United Stated · New York Completed: Apr 15, 2026 23:03 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 71 / 100
Based on 8 categories, 0 sections
Decent speed, but optimizing further could improve engagement.
Several missing protections leave your users and data exposed.
Several issues make your site difficult for assistive technology users.
Well-optimized for search — your content is discoverable.
Good server performance with room for optimization.
Mostly compliant — a few items need attention.
Rich content metadata — your pages look great everywhere.
Reasonable footprint with room for optimization.
The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.
Weights reflect general web best practices. Individual needs may differ.
Content-Security-Policy header is missing
Security gaps expose your site and users to attacks, eroding trust.
HSTS header is missing
Security gaps expose your site and users to attacks, eroding trust.
No Content-Security-Policy header found
Security gaps expose your site and users to attacks, eroding trust.
13 image-only link(s) without alt text
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
6 link(s) with no accessible text
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
High impact, low effort — start here.
High impact, requires investment.
Small gains, minimal effort.
Nothing in this quadrant — good news.
Low impact, high effort — do last.
Nothing in this quadrant — good news.
[](https://beavercheck.com/results/b722cb8b-a9ba-457e-92a4-0e55f8898315)<a href="https://beavercheck.com/results/b722cb8b-a9ba-457e-92a4-0e55f8898315"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fnikkei.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fnikkei.comThis badge auto-updates with your latest scan result.
Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.
¥36,000 investment → ¥557,703/month returns + JPY 100,000,000 risk avoided
¥36,000
4h · 5 findings
¥557,703 /mo
~¥6,692,431 / year
JPY 100,000,000
if kept compliant
¥12,000 — in quick wins — start here for the fastest payback
Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.
4.5 developer hours at ¥8000/hr
Based on Japan rates (¥8000/hr)
Start here for the best return on investment
¥8,333,433 / month at risk
~¥100,001,192 / year if left unfixed
¥100,000,000
+1 more
¥99 /mo
8321.1 MB/mo × 11.940 JPY/GB
Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
Fix 5 critical issues to capture this value
Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.
Your site's LCP: → estimated after fixes.
These are estimates based on industry research — actual results vary
Your data stays in your browser — nothing is sent to our servers
Thanks for your feedback!
We'll use a cached audit if available, or offer to scan.
Industry-standard audits powered by Google Lighthouse.
Key metrics that affect user experience.
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
3.00 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.11 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
745 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.014
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.90 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
12.71 s
Audit breakdown by category with detailed findings.
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
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
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.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| partsa.nikkei.com/parts/ds/images/topic/banner_us_iran_tension_202602_sp.jpg | 0.0 ms | 369.4 KiB |
| connect.facebook.net/en_US/fbevents.js | 1200.0 s | 96.4 KiB |
| /signals/config/517132292271830?v=2.9.298&r=stable&domain... | 1200.0 s | 44.1 KiB |
| cdn.speedcurve.com/js/lux.js?id=18491751 | 3600.0 s | 11.3 KiB |
| nkispa.nikkei.com/fh/showad_d094700e.js | 0.0 ms | 8.5 KiB |
| partsa.nikkei.com/static/nkis/js/foneH.js | 60.0 s | 2.7 KiB |
| nkispa.nikkei.com/fh/showad_d094700e_d.js | 0.0 ms | 2.1 KiB |
| js.rtoaster.jp/Rtoaster.js | 604800.0 s | 4.5 KiB |
| /tr/?id=517132292271830&ev=PageView&dl=https%3A%2F%2Fwww.... | 0.0 ms | 19 B |
| js.rtoaster.jp/Rtoaster.js | 604800.0 s | 0 B |
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.
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 | |
|---|---|---|---|
イラン軍事衝突 ニュース・解説はこちら div.container_c199s2h > a.link_lp4r7xz > picture.picture_p1geunww > img | partsa.nikkei.com/parts/ds/images/topic/banner_us_iran_tension_202602_sp.jpg | 368.5 KiB | 356.5 KiB |
div.image_iq1cuxq > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_iq1cuxq > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2898455015042026000000-... | 45.8 KiB | 40.9 KiB |
死亡した男児の自宅周辺の警戒にあたる警察官と集まった報道陣（15日、京都府南丹市） div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899595015042026000000-... | 40.8 KiB | 35.9 KiB |
熊本地震では少なくとも10病院が全入院患者の避難を余儀なくされた（2016年4月、熊本市） div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2874388010042026000000-... | 35.1 KiB | 30.4 KiB |
3週間かけ欧州の5カ国を回った div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2814767027032026000000-... | 32.1 KiB | 27.8 KiB |
トランプ米大統領㊧と話すバンス副大統領（3月、米ワシントン）=ロイター div.image_iq1cuxq > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899995016042026000000-... | 30.3 KiB | 26.3 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2866001008042026000000-... | 27.8 KiB | 24.1 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899416015042026000000-... | 27.0 KiB | 23.4 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2897560015042026000000-... | 26.0 KiB | 22.5 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2893912014042026000000-... | 25.2 KiB | 21.8 KiB |
ボスポラス海峡を通過するロシア船籍の原油タンカー=ロイター div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899924015042026000000-... | 25.0 KiB | 21.6 KiB |
第一三共ヘルスケアの「ロキソニンＳ」など div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2896557015042026000000-... | 23.0 KiB | 19.9 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2879173010042026000000-... | 21.9 KiB | 19.0 KiB |
税制改正が働く人のランチ事情に変化をもたらしている div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2887782013042026000000-... | 20.1 KiB | 17.4 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2890922014042026000000-... | 19.2 KiB | 16.6 KiB |
ホルムズ海峡の通過を目指す船舶は情勢に翻弄される（3月、アラブ首長国連邦東部ラス・アル・ハイマ）=ロイター div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2879376010042026000000-... | 17.9 KiB | 15.5 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2835358001042026000000-... | 17.6 KiB | 15.3 KiB |
メルトリーが提供する「Days AI」では生成AIを使って自分のオリジナルキャラクター「うちの子」をつくって遊べる div.picture_pvxcl1b > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2733237010032026000000-... | 51.7 KiB | 15.0 KiB |
AI活用で大組織に勝つ 逆転の方法論 div.normalStylesPictureContainer_n1mtmphx > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2890100014042026000000-... | 19.6 KiB | 14.7 KiB |
a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2863302008042026000000-... | 30.1 KiB | 13.8 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2778776019032026000000-... | 15.0 KiB | 13.0 KiB |
日本経済新聞トップ div.headerToolNavContainer_h1itz95y > div.head_hugy8te > a.headLogo_hniq3e8 > img.logoImage_likza8z | www.nikkei.com/.resources/k-components/logo/masthead.rev-b8cf30e.png | 9.4 KiB | 7.5 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.
| URL | Transfer Size | Duration |
|---|---|---|
| www.nikkei.com/.resources/k2-top/main.rev-6000bdcd.css | 25.9 KiB | 150 ms |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| nikkei.com/ | 892 ms |
| www.nikkei.com/ | 0.0 ms |
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| www.nikkei.com/ | 3.1 s |
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.
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=AW-1024704716&cx=c>m=4e64e1h1&bs=ctrl2 | 144.2 KiB | 55.5 KiB |
| www.googletagmanager.com/gtag/js?id=G-PXS8451SBG | 173.3 KiB | 55.1 KiB |
| www.nikkei.com/.resources/k2-top/main.rev-727ad7f4.js | 104.0 KiB | 39.6 KiB |
| connect.facebook.net/en_US/fbevents.js | 96.3 KiB | 32.4 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| www.nikkei.com/ | 2.2 s | 21 ms | 4.0 ms |
| Unattributable | 1.1 s | 37 ms | 0.0 ms |
| www.googletagmanager.com/gtag/js?id=G-PXS8451SBG | 620 ms | 497 ms | 69 ms |
| www.nikkei.com/.resources/k2-top/main.rev-727ad7f4.js | 454 ms | 414 ms | 8.9 ms |
| www.nikkei.com/.resources/tracking/static/atlas/atj.min.rev-c6c444.js | 370 ms | 126 ms | 2.8 ms |
| www.googletagmanager.com/gtag/js?id=AW-1024704716&cx=c>m=4e64e1h1&bs=ctrl2 | 321 ms | 260 ms | 52 ms |
| /signals/config/517132292271830?v=2.9.298&r=stable&domain... | 171 ms | 145 ms | 24 ms |
| connect.facebook.net/en_US/fbevents.js | 164 ms | 119 ms | 44 ms |
| /.resources/k-components/rtoaster/view.rev-e54ba78.html?d... | 56 ms | 31 ms | 3.0 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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Style & Layout | 1.9 s |
| Script Evaluation | 1.9 s |
| Other | 1.4 s |
| Script Parsing & Compilation | 230 ms |
| Parse HTML & CSS | 166 ms |
| Rendering | 128 ms |
| Garbage Collection | 27 ms |
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| .k-button{-webkit-appearance:none;-moz-appearance:none;appearance:none;-webkit-tap-highlight-color:… | 14.6 KiB | 14.6 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 | |
|---|---|
イラン軍事衝突 ニュース・解説はこちら div.container_c199s2h > a.link_lp4r7xz > picture.picture_p1geunww > img | partsa.nikkei.com/parts/ds/images/topic/banner_us_iran_tension_202602_sp.jpg |
Think! article.container_c1e5f6rx > div.textContainer_t1v5liye > div.metaContainer_mvb5xl6 > img.icon_i7atnwz | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaContainer_m1xd4ucj > img.icon_i19xqikn | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
PR span.commonStylesMetaText_c1f6i0vj > span.prContainer_p1qo25si > i.iconStyle_i11t78hf > img | www.nikkei.com/.resources/k-components/icon/pr.rev-3437e86.svg |
PR span.commonStylesMetaText_c1f6i0vj > span.prContainer_p1qo25si > i.iconStyle_i11t78hf > img | www.nikkei.com/.resources/k-components/icon/pr.rev-3437e86.svg |
会員限定記事 div.textContainer_t1v5liye > h2.title_t7qfgoq > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t1agme82 > h2.title_tlmhwm6 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 a.titleText_tnnopfn > h2.title_t8xcrjm > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 a.titleText_tnnopfn > h2.title_t8xcrjm > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.textContainer_ta98o9y > h2.title_te6hgf2 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.textContainer_ta98o9y > h2.title_te6hgf2 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.textContainer_ta98o9y > h2.title_te6hgf2 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
動画あり div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/video.rev-631012e.svg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
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 |
|---|
お申し込み nav.headNavs_h1men6qz > k2-kite-header-account-nav.accountNav_a1i8t0o1 > a.accountNavItem_a1pb0gw3 > span.buttonText_bhlvih7 |
九州大学大学院比較社会文化研究院 教授 div.content_c1489jjx > a.container_cbbf1ny > span.indent_iiuxb5w > span.headline_h1axq0vo |
チームボックス代表取締役/元早稲田大学ラグビー部監督 div.content_c1489jjx > a.container_cbbf1ny > span.indent_iiuxb5w > span.headline_h1axq0vo |
UBS証券 シニアアナリスト/コンシューマー・セクター ジャパン・ヘッド div.content_c1489jjx > a.container_cbbf1ny > span.indent_iiuxb5w > span.headline_h1axq0vo |
These are opportunities to improve the legibility of your content.
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h |
div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h |
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.
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 |
|---|
お申し込み div.head_hugy8te > nav.headNavs_h1men6qz > k2-kite-header-account-nav.accountNav_a1i8t0o1 > a.accountNavItem_a1pb0gw3 |
ログイン div.head_hugy8te > nav.headNavs_h1men6qz > k2-kite-header-account-nav.accountNav_a1i8t0o1 > a.accountNavItem_a1pb0gw3 |
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 |
|---|
エプソン、新中計に高まらぬ期待「引き算」不足のROIC経営 article.container_clrflg9 > div.textContainer_t10uyfy9 > div.articleContainer_axihtka > a.titleText_tnnopfn |
OpenAI、ノルウェーでAIインフラ投資計画「スターゲート」撤退 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
三菱マテが小名浜で銅鉱石由来の製錬停止非鉄大手が探る3つの生存策 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
千葉銀・米本頭取、ROE向上なら「県外再編も選択肢」首都圏を重視 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
トレーディング業務で米銀大もうけ規制緩和の追い風 article.container_clrflg9 > div.textContainer_t10uyfy9 > div.articleContainer_axihtka > a.titleText_tnnopfn |
日経平均株価、米イラン交渉の進展期待が追い風（先読み株式相場） div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
スニーカー企業がAI企業に「くら替え」米オールバーズ株7倍に急騰 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
拡大するFX投資3月の建玉残高は過去最高、中東緊迫で取引活発 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
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 |
|---|---|
| AttributionReporting | connect.facebook.net/en_US/fbevents.js line 279, col 769 |
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.
Industry-standard audits powered by Google Lighthouse. — Desktop
Key metrics that affect user experience. — Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
796 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.04 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
179 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.274
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.72 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
2.96 s
Audit breakdown by category with detailed findings.
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
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
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.
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.
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.
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.
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.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| partsa.nikkei.com/parts/ds/images/topic/banner_us_iran_tension_202602_pc.jpg | 0.0 ms | 571.1 KiB |
| nkispa.nikkei.com/fh/227246.jpg | 0.0 ms | 138.4 KiB |
| connect.facebook.net/en_US/fbevents.js | 1200.0 s | 96.4 KiB |
| nkispa.nikkei.com/fh/227260 | 0.0 ms | 44.2 KiB |
| /signals/config/517132292271830?v=2.9.298&r=stable&domain... | 1200.0 s | 44.1 KiB |
| cdn.speedcurve.com/js/lux.js?id=18491751 | 3600.0 s | 11.3 KiB |
| nkispa.nikkei.com/fh/showad_d094700e.js | 0.0 ms | 8.5 KiB |
| partsa.nikkei.com/static/nkis/js/foneH.js | 60.0 s | 2.7 KiB |
| nkispa.nikkei.com/fh/showad_d094700e_d.js | 0.0 ms | 2.1 KiB |
| js.rtoaster.jp/Rtoaster.js | 604800.0 s | 4.5 KiB |
| /tr/?id=517132292271830&ev=PageView&dl=https%3A%2F%2Fwww.... | 0.0 ms | 16 B |
| js.rtoaster.jp/Rtoaster.js | 604800.0 s | 0 B |
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 | |
|---|---|---|---|
イラン軍事衝突 ニュース・解説はこちら div.container_c199s2h > a.link_lp4r7xz > picture.picture_p1geunww > img | partsa.nikkei.com/parts/ds/images/topic/banner_us_iran_tension_202602_pc.jpg | 570.0 KiB | 561.6 KiB |
body > a > img body > a > img | nkispa.nikkei.com/fh/227246.jpg | 138.1 KiB | 125.9 KiB |
a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2863302008042026000000-... | 60.4 KiB | 51.4 KiB |
div.image_iq1cuxq > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_iq1cuxq > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2898455015042026000000-... | 45.8 KiB | 39.7 KiB |
死亡した男児の自宅周辺の警戒にあたる警察官と集まった報道陣（15日、京都府南丹市） div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899595015042026000000-... | 40.8 KiB | 38.4 KiB |
メルトリーが提供する「Days AI」では生成AIを使って自分のオリジナルキャラクター「うちの子」をつくって遊べる div.picture_pvxcl1b > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2733237010032026000000-... | 51.7 KiB | 37.0 KiB |
熊本地震では少なくとも10病院が全入院患者の避難を余儀なくされた（2016年4月、熊本市） div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2874388010042026000000-... | 35.1 KiB | 32.8 KiB |
3週間かけ欧州の5カ国を回った div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2814767027032026000000-... | 32.1 KiB | 30.0 KiB |
body > a > img body > a > img | nkispa.nikkei.com/fh/227260 | 44.0 KiB | 29.6 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2866001008042026000000-... | 27.8 KiB | 26.0 KiB |
セイコーエプソンの吉田潤吉社長は３月に中期経営計画を発表した a > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2861761007042026000000-... | 30.7 KiB | 25.9 KiB |
モルガン・スタンレー株は最高値を更新=ロイター a > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899975016042026000000-... | 30.4 KiB | 25.6 KiB |
トランプ米大統領㊧と話すバンス副大統領（3月、米ワシントン）=ロイター div.image_iq1cuxq > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899995016042026000000-... | 30.3 KiB | 25.3 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899416015042026000000-... | 27.0 KiB | 25.2 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2897560015042026000000-... | 26.0 KiB | 24.3 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2893912014042026000000-... | 25.2 KiB | 23.5 KiB |
15日の東京株式市場で日経平均株価は2月27日に付けた最高値を試す展開となった（ロイター） a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2897464015042026000000-... | 31.0 KiB | 23.4 KiB |
ボスポラス海峡を通過するロシア船籍の原油タンカー=ロイター div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899924015042026000000-... | 25.0 KiB | 23.4 KiB |
a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2880252011042026000000-... | 30.0 KiB | 22.6 KiB |
第一三共ヘルスケアの「ロキソニンＳ」など div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2896557015042026000000-... | 23.0 KiB | 21.5 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2879173010042026000000-... | 21.9 KiB | 20.5 KiB |
税制改正が働く人のランチ事情に変化をもたらしている div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2887782013042026000000-... | 20.1 KiB | 18.8 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2890922014042026000000-... | 19.2 KiB | 18.0 KiB |
ホルムズ海峡の通過を目指す船舶は情勢に翻弄される（3月、アラブ首長国連邦東部ラス・アル・ハイマ）=ロイター div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2879376010042026000000-... | 17.9 KiB | 16.8 KiB |
div.picture_pvxcl1b > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.picture_pvxcl1b > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2882737013042026000000-... | 27.8 KiB | 16.7 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2835358001042026000000-... | 17.6 KiB | 16.5 KiB |
風早隆弘 div.content_c1489jjx > a.container_cbbf1ny > span.picture_p1sgo2jr > img.reporterImage_rdqh9f3 | /https://imgix-proxy.n8s.jp/topic/EVP01081-1-1.jpg?auto=f... | 15.4 KiB | 15.2 KiB |
ニューヨーク証券取引所（2015年）=ロイター div.picture_p1typbfp > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2899945016042026000000-... | 24.1 KiB | 14.5 KiB |
div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr div.image_irszz0x > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2778776019032026000000-... | 15.0 KiB | 14.0 KiB |
原油価格がインフレと景気にどう影響するかが今後のカギ（26年4月14日、米オレゴン州のガソリンスタンド）=AP a.imageAnchor_i1u6wsqb > div.picture_p1h9z2jq > picture.content_c19bavgi > img.image_i1yka2fr | /https://imgix-proxy.n8s.jp/DSXZQO2897536015042026000000-... | 16.7 KiB | 12.6 KiB |
中竹竜二 div.content_c1489jjx > a.container_cbbf1ny > span.picture_p1sgo2jr > img.reporterImage_rdqh9f3 | /https://imgix-proxy.n8s.jp/topic/EVP01086-1-1.jpg?auto=f... | 8.0 KiB | 7.9 KiB |
日本経済新聞トップ div.headerToolNavContainer_h1itz95y > div.head_hugy8te > a.headLogo_hniq3e8 > img.logoImage_likza8z | www.nikkei.com/.resources/k-components/logo/masthead.rev-b8cf30e.png | 9.4 KiB | 7.0 KiB |
益尾知佐子 div.content_c1489jjx > a.container_cbbf1ny > span.picture_p1sgo2jr > img.reporterImage_rdqh9f3 | /https://imgix-proxy.n8s.jp/topic/EVP01135-1-1.jpg?auto=f... | 6.7 KiB | 6.6 KiB |
HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.
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.
| URL | Transfer Size |
|---|---|
| www.nikkei.com/.resources/k2-top/main.rev-6000bdcd.css | 25.9 KiB |
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 |
|---|---|
| nikkei.com/ | 343 ms |
| www.nikkei.com/ | 0.0 ms |
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
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
米S&P500とナスダック総合が最高値、中東紛争でも崩れぬ業績
米S&P500とナスダック総合が最高値、中東紛争でも崩れぬ業績
【ニューヨーク=今堀祥和】米… body > div.body_bgvwx9q | 0.274 |
米イラン、パキスタンで再交渉調整 ｢バンス氏らがやり取り継続｣
イラン軍事衝突
米イラン、パキスタンで再交渉調整｢バンス氏らがやり取り継続｣
【イスタンブー… div > div > div > div.largeCardArticleBlocks_lf4a8gu | 0.151 |
トップ
速報
ビジネス
マーケット
経済
国際
オピニオン
もっと見る
#ナフサ高騰
#トランプ政権 nav.globalNavigationHeader_g16jbunc > div.container_c681z5e > div.content_ck20673 > ul.contentNav_c1bjgmbd | 0.006 |
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.
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.
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtag/js?id=AW-1024704716&cx=c>m=4e64e1h1 | 144.2 KiB | 55.5 KiB |
| www.googletagmanager.com/gtag/js?id=G-PXS8451SBG | 173.3 KiB | 55.0 KiB |
| www.nikkei.com/.resources/k2-top/main.rev-727ad7f4.js | 133.2 KiB | 47.8 KiB |
| connect.facebook.net/en_US/fbevents.js | 96.3 KiB | 32.5 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.nikkei.com/.resources/k2-top/main.rev-6000bdcd.css | 25.8 KiB | 15.3 KiB |
| .k-button{-webkit-appearance:none;-moz-appearance:none;appearance:none;-webkit-tap-highlight-color:… | 14.6 KiB | 14.6 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 | |
|---|---|
イラン軍事衝突 ニュース・解説はこちら div.container_c199s2h > a.link_lp4r7xz > picture.picture_p1geunww > img | partsa.nikkei.com/parts/ds/images/topic/banner_us_iran_tension_202602_pc.jpg |
Think! article.container_c1e5f6rx > div.textContainer_t1v5liye > div.metaContainer_mvb5xl6 > img.icon_i7atnwz | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaContainer_m1xd4ucj > img.icon_i19xqikn | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
Think! div.container_c1ukjho0 > div.textContent_t6mnomz > div.metaContainer_mondcn1 > img.icon_ijft9l6 | www.nikkei.com/.resources/k-components/logo/think.rev-3b943d5.svg |
PR a.anchor_a5ifnf5 > div.prContainer_pcxi4q8 > i.iconStyle_i11t78hf > img | www.nikkei.com/.resources/k-components/icon/pr.rev-3437e86.svg |
PR span.commonStylesMetaText_c1f6i0vj > span.prContainer_p1qo25si > i.iconStyle_i11t78hf > img | www.nikkei.com/.resources/k-components/icon/pr.rev-3437e86.svg |
PR span.commonStylesMetaText_c1f6i0vj > span.prContainer_p1qo25si > i.iconStyle_i11t78hf > img | www.nikkei.com/.resources/k-components/icon/pr.rev-3437e86.svg |
PR span.commonStylesMetaText_c1f6i0vj > span.prContainer_p1qo25si > i.iconStyle_i11t78hf > img | www.nikkei.com/.resources/k-components/icon/pr.rev-3437e86.svg |
会員限定記事 div.textContainer_t1v5liye > h2.title_t7qfgoq > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t1agme82 > h2.title_tlmhwm6 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 a.titleText_tnnopfn > h2.title_t8xcrjm > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 a.titleText_tnnopfn > h2.title_t8xcrjm > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 li.textArticleList_t1qxhi24 > a.titleText_tnnopfn > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.textContainer_ta98o9y > h2.title_te6hgf2 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.textContainer_ta98o9y > h2.title_te6hgf2 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.textContainer_ta98o9y > h2.title_te6hgf2 > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
会員限定記事 div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/locked_square.rev-5fc2936.svg |
動画あり div.titleArea_t19567mm > h2.title_tl0evav > span.metaTags_m116cxpk > img.icon_i6435wp | www.nikkei.com/.resources/k-components/icon/video.rev-631012e.svg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
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 |
|---|
お申し込み nav.headNavs_h1men6qz > k2-kite-header-account-nav.accountNav_a1i8t0o1 > a.accountNavItem_a1pb0gw3 > span.buttonText_bhlvih7 |
These are opportunities to improve the legibility of your content.
Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
body > div.adForLarge_a15byfch > div#4982_6763 > iframe#fif_slot__4982_6763 body > div.adForLarge_a15byfch > div#4982_6763 > iframe#fif_slot__4982_6763 |
div.wrapper_w1aqievp > div.ad_a2ahng2 > div#4984_6763 > iframe#fif_slot__4984_6763 div.wrapper_w1aqievp > div.ad_a2ahng2 > div#4984_6763 > iframe#fif_slot__4984_6763 |
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb div.cardOuterContainer_cnjf2s0 > div.cardInnerContainer_cmocufx > div.cardContent_cng6c8a > a.imageAnchor_i1u6wsqb |
div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h |
div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h div.card_c1n1wn9q > div.wrapper_wkoog9o > div.contents_cgvemjo > a.imageArea_iyrsl9h |
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.
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 |
|---|
日経チャンネル section.column_cw1pcvi > ul.container_cwihsqr > li.splitItem_ssxtw7q > a.link_l1lnxu3m |
日経グローカル section.column_cw1pcvi > ul.container_cwihsqr > li.splitItem_ssxtw7q > a.link_l1lnxu3m |
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 |
|---|
エプソン、新中計に高まらぬ期待「引き算」不足のROIC経営 article.container_clrflg9 > div.textContainer_t10uyfy9 > div.articleContainer_axihtka > a.titleText_tnnopfn |
OpenAI、ノルウェーでAIインフラ投資計画「スターゲート」撤退 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
三菱マテが小名浜で銅鉱石由来の製錬停止非鉄大手が探る3つの生存策 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
SCREEN、米東部に研究拠点を新設半導体装置の先端技術開発 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
トレーディング業務で米銀大もうけ規制緩和の追い風 article.container_clrflg9 > div.textContainer_t10uyfy9 > div.articleContainer_axihtka > a.titleText_tnnopfn |
日経平均株価、米イラン交渉の進展期待が追い風（先読み株式相場） div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
スニーカー企業がAI企業に「くら替え」米オールバーズ株7倍に急騰 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
拡大するFX投資3月の建玉残高は過去最高、中東緊迫で取引活発 div.textArticleContainer_tud1wi2 > ul > li.textArticleList_t1qxhi24 > a.titleText_tnnopfn |
北海道の春季交渉、賃上げペース継続のカギは？ 労使トップに聞く
14日 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
福島産米、再生の歩み続ける 外食向けや輸出に熱視線
15日 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
下水汚泥から肥料「クマムシくん」 埼玉の荒川水循環センター
5:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
信越の企業が高水準の賃上げ実施 物価高に対応、採用競争力向上狙う
5:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
柿安本店社長｢EC売上高､数年後に倍増｣ ブランド牛生かし商品開発
5:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
立山黒部アルペンルートが全線開通 「雪の大谷」高さは12メートル
15日 20:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
参天製薬、成長賭ける「自由診療」市場 近視薬など5000施設へ
5:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
岡山の萩原工業、繊維でパラグアイ国道支える コンクリ舗装を普及
15日 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
高松空港、濃霧でも着陸可能に 就航率改善や災害復旧拠点へ進化期待
5:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
三菱長崎機工、15センチ厚鋼板も曲げ加工 世界の発電所ニーズに対応
5:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
信越の企業が高水準の賃上げ実施 物価高に対応、採用競争力向上狙う
5:00 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
植物工場、自然光で電力高騰の逆風克服 立地5年で13%増え最多更新
10日 div.container_c6dtnx5 > div.container_c1sb2bza > div.column_c17geelt > a.anchor_a1buqtbz |
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 |
|---|---|
| AttributionReporting | connect.facebook.net/en_US/fbevents.js line 279, col 769 |
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.
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