Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.Detailed Report
Audit breakdown by category with detailed findings.
Performance
Insights
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
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.
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.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est 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.png | 188.0 KiB | 173.4 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.png | 177.9 KiB | 163.2 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.jpg | 160.1 KiB | 145.5 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.jpg | 112.1 KiB | 97.5 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.jpg | 87.6 KiB | 73.0 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.png | 56.7 KiB | 52.7 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/17843855429821246856 | 47.1 KiB | 35.3 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.png | 38.1 KiB | 33.6 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.png | 27.3 KiB | 22.4 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.jpg | 36.9 KiB | 22.2 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.jpg | 36.8 KiB | 22.2 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.png | 24.7 KiB | 19.8 KiB |
楽天ウェブ検索 div.side > div > a > img | media.image.infoseek.co.jp/shared/barter/250808_RWS_rebatesRNavi_300x100.png | 24.7 KiB | 19.8 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.jpg | 21.0 KiB | 16.1 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.png | 14.2 KiB | 9.2 KiB |
Infokseekラッキーくじ div.side > div > a > img | media.image.infoseek.co.jp/shared/kuji/news_kuji_300x100.png | 14.0 KiB | 9.1 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.jpg | 23.7 KiB | 9.1 KiB |
Rakuten Mobile div#headerAd1Cmp > div#mkdiv_header_pitari > a#cmo_pitari_banner > img | /block/d40535ac09aac0ef32f8a23b8bb8e04bc2e8f9d6b0981fa98a... | 14.8 KiB | 8.7 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 KiB | 6.5 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 KiB | 5.7 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 KiB | 5.1 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 KiB | 4.9 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.jpg | 9.0 KiB | 4.1 KiB |
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time 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.
Performance issues directly impact user engagement and conversion rates.
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.
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.
Performance issues directly impact user engagement and conversion rates.
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Performance issues directly impact user engagement and conversion rates.
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 2.1 s |
| Other | 587 ms |
| Style & Layout | 360 ms |
| Script Parsing & Compilation | 236 ms |
| Rendering | 105 ms |
| Parse HTML & CSS | 38 ms |
| Garbage Collection | 34 ms |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.infoseek.co.jp/pc/css/style-3.10.css | 12.4 KiB | 2.8 KiB |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.infoseek.co.jp/02/d/js/isnews_common-1.0.js | 3.9 KiB | 2.1 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.infoseek.co.jp/pc/css/style-3.10.css | 11.8 KiB | 11.1 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
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.
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.
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.
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.
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.
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 |
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| Topics | cpt.geniee.jp/hb/v1/lib/prebid-v9.50.0-0eb62f07.js line 106, col 1159 |
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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
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 | |
jp.rakuten-static.com/1/js/grp/ftr/js/parm_selector_footer.js line 61, col 58 | Uncaught TypeError: Cannot set properties of null (setting 'innerHTML') |
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
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.