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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.

43

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
asset.fwpub1.com/js/embed-feed.js1800.0 s118.2 KiB
code.piano.io/api/tinypass.min.js14400.0 s132.4 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.4 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_podcast_pc.webp0.0 ms82.2 KiB
c.amazon-adsystem.com/aax2/apstag.js3600.0 s90.9 KiB
cdn.mainichi.jp/vol1/2022/10/10/20221010hpr00m010002000q/10.webp?10.0 ms69.0 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_medical_s.webp0.0 ms64.9 KiB
cdn.mainichi.jp/vol1/2023/08/24/20230824hpr00m040002000q/10.webp?10.0 ms61.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp?10.0 ms53.2 KiB
cdn.mainichi.jp/vol1/2025/12/23/20251223hpr00m040002000q/10.webp?10.0 ms49.0 KiB
anymind360.com/js/8523/ats.js1200.0 s52.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_medical.jpg0.0 ms42.1 KiB
/signals/config/990943682127685?v=2.9.298&r=stable&domain...1200.0 s44.4 KiB
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.css0.0 ms31.2 KiB
cdn.mainichi.jp/vol1/libs/v2/swiper.js0.0 ms31.2 KiB
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js0.0 ms31.0 KiB
scdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.cxense.com/cx.js3600.0 s38.1 KiB
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.min.css?202503180.0 ms27.4 KiB
cdn.mainichi.jp/vol1/2026/04/02/20260402hrc00m040001000q/0.png?10.0 ms24.9 KiB
cdn.mainichi.jp/vol1/2026/04/06/20260406mpj00m040097000p/0c6.webp?10.0 ms23.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040298000p/0c6.webp?10.0 ms22.9 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m010333000p/0c6.webp?10.0 ms21.5 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000097000p/0c6.webp?10.0 ms21.0 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/ogp_tsunagaru.webp0.0 ms20.1 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040235000p/0c6.webp?10.0 ms19.3 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040254000p/0c6.webp?10.0 ms19.2 KiB
asset.fwpub1.com/js/chunks/fwn/5789-98da68aaeeb0cb2772dc.js1800.0 s21.9 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10001173063000p/0c6.webp?10.0 ms17.9 KiB
dmp.im-apps.net/sdk/log.2.js5386.0 s22.7 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000093000p/0c6.webp?10.0 ms16.9 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415mpj00m040001000p/0c6.webp?10.0 ms16.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040288000p/0c6.webp?10.0 ms15.6 KiB
cdn.webpush.jp/js/pushone.js0.0 ms15.3 KiB
/signals/config/1771352443188203?v=2.9.298&r=stable&domai...1200.0 s16.0 KiB
cdn.webpush.jp/js/thirdparty/firebase.11.0.2.js0.0 ms13.3 KiB
asset.fwpub1.com/js/chunks/fwn/1657-94117e39298f2fec788d.js1800.0 s15.3 KiB
cdn.mainichi.jp/vol1/libs/v2/customscrollbar.js0.0 ms13.2 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c6.webp?10.0 ms11.9 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416mpj00m040004000p/0c6.webp?10.0 ms11.8 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m010281000p/0c6.webp?10.0 ms11.6 KiB
cdn.mainichi.jp/vol1/2026/04/12/20260412k0000m040077000p/0c6.webp?10.0 ms11.5 KiB
cdn.adjust.com/adjust-smart-banner-latest.min.js3600.0 s13.9 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js600.0 s11.8 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10001173079000p/0c6.webp?10.0 ms10.7 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415s10001173455000p/0c6.webp?10.0 ms10.7 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_economist.png?202601060.0 ms10.6 KiB
scripts.clarity.ms/0.8.60-beta/clarity.js86400.0 s25.0 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040313000p/0c6.webp?10.0 ms9.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_24colorpens.png0.0 ms8.9 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416k0000m030004000p/0c6.webp?10.0 ms8.7 KiB
cdn.mainichi.jp/vol1/js/v2/common/mypage.js?202405220.0 ms8.5 KiB
cdn.mainichi.jp/vol1/js/v2/pc/script_pc.js?202309290.0 ms8.5 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_mainichi_kotoba_plus.jpg0.0 ms8.2 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030272000p/0c6.webp?10.0 ms8.0 KiB
cdn.mainichi.jp/vol1/2026/04/08/20260408k0000m020235000p/0c6.webp?10.0 ms8.0 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415s10001173477000p/0c6.webp?10.0 ms7.6 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030324000p/0c6.webp?10.0 ms7.4 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000099000p/0c6.webp?10.0 ms7.4 KiB
/vol1/images/v2/pc/index/logo_member_wallstreetjournal.pn...0.0 ms7.1 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_digital.png?202410010.0 ms6.3 KiB
cdn.mainichi.jp/vol1/2026/04/08/20260408k0000m010409000p/0c3.webp?20.0 ms6.1 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000096000p/0c6.webp?10.0 ms5.9 KiB
asset.fwpub1.com/js/chunks/fwn/4649-902be6faf8ee9da262fa.js1800.0 s6.7 KiB
/ng/common/i18n/platform-translation-map_en_US.js?version...86400.0 s14.0 KiB
cdn.mainichi.jp/vol1/2026/04/10/20260410k0000m040312000p/0c3.webp?20.0 ms5.6 KiB
cdn.mainichi.jp/vol1/2025/11/21/20251121k0000m010368000p/0c6.webp?20.0 ms5.5 KiB
asset.fwpub1.com/js/chunks/fwn/1092-a7c9dc530ac13b355767.js1800.0 s6.3 KiB
/_sam/H4sIAAAAAAAA_z3IwQ6AIAgA0B9KmJ76m4bJHI6oBa7f7-bt7eE...603371.0 s54.4 KiB
scdn.cxense.com/cx.cce.js3600.0 s6.8 KiB
eus.rubiconproject.com/usync.js57761.0 s11.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040288000p/0c3.webp?10.0 ms5.1 KiB
cdn.mainichi.jp/vol1/2026/04/09/20260409mmd00m414001000p/0c6.webp?10.0 ms5.1 KiB
asset.fwpub1.com/js/chunks/fwn/2389-4b7e1b3d3181136aff21.js1800.0 s5.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/img_noimage_144.png0.0 ms5.0 KiB
cdn.cxense.com/track_banners_init.js3600.0 s6.3 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm004070114000p/0c3.webp?20.0 ms5.0 KiB
cdn.mainichi.jp/vol1/libs/v2/colorbox.js0.0 ms5.0 KiB
cdn.mainichi.jp/vol1/css/v2/pc/common_pc.css0.0 ms4.9 KiB
cdn.mainichi.jp/vol1/2026/04/01/20260401dde012010054000p/0c3.webp?20.0 ms4.9 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_mainichi_zukai.jpg0.0 ms4.8 KiB
cdn.mainichi.jp/vol1/2022/04/01/20220401hpr00m030001000q/0c6.webp?20.0 ms4.8 KiB
asset.fwpub1.com/js/chunks/fwn/2878-fd463ccd505005b3228e.js1800.0 s5.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040141000p/0c3.webp?10.0 ms4.7 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm001070110000p/0c3.webp?10.0 ms4.6 KiB
cdn.mainichi.jp/vol1/2026/04/03/20260403k0000m100095000p/0c3.webp?10.0 ms4.4 KiB
cdn.mainichi.jp/vol1/css/v2/common/customscrollbar.min.css0.0 ms4.4 KiB
asset.fwpub1.com/js/chunks/fwn/2373-b25119322a28e974963d.js1800.0 s5.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo.svg0.0 ms4.3 KiB
cdn.mainichi.jp/vol1/css/v2/pc/common_pc.min.css?202504160.0 ms4.3 KiB
cdn.mainichi.jp/vol1/2026/03/15/20260315biz00m020001000p/0c6.webp?10.0 ms4.2 KiB
cdn.mainichi.jp/vol1/css/v2/pc/index_pc.min.css?202603170.0 ms4.1 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414wom00m404007000p/0c6.webp?20.0 ms4.1 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_studyenglish.svg?202510310.0 ms4.1 KiB
asset.fwpub1.com/js/assets/2756875147bf6e7de183f725c308c631.png1800.0 s4.5 KiB
cdn.mainichi.jp/vol1/css/v2/pc/mypage_pc.min.css?202405220.0 ms3.8 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_syougakuseishinbun.png0.0 ms3.8 KiB
/showtemplate/general/loadTranslationMap?aid=gmsPBEZtpj&v...86400.0 s9.4 KiB
buy-ap.piano.io/widget/dist/template/css/template.bundle.1.0.css14400.0 s5.5 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030034000p/0c3.webp?10.0 ms3.7 KiB
cdn.mainichi.jp/vol1/css/v2/common/swiper.min.css0.0 ms3.6 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_hanasone.png0.0 ms3.6 KiB
csm.cxpublic.com/Mainichi/domain/mainichi.jp.js?20260415233600.0 s4.5 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_sodan.png0.0 ms3.6 KiB
csm.cxpublic.com/Mainichi.js3600.0 s4.4 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414k0000m030006000p/0c3.webp?20.0 ms3.5 KiB
asset.fwpub1.com/js/chunks/fwn/2044-814fafba44f1e627f929.js1800.0 s4.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_kishanome.png0.0 ms3.4 KiB
cdn.mainichi.jp/vol1/2026/04/13/20260413k0000m030157000p/0c3.webp?10.0 ms3.3 KiB
cdn.smartnews-ads.com/i/pixel.js150.0 s3.3 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm005070108000p/0c3.webp?10.0 ms2.8 KiB
cdn.mainichi.jp/vol1/2026/04/13/20260413k0000m030158000p/0c3.webp?10.0 ms2.8 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_keizaipremier.png0.0 ms2.7 KiB
asset.fwpub1.com/js/chunks/fwn/5720-157308b8334b29ea9266.js1800.0 s3.1 KiB
cdn.mainichi.jp/vol1/2026/04/16/20260416ddm005070109000p/0c3.webp?10.0 ms2.7 KiB
cdn.mainichi.jp/vol1/2026/03/29/20260329k0000m200054000p/0c3.webp?10.0 ms2.5 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/icon_member_privilege.svg0.0 ms2.4 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040020000p/0c3.webp?10.0 ms2.4 KiB
cdn.mainichi.jp/vol1/2026/04/07/20260407k0000m010233000p/0c3.webp?10.0 ms2.3 KiB
experience-ap.piano.io/xbuilder/experience/load?aid=gmsPBEZtpj1800.0 s2.6 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_ringbell.png?202410010.0 ms2.2 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_economist.png0.0 ms2.1 KiB
dmp.im-apps.net/sdk/im-uid.js10800.0 s3.0 KiB
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m030184000p/0c3.webp?10.0 ms2.1 KiB
cdn.mainichi.jp/vol1/2026/04/09/20260409k0000m200168000p/0c3.webp?10.0 ms2.0 KiB
asset.fwpub1.com/js/chunks/fwn/2942-1c8cfe05a4ac0997ea15.js1800.0 s2.3 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_suudoku.svg?202410010.0 ms2.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_kimochi.png0.0 ms1.8 KiB
www.npttech.com/advertising.js28800.0 s3.0 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_editorial.png0.0 ms1.8 KiB
cdn.opecloud.com/ope-mediaconsortium.js604800.0 s17.7 KiB
buy-ap.piano.io/widget/dist/template/css/img/fail-icon.png14400.0 s2.6 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_seijipremier.png0.0 ms1.7 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_yoroku.png0.0 ms1.7 KiB
cdn.mainichi.jp/vol1/libs/v2/jquery.cookie.js0.0 ms1.7 KiB
cdn.mainichi.jp/vol1/2026/04/14/20260414k0000m030210000p/0c3.webp?10.0 ms1.6 KiB
cdn.mainichi.jp/vol1/js/v2/common/morelink.js?202209060.0 ms1.6 KiB
cdn.mainichi.jp/vol1/images/v2/common/logo_sundaymainichi.png0.0 ms1.5 KiB
asset.fwpub1.com/js/chunks/fwn/1647-2f17fe8bb1a9883373ed.js1800.0 s1.7 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_zukai.svg?2024110711500.0 ms1.5 KiB
asset.fwpub1.com/js/chunks/fwn/8098-e261125af6e167d1c686.js1800.0 s1.6 KiB
ads.pubmatic.com/AdServer/js/userSync.js128826.0 s3.9 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_db.svg?202410010.0 ms1.3 KiB
cdn.mainichi.jp/vol1/libs/v2/lazyload.min.js0.0 ms1.3 KiB
cdn.mainichi.jp/vol1/css/v2/common/colorbox.min.css0.0 ms1.3 KiB
asset.fwpub1.com/js/chunks/fwn/8740-0c731e7855ea1d5b07c2.js1800.0 s1.4 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_tokutoku.svg?202410010.0 ms1.2 KiB
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_maipo.svg0.0 ms1.1 KiB
dmp.im-apps.net/js/1014416/0001/itm.js10934.0 s1.5 KiB
cdn.mainichi.jp/vol1/images/v2/common/icon_key.svg0.0 ms1.0 KiB
d.line-scdn.net/n/line_tag/public/release/v1/lt.js2107283.0 s10.1 KiB
asset.fwpub1.com/js/chunks/fwn/1155-143f41f853f41762b025.js1800.0 s1.1 KiB
cdn.mainichi.jp/vol1/images/v2/common/icon_close_popup.svg0.0 ms806 B
/coins_webapi/fcm/setting/fe40d9e1c0637bd2ff56caa27db29d0...0.0 ms734 B
asset.fwpub1.com/js/chunks/fwn/i18next-6ea18556f38fdf7a81e7.js1800.0 s762 B
cdn.mainichi.jp/vol1/images/v2/common/arrow_blue.svg0.0 ms650 B
config.aps.amazon-adsystem.com/configs/36773600.0 s790 B
/Repo/rep.gif?ver=3.3.0&typ=pgv&rnd=mo0o9sxrjhr8vpl2&sid=...0.0 ms412 B
/dmpsynclog/log.gif?distributorid=&event=69&event_name=sy...0.0 ms308 B
/p?id=1c439b70d8e6b38d597dc905&t=1776295156&url=https%3A%...0.0 ms225 B
/tr/?id=990943682127685&ev=PageView&dl=https%3A%2F%2Fmain...0.0 ms16 B
/tr/?id=1771352443188203&ev=PageView&dl=https%3A%2F%2Fmai...0.0 ms16 B
/tr/?id=990943682127685&ev=MyCustomEvent&dl=https%3A%2F%2...0.0 ms16 B
/tr/?id=1771352443188203&ev=MyCustomEvent&dl=https%3A%2F%...0.0 ms16 B
d.line-scdn.net/n/line_tag/public/release/v1/lt.js2107283.0 s0 B
scdn.cxense.com/cx.cce.js3600.0 s0 B

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.1367] map[node:map[boundingRect:map[bottom:940 height:50 left:0 right:1350 top:890 width:1350] lhId:page-1-DIV nodeLabel:body > div#pianoj_ribbon path:1,HTML,1,BODY,75,DIV selector:body > div#pianoj_ribbon snippet:<div id="pianoj_ribbon" style="position: fixed; bottom: 0px; left: 0px; width: 100%; z-index: 9999;"> type:node] score:0.072284 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-2-LINK nodeLabel:head > link path:1,HTML,0,HEAD,157,LINK selector:head > link snippet:<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin=""> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:940 height:50 left:0 right:1350 top:890 width:1350] lhId:page-1-DIV nodeLabel:body > div#pianoj_ribbon path:1,HTML,1,BODY,75,DIV selector:body > div#pianoj_ribbon snippet:<div id="pianoj_ribbon" style="position: fixed; bottom: 0px; left: 0px; width: 100%; z-index: 9999;"> type:node] score:0.064416]]

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
/s/opensans/v40/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu...45 ms
/s/roboto/v48/KFOMCnqEu92Fr1ME7kSn66aGLdTylUAMQXC89YmC2DP...35 ms
/s/roboto/v48/KFOMCnqEu92Fr1ME7kSn66aGLdTylUAMQXC89YmC2DP...30 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:223.21 source:map[column:31237 line:4 type:source-location url:https://cdn.mainichi.jp/vol1/libs/v2/customscrollbar.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:223.21 source:map[column:31435 line:3 type:source-location url:https://cdn.mainichi.jp/vol1/libs/v2/customscrollbar.js urlProvider:network]] map[reflowTime:241.989 source:map[type:text value:[unattributed]]] map[reflowTime:0.05 source:map[column:23219 line:1 type:source-location url:https://scripts.clarity.ms/0.8.60-beta/clarity.js urlProvider:network]]]

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:483.94 label:Time to first byte subpart:timeToFirstByte] map[duration:1063.854 label:Resource load delay subpart:resourceLoadDelay] map[duration:49.437 label:Resource load duration subpart:resourceLoadDuration] map[duration:1046.953 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: 夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影
path: 1,HTML,1,BODY,12,DIV,1,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,SECTION,0,DIV,0,DIV,1,DIV,0,A,0,DIV,0,DIV,0,PICTURE,1,IMG
selector: div.toppickup-item > div.toppickup-image > picture > img.is-webp
snippet: <img class="is-webp" loading="lazy" src="https://cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp…" width="394" height="263" alt="夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影">

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-0-IMG
nodeLabel: 夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影
path: 1,HTML,1,BODY,12,DIV,1,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,SECTION,0,DIV,0,DIV,1,DIV,0,A,0,DIV,0,DIV,0,PICTURE,1,IMG
selector: div.toppickup-item > div.toppickup-image > picture > img.is-webp
snippet: <img class="is-webp" loading="lazy" src="https://cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp…" width="394" height="263" alt="夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影">

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
cdn.mainichi.jp/vol1/js/v2/common/mypage.js?202405228.5 KiB
cdn.mainichi.jp/vol1/css/v2/pc/index_pc.min.css?202603174.1 KiB
cdn.mainichi.jp/vol1/js/v2/common/morelink.js?202209061.6 KiB
cdn.mainichi.jp/vol1/css/v2/pc/mypage_pc.min.css?202405223.8 KiB
cdn.mainichi.jp/vol1/css/v2/pc/common_pc.min.css?202504164.3 KiB
cdn.mainichi.jp/vol1/libs/v2/colorbox.js5.0 KiB
cdn.mainichi.jp/vol1/libs/v2/swiper.js31.2 KiB112 ms
cdn.mainichi.jp/vol1/css/v2/common/colorbox.min.css1.3 KiB56 ms
cdn.mainichi.jp/vol1/css/v2/common/customscrollbar.min.css4.4 KiB
cdn.mainichi.jp/vol1/css/v2/common/swiper.min.css3.6 KiB304 ms
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.min.css?2025031827.4 KiB112 ms
cdn.mainichi.jp/vol1/libs/v2/customscrollbar.js13.2 KiB56 ms
fonts.googleapis.com/css2?family=Roboto:ital,wght@0,400;0,700;1,500&display=swap2.2 KiB319 ms
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js31.0 KiB56 ms
cdn.mainichi.jp/vol1/libs/v2/jquery.cookie.js1.7 KiB56 ms
cdn.mainichi.jp/vol1/libs/v2/lazyload.min.js1.3 KiB
scdn.cxense.com/cx.js38.1 KiB286 ms
anymind360.com/js/8523/ats.js52.9 KiB363 ms

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
毎日新聞PODCAST div.mt-32 > a > picture > img
cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_podcast_pc.webp81.7 KiB75.7 KiB
a > div.featurelist-image > picture > img.is-webp a > div.featurelist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2022/10/10/20221010hpr00m010002000q/10.webp?168.6 KiB66.7 KiB
a > div.featurelist-image > picture > img.is-webp a > div.featurelist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2023/08/24/20230824hpr00m040002000q/10.webp?161.1 KiB59.3 KiB
毎日メディカル div.mb-32 > a > picture > img
cdn.mainichi.jp/vol1/images/v2/pc/index/bnr_medical_s.webp64.5 KiB56.8 KiB
a > div.featurelist-image > picture > img.is-webp a > div.featurelist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2025/12/23/20251223hpr00m040002000q/10.webp?148.6 KiB46.8 KiB
夜遅く京都府警亀岡署の前に集まる報道陣＝京都府亀岡市で2026年4月15日午後9時57分、渡部直樹撮影 div.toppickup-item > div.toppickup-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040328000p/0c10.webp?152.8 KiB41.1 KiB
head > link head > link
cdn.mainichi.jp/vol1/2026/04/02/20260402hrc00m040001000q/0.png?124.4 KiB24.0 KiB
「不可解すぎる」　京都の11歳行方不明、見えてきた二つの謎 div.siderankinglist-item > div.siderankinglist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/06/20260406mpj00m040097000p/0c6.webp?123.1 KiB22.2 KiB
家宅捜索が入った安達結希さんの自宅＝京都府南丹市で2026年4月15日午前10時35分、本社ヘリから北村隆夫撮影 div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040298000p/0c6.webp?122.4 KiB18.4 KiB
皇族数確保について協議に臨む与野党の議員ら＝東京都千代田区の衆院議長公邸で2026年4月15日午後3時1分、和田大典撮影 div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m010333000p/0c6.webp?121.1 KiB17.1 KiB
瀧本美織の公式インスタグラム（＠mioritakimoto_official）から div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000097000p/0c6.webp?120.6 KiB16.6 KiB
つながる毎日新聞 section#index-tsunagaru > a > picture > img
cdn.mainichi.jp/vol1/images/v2/pc/index/ogp_tsunagaru.webp19.7 KiB15.6 KiB
時間外労働の上限規定 div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040235000p/0c6.webp?118.9 KiB14.9 KiB
東京地裁＝東京都千代田区で2020年1月15日午前10時36分、米田堅持撮影 div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040254000p/0c6.webp?118.8 KiB14.8 KiB
京都・南丹11歳死亡　急展開で刑事事件に発展　残る多くの謎 div.siderankinglist-item > div.siderankinglist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/15/20260415k0000m040288000p/0c6.webp?115.2 KiB14.2 KiB
＜ソ・楽＞勝利しタッチを交わす村林（左から3人目）ら楽天ナイン（撮影・岡田　丈靖） div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/16/20260416s10001173063000p/0c6.webp?117.5 KiB13.5 KiB
三上悠亜公式インスタグラム(@yua_mikami)から div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/16/20260416s10041000093000p/0c6.webp?116.5 KiB12.7 KiB
次々と警察車両が集まる安達結希さんの自宅周辺＝京都府南丹市で2026年4月15日午前7時4分、資野亮太撮影 div.panellist-item > div.panellist-image > picture > img.is-webp
cdn.mainichi.jp/vol1/2026/04/15/20260415mpj00m040001000p/0c6.webp?116.2 KiB12.4 KiB
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_economist.png?2026010610.2 KiB9.6 KiB
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
/vol1/images/v2/pc/index/logo_member_wallstreetjournal.pn...6.7 KiB6.0 KiB
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_digital.png?202410015.9 KiB5.5 KiB

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

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
body > div#pianoj_ribbon body > div#pianoj_ribbon
0.072
body > div#pianoj_ribbon body > div#pianoj_ribbon
0.064

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 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 39.6 KiB
URLTransfer SizeEst Savings
cdn.mainichi.jp/vol1/css/v2/pc/module_pc.min.css?2025031827.0 KiB25.6 KiB
.fc-consent-root .fc-dialog-container.fc-fullscreen { height: 100% !important; … } …16.3 KiB14.1 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 390 ms 902.9 KiB
URLTransfer SizeEst Savings
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...186.4 KiB126.9 KiB
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js188.1 KiB85.1 KiB
code.piano.io/api/tinypass.min.js131.7 KiB72.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-KX3Q99SS&l=itm_dl1_1014416139.1 KiB67.3 KiB
/gtag/destination?id=AW-350911520&cx=c&gtm=4e64e1h1&bs=ctrl136.8 KiB65.4 KiB
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1h1&bs=ctrl176.6 KiB58.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-5M48NC177.8 KiB57.3 KiB
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js74.5 KiB40.6 KiB
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js74.5 KiB40.0 KiB
c.amazon-adsystem.com/aax2/apstag.js90.4 KiB39.0 KiB
fundingchoicesmessages.google.com/i/41213723?ers=368.8 KiB36.2 KiB
connect.facebook.net/en_US/fbevents.js96.3 KiB33.5 KiB
asset.fwpub1.com/js/embed-feed.js117.6 KiB33.5 KiB
scdn.cxense.com/cx.js37.5 KiB31.5 KiB
scdn.cxense.com/cx.js37.5 KiB31.5 KiB
cdn.cxense.com/cx.js37.5 KiB31.5 KiB
cdn.mainichi.jp/vol1/libs/v2/swiper.js30.9 KiB27.4 KiB
anymind360.com/js/8523/ats.js52.0 KiB25.5 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
mainichi.jp/1.5 s148 ms1.7 ms
Unattributable354 ms63 ms0.0 ms
cdn.mainichi.jp/vol1/libs/v2/jquery-3.6.4.min.js314 ms60 ms1.6 ms
asset.fwpub1.com/js/chunks/fwn/8740-0c731e7855ea1d5b07c2.js188 ms175 ms0.1 ms
asset.fwpub1.com/js/embed-feed.js151 ms117 ms6.4 ms
www.googletagmanager.com/gtm.js?id=GTM-5M48NC144 ms120 ms14 ms
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js126 ms110 ms12 ms
code.piano.io/api/tinypass.min.js99 ms77 ms7.7 ms
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1h1&bs=ctrl96 ms85 ms10 ms
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...92 ms65 ms10 ms
asset.fwpub1.com/js/chunks/fwn/1657-94117e39298f2fec788d.js87 ms72 ms0.7 ms
scdn.cxense.com/cx.js81 ms37 ms9.6 ms
/f/AGSKWxX3A0yDG9tFB-rOHfRhFg6K-4hDs5rbgTJ5_QXdZvhElbqxI-...78 ms39 ms8.5 ms
c.amazon-adsystem.com/aax2/apstag.js75 ms64 ms6.2 ms
scripts.clarity.ms/0.8.60-beta/clarity.js72 ms58 ms1.2 ms
/ats-modules/6e46d34f-f300-4ffe-89b4-2ff37b5e7be9/ats.js60 ms45 ms15 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 Evaluation1.9 s
Style & Layout1.5 s
Other431 ms
Script Parsing & Compilation174 ms
Rendering121 ms
Garbage Collection55 ms
Parse HTML & CSS39 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in a sub frame.Actionable

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
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js188.4 KiB
/pagead/managed/js/gpt/m202604100101/pubads_impl.js?cb=31...186.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-5M48NC178.3 KiB
www.googletagmanager.com/gtag/js?id=G-TWF4RDH5YQ&cx=c&gtm=4e64e1h1&bs=ctrl176.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-KX3Q99SS&l=itm_dl1_1014416139.1 KiB
/gtag/destination?id=AW-350911520&cx=c&gtm=4e64e1h1&bs=ctrl136.9 KiB
code.piano.io/api/tinypass.min.js132.4 KiB
asset.fwpub1.com/js/embed-feed.js118.2 KiB
connect.facebook.net/en_US/fbevents.js96.4 KiB
c.amazon-adsystem.com/aax2/apstag.js90.9 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
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_zukai.svg?202411071150
つながる毎日新聞 section#index-tsunagaru > a > picture > img
cdn.mainichi.jp/vol1/images/v2/pc/index/ogp_tsunagaru.webp
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_maipo.svg
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
/vol1/images/v2/pc/index/logo_member_wallstreetjournal.pn...
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_economist.png?20260106
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_ringbell.png?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_digital.png?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_studyenglish.svg?20251031
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_tokutoku.svg?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_db.svg?20241001
div.topmember-item > div.topmember-item-inner > div.topmember-image > img div.topmember-item > div.topmember-item-inner > div.topmember-image > img
cdn.mainichi.jp/vol1/images/v2/pc/index/logo_member_suudoku.svg?20241001
毎日新聞社 div.footer-bottom > div.footer-logo > a > img

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

●Document request latency
●Optimize DOM size
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 15 user timings
●Avoid long main-thread tasks 13 long tasks found
●Network Requests
●Network Round Trip Times 270 ms
●Server Backend Latencies 640 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Avoid multiple page redirects
●Initial server response time was short Root document took 450 ms
○INP breakdown
○Avoid non-composited animations
84

Accessibility

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

ARIA

Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
トップニュース div.maintab > ul.maintab-list > li.is-active > button
ランキング div.maintab > ul.maintab-list > li > button
緊迫する中東情勢 div.maintab > ul.maintab-list > li.text-ellipsis-1 > button.text-ellipsis-1
高市政権の行方 div.maintab > ul.maintab-list > li.text-ellipsis-1 > button.text-ellipsis-1

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

Names and labels

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div#pi-pc-all-popupleft > div.popuppanel4 > button.popuppanel-close body > div#pi-pc-all-popupleft > div.popuppanel4 > button.popuppanel-close

Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
body > div#pianoj_ribbon > div.tp-container-inner > iframe#offer_762df4d1ce1a6fda5189-0 body > div#pianoj_ribbon > div.tp-container-inner > iframe#offer_762df4d1ce1a6fda5189-0

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
4/16 01:52 div.toppickup-item > div.toppickup-detail > div.articletag > span.articletag-date
4/15 20:39 div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date
4/16 06:00 div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date
4/16 07:00 div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date
4/16 05:00 div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date
4/16 06:00 div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date
4/16 05:00 div.toppickuplist-item > div.toppickuplist-detail > div.articletag > span.articletag-date
4/16 02:04 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 02:04 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 02:04 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 02:02 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 17:37 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 05:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/13 18:01 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/13 17:15 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
広告 div.l-listmain > aside#index-remarkable > h2.title-block > span.topremarkable-title-sub
4/16 06:00 li > a > div.articletag > span.articletag-date
4/16 05:31 li > a > div.articletag > span.articletag-date
4/13 06:01 li > a > div.articletag > span.articletag-date
4/16 08:15 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 08:11 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 08:07 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 08:05 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 08:00 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 08:00 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 08:00 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 08:00 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 11:30 div.toptile-item > div.toptile-detail > div.articletag > span.articletag-date
4/16 02:45 div.toptile-item > div.toptile-detail > div.articletag > span.articletag-date
4/16 01:05 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 06:00 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 05:30 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 05:30 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 02:04 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/16 01:22 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 22:34 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 22:33 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 22:23 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 22:18 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 21:44 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 21:05 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 20:23 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 20:20 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 20:19 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
4/15 19:28 div.panellist-item > div.panellist-detail > div.articletag > span.articletag-date
宅配無料 div.topmember-label > ul > li > span.memberlabel-takuhai-free
宅配プレミアム div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium
スタンダード div.topmember-label > ul > li > span.memberlabel-standard
宅配プレミアム div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium
スタンダード div.topmember-label > ul > li > span.memberlabel-standard
宅配無料 div.topmember-label > ul > li > span.memberlabel-takuhai-free
宅配プレミアム div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium
スタンダード div.topmember-label > ul > li > span.memberlabel-standard
宅配無料 div.topmember-label > ul > li > span.memberlabel-takuhai-free
宅配プレミアム div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium
スタンダード div.topmember-label > ul > li > span.memberlabel-standard
宅配無料 div.topmember-label > ul > li > span.memberlabel-takuhai-free
宅配プレミアム div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium
宅配無料 div.topmember-label > ul > li > span.memberlabel-takuhai-free
宅配プレミアム div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium
宅配無料 div.topmember-label > ul > li > span.memberlabel-takuhai-free
宅配プレミアム div.topmember-label > ul > li.is-available > span.memberlabel-takuhai-premium
4/16 01:52 div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date
4/15 20:39 div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date
4/16 01:22 div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date
4/12 21:26 div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date
4/6 18:57 div.siderankinglist-item > div.siderankinglist-detail > div.articletag > span.articletag-date
4/16 07:45 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 07:15 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 07:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 06:45 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 06:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 05:45 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 05:45 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 05:30 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 02:03 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 20:53 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 20:42 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 20:19 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 06:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 21:44 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 20:31 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 20:23 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 20:19 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 19:31 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 06:02 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 06:01 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 06:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 01:05 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 00:59 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 22:34 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 08:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 23:12 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 21:20 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 19:25 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 19:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/14 22:59 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 07:15 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 21:44 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 20:27 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 19:03 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 13:15 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/15 13:00 div.articlelist-item > div.articlelist-detail > div.articletag > span.articletag-date
4/16 07:00 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 07:45 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 06:15 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 05:03 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 05:45 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 08:00 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 05:04 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 05:05 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date
4/16 05:02 div.arealist-item > div.arealist-detail > div.articletag > span.articletag-date

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
京都・南丹の男児死亡　死体遺棄の疑いで逮捕の父親、容疑認める a > div.toppickup-item > div.toppickup-detail > h3.toppickup-title

These are opportunities to improve keyboard navigation in your application.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
●Definition list items are wrapped in `<dl>` elements
●Document has a `<title>` element
●`<html>` element has a `[lang]` attribute
●`<html>` element has a valid value for its `[lang]` attribute
●Links are distinguishable without relying on color.
●Links have a discernible name
●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
●No element has a `[tabindex]` value greater than 0
●Touch targets have sufficient size and spacing.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○ARIA IDs are unique
○No form fields have multiple labels
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Image elements do not have `[alt]` attributes that are redundant text.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
73

Best Practices

Trust and Safety

Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source
cdn.webpush.jp/js/thirdparty/firebase.11.0.2.js line 10, col 41088

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
Topics
anymind360.com/js/8523/prebid_2026_2_20_8_25_13.js line 89, col 1182
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
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598477&cb=80738661154&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=ff25a80f-18a5-42e0-a330-8fdf3633e32d&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Ftop%2Fbillboard&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598478&cb=97920162339&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=ddcb266f-3c71-4373-9f2a-914f8d49aabd&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Ftop%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598479&cb=43752917832&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=f8faecf6-ad92-49e0-b77c-709d61bd7c17&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Fchannel%2Fbillboard&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598480&cb=46060287924&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=923ce8ee-e6c5-419c-b200-d9e78a65f519&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Fchannel%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598481&cb=97169137249&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=f442575d-2a0e-427b-bd4e-d3afdcbc445c&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Fchannel%2Frec2&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598482&cb=23805622472&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=3241dfe0-8c99-465c-bafc-f361bf3df581&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Farticle%2Fbillboard&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598483&cb=66949100428&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=eb845df5-3a49-4a37-b2bd-78b2cc8777f4&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Farticle%2Frec1&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1598484&cb=68532302928&charset=UTF-8&loc=https%3A%2F%2Fmainichi.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=30340184-a35c-47d9-bc4c-bf7d1d7c6034&ua=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F147.0.0.0%20Safari%2F537.36&tpaf=1&cks=1&gpid=%2F41213723%2FPC%2Farticle%2Frec2&title=%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2583%2587%25E3%2582%25B8%25E3%2582%25BF%25E3%2583%25AB%2520%257C%2520%25E6%25AF%258E%25E6%2597%25A5%25E6%2596%25B0%25E8%2581%259E%25E3%2581%25AE%25E3%2583%258B%25E3%2583%25A5%25E3%2583%25BC%25E3%2582%25B9%25E3%2582%25B5%25E3%2582%25A4%25E3%2583%2588&sw=600&sh=800&ucmbl=%3F0' from origin 'https://mainichi.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Fbillboard&tagId=44216%3A1000299611&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Finread&tagId=44216%3A1000299504&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec1&tagId=44216%3A1000299608&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec2&tagId=44216%3A1000299607&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Fbillboard&tagId=44216%3A1000299505&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec1&tagId=44216%3A1000299612&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec2&tagId=44216%3A1000299609&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Fbillboard&tagId=44216%3A1000299503&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Access to fetch at 'https://hb.adingo.jp/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Frec1&tagId=44216%3A1000299610&groupId=1000188806' from origin 'https://mainichi.jp' has been blocked by CORS policy: Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.
mainichi.jp/
Attestation check for Protected Audience on https://grid-bidder.criteo.com failed.
mainichi.jp/
Attestation check for Protected Audience on https://hbopenbid.pubmatic.com failed.
mainichi.jp/
Attestation check for Protected Audience on https://htlb.casalemedia.com failed.
/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec2&tag...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Fbillboar...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Frec1&tagId=4...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Fchannel%2Frec1&tag...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Ftop%2Fbillboard&ta...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec2&tag...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Frec1&tag...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Fbillboar...
Failed to load resource: net::ERR_FAILED
/prebid?dfpUnitCode=%2F41213723%2FPC%2Farticle%2Finread&t...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598477&cb=80738661154&char...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598478&cb=97920162339&char...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598484&cb=68532302928&char...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598483&cb=66949100428&char...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598479&cb=43752917832&char...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598482&cb=23805622472&char...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598481&cb=97169137249&char...
Failed to load resource: net::ERR_FAILED
/yie/ld/api/ad_call/v2?zoneid=1598480&cb=46060287924&char...
Failed to load resource: net::ERR_FAILED
api.rlcdn.com/api/identity/envelope?pid=13378
Failed to load resource: the server responded with a status of 451 ()
ReferenceError: gtag is not defined at <anonymous>:1:1 at f.ba (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:239:229) at f.ka (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:238:427) at f.Y (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:236:407) at f.F (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:234:445) at f.write (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:234:70) at f (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:241:215) at e (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:240:279) at q.streams (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:242:30) at d (https://www.googletagmanager.com/gtm.js?id=GTM-5M48NC:973:303)
www.googletagmanager.com/gtm.js?id=GTM-5M48NC line 231, col 503
Uncaught [object Object]
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate clickjacking with XFO or CSP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
100

SEO

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

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

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