s14.9 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-sp-03_02.png30.0 s14.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-01_02.jpg30.0 s14.2 KiB
cdn.accounts.nintendo.com/jssdk/nintendo-jssdk-appsframe.3.0.2.js0.0 ms14.0 KiB
cdn.accounts.nintendo.com/jssdk/nintendo-jssdk-xdframe.3.0.2.js0.0 ms14.0 KiB
www.nintendo.com/jp/common/v3/img/gfooter-bnr-nintendotokyo.jpg30.0 s13.4 KiB
cdn.accounts.nintendo.com/jssdk/nintendo-jssdk-opframe.3.0.2.js0.0 ms12.7 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-02_02.jpg30.0 s12.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-02_02.jpg30.0 s12.2 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-05.png30.0 s12.1 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-03_02.jpg30.0 s11.9 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-03_02.jpg30.0 s11.9 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-07_02.jpg30.0 s11.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-07_02.jpg30.0 s11.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-support-01-sp.png30.0 s10.7 KiB
www.nintendo.com/jp/data/common/jsonp/breadcrumb.js?callback=ncommon_breadcrumb30.0 s10.3 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-01.png30.0 s10.0 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-txt-support-01-sp.svg30.0 s9.3 KiB
cdn.accounts.nintendo.com/account/css/sp/main.css?t=17767585190.0 ms9.3 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-05.jpg30.0 s9.3 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-02.png30.0 s9.2 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-txt-support-02-sp.svg30.0 s8.8 KiB
/jp/common/v3/img/gheader-itemlist-img-hardware-250308-01...30.0 s8.6 KiB
www.nintendo.com/jp/common/v3/img/gheader-bnr-mariomovie.png30.0 s8.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-01_02.jpg30.0 s8.1 KiB
www.nintendo.com/jp/common/v3/img/gfooter-bnr-museum.jpg30.0 s8.0 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-sp-05_02.png30.0 s7.9 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-03.png30.0 s7.5 KiB
www.nintendo.com/jp/top/js/local.js?22010330.0 s7.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-support-02-sp.png30.0 s6.9 KiB
www.nintendo.com/jp/top/css/local.css30.0 s6.6 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-11.svg30.0 s6.5 KiB
www.nintendo.com/jp/common/v3/img/NintendoBoxLogo.png30.0 s6.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-05_02.jpg30.0 s5.8 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-character-tab-05_02.jpg30.0 s5.8 KiB
/jp/common/v3/img/gheader-itemlist-img-hardware-250308-02...30.0 s5.7 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-04.png30.0 s4.8 KiB
www.nintendo.com/jp/common/v3/img/gfooter-sns-icon-instagram.png30.0 s4.3 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-06.png30.0 s4.2 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-250308-01-sp.svg30.0 s4.1 KiB
rsv.dga.jp/s/nintendos/search_tool_n3.js0.0 ms3.8 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-250308-02-sp.svg30.0 s3.7 KiB
www.nintendo.com/jp/top/img/switch_tomodachicollection_thumb.webp30.0 s3.6 KiB
www.nintendo.com/jp/common/font/YakuHanJPs-Bold.woff230.0 s3.5 KiB
www.nintendo.com/jp/common/font/YakuHanJPs-Regular.woff230.0 s3.4 KiB
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-point.gif30.0 s3.3 KiB
www.nintendo.com/jp/common/v3/js/td-nort-pro.js30.0 s3.2 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-parents.png30.0 s3.0 KiB
/account/js/pages/authorize-web-message/sp.js?t=17767585190.0 ms2.9 KiB
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-online.gif30.0 s2.8 KiB
www.nintendo.com/jp/top/img/pikmin_garden_thumb.png30.0 s2.5 KiB
www.nintendo.com/jp/top/img/switch2_splatoon_raiders_thumb.webp30.0 s2.1 KiB
www.nintendo.com/jp/common/v3/img/gfooter-sns-icon-youtube.png30.0 s2.1 KiB
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-nintendostore.gif30.0 s2.0 KiB
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-store.gif30.0 s1.9 KiB
alps.cdn.nintendo.net/gtm/v1/js/gtm_login.js0.0 ms1.4 KiB
www.nintendo.com/jp/top/img/switch2_poko-a-pokemon_thumb.webp30.0 s1.4 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-support-04.svg30.0 s1.2 KiB
www.nintendo.com/jp/common/v3/css/reset.css30.0 s1.1 KiB
/account/css/sp/pages/authorize-web-message/all.css?t=177...0.0 ms1.1 KiB
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-app.svg30.0 s877 B
rsv.dga.jp/s/nintendos/new_ac.css0.0 ms867 B
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-support-03.svg30.0 s692 B
www.nintendo.com/jp/common/v3/img/logo_x.svg30.0 s683 B
/jp/data/common/jsonp/search_config.js?callback=ncommon_s...30.0 s658 B
/tr/?id=129174394450063&ev=PageView&dl=https%3A%2F%2Fwww....0.0 ms19 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 B
/a?id=GTM-NVPD62&v=3&t=t&pid=1000026627&gtm=45He64k1v7160...0.0 ms11 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.

URLEst Savings
fonts.gstatic.com/s/roboto/v51/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff245 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:59.961 source:map[column:27160 line:3 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.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:39.883 source:map[column:57109 line:2 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.js urlProvider:network]] map[reflowTime:29.233 source:map[column:270391 line:3 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.js urlProvider:network]] map[reflowTime:19.632 source:map[column:34096 line:2 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.js urlProvider:network]] map[reflowTime:60.015 source:map[column:34287 line:2 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.js urlProvider:network]] map[reflowTime:0.302 source:map[column:19065 line:2 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.js urlProvider:network]] map[reflowTime:0.251 source:map[column:21240 line:2 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.js urlProvider:network]] map[reflowTime:1.506 source:map[column:21132 line:2 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.js urlProvider:network]] map[reflowTime:34.963 source:map[type:text value:[unattributed]]] map[reflowTime:1.286 source:map[column:21338 line:2 type:source-location url:https://www.nintendo.com/jp/common/v3/js/shared.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
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
www.nintendo.com/jp/top/img/smtm_260310_s.png?unoptimized=true1.2 MiB1.1 MiB
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
/jp/top/img/switch2_poko-a-pokemon_s.webp?unoptimized=tru...805.3 KiB713.8 KiB
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
www.nintendo.com/jp/top/img/switch2_splatoon_raiders_s.webp?unoptimized=true762.5 KiB670.9 KiB
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
/jp/top/img/switch_tomodachicollection_260326_s.webp?unop...496.1 KiB404.5 KiB
毎日届く、ニンテンドー。Nintendo Today! div.nc3-l-innerWidth > a#local-first-bnr > div.local-first-bnr__img > img.nc3-js-image
www.nintendo.com/jp/top/img/today-bnr--sp.png?260310&unoptimized=true222.9 KiB194.2 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/10075551635537/400/2f91da50d06845e793edd94...43.4 KiB33.8 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/15020720313952/400/086d6fe58872486593aa04a...43.2 KiB33.5 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/01045719286502/400/08b858a25c3b4a3d94b18c5...40.5 KiB30.8 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/13044901583347/400/8189e7faf6c84dbb960992c...39.7 KiB30.0 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/20015033657148/400/f0aede97ca944ba69844239...35.0 KiB25.4 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/14043146184824/400/50b3c9463620487084bbccf...34.3 KiB24.6 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/14015700282116/400/86c3d401d31f4e33ad8104a...31.8 KiB22.1 KiB
ザ・スーパーマリオギャラクシー・ムービー div#local-kv_top_sub_rule3 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/super-mario-galaxy_thumb.webp21.9 KiB21.3 KiB
a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
/image/2026/04/10090437372189/400/e7ef27e10c714ab38599299...30.2 KiB20.6 KiB
マイマリオ（My MARIO） a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
www.nintendo.com/jp/top/img/pickup_my-mario.png30.6 KiB17.7 KiB
スーパーマリオブラザーズ40周年 a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
www.nintendo.com/jp/top/img/pickup_mario40th.png27.2 KiB15.7 KiB
Nintendo World div.nc3-c-gfooter-topBanner > a.nc3-c-gfooter-topBanner__banner > div.nc3-c-gfooter-topBanner__bannerImage > img
www.nintendo.com/jp/common/v3/img/gfooter-bnr-nintendoworld.jpg20.1 KiB11.1 KiB
ザ・スーパーマリオギャラクシー・ムービー Direct 2026.3.6 a > div.nc3-c-articleCard__thumb > div.nc3-c-articleCard__thumbImage > img
www.nintendo.com/jp/top/img/pickup_direct_260306.webp16.1 KiB9.3 KiB
Nintendo div.nc3-l-innerWidth--tabSp > h1.nc3-c-gheader-dfHeader__logo > a > img
www.nintendo.com/jp/common/v3/img/NintendoBoxLogo.png5.8 KiB4.4 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:924.88 label:Time to first byte subpart:timeToFirstByte] map[duration:2044.8 label:Resource load delay subpart:resourceLoadDelay] map[duration:742.33 label:Resource load duration subpart:resourceLoadDuration] map[duration:50.131 label:Element render delay subpart:elementRenderDelay]]
lhId: page-2-A
nodeLabel: div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
path: 1,HTML,1,BODY,9,DIV,0,DIV,0,DIV,0,DIV,0,A
selector: div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
snippet: <a href="/jp/games/switch2/aadla/index.html" onclick="NCOMMON.tdCallbacks.push(function (td) {td.trackClick(''); });" class="local-kv__switcherContent nc3-js-image is-moduleready" data-pc="top/img/switch2_splatoon_raiders_l.webp" data-sp="top/img/switch2_splatoon_raiders_s.webp?unoptimized=true" top="" img="" switch2_splatoon_raiders_s.webp?unoptimized="true" data-ismovie="false" data-inited-image="1" style="background-image: url(&quot;top/img/switch2_splatoon_raiders_s.webp?unoptimized…&quot;);" data-loaded-image="1">

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-2-A
nodeLabel: div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
path: 1,HTML,1,BODY,9,DIV,0,DIV,0,DIV,0,DIV,0,A
selector: div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
snippet: <a href="/jp/games/switch2/aadla/index.html" onclick="NCOMMON.tdCallbacks.push(function (td) {td.trackClick(''); });" class="local-kv__switcherContent nc3-js-image is-moduleready" data-pc="top/img/switch2_splatoon_raiders_l.webp" data-sp="top/img/switch2_splatoon_raiders_s.webp?unoptimized=true" top="" img="" switch2_splatoon_raiders_s.webp?unoptimized="true" data-ismovie="false" data-inited-image="1" style="background-image: url(&quot;top/img/switch2_splatoon_raiders_s.webp?unoptimized…&quot;);" data-loaded-image="1">

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

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
www.nintendo.com/jp/top/css/local.css6.6 KiB301 ms
www.nintendo.com/jp/common/v3/js/shared.js156.2 KiB903 ms
www.nintendo.com/jp/top/js/local.js?2201037.4 KiB
www.nintendo.com/jp/common/v3/css/reset.css1.1 KiB
alps.cdn.nintendo.net/gtm/v1/js/gtm_login.js1.4 KiB974 ms

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

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: 2.4 s
URLTime Spent
nintendo.co.jp/972 ms
www.nintendo.co.jp/1.0 s
www.nintendo.co.jp/index.html407 ms
www.nintendo.com/jp/index.html0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused 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 59.6 KiB
URLTransfer SizeEst Savings
www.nintendo.com/jp/common/v3/css/shared.css70.7 KiB59.6 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: 4.4 s 832.7 KiB
URLTransfer SizeEst Savings
cdn.accounts.nintendo.com/account/js/common.js?t=17767585191.2 MiB536.0 KiB
www.googletagmanager.com/gtag/destination?id=AW-870380277&cx=c&gtm=4e64k1133.9 KiB66.8 KiB
www.googletagmanager.com/gtag/js?id=G-128BBZFV9V&cx=c&gtm=4e64k1166.9 KiB66.0 KiB
www.nintendo.com/jp/common/v3/js/shared.js154.7 KiB65.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-NVPD62192.7 KiB65.1 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB33.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
www.nintendo.com/jp/common/v3/js/shared.js4.4 s1.4 s69 ms
www.nintendo.com/jp/index.html1.7 s8.7 ms1.7 ms
Unattributable1.1 s32 ms0.0 ms
www.googletagmanager.com/gtm.js?id=GTM-NVPD62954 ms732 ms94 ms
cdn.accounts.nintendo.com/account/js/common.js?t=1776758519410 ms2.2 ms407 ms
/account/js/pages/authorize-web-message/sp.js?t=1776758519349 ms346 ms1.0 ms
www.googletagmanager.com/gtag/js?id=G-128BBZFV9V&cx=c&gtm=4e64k1305 ms258 ms44 ms
www.nintendo.com/jp/common/v3/js/head.js167 ms154 ms7.4 ms
www.googletagmanager.com/gtag/destination?id=AW-870380277&cx=c&gtm=4e64k1161 ms127 ms33 ms
/signals/config/129174394450063?v=2.9.303&r=stable&domain...152 ms134 ms17 ms
connect.facebook.net/en_US/fbevents.js136 ms102 ms34 ms
cdn.accounts.nintendo.com/jssdk/nintendo-jssdk-client.3.0.2.js136 ms126 ms7.2 ms
www.nintendo.com/jp/top/js/local.js?22010392 ms67 ms5.7 ms
cdn.accounts.nintendo.com/jssdk/nintendo-jssdk-xdframe.3.0.2.js69 ms59 ms6.2 ms
alps.cdn.nintendo.net/v1/js/welcome.js67 ms55 ms11 ms
www.nintendo.com/jp/common/v3/js/svgpack.js55 ms13 ms22 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation3.7 s
Other3.1 s
Style & Layout1.8 s
Rendering879 ms
Script Parsing & Compilation779 ms
Parse HTML & CSS143 ms
Garbage Collection104 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

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
cdn.accounts.nintendo.com/account/js/common.js?t=17767585191.4 MiB
www.nintendo.com/jp/top/img/smtm_260310_s.png?unoptimized=true1.2 MiB
/jp/top/img/switch2_poko-a-pokemon_s.webp?unoptimized=tru...806.2 KiB
www.nintendo.com/jp/top/img/switch2_splatoon_raiders_s.webp?unoptimized=true763.3 KiB
www.nintendo.com/jp/common/font/NotoSansJP-Bold.woff2500.8 KiB
/jp/top/img/switch_tomodachicollection_260326_s.webp?unop...496.7 KiB
www.nintendo.com/jp/common/font/NotoSansJP-Regular.woff2493.3 KiB
/nintendo_soft/search.json?opt_sshow=1&xopt_ssitu[]=sales...405.9 KiB
www.nintendo.com/jp/top/img/today-bnr--sp.png?260310&unoptimized=true223.3 KiB
www.googletagmanager.com/gtm.js?id=GTM-NVPD62193.1 KiB

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
毎日届く、ニンテンドー。Nintendo Today! div.nc3-l-innerWidth > a#local-first-bnr > div.local-first-bnr__img > img.nc3-js-image
www.nintendo.com/jp/top/img/today-bnr--sp.png?260310&unoptimized=true
ザ・スーパーマリオギャラクシー・ムービー div#local-kv_top_sub_rule3 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/super-mario-galaxy_thumb.webp
ザ・スーパーマリオギャラクシー・ムービー div#local-kv_top_sub_rule3 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/super-mario-galaxy_thumb.webp
Nintendo Today! div.nc3-c-gfooter-app__innerWidth > a.nc3-c-gfooter-app__banner > picture > img
www.nintendo.com/jp/common/v3/img/gfoter-app-banner01-sp.png
Nintendo Switch 2 div.nc3-c-gheader-hard-panels > a.nc3-c-gheader-hard-panel > picture > img.nc3-c-gheader-hard-panel-text
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-250308-01-sp.svg
div.nc3-c-gheader-hard-panels > a.nc3-c-gheader-hard-panel > picture > img div.nc3-c-gheader-hard-panels > a.nc3-c-gheader-hard-panel > picture > img
/jp/common/v3/img/gheader-itemlist-img-hardware-250308-01...
THE SUPER MARIO GALAXY. MOVIE li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-bnr-mariomovie.png
Nintendo World li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-bnr-nintendoworld.png
Nintendo Tokyo/Osaka/Kyoto/Fukuoka li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-bnr-nintendotokyo.png
pyon-zuba-basha-iya- li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-bnr-pzbi.png
Nintendo Switch div.nc3-c-gheader-hard-panels > a.nc3-c-gheader-hard-panel > picture > img.nc3-c-gheader-hard-panel-text
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-250308-02-sp.svg
div.nc3-c-gheader-hard-panels > a.nc3-c-gheader-hard-panel > picture > img div.nc3-c-gheader-hard-panels > a.nc3-c-gheader-hard-panel > picture > img
/jp/common/v3/img/gheader-itemlist-img-hardware-250308-02...
a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-01.png
a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img.is-visible a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img.is-visible
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-05.jpg
Nintendo World div.nc3-c-gfooter-topBanner > a.nc3-c-gfooter-topBanner__banner > div.nc3-c-gfooter-topBanner__bannerImage > img
www.nintendo.com/jp/common/v3/img/gfooter-bnr-nintendoworld.jpg
Nintendo Tokyo/Osaka/Kyoto/Fukuoka div.nc3-c-gfooter-topBanner > a.nc3-c-gfooter-topBanner__banner > div.nc3-c-gfooter-topBanner__bannerImage > img
www.nintendo.com/jp/common/v3/img/gfooter-bnr-nintendotokyo.jpg
ニンテンドーミュージアム div.nc3-c-gfooter-topBanner > a.nc3-c-gfooter-topBanner__banner > div.nc3-c-gfooter-topBanner__bannerImage > img
www.nintendo.com/jp/common/v3/img/gfooter-bnr-museum.jpg
マイマリオ（MY MARIO） li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-11.svg
Nintendo Switch 2 サポート a > p.nc3-c-gheader-itemList__thumb > picture > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-txt-support-01-sp.svg
Nintendo Switch サポート a > p.nc3-c-gheader-itemList__thumb > picture > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-txt-support-02-sp.svg
amiibo li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-05.png
a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-03.png
a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img a.nc3-c-gheader-software-mobile > ul.nc3-c-gheader-software-mobile-list > li.nc3-c-gheader-software-mobile-list__item > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-mobile-04.png
ニンテンドーサウンドクロック Alarmo li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-hardware-06.png
li.nc3-c-gheader-software-others-list__item > a > div.nc3-c-gheader-software-others__thumb > img li.nc3-c-gheader-software-others-list__item > a > div.nc3-c-gheader-software-others__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-app.svg
ul.nc3-c-gheader-software-switch2-list > li.nc3-c-gheader-software-switch2-list__item > picture > img ul.nc3-c-gheader-software-switch2-list > li.nc3-c-gheader-software-switch2-list__item > picture > img
/jp/common/v3/img/gheader-itemlist-img-software-switch2-0...
ul.nc3-c-gheader-software-switch2-list > li.nc3-c-gheader-software-switch2-list__item > picture > img ul.nc3-c-gheader-software-switch2-list > li.nc3-c-gheader-software-switch2-list__item > picture > img
/jp/common/v3/img/gheader-itemlist-img-software-switch2-0...
ul.nc3-c-gheader-software-switch2-list > li.nc3-c-gheader-software-switch2-list__item > picture > img ul.nc3-c-gheader-software-switch2-list > li.nc3-c-gheader-software-switch2-list__item > picture > img
/jp/common/v3/img/gheader-itemlist-img-software-switch2-0...
My Nintendo Store li.nc3-c-gfooter-service__item > a > div.nc3-c-gfooter-service__icon > img
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-store.gif
My Nintendo Point li.nc3-c-gfooter-service__item > a > div.nc3-c-gfooter-service__icon > img
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-point.gif
Nintendo Store li.nc3-c-gfooter-service__item > a > div.nc3-c-gfooter-service__icon > img
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-nintendostore.gif
Nintendo Switch Online li.nc3-c-gfooter-service__item > a > div.nc3-c-gfooter-service__icon > img
www.nintendo.com/jp/common/v3/img/gfooter-service-icon-online.gif
おしゃべりフラワー li.nc3-c-gheader-itemList__item > a > p.nc3-c-gheader-itemList__thumb > img
/jp/common/v3/img/gheader-itemlist-img-hardware-07.png?un...
ul.nc3-c-gheader-software-switch-list > li.nc3-c-gheader-software-switch-list__item > picture > img ul.nc3-c-gheader-software-switch-list > li.nc3-c-gheader-software-switch-list__item > picture > img
/jp/common/v3/img/gheader-itemlist-img-software-switch-01...
ul.nc3-c-gheader-software-switch-list > li.nc3-c-gheader-software-switch-list__item > picture > img ul.nc3-c-gheader-software-switch-list > li.nc3-c-gheader-software-switch-list__item > picture > img
/jp/common/v3/img/gheader-itemlist-img-software-switch-02...
ul.nc3-c-gheader-software-switch-list > li.nc3-c-gheader-software-switch-list__item > picture > img ul.nc3-c-gheader-software-switch-list > li.nc3-c-gheader-software-switch-list__item > picture > img
/jp/common/v3/img/gheader-itemlist-img-software-switch-03...
li.nc3-c-gheader-software-others-list__item > a > div.nc3-c-gheader-software-others__thumb > img li.nc3-c-gheader-software-others-list__item > a > div.nc3-c-gheader-software-others__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-software-parents.png
Pikmin Close to you div#local-kv_top_sub_rule5 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/pikmin_garden_thumb.png
Pikmin Close to you div#local-kv_top_sub_rule5 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/pikmin_garden_thumb.png
スプラトゥーン レイダース div#local-kv_top_sub_rule1 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/switch2_splatoon_raiders_thumb.webp
スプラトゥーン レイダース div#local-kv_top_sub_rule1 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/switch2_splatoon_raiders_thumb.webp
トモダチコレクション わくわく生活 div#local-kv_top_sub_rule2 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/switch_tomodachicollection_thumb.webp
トモダチコレクション わくわく生活 div#local-kv_top_sub_rule2 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/switch_tomodachicollection_thumb.webp
ぽこ あ ポケモン div#local-kv_top_sub_rule4 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/switch2_poko-a-pokemon_thumb.webp
ぽこ あ ポケモン div#local-kv_top_sub_rule4 > a.local-kv__navBox > div.local-kv__navBox__pic > img
www.nintendo.com/jp/top/img/switch2_poko-a-pokemon_thumb.webp
Nintendo Support 03 a > div.nc3-c-gheader-itemList__row-sp > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-support-03.svg
Nintendo Switch Online サポート a > div.nc3-c-gheader-itemList__row-sp > p.nc3-c-gheader-itemList__thumb > img
www.nintendo.com/jp/common/v3/img/gheader-itemlist-img-support-04.svg

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
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 7 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 2 animated elements found
●Network Requests
●Network Round Trip Times 250 ms
●Server Backend Latencies 1,550 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 220 ms
●Avoid large layout shifts 15 layout shifts found
○INP breakdown
66

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

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
form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__left form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__left
form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__right form.nc3-as-box > div.nc3-c-search > div.nc3-c-search__recommend > button.nc3-js-carouselNav__right

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#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent div#local-kv__inner > div.local-kv__container > div.nc3-js-switcher__content > a.local-kv__switcherContent
div#local-schedule__container > div#local-schedule__item > div.nc3-c-softCard > a div#local-schedule__container > div#local-schedule__item > div.nc3-c-softCard > a
div.nc3-c-gfooter-breadcrumb > div.l-footer-topic-path-inner > div.footer-topic-path-back-to-top > a.footer-topic-path-back-to-top-btn div.nc3-c-gfooter-breadcrumb > div.l-footer-topic-path-inner > div.footer-topic-path-back-to-top > a.footer-topic-path-back-to-top-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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
2026.4.17 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.16 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.16 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.16 div.nc3-c-articleCard > a > div.nc3-c-articleCard__sub > div.nc3-c-articleCard__dateAndPrice
2026.4.21 ul#local-whatsnew > li.local-new__row > a.local-new__link > span.local-new__date
公式サイト li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
採用 li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
インタビュー li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
その他 li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
その他 li.local-new__row > a.local-new__link > div.local-new__badgeWrapper > span.local-new__badge
お客様へのお知らせ div.nc3-l-innerWidth > div.local-announcement__inner > p.local-announcement__headline > span
任天堂公式ソーシャルメディアアカウント footer#nc3-c-gfooter > div.nc3-c-gfooter-container > div.nc3-c-gfooter-sns > div.nc3-c-gfooter-sns__headline
会員向けオンラインストア li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText
ポイントサービス li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText
スマートフォン向けアプリ li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText
有料オンラインサービス li.nc3-c-gfooter-service__item > a > p.nc3-c-gfooter-service__text > span.nc3-c-gfooter-service__smallText

These are opportunities to improve the legibility of your content.

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

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.loader-type-default html.loader-type-default

These items highlight common accessibility best practices.

○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>`
●Image elements have `[alt]` attributes
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●Touch targets have sufficient size and spacing.
●Heading elements appear in a sequentially-descending order
●Image elements do not have `[alt]` attributes that are redundant text.
●Identical links have the same purpose.
○`[accesskey]` values are unique
○`[aria-*]` attributes match their roles
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA attributes are used as specified for the element's role
○Deprecated ARIA roles were not used
○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 use only permitted ARIA attributes
○`[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
○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
○`[aria-*]` attributes have valid values
○`[aria-*]` attributes are valid and not misspelled
○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.
○No element has a `[tabindex]` value greater than 0
○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
○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.
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.
alps.cdn.nintendo.net/v1/js/welcome.js line 106, col 20105
AttributionReporting
connect.facebook.net/en_US/fbevents.js line 279, col 769

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
/static/jssdk/eshopframe.3.0.2.html
Failed to load resource: the server responded with a status of 403 ()
/connect/1.0.0/authorize?client_id=e56201e414c97a10&state...
Failed to load resource: the server responded with a status of 403 (Forbidden)
www.nintendo.com/jp/common/v3/js/shared.js line 3, col 123843
SecurityError: Failed to read a named property 'dispatchEvent' from 'Window': Blocked a frame with origin "https://www.nintendo.com" from accessing a cross-origin frame. at i.<anonymous> (https://www.nintendo.com/jp/common/v3/js/shared.js:4:123844) at Array.forEach (<anonymous>) at i.<anonymous> (https://www.nintendo.com/jp/common/v3/js/shared.js:4:123821) at Array.forEach (<anonymous>) at i.each (https://www.nintendo.com/jp/common/v3/js/shared.js:4:123710) at i.eacharg (https://www.nintendo.com/jp/common/v3/js/shared.js:4:123784) at i.trigger (https://www.nintendo.com/jp/common/v3/js/shared.js:4:128326) at https://www.nintendo.com/jp/top/js/local.js?220103:1:10431
www.nintendo.com/jp/top/js/local.js?220103 line 1, col 12168
TypeError: Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node'. at https://www.nintendo.com/jp/top/js/local.js?220103:2:12169 at ILaC.e.a (https://www.nintendo.com/jp/common/v3/js/shared.js:2:33695) at OZf9.e.a [as forEach] (https://www.nintendo.com/jp/common/v3/js/shared.js:3:14097) at https://www.nintendo.com/jp/top/js/local.js?220103:2:11637 at https://www.nintendo.com/jp/top/js/local.js?220103:2:12260
www.nintendo.com/jp/top/js/local.js?220103 line 1, col 9632
TypeError: Failed to execute 'appendChild' on 'Node': parameter 1 is not of type 'Node'. at https://www.nintendo.com/jp/top/js/local.js?220103:2:9633 at ILaC.e.a (https://www.nintendo.com/jp/common/v3/js/shared.js:2:33695) at OZf9.e.a [as forEach] (https://www.nintendo.com/jp/common/v3/js/shared.js:3:14097) at https://www.nintendo.com/jp/top/js/local.js?220103:2:9000 at https://www.nintendo.com/jp/top/js/local.js?220103:2:9738

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.

URL
www.nintendo.com/jp/common/v3/js/shared.js
cdn.accounts.nintendo.com/account/js/common.js?t=1776758519
●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
○Redirects HTTP traffic to HTTPS
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.

Crawling and Indexing

If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Line #ContentError
4DaumWebMasterTool: 32aa5c28d33b91d5b7ca65e51ab5af74e84941e2c30d294caa1a3dc55aea1191:/KZk3GCODdcSqsR4mp1dtQ==Unknown directive

To appear in search results, crawlers need access to your app.

○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
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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