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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.

62

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.tv-asahi.co.jp/event/renew/contents/0408/images/dPrIBfx2nX.png0.0 ms14.0 MiB
www.tv-asahi.co.jp/event/renew/contents/0396/images/ttmJYfyphn.jpg0.0 ms2.2 MiB
www.tv-asahi.co.jp/Top16/cms/douga/1194.png0.0 ms433.0 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/04.jpg0.0 ms417.8 KiB
www.tv-asahi.co.jp/Top16/cms/douga/1237.jpg0.0 ms324.0 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/02.jpg0.0 ms305.1 KiB
www.tv-asahi.co.jp/Top16/cms/douga/1238.jpg0.0 ms263.2 KiB
www.tv-asahi.co.jp/Top24/assets/index.js0.0 ms205.5 KiB
shop.tv-asahi.co.jp/images/product/927706/001/927706_001_01.jpg3600.0 s220.3 KiB
/data/image/product/scenario/000011/000011751/928107_001_...3600.0 s203.9 KiB
www.tv-asahi.co.jp/Top16/cms/douga/1036.jpg0.0 ms162.6 KiB
/data/image/product/scenario/000011/000011754/9J0120_001_...3600.0 s191.2 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/01.jpg0.0 ms132.4 KiB
www.tv-asahi.co.jp/reborn/poster.jpg0.0 ms120.1 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/05.jpg0.0 ms119.4 KiB
post.tv-asahi.co.jp/wp-content/uploads/2026/04/2-1-5.jpg0.0 ms102.4 KiB
/data/image/product/scenario/000011/000011756/9J0122_001_...3600.0 s124.4 KiB
www.tv-asahi.co.jp/kamaigachi/poster.jpg0.0 ms97.9 KiB
post.tv-asahi.co.jp/wp-content/uploads/2026/04/kodoku0423_01.jpg0.0 ms96.8 KiB
post.tv-asahi.co.jp/wp-content/uploads/2026/04/tetsuko0422_1.jpg0.0 ms95.6 KiB
www.tv-asahi.co.jp/miracle9/poster.jpg0.0 ms94.3 KiB
www.tv-asahi.co.jp/borderless/poster.jpg0.0 ms93.2 KiB
www.tv-asahi.co.jp/tamikoi/poster.jpg0.0 ms91.2 KiB
www.tv-asahi.co.jp/asameshi/poster.jpg0.0 ms88.9 KiB
www.tv-asahi.co.jp/Top24/images/top_telasa/0069/images/WHdywYOYyv.jpg0.0 ms87.0 KiB
post.tv-asahi.co.jp/wp-content/uploads/2026/04/1-1-5.jpg0.0 ms79.8 KiB
post.tv-asahi.co.jp/wp-content/uploads/2026/04/making_1.jpg0.0 ms79.0 KiB
www.tv-asahi.co.jp/garibenv/poster.jpg0.0 ms76.4 KiB
www.tv-asahi.co.jp/mikaiketsu03/poster.jpg0.0 ms74.6 KiB
www.tv-asahi.co.jp/Top24/images/top_telasa/0069/images/N9LYWHxv69.jpg0.0 ms74.2 KiB
www.tv-asahi.co.jp/Top16/cms/banner/00244/01.png0.0 ms74.1 KiB
www.tv-asahi.co.jp/Top24/images/announcer/0015/images/L0v5VeHMaK.jpg0.0 ms64.9 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/06.jpg0.0 ms62.5 KiB
www.tv-asahi.co.jp/yomeisareo/poster.jpg0.0 ms57.9 KiB
news.tv-asahi.co.jp/articles_img/900188995_640.jpg0.0 ms57.7 KiB
www.tv-asahi.co.jp/Top24/images/announcer/0009/images/iK0rMlfFmG.jpg0.0 ms57.6 KiB
www.tv-asahi.co.jp/drama_error/poster.jpg0.0 ms56.3 KiB
www.tv-asahi.co.jp/Top24/images/announcer/0055/images/4ZqcSdemzk.jpg0.0 ms55.7 KiB
www.tv-asahi.co.jp/Top24/images/info/0005/images/wHw07NbmcM.jpg0.0 ms51.4 KiB
www.tv-asahi.co.jp/Top24/images/top_telasa/0069/images/6qwFGrNSFJ.jpg0.0 ms49.8 KiB
www.tv-asahi.co.jp/Top24/images/announcer/0034/images/GZrUEDwjSR.jpg0.0 ms49.4 KiB
www.tv-asahi.co.jp/Top24/images/announcer/0046/images/jZ5lhPz8gM.jpg0.0 ms48.9 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/03.jpg0.0 ms42.1 KiB
www.tv-asahi.co.jp/Top24/assets/index.css0.0 ms42.1 KiB
www.tv-asahi.co.jp/drama-daisakusen/poster.jpg0.0 ms39.4 KiB
news.tv-asahi.co.jp/articles_img/000500524_640.jpg0.0 ms26.4 KiB
news.tv-asahi.co.jp/articles_img/000500535_640.jpg0.0 ms24.8 KiB
www.tv-asahi.co.jp/Top24/images/media/0001/images/izdxeYLV0k.jpg0.0 ms24.3 KiB
www.tv-asahi.co.jp/Top24/images/media/0001/images/gVvME9TTiU.jpg0.0 ms22.7 KiB
www.tv-asahi.co.jp/Top24/images/announcer/0022/images/GHnWT6IycA.jpg0.0 ms21.0 KiB
statics.tver.jp/images/content/thumbnail/episode/small/ep29owum3k.jpg?v=20604800.0 s164.9 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
statics.tver.jp/images/content/thumbnail/episode/small/epkuoag6n9.jpg?v=12604800.0 s155.8 KiB
www.tv-asahi.co.jp/Top24/images/media/0001/images/to2tvrx6SQ.jpg0.0 ms14.4 KiB
statics.tver.jp/images/content/thumbnail/episode/small/ep9rbkqri1.jpg?v=17604800.0 s144.3 KiB
statics.tver.jp/images/content/thumbnail/episode/small/epbufv2hwl.jpg?v=15604800.0 s139.3 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js600.0 s11.8 KiB
www.tv-asahi.co.jp/commons/1/images/footer_banners_tvdata.jpg0.0 ms10.4 KiB
www.tv-asahi.co.jp/Top24/images/media/0001/images/EWmP1xhqMX.jpg0.0 ms10.0 KiB
www.tv-asahi.co.jp/Top24/assets/icons/teleasa_douga.svg0.0 ms9.8 KiB
www.tv-asahi.co.jp/Top24/assets/images/tvasahi.svg0.0 ms9.8 KiB
www.tv-asahi.co.jp/Top24/assets/icons/instagram.svg0.0 ms8.9 KiB
statics.tver.jp/images/content/thumbnail/episode/small/ep1p996gdr.jpg?v=13604800.0 s82.7 KiB
www.tv-asahi.co.jp/commons/1/images/footer_banners_ihoubokumetsu.png0.0 ms8.2 KiB
i.ytimg.com/vi/SltxX7g_Ls4/mqdefault.jpg7200.0 s10.5 KiB
i.ytimg.com/vi/cZAjBjGJCGY/mqdefault.jpg7200.0 s10.2 KiB
www.tv-asahi.co.jp/commons/1/images/footer_banners_saiyo.png0.0 ms7.6 KiB
i.ytimg.com/vi/Vf0Bv0o_5d4/mqdefault.jpg7200.0 s9.7 KiB
i.ytimg.com/vi/AA8_o4DtCro/mqdefault.jpg7200.0 s9.0 KiB
i.ytimg.com/vi/2d91vbjrDV8/mqdefault.jpg7200.0 s9.0 KiB
www.tv-asahi.co.jp/Top24/assets/images/bs_asahi.png0.0 ms6.4 KiB
www.tv-asahi.co.jp/mps/bigdata/luid/ssl_tools.js0.0 ms6.3 KiB
www.tv-asahi.co.jp/Top24/assets/images/ch2.png0.0 ms5.4 KiB
www.tv-asahi.co.jp/commons/1/images/footer_banners_SDGs.png0.0 ms5.4 KiB
www.tv-asahi.co.jp/Top24/assets/images/ch1.png0.0 ms5.1 KiB
www.tv-asahi.co.jp/mps/bigdata/luid/ssl_tools_f.js0.0 ms4.2 KiB
www.tv-asahi.co.jp/mps/bigdata/luid/tvasahi-tools.js0.0 ms3.7 KiB
www.tv-asahi.co.jp/Top24/assets/icons/abema.svg0.0 ms3.6 KiB
www.tv-asahi.co.jp/mps/bigdata/luid/optout.js0.0 ms2.7 KiB
www.tv-asahi.co.jp/Top24/assets/icons/line.svg0.0 ms2.5 KiB
www.tv-asahi.co.jp/mps/bigdata/luid/get_luid.js0.0 ms2.5 KiB
www.tv-asahi.co.jp/Top24/assets/icons/tver.svg0.0 ms1.8 KiB
www.tv-asahi.co.jp/mps/bigdata/luid/opt_init.js0.0 ms1.3 KiB
www.tv-asahi.co.jp/Top24/assets/icons/telasa.svg0.0 ms1.0 KiB
www.tv-asahi.co.jp/Top24/assets/icons/youtube.svg0.0 ms1013 B
www.tv-asahi.co.jp/Top24/assets/icons/x.svg0.0 ms835 B
www.tv-asahi.co.jp/mps/bigdata/luid/optout_migration.js0.0 ms364 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.

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:223.336 source:map[column:1869 line:25 type:source-location url:https://www.tv-asahi.co.jp/Top24/assets/index.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:221.589 source:map[column:24803 line:51 type:source-location url:https://www.tv-asahi.co.jp/Top24/assets/index.js urlProvider:network]] map[reflowTime:113.67 source:map[column:5834 line:51 type:source-location url:https://www.tv-asahi.co.jp/Top24/assets/index.js urlProvider:network]] map[reflowTime:0.327 source:map[column:17896 line:51 type:source-location url:https://www.tv-asahi.co.jp/Top24/assets/index.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
ロックアンセム EX div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img.tile__horizontally__image
www.tv-asahi.co.jp/event/renew/contents/0396/images/ttmJYfyphn.jpg2.2 MiB2.2 MiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
www.tv-asahi.co.jp/Top16/cms/douga/1194.png432.6 KiB424.4 KiB
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/04.jpg417.4 KiB333.0 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
www.tv-asahi.co.jp/Top16/cms/douga/1237.jpg323.6 KiB315.5 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
www.tv-asahi.co.jp/Top16/cms/douga/1238.jpg263.0 KiB254.8 KiB
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/02.jpg304.8 KiB220.4 KiB
夫が寝たあとに みんなの短歌 div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img.tile__horizontally__image
shop.tv-asahi.co.jp/images/product/927706/001/927706_001_01.jpg219.5 KiB216.8 KiB
タミ恋 文鳥さんマスコット div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img.tile__horizontally__image
/data/image/product/scenario/000011/000011751/928107_001_...203.1 KiB200.4 KiB
宮舘涼太『タミ恋』時沢エータ ドラマコレクションカードセット div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img.tile__horizontally__image
/data/image/product/scenario/000011/000011754/9J0120_001_...190.4 KiB187.8 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
statics.tver.jp/images/content/thumbnail/episode/small/ep29owum3k.jpg?v=20164.0 KiB158.9 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
www.tv-asahi.co.jp/Top16/cms/douga/1036.jpg162.3 KiB154.2 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
statics.tver.jp/images/content/thumbnail/episode/small/epkuoag6n9.jpg?v=12154.9 KiB149.9 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
statics.tver.jp/images/content/thumbnail/episode/small/ep9rbkqri1.jpg?v=17143.4 KiB138.4 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
statics.tver.jp/images/content/thumbnail/episode/small/epbufv2hwl.jpg?v=15138.4 KiB133.4 KiB
宮舘涼太『タミ恋』時沢エータ アクリルスタンド div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img.tile__horizontally__image
/data/image/product/scenario/000011/000011756/9J0122_001_...123.7 KiB121.0 KiB
リボーン 〜最後のヒーロー〜 li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/reborn/poster.jpg119.9 KiB111.4 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
post.tv-asahi.co.jp/wp-content/uploads/2026/04/2-1-5.jpg102.2 KiB97.1 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
post.tv-asahi.co.jp/wp-content/uploads/2026/04/kodoku0423_01.jpg96.5 KiB91.5 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
post.tv-asahi.co.jp/wp-content/uploads/2026/04/tetsuko0422_1.jpg95.4 KiB89.5 KiB
かまいガチ li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/kamaigachi/poster.jpg97.7 KiB89.2 KiB
くりぃむクイズ ミラクル9 li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/miracle9/poster.jpg94.1 KiB85.6 KiB
ボーダレス〜広域移動捜査隊〜 li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/borderless/poster.jpg92.9 KiB84.5 KiB
ターミネーターと恋しちゃったら li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/tamikoi/poster.jpg91.0 KiB82.6 KiB
朝メシまで。 li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/asameshi/poster.jpg88.7 KiB80.2 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
statics.tver.jp/images/content/thumbnail/episode/small/ep1p996gdr.jpg?v=1381.9 KiB76.8 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
post.tv-asahi.co.jp/wp-content/uploads/2026/04/1-1-5.jpg79.6 KiB74.5 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
post.tv-asahi.co.jp/wp-content/uploads/2026/04/making_1.jpg78.8 KiB73.8 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
www.tv-asahi.co.jp/Top24/images/top_telasa/0069/images/WHdywYOYyv.jpg86.9 KiB72.0 KiB
ガリベンチャーV li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/garibenv/poster.jpg76.2 KiB67.7 KiB
TOKYO_DREAM_PARK_開業記念_有明春祭り div.banners__container > div.banners__slide > a.banners__item__container > img
www.tv-asahi.co.jp/Top16/cms/banner/00244/01.png73.9 KiB67.1 KiB
未解決の女 警視庁文書捜査官 Season３ li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/mikaiketsu03/poster.jpg74.4 KiB65.9 KiB
斎藤ちはる div.announcers__wrapper > div.announcers__container > a.announcer__item > img
www.tv-asahi.co.jp/Top24/images/announcer/0015/images/L0v5VeHMaK.jpg64.7 KiB61.4 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
www.tv-asahi.co.jp/Top24/images/top_telasa/0069/images/N9LYWHxv69.jpg74.0 KiB59.2 KiB
角澤照治 div.announcers__wrapper > div.announcers__container > a.announcer__item > img
www.tv-asahi.co.jp/Top24/images/announcer/0009/images/iK0rMlfFmG.jpg57.4 KiB54.1 KiB
森川夕貴 div.announcers__wrapper > div.announcers__container > a.announcer__item > img
www.tv-asahi.co.jp/Top24/images/announcer/0055/images/4ZqcSdemzk.jpg55.5 KiB52.2 KiB
余命３ヶ月のサレ夫 li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/yomeisareo/poster.jpg57.7 KiB49.2 KiB
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/01.jpg132.2 KiB47.8 KiB
エラー li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/drama_error/poster.jpg56.1 KiB47.6 KiB
寺川俊平 div.announcers__wrapper > div.announcers__container > a.announcer__item > img
www.tv-asahi.co.jp/Top24/images/announcer/0034/images/GZrUEDwjSR.jpg49.2 KiB45.9 KiB
布施宏倖 div.announcers__wrapper > div.announcers__container > a.announcer__item > img
www.tv-asahi.co.jp/Top24/images/announcer/0046/images/jZ5lhPz8gM.jpg48.7 KiB45.4 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
news.tv-asahi.co.jp/articles_img/900188995_640.jpg57.4 KiB42.6 KiB
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/05.jpg119.2 KiB34.8 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
www.tv-asahi.co.jp/Top24/images/top_telasa/0069/images/6qwFGrNSFJ.jpg49.6 KiB34.7 KiB
ドラドラ大作戦 li.shows__slide > a.shows__item__link > div.image-protection > img.shows__image
www.tv-asahi.co.jp/drama-daisakusen/poster.jpg39.2 KiB30.7 KiB
清水俊輔 div.announcers__wrapper > div.announcers__container > a.announcer__item > img
www.tv-asahi.co.jp/Top24/images/announcer/0022/images/GHnWT6IycA.jpg20.8 KiB17.6 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
news.tv-asahi.co.jp/articles_img/000500524_640.jpg26.2 KiB15.8 KiB
div.card__list > a.card > div.image-protection > img.card__image div.card__list > a.card > div.image-protection > img.card__image
news.tv-asahi.co.jp/articles_img/000500535_640.jpg24.7 KiB14.8 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
i.ytimg.com/vi/SltxX7g_Ls4/mqdefault.jpg10.5 KiB5.4 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
i.ytimg.com/vi/cZAjBjGJCGY/mqdefault.jpg9.8 KiB4.8 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
i.ytimg.com/vi/Vf0Bv0o_5d4/mqdefault.jpg9.6 KiB4.6 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
i.ytimg.com/vi/AA8_o4DtCro/mqdefault.jpg8.9 KiB4.1 KiB
div.card__list > a.external-link > div.image-protection > img.card__image div.card__list > a.external-link > div.image-protection > img.card__image
i.ytimg.com/vi/2d91vbjrDV8/mqdefault.jpg8.9 KiB4.0 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-36-IMG
nodeLabel: div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
path: 1,HTML,1,BODY,0,DIV,2,SECTION,0,DIV,2,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,IMG
selector: div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
snippet: <img class="ichioshi__image" src="/Top16/cms/push/03723/01.jpg" alt="" decoding="async">

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
www.tv-asahi.co.jp/Top24/assets/index.css42.1 KiB82 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: 903 ms
URLTime Spent
tv-asahi.co.jp/903 ms
www.tv-asahi.co.jp/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

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 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: 40 ms 458.0 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtag/js?id=G-DJWW7JPFSS&cx=c&gtm=4e64k0h1169.0 KiB70.8 KiB
www.googletagmanager.com/gtag/js?id=G-DK0DVKPCR6&cx=c&gtm=4e64k0h1176.1 KiB69.9 KiB
www.googletagmanager.com/gtag/js?id=G-GFX8N57Z5R&cx=c&gtm=4e64k0h1151.3 KiB66.6 KiB
www.googletagmanager.com/gtag/js?id=G-1MF0KVKVN1&cx=c&gtm=4e64k0h1143.2 KiB65.4 KiB
www.tv-asahi.co.jp/Top24/assets/index.js204.8 KiB65.1 KiB
www.googletagmanager.com/gtag/js?id=G-EWDQYCBMEL&cx=c&gtm=4e64k0h1144.0 KiB64.1 KiB
www.googletagmanager.com/gtm.js?id=GTM-P3HJF2197.0 KiB56.2 KiB

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 Evaluation920 ms
Other590 ms
Style & Layout526 ms
Script Parsing & Compilation146 ms
Rendering114 ms
Garbage Collection19 ms
Parse HTML & CSS6.4 ms

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: 0.0 ms 12.8 KiB
URLTransfer SizeEst Savings
www.tv-asahi.co.jp/Top24/assets/index.css41.9 KiB12.8 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
www.tv-asahi.co.jp/event/renew/contents/0408/images/dPrIBfx2nX.png14.0 MiB
www.tv-asahi.co.jp/event/renew/contents/0396/images/ttmJYfyphn.jpg2.2 MiB
www.tv-asahi.co.jp/Top16/cms/douga/1194.png433.0 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/04.jpg417.8 KiB
www.tv-asahi.co.jp/Top16/cms/douga/1237.jpg324.0 KiB
www.tv-asahi.co.jp/Top16/cms/push/03723/02.jpg305.1 KiB
www.tv-asahi.co.jp/Top16/cms/douga/1238.jpg263.2 KiB
shop.tv-asahi.co.jp/images/product/927706/001/927706_001_01.jpg220.3 KiB
www.tv-asahi.co.jp/Top24/assets/index.js205.5 KiB
/data/image/product/scenario/000011/000011751/928107_001_...203.9 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
Instagram ul.account__list__container > li.account__list > a.external-link > img.account__list__icon
www.tv-asahi.co.jp/Top24/assets/icons/instagram.svg
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/01.jpg
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/02.jpg
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/03.jpg
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/04.jpg
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/05.jpg
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img.ichioshi__image
www.tv-asahi.co.jp/Top16/cms/push/03723/06.jpg
TOKYO_DREAM_PARK_開業記念_有明春祭り div.banners__container > div.banners__slide > a.banners__item__container > img
www.tv-asahi.co.jp/Top16/cms/banner/00244/01.png
YouTube ul.account__list__container > li.account__list > a.external-link > img.account__list__icon
www.tv-asahi.co.jp/Top24/assets/icons/youtube.svg
TELASA div.card__list > a.external-link > div.card__4 > img
www.tv-asahi.co.jp/Top24/assets/icons/telasa.svg
TELASA div.related__media__item > div.related__media__icon__container > div.related__media__icon > img
www.tv-asahi.co.jp/Top24/assets/icons/telasa.svg
X ul.account__list__container > li.account__list > a.external-link > img.account__list__icon
www.tv-asahi.co.jp/Top24/assets/icons/x.svg
LINE ul.account__list__container > li.account__list > a.external-link > img.account__list__icon
www.tv-asahi.co.jp/Top24/assets/icons/line.svg
テレ朝動画 div.card__list > a.card > div.card__4 > img
www.tv-asahi.co.jp/Top24/assets/icons/teleasa_douga.svg
テレ朝動画 div.card__list > a.card > div.card__4 > img
www.tv-asahi.co.jp/Top24/assets/icons/teleasa_douga.svg
テレ朝動画 div.related__media__item > div.related__media__icon__container > div.related__media__icon > img
www.tv-asahi.co.jp/Top24/assets/icons/teleasa_douga.svg
テレビ朝日 div.logo__container > a.logo__wrapper > picture > img.logo
www.tv-asahi.co.jp/Top24/assets/images/tvasahi.svg
BS朝日 div.footer__links > a.external-link > picture > img
www.tv-asahi.co.jp/Top24/assets/images/bs_asahi.png
採用情報 div.footer__banners > div.footer__banners__container > a > img
www.tv-asahi.co.jp/commons/1/images/footer_banners_saiyo.png
放送番組の違法配信撲滅キャンペーン div.footer__banners > div.footer__banners__container > a.external-link > img
www.tv-asahi.co.jp/commons/1/images/footer_banners_ihoubokumetsu.png
SDGs div.footer__banners > div.footer__banners__container > a.external-link > img
www.tv-asahi.co.jp/commons/1/images/footer_banners_SDGs.png
視聴データについて div.footer__banners > div.footer__banners__container > a > img
www.tv-asahi.co.jp/commons/1/images/footer_banners_tvdata.jpg
CSテレ朝チャンネル ch2 div.footer__links > a > picture > img
www.tv-asahi.co.jp/Top24/assets/images/ch2.png
CSテレ朝チャンネル ch1 div.footer__links > a > picture > img
www.tv-asahi.co.jp/Top24/assets/images/ch1.png
TVer div.related__media__icon__container > div.related__media__icon > picture > img
www.tv-asahi.co.jp/Top24/assets/icons/tver.svg
ABEMA div.related__media__icon__container > div.related__media__icon > picture > img
www.tv-asahi.co.jp/Top24/assets/icons/abema.svg
TVer a.external-link > div.card__4 > picture > img
www.tv-asahi.co.jp/Top24/assets/icons/tver.svg

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

●Layout shift culprits
●Optimize DOM size
●Font display
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 25 user timings
●JavaScript execution time 1.0 s
●Avoid long main-thread tasks 9 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 230 ms
●Server Backend Latencies 860 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 0 ms
●Avoid large layout shifts 2 layout shifts found
○INP breakdown
○Avoid non-composited animations
47

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
div#root > section.ichioshi > div.ichioshi__carousel > button.ichioshi__button__prev div#root > section.ichioshi > div.ichioshi__carousel > button.ichioshi__button__prev
div#root > section.ichioshi > div.ichioshi__carousel > button.ichioshi__button__next div#root > section.ichioshi > div.ichioshi__carousel > button.ichioshi__button__next

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img

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#root > div.appbar > div.appbar__menu > a.appbar__menu__button div#root > div.appbar > div.appbar__menu > a.appbar__menu__button
body > div#root > div#modal-menu > a.modal__close body > div#root > div#modal-menu > a.modal__close
body > div#root > div#modal-onair > a.modal__close body > div#root > div#modal-onair > a.modal__close

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
番組サイトへ div.ichioshi__slide > div.ichioshi__info > div.ichioshi__button > a
毎週木曜よる11:15 div.ichioshi__slide > div.ichioshi__info > div.ichioshi__text__container > div.ichioshi__subtitle
アメトーーク! div.ichioshi__slide > div.ichioshi__info > div.ichioshi__text__container > h1.ichioshi__title
ON AIR div.appbar > div.appbar__onair > div.appbar__onair__badge > span
4月21日(火)放送分 section.tver__ranking > div.card__list > a.external-link > div.card__4
4月21日(火)放送分 section.tver__ranking > div.card__list > a.external-link > div.card__4
4月21日(火)放送分 section.tver__ranking > div.card__list > a.external-link > div.card__4
4月21日(火)放送分 section.tver__ranking > div.card__list > a.external-link > div.card__4
4月16日(木)放送分 section.tver__ranking > div.card__list > a.external-link > div.card__4
2026-04-23 06:30 div.teleasa__post__list__container > div.card__list > a.card > div.card__4
2026-04-22 21:54 div.teleasa__post__list__container > div.card__list > a.card > div.card__4
2026-04-22 20:30 div.teleasa__post__list__container > div.card__list > a.card > div.card__4
2026-04-22 20:00 div.teleasa__post__list__container > div.card__list > a.card > div.card__4
2026-04-22 19:00 div.teleasa__post__list__container > div.card__list > a.card > div.card__4
オススメ div.tile__horizontally > div.tile__horizontally__item > div.tile__horizontally__item__text > i.ropping__goods__badge

These are opportunities to improve the legibility of your content.

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
テレビ朝日公式アカウント div.modal__menu > div.modal__menu__account__wrapper > div.modal__menu__account__container > h3
リボーン ～最後のヒーロー～ section.tver__ranking > div.card__list > a.external-link > h3.card__2
【テレビ千鳥】沖縄に行きたいんじゃ!!完全版&テラサ限定オリジナル section.telasa > div.card__list > a.external-link > h3.card__2
Yuzuru Hanyu ICE STORY 3rd “Echoes of Life” TOUR【マルチアングルカメラ】 section.tver__ranking > div.card__list > a.external-link > h3.card__2
【スクールゾーン】ベテランデリヘルドライバー#神速49秒 #お笑い #夜職 #あるある #ノンフィクション #最速 #まい賞 #おすすめバラエティ #49秒グ… div.youtube__ranking__list__container > div.card__list > a.external-link > h3.card__2
ウエストランド井口＆吉住、夢のネタ共演！『孤独アジト』初のリアルイベントが7月に開催 div.teleasa__post__list__container > div.card__list > a.card > h3.card__2
米報道官　停戦延長「期限設けず」 大統領が決定　イランの拿捕は停戦違反ではない section.teleasa__news > div.card__list > a.card > h3.card__2
斎藤ちはる div.announcers__wrapper > div.announcers__container > a.announcer__item > h3
ロックアンセム EX div.tile__horizontally > div.tile__horizontally__item > div.tile__horizontally__item__text > h3
夫が寝たあとに みんなの短歌 div.tile__horizontally > div.tile__horizontally__item > div.tile__horizontally__item__text > h3
セールスサイト「tv asahi Ads」がリニューアル／TVer広告専用ページを新設 div.tile__horizontally > div.tile__horizontally__item > div.tile__horizontally__item__text > h3
企業情報 div.related__links__items > div.related__links__items__container > div.related__links__category__container > h3.related__links__category__header

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
ドラマ・映画 バラエティ 音楽 アニメ・ヒーロー 報道・情報・ドキュメンタリー スポーツ 料理・旅・暮らし アナウンサーズ 番組表 div#modal-menu > div.modal__container > div.modal__menu > ul.modal__menu__container

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
ドラマ・映画 div.modal__menu > ul.modal__menu__container > a > li
バラエティ div.modal__menu > ul.modal__menu__container > a > li
音楽 div.modal__menu > ul.modal__menu__container > a > li
アニメ・ヒーロー div.modal__menu > ul.modal__menu__container > a > li
報道・情報・ドキュメンタリー div.modal__menu > ul.modal__menu__container > a > li
スポーツ div.modal__menu > ul.modal__menu__container > a > li
料理・旅・暮らし div.modal__menu > ul.modal__menu__container > a > li
アナウンサーズ div.modal__menu > ul.modal__menu__container > a > li
番組表 div.modal__menu > ul.modal__menu__container > a > li
リボーン 〜最後のヒーロー〜 section.shows > div.shows__viewport > div.shows__container > li.shows__slide
ボーダレス〜広域移動捜査隊〜 section.shows > div.shows__viewport > div.shows__container > li.shows__slide
未解決の女 警視庁文書捜査官 Season３ section.shows > div.shows__viewport > div.shows__container > li.shows__slide
ターミネーターと恋しちゃったら section.shows > div.shows__viewport > div.shows__container > li.shows__slide
ドラドラ大作戦 section.shows > div.shows__viewport > div.shows__container > li.shows__slide
エラー section.shows > div.shows__viewport > div.shows__container > li.shows__slide
余命３ヶ月のサレ夫 section.shows > div.shows__viewport > div.shows__container > li.shows__slide
もっと見る div.shows__viewport > div.shows__container > div.shows__slide > li.shows__item
朝メシまで。 section.shows > div.shows__viewport > div.shows__container > li.shows__slide
くりぃむクイズ ミラクル9 section.shows > div.shows__viewport > div.shows__container > li.shows__slide
かまいガチ section.shows > div.shows__viewport > div.shows__container > li.shows__slide
ガリベンチャーV section.shows > div.shows__viewport > div.shows__container > li.shows__slide
もっと見る div.shows__viewport > div.shows__container > div.shows__slide > li.shows__item

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

Best practices

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.no-js html.no-js

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>`
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Touch targets have sufficient size and spacing.
●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-hidden="true"]` elements do not contain focusable descendents
○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.
73

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLDisplayed sizeActual sizeExpected size
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
960 x 5401 x 1960 x 540

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
<source src> with a <picture> parent is invalid and therefore ignored. Please use <source srcset> instead.
www.tv-asahi.co.jp/Top24/assets/index.js line 39, col 12231

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.tv-asahi.co.jp/
Access to fetch at 'https://apm.yahoo.co.jp/rt/?p=1001321777&label=&ref=https%3A%2F%2Fwww.tv-asahi.co.jp%2F&rref=&pt=&item=&cat=&price=&quantity=&et_optout=false&r=1776894888.731605&pvid=d4hovi6axtlmoalc67e&su=8535db62-4fca-4dcb-9ac0-1a3d6b1ae704&__lt__cid_valid=false&_impl=ytag&brands=%22Not-A.Brand%22%3B%20v%3D%2224.0.0.0%22%2C%20%22Chromium%22%3B%20v%3D%22146.0.7680.164%22&platform=%22macOS%22&platform_version=%2210.15.7%22' from origin 'https://www.tv-asahi.co.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
/rt/?p=1001321777&label=&ref=https%3A%2F%2Fwww.tv-asahi.c...
Failed to load resource: net::ERR_FAILED
●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
●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
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Detected JavaScript libraries
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img div.ichioshi__slide > div.ichioshi__image__container > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
li.shows__slide > a.shows__item__link > div.image-protection > img li.shows__slide > a.shows__item__link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.external-link > div.image-protection > img div.card__list > a.external-link > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.card__list > a.card > div.image-protection > img div.card__list > a.card > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img
div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img div.tile__horizontally > div.tile__horizontally__item > div.image-protection > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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