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Lighthouse Desktop

· 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.

55

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
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_probb.png300.0 s188.6 KiB
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_ohtani.png300.0 s178.8 KiB
media.image.infoseek.co.jp/shared/barter/feature_sq_2510_sousai2025.jpg300.0 s161.0 KiB
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2601_iran.jpg300.0 s112.7 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js3600.0 s120.2 KiB
/shared/feature/feature_og/feature_sq_2508_entertainment.jpg300.0 s88.2 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js3600.0 s102.6 KiB
ads.pubmatic.com/AdServer/js/pwt/135165/1272/pwt.js92762.0 s182.6 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s73.1 KiB
s-cdn.rmp.rakuten.co.jp/js/vw.js3600.0 s70.7 KiB
media.image.infoseek.co.jp/shared/push_notification/2406_message.png300.0 s56.7 KiB
media.image.infoseek.co.jp/shared/barter/2512_Pandahoro_650x150.png300.0 s38.6 KiB
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2604_masters.jpg300.0 s37.7 KiB
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2604_gw.jpg300.0 s37.3 KiB
media.image.infoseek.co.jp/shared/barter/251001_fds_300x100.png300.0 s27.8 KiB
media.image.infoseek.co.jp/shared/barter/infoseek_kakeibo_start1000_300x100.png300.0 s25.2 KiB
media.image.infoseek.co.jp/shared/barter/250808_RWS_rebatesRNavi_300x100.png300.0 s25.2 KiB
cdn.id5-sync.com/api/1.0/id5PrebidModule.js3600.0 s29.5 KiB
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2604_changes.jpg300.0 s24.6 KiB
media.image.infoseek.co.jp/shared/feature/full_mission/full_300_100_5.jpg300.0 s21.8 KiB
/pagead/managed/js/adsense/m202604160101/show_ads_impl_fy...1209600.0 s177.5 KiB
media.image.infoseek.co.jp/shared/push_notification/notification_300x100.png300.0 s14.7 KiB
media.image.infoseek.co.jp/shared/kuji/news_kuji_300x100.png300.0 s14.4 KiB
c2.taboola.com/nr/rakuten-infoseek/newsroom.js14400.0 s18.1 KiB
/isnews/photos/iza/iza_E3ZUJPOKZ5EQ3EZXSMX5AVRG3M_0-small...600.0 s12.8 KiB
media.image.infoseek.co.jp/isnews/photos/tbs/tbs_2615548_0-small.jpg600.0 s9.5 KiB
/isnews/photos/sponichin/sponichin_20260422_0110_0-small.jpg600.0 s8.5 KiB
/isnews/photos/sponichin/sponichin_20260422_0111_0-small.jpg600.0 s8.2 KiB
/isnews/photos/yomiuri/yomiuri_20260422_gyt1t00078_0-smal...600.0 s7.7 KiB
/isnews/photos/itmedia_nlab/itmedia_nlab_3816299_0-small.jpg600.0 s7.6 KiB
/isnews/photos/yomiuri/yomiuri_20260421_gyt1t00343_0-smal...600.0 s7.1 KiB
r.r10s.jp/com/rat/js/rat-main.js86400.0 s15.7 KiB
www.infoseek.co.jp/pc/img/noimage_203x120_poli-soci-1.0.png604800.0 s57.3 KiB
r.r10s.jp/com/rat/js/ral-1.10.1.js86400.0 s11.6 KiB
media.image.infoseek.co.jp/isnews/photos/bunshun/bunshun_87718_0-small.jpg600.0 s5.0 KiB
r.r10s.jp/com/rat/plugin/media/main.js86400.0 s8.2 KiB
jp.rakuten-static.com/1/grp/banner/js/cmo_dynamic_scid_webcx.js0.0 ms3.2 KiB
www.infoseek.co.jp/03/lib/jquery-3.5.1.min.js604800.0 s30.8 KiB
/pagead/js/r20260421/r20110914/client/one_click_handler_o...1209600.0 s15.5 KiB
jp.rakuten-static.com/1/grp/banner/js/create.js0.0 ms1.5 KiB
www.infoseek.co.jp/pc/img/back_sp-1.0.png604800.0 s13.7 KiB
www.infoseek.co.jp/pc/css/style-3.10.css604800.0 s12.4 KiB
jp.rakuten-static.com/1/js/grp/ftr/js/parm_selector_footer.js0.0 ms1.2 KiB
tshop.r10s.jp/wakui-shop/cabinet/new-thumbnail/asl-093-2022.jpg?fitin=100:10082800.0 s2.8 KiB
pm-widget.taboola.com/rakuten-infoseek/load.js3600.0 s1.4 KiB
/panasonic-store/cabinet/banner/12923490/ne-fs2e_main_007...82800.0 s2.7 KiB
jp.rakuten-static.com/1/js/grp/ftr/jsonp/footer_prm_list.jsonp?rn=2026042201000.0 ms1.1 KiB
www.infoseek.co.jp/03/lib/URI.js-1.19.1.js604800.0 s10.4 KiB
tshop.r10s.jp/panasonic-store/cabinet/banner/thumb/ne-ms4d_000.jpg?fitin=100:10082800.0 s2.5 KiB
tshop.r10s.jp/nyanzaq/cabinet/128/610128.jpg?fitin=100:10082800.0 s2.4 KiB
tshop.r10s.jp/fujisawamishin/cabinet/ozeki/compass1678088620.jpg?fitin=100:10082800.0 s2.2 KiB
tshop.r10s.jp/2pcs/cabinet/img_item14/pe2249_0.jpg?fitin=100:10082800.0 s2.2 KiB
tshop.r10s.jp/weingshop/cabinet/600/we-251a-600.jpg?fitin=100:10082800.0 s2.2 KiB
/wayetto/cabinet/09979914/10551015/imgrc0083822402.jpg?fi...82800.0 s2.1 KiB
/?cpkg_none=%7B%22acc%22%3A461%2C%22aid%22%3A1%2C%22bid%2...0.0 ms877 B
/pagead/js/r20260421/r20110914/client/qs_click_protection...1209600.0 s8.5 KiB
pagead2.googlesyndication.com/pagead/js/r20260421/r20110914/abg_lite_fy2021.js1209600.0 s8.4 KiB
tshop.r10s.jp/fujisawamishin/cabinet/thread/compass1686817362.jpg?fitin=100:10082800.0 s1.9 KiB
/mfabric/cabinet/biiino/item/10775218/imgrc0110766569.jpg...82800.0 s1.8 KiB
media.image.infoseek.co.jp/shared/news/npf/images/sns_app_mail/pc/bg_sprite.png300.0 s606 B
www.infoseek.co.jp/pc/js/searchSuggest-1.2.js604800.0 s4.6 KiB
www.infoseek.co.jp/02/d/js/isnews_common-1.0.js604800.0 s4.5 KiB
www.infoseek.co.jp/pc/css/components/right_navi-1.11.css604800.0 s4.2 KiB
www.infoseek.co.jp/pc/img/header_logo.png604800.0 s3.9 KiB
/newsroom/1.0/rakuten-infoseek/get-action?page.url=https%...0.0 ms396 B
www.infoseek.co.jp/pc/img/icon_point.png604800.0 s3.7 KiB
www.infoseek.co.jp/pc/js/scripts-1.4.js604800.0 s3.6 KiB
www.infoseek.co.jp/pc/css/components/top_header-1.8.css604800.0 s2.9 KiB
www.infoseek.co.jp/pc/css/common-2.4.css604800.0 s2.8 KiB
www.infoseek.co.jp/common/js/interstitial_ads-1.3.js604800.0 s2.6 KiB
www.infoseek.co.jp/pc/js/flash-1.3.js604800.0 s2.1 KiB
www.infoseek.co.jp/03/lib/jquery.url-1.0.js604800.0 s2.1 KiB
/unfilled?datp=sfgRSgDZWRif-_hTF7XkCccRniScz6DR9W_5RLknXY...0.0 ms214 B
/unfilled?datp=8U6y-0qUIxFvBr0WY78yv7B7pjgB3TY8Hpdl2xSpT6...0.0 ms214 B
www.infoseek.co.jp/03/lib/js.cookie-2.2.0.min.js604800.0 s1.7 KiB
www.infoseek.co.jp/pc/js/utilbox-1.4.js604800.0 s1.7 KiB
www.infoseek.co.jp/common/js/indexed_database-1.0.js604800.0 s1.4 KiB
www.infoseek.co.jp/pc/js/login_check-1.4.js604800.0 s1.4 KiB
www.infoseek.co.jp/pc/css/components/interstitial_ads-1.2.css604800.0 s1.4 KiB
www.infoseek.co.jp/pc/img/global_navigation/icon_money-point.png604800.0 s1.3 KiB
www.infoseek.co.jp/pc/css/reset-1.0.css604800.0 s1.2 KiB
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s1.2 KiB
www.infoseek.co.jp/pc/img/pagetop-1.0.png604800.0 s1.2 KiB
www.infoseek.co.jp/pc/js/logout-1.0.js604800.0 s1.2 KiB
/unfilled?datp=QHvG-suW8vgl_W-WfQx9Cbm2oKKN451H20tg9TrRKQ...0.0 ms119 B
/unfilled?datp=ulEguT15m-Bgwpw6I3AtHNWx8DDaGei6ImzUblgyEx...0.0 ms118 B
/unfilled?datp=94maiBR46fMnirDnEwdKjh-zQZ08i7KaiBaPdnA_5h...0.0 ms118 B
/bc?id=28151&datp=Am3Kavx6zWwYnptlqrZCEgbVkktR78HjOnnnekd...0.0 ms118 B
/unfilled?datp=xk0y7uNTVqG47XuFHLhKNjtGWLnBC7mnmWCRtxzoOC...0.0 ms118 B
www.infoseek.co.jp/pc/css/components/top_footer-1.0.css604800.0 s1.1 KiB
www.infoseek.co.jp/pc/img/icon_arrow.svg604800.0 s1.1 KiB
www.infoseek.co.jp/pc/img/global_navigation/icon_topics_white.png604800.0 s1.1 KiB
www.infoseek.co.jp/pc/img/arrow02-1.0.png604800.0 s1.0 KiB
www.infoseek.co.jp/pc/img/global_navigation/icon_ranking_white.png604800.0 s1022 B
www.infoseek.co.jp/pc/img/global_navigation/icon_home_white.png604800.0 s1013 B
www.infoseek.co.jp/pc/img/global_navigation/icon_news_white.png604800.0 s1000 B
www.infoseek.co.jp/common/js/top_rat-1.1.js604800.0 s975 B
www.infoseek.co.jp/pc/img/icon_login.svg604800.0 s957 B
www.infoseek.co.jp/pc/img/arrow_right_black.png604800.0 s890 B
www.infoseek.co.jp/common/js/referrer_check-1.0.js604800.0 s889 B
www.infoseek.co.jp/pc/img/icon_search.svg604800.0 s885 B
www.infoseek.co.jp/pc/img/global_navigation/icon_notification_white-1.0.svg604800.0 s885 B
www.infoseek.co.jp/pc/img/arrow_bottom-1.0.png604800.0 s854 B
www.infoseek.co.jp/pc/img/arrow_bottom_black.png604800.0 s834 B
www.infoseek.co.jp/pc/img/icon_new_circle-1.0.png604800.0 s808 B
www.infoseek.co.jp/pc/css/components/layout_top-1.0.css604800.0 s759 B
www.infoseek.co.jp/pc/js/top_visit_mission-1.0.js604800.0 s729 B
/st?cijs=convusmp&ttype=45&cisd=convusmp&cipid=66361655&c...0.0 ms43 B
/st?cijs=convusmp&ttype=99&cisd=convusmp&cipid=66361655&c...0.0 ms43 B
/pagead/managed/js/adsense/m202604160101/show_ads_impl_fy...1209600.0 s0 B
/pagead/managed/js/adsense/m202604160101/show_ads_impl_fy...1209600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
/pagead/managed/js/activeview/current/ufs_web_display.js3600.0 s0 B
s-cdn.rmp.rakuten.co.jp/js/cd.js3600.0 s0 B
s-cdn.rmp.rakuten.co.jp/js/cd.js3600.0 s0 B
s-cdn.rmp.rakuten.co.jp/js/cd.js3600.0 s0 B
s-cdn.rmp.rakuten.co.jp/js/cd.js3600.0 s0 B
s-cdn.rmp.rakuten.co.jp/js/cd.js3600.0 s0 B
s-cdn.rmp.rakuten.co.jp/js/cd.js3600.0 s0 B
/pagead/js/r20260421/r20110914/client/qs_click_protection...1209600.0 s0 B
/pagead/js/r20260421/r20110914/client/window_focus_fy2021.js1209600.0 s0 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:29.087 source:map[column:265327 line:1 type:source-location url:https://cdn.taboola.com/libtrc/rakuten-infoseek/loader.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:0.568 source:map[column:51866 line:1 type:source-location url:https://www.infoseek.co.jp/03/lib/jquery-3.5.1.min.js urlProvider:network]] map[reflowTime:1.581 source:map[column:51844 line:1 type:source-location url:https://www.infoseek.co.jp/03/lib/jquery-3.5.1.min.js urlProvider:network]] map[reflowTime:3.617 source:map[type:text value:[unattributed]]] map[reflowTime:0.23 source:map[column:3557 line:2 type:source-location url:https://cdnjs.cloudflare.com/ajax/libs/lazysizes/5.2.2/lazysizes.min.js urlProvider:network]] map[reflowTime:0.97 source:map[column:237248 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js urlProvider:network]] map[reflowTime:2.044 source:map[column:48581 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js urlProvider:network]] map[reflowTime:0.768 source:map[column:85979 line:1 type:source-location url:https://www.infoseek.co.jp/03/lib/jquery-3.5.1.min.js urlProvider:network]] map[reflowTime:13.455 source:map[column:785431 line:0 type:source-location url:https://cdn.taboola.com/libtrc/rakuten-infoseek/loader.js urlProvider:network]] map[reflowTime:2.85 source:map[column:265799 line:0 type:source-location url:https://cdn.taboola.com/libtrc/rakuten-infoseek/loader.js urlProvider:network]] map[reflowTime:0.548 source:map[column:241855 line:18 type:source-location url:https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js urlProvider:network]] map[reflowTime:87.197 source:map[column:463327 line:0 type:source-location url:https://cdn.taboola.com/libtrc/rakuten-infoseek/loader.js urlProvider:network]] map[reflowTime:31.565 source:map[column:466484 line:0 type:source-location url:https://cdn.taboola.com/libtrc/rakuten-infoseek/loader.js urlProvider:network]] map[reflowTime:27.343 source:map[column:468349 line:0 type:source-location url:https://cdn.taboola.com/libtrc/rakuten-infoseek/loader.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
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_probb.png188.0 KiB173.4 KiB
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_ohtani.png177.9 KiB163.2 KiB
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
media.image.infoseek.co.jp/shared/barter/feature_sq_2510_sousai2025.jpg160.1 KiB145.5 KiB
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2601_iran.jpg112.1 KiB97.5 KiB
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
/shared/feature/feature_og/feature_sq_2508_entertainment.jpg87.6 KiB73.0 KiB
li > a > div.breaking-news--image > div.thumb-img li > a > div.breaking-news--image > div.thumb-img
www.infoseek.co.jp/pc/img/noimage_203x120_poli-soci-1.0.png56.7 KiB52.7 KiB
国際 div.genre-navigation-1 > ul.genre-navigation-1__level1 > li.genre-navigation-1__level1-world > a
tpc.googlesyndication.com/daca_images/simgad/1784385542982124685647.1 KiB35.3 KiB
お買いものパンダ占い div.co-Widget > div.side > a > img
media.image.infoseek.co.jp/shared/barter/2512_Pandahoro_650x150.png38.1 KiB33.6 KiB
「エントリー&物件検索で抽選でポイントゲット! div.side > div > a > img
media.image.infoseek.co.jp/shared/barter/251001_fds_300x100.png27.3 KiB22.4 KiB
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2604_masters.jpg36.9 KiB22.2 KiB
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2604_gw.jpg36.8 KiB22.2 KiB
【家計簿アプリ】エントリー&条件達成で最大1,100ポイント! div.side > div > a > img
media.image.infoseek.co.jp/shared/barter/infoseek_kakeibo_start1000_300x100.png24.7 KiB19.8 KiB
楽天ウェブ検索 div.side > div > a > img
media.image.infoseek.co.jp/shared/barter/250808_RWS_rebatesRNavi_300x100.png24.7 KiB19.8 KiB
Infoseekミッション div.side > div > a > img
media.image.infoseek.co.jp/shared/feature/full_mission/full_300_100_5.jpg21.0 KiB16.1 KiB
プッシュ機能がリリースされました div.side > div > a > img
media.image.infoseek.co.jp/shared/push_notification/notification_300x100.png14.2 KiB9.2 KiB
Infokseekラッキーくじ div.side > div > a > img
media.image.infoseek.co.jp/shared/kuji/news_kuji_300x100.png14.0 KiB9.1 KiB
a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election a > div.left-photo-list__table > div.left-photo-list__image_election > div.thumb_img_election
media.image.infoseek.co.jp/shared/feature/feature_og/feature_sq_2604_changes.jpg23.7 KiB9.1 KiB
Rakuten Mobile div#headerAd1Cmp > div#mkdiv_header_pitari > a#cmo_pitari_banner > img
/block/d40535ac09aac0ef32f8a23b8bb8e04bc2e8f9d6b0981fa98a...14.8 KiB8.7 KiB
li > a > div.top-ranking-list__image > div.thumb_img li > a > div.top-ranking-list__image > div.thumb_img
/isnews/photos/iza/iza_E3ZUJPOKZ5EQ3EZXSMX5AVRG3M_0-small...12.3 KiB6.5 KiB
Image for Taboola Advertising Unit div.videoCube > a.item-thumbnail-href > div.thumbBlock_holder > span.thumbBlock
/taboola/image/fetch/f_jpg,q_auto,h_115,w_160,c_fill,g_fa...8.6 KiB5.7 KiB
Image for Taboola Advertising Unit div.videoCube > a.item-thumbnail-href > div.thumbBlock_holder > span.thumbBlock
/taboola/image/fetch/f_jpg,q_auto,h_115,w_160,c_fill,g_fa...8.0 KiB5.1 KiB
Image for Taboola Advertising Unit div.videoCube > a.item-thumbnail-href > div.thumbBlock_holder > span.thumbBlock
/taboola/image/fetch/f_jpg,q_auto,h_120,w_120,c_fill,g_fa...7.3 KiB4.9 KiB
li > a > div.top-ranking-list__image > div.thumb_img li > a > div.top-ranking-list__image > div.thumb_img
media.image.infoseek.co.jp/isnews/photos/tbs/tbs_2615548_0-small.jpg9.0 KiB4.1 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:1037.056 label:Time to first byte subpart:timeToFirstByte] map[duration:2660.888 label:Resource load delay subpart:resourceLoadDelay] map[duration:6.531 label:Resource load duration subpart:resourceLoadDuration] map[duration:57.372 label:Element render delay subpart:elementRenderDelay]]
lhId: page-17-IMG
nodeLabel: Rakuten Mobile
path: 1,HTML,1,BODY,1,DIV,6,DIV,5,DIV,1,A,0,IMG
selector: div#headerAd1Cmp > div#mkdiv_header_pitari > a#cmo_pitari_banner > img
snippet: <img alt="Rakuten Mobile" src="https://cdn.rmc.contents.rakuten.co.jp/block/d40535ac09aac0ef32f8a23b8bb8e…" width="1440" height="50" style="width: 100%; height: auto; max-width: 1440px;">

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-17-IMG
nodeLabel: Rakuten Mobile
path: 1,HTML,1,BODY,1,DIV,6,DIV,5,DIV,1,A,0,IMG
selector: div#headerAd1Cmp > div#mkdiv_header_pitari > a#cmo_pitari_banner > img
snippet: <img alt="Rakuten Mobile" src="https://cdn.rmc.contents.rakuten.co.jp/block/d40535ac09aac0ef32f8a23b8bb8e…" width="1440" height="50" style="width: 100%; height: auto; max-width: 1440px;">

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

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: 971 ms
URLTime Spent
infoseek.co.jp/971 ms
www.infoseek.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: 190 ms 2.3 MiB
URLTransfer SizeEst Savings
cdn.taboola.com/libtrc/rakuten-infoseek/loader.js308.4 KiB143.5 KiB
/pagead/managed/js/adsense/m202604160101/show_ads_impl_fy...177.5 KiB134.0 KiB
/pagead/managed/js/adsense/m202604160101/show_ads_impl_fy...177.5 KiB134.0 KiB
/pagead/managed/js/adsense/m202604160101/show_ads_impl_fy...177.5 KiB133.4 KiB
cpt.geniee.jp/hb/v1/lib/prebid-v9.50.0-0eb62f07.js210.2 KiB124.6 KiB
ads.pubmatic.com/AdServer/js/pwt/135165/1272/pwt.js150.2 KiB96.7 KiB
/pagead/managed/js/gpt/m202604160201/pubads_impl.js187.7 KiB96.7 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js120.0 KiB87.1 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js120.0 KiB87.1 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js120.0 KiB87.1 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js120.0 KiB87.1 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js120.0 KiB87.1 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js120.0 KiB87.1 KiB
s-cdn.rmp.rakuten.co.jp/js/cd.js120.0 KiB86.9 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js102.3 KiB71.3 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js102.3 KiB71.3 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js102.3 KiB71.3 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js102.3 KiB71.3 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js102.3 KiB71.3 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js102.3 KiB71.3 KiB
s-cdn.rmp.rakuten.co.jp/js/aa.js102.3 KiB55.0 KiB
cpt.geniee.jp/hb/v1/lib/gnshbrequest-v5.11.6.js78.8 KiB48.7 KiB
fundingchoicesmessages.google.com/i/7727?ers=368.8 KiB37.6 KiB
/sdk/webcx-web-blocks/2.73.0/webcx-web-blocks.production....99.2 KiB36.3 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.1 KiB
/pagead/managed/js/activeview/current/ufs_web_display.js73.1 KiB31.1 KiB
s-cdn.rmp.rakuten.co.jp/js/vw.js70.6 KiB30.6 KiB
pagead2.googlesyndication.com/pagead/js/adsbygoogle.js54.2 KiB27.3 KiB
/pagead/js/adsbygoogle.js?client=ca-pub-072268090879078954.2 KiB27.3 KiB
/pagead/js/adsbygoogle.js?client=ca-pub-072268090879078954.2 KiB27.1 KiB
securepubads.g.doubleclick.net/tag/js/gpt.js34.4 KiB24.0 KiB
securepubads.g.doubleclick.net/tag/js/gpt.js34.4 KiB24.0 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 Evaluation2.1 s
Other587 ms
Style & Layout360 ms
Script Parsing & Compilation236 ms
Rendering105 ms
Parse HTML & CSS38 ms
Garbage Collection34 ms

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.8 KiB
URLTransfer SizeEst Savings
www.infoseek.co.jp/pc/css/style-3.10.css12.4 KiB2.8 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 2.1 KiB
URLTransfer SizeEst Savings
www.infoseek.co.jp/02/d/js/isnews_common-1.0.js3.9 KiB2.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 11.1 KiB
URLTransfer SizeEst Savings
www.infoseek.co.jp/pc/css/style-3.10.css11.8 KiB11.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
ウェブPush通知を受け取ろう! div.interstitial-modal-container > div > a > img
media.image.infoseek.co.jp/shared/push_notification/2406_message.png
お買いものパンダ占い div.co-Widget > div.side > a > img
media.image.infoseek.co.jp/shared/barter/2512_Pandahoro_650x150.png
プッシュ機能がリリースされました div.side > div > a > img
media.image.infoseek.co.jp/shared/push_notification/notification_300x100.png
Infoseekミッション div.side > div > a > img
media.image.infoseek.co.jp/shared/feature/full_mission/full_300_100_5.jpg
Infokseekラッキーくじ div.side > div > a > img
media.image.infoseek.co.jp/shared/kuji/news_kuji_300x100.png
楽天ウェブ検索 div.side > div > a > img
media.image.infoseek.co.jp/shared/barter/250808_RWS_rebatesRNavi_300x100.png
「エントリー&物件検索で抽選でポイントゲット! div.side > div > a > img
media.image.infoseek.co.jp/shared/barter/251001_fds_300x100.png
【家計簿アプリ】エントリー&条件達成で最大1,100ポイント! div.side > div > a > img
media.image.infoseek.co.jp/shared/barter/infoseek_kakeibo_start1000_300x100.png
div#globalNaviCmp > div.global-nav-container > a#notification_icon > img div#globalNaviCmp > div.global-nav-container > a#notification_icon > img
www.infoseek.co.jp/pc/img/global_navigation/icon_notification_white-1.0.svg
スタッフブログ ul.official-account > li.official-account__officialblog > a > img.lazyload
公式X ul.official-account > li.official-account__x > a > img.lazyload
無料メールマガジン div.official-section > div.official-freemail > div.official-freemail__image > img.lazyload
夕刊Infoseekニュース ul.official-freemail__list > li > a > img.lazyload
夜ふかしInfoseekニュース ul.official-freemail__list > li > a > img.lazyload
週刊ランキングニュース ul.official-freemail__list > li > a > img.lazyload
tr > td > span > img.lazyload tr > td > span > img.lazyload

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
Modern HTTP
Optimize viewport for mobile
User Timing marks and measures 41 user timings
Avoid long main-thread tasks 6 long tasks found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 270 ms
Server Backend Latencies 5,240 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 260 ms
Avoid large layout shifts 4 layout shifts found
INP breakdown
Avoid non-composited animations
91

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.

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
総合 div.genre-navigation-1 > ul.genre-navigation-1__level1 > li.genre-navigation-1__level1-all > a
総合 div.genre-tab > ul > li.genre-tab__category-all > a
by Taboola div.trc-widget-footer > div.logoDiv > a.trc_desktop_attribution_link > span
by Taboola div.trc-widget-footer > div.logoDiv > a.trc_desktop_attribution_link > span
© Rakuten Group, Inc. footer.footer-container > div.s3-section > div.s3-copyright-bar > p

Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
提供元企業 div#contentsCopyrightCmp > div.footer-copyright > p > a

These are opportunities to improve the legibility of your content.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
夕刊Infoseekニュース div.official-freemail > ul.official-freemail__list > li > a
夜ふかしInfoseekニュース div.official-freemail > ul.official-freemail__list > li > a
週刊ランキングニュース div.official-freemail > ul.official-freemail__list > li > a

These items highlight common accessibility best practices.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
(PR) span.video-label-box > span.branding > div.logoDiv > a.trc_desktop_disclosure_link
by Taboola div#trc_wrapper_5384641271 > div.trc-widget-footer > div.logoDiv > a.trc_desktop_attribution_link
by Taboola div#trc_wrapper_1317369991 > div.trc-widget-footer > div.logoDiv > a.trc_desktop_attribution_link
Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
Input buttons have discernible text.
Form elements have associated labels
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
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
`<frame>` or `<iframe>` elements have a title
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links have a discernible name
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
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 with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
The page contains a heading, skip link, or landmark region
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 type="image">` elements have `[alt]` text
The document does not use `<meta http-equiv="refresh">`
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`<object>` elements have alternate text
Select elements have associated label elements.
Skip links are focusable.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
77

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Topics

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
Access to fetch at 'https://aladdin.genieesspv.jp/yie/ld/api/ad_call/v2?zoneid=1584462&cb=96938086785&charset=UTF-8&loc=https%3A%2F%2Fwww.infoseek.co.jp%2F&ct0=undefined&referer=undefined&topframe=1&cur=JPY&requestid=4c7c2db195c73e8&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&ib=1&tmpval=%7B%22loctype%22%3A%22type1%22%2C%22pvId%22%3A%22022c51f3-e552-41b9-86f9-bf7eb7424953%22%7D&gpid=%2F150154%2F1574635&rl_pid=9604&fl_pr=1&title=Infoseek%255B%25E3%2582%25A4%25E3%2583%25B3%25E3%2583%2595%25E3%2582%25A9%25E3%2582%25B7%25E3%2583%25BC%25E3%2582%25AF%255D%2520-%2520%25E6%25A5%25BD%25E5%25A4%25A9%25E3%2581%258C%25E9%2581%258B%25E5%2596%25B6%25E3%2581%2599%25E3%2582%258B%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://www.infoseek.co.jp' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
Failed to load resource: net::ERR_FAILED
Uncaught TypeError: Cannot set properties of null (setting 'innerHTML')
Uses HTTPS
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
92

SEO

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

Crawling and Indexing

Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
ポイントを貯める div#gh-body > div > div#point-link > a
楽天サービス一覧 div#gh-body > div > div#service-tooltip > a.service-list-btn
地域選択 div.weather > div.toggle > p.button > a
北海道 div.listArea > ul#weather_area_east > li > a
道北 li > ul > li > a
道央 li > ul > li > a
道東 li > ul > li > a
道南 li > ul > li > a
東北 div.listArea > ul#weather_area_east > li > a
青森県 li > ul > li > a
秋田県 li > ul > li > a
岩手県 li > ul > li > a
宮城県 li > ul > li > a
山形県 li > ul > li > a
福島県 li > ul > li > a
関東 div.listArea > ul#weather_area_east > li > a
茨城県 li > ul > li > a
栃木県 li > ul > li > a
群馬県 li > ul > li > a
埼玉県 li > ul > li > a
東京都 li > ul > li > a
千葉県 li > ul > li > a
神奈川県 li > ul > li > a
甲信越 div.listArea > ul#weather_area_east > li > a
長野県 li > ul > li > a
山梨県 li > ul > li > a
新潟県 li > ul > li > a
北陸 div.listArea > ul#weather_area_east > li > a
富山県 li > ul > li > a
石川県 li > ul > li > a
福井県 li > ul > li > a
東海 div.listArea > ul#weather_area_west > li > a
静岡県 li > ul > li > a
愛知県 li > ul > li > a
岐阜県 li > ul > li > a
三重県 li > ul > li > a
近畿 div.listArea > ul#weather_area_west > li > a
滋賀県 li > ul > li > a
京都府 li > ul > li > a
大阪府 li > ul > li > a
兵庫県 li > ul > li > a
奈良県 li > ul > li > a
和歌山県 li > ul > li > a
中国 div.listArea > ul#weather_area_west > li > a
岡山県 li > ul > li > a
広島県 li > ul > li > a
島根県 li > ul > li > a
鳥取県 li > ul > li > a
山口県 li > ul > li > a
四国 div.listArea > ul#weather_area_west > li > a
徳島県 li > ul > li > a
香川県 li > ul > li > a
愛媛県 li > ul > li > a
高知県 li > ul > li > a
九州・沖縄 div.listArea > ul#weather_area_west > li > a
福岡県 li > ul > li > a
大分県 li > ul > li > a
長崎県 li > ul > li > a
佐賀県 li > ul > li > a
熊本県 li > ul > li > a
宮崎県 li > ul > li > a
鹿児島県 li > ul > li > a
沖縄県 li > ul > li > a

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

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

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