Core Web Vitals は、ページの読み込みパフォーマンス、インタラクティブ性、視覚的安定性に関する実際のユーザー エクスペリエンスを測定する一連の指標です。検索結果でのランキングを上げ、全般的に優れたユーザー エクスペリエンスを提供できるよう、サイト所有者の皆様には、Core Web Vitals を改善することを強くおすすめします。Core Web Vitals は、その他のページ エクスペリエンス要素とともに、Google のコア ランキング システムがランキングを決定する際に考慮する要素です。詳細については、ページ エクスペリエンスの Google 検索結果への影響についてをご覧ください。
[[["わかりやすい","easyToUnderstand","thumb-up"],["問題の解決に役立った","solvedMyProblem","thumb-up"],["その他","otherUp","thumb-up"]],[["必要な情報がない","missingTheInformationINeed","thumb-down"],["複雑すぎる / 手順が多すぎる","tooComplicatedTooManySteps","thumb-down"],["最新ではない","outOfDate","thumb-down"],["翻訳に関する問題","translationIssue","thumb-down"],["サンプル / コードに問題がある","samplesCodeIssue","thumb-down"],["その他","otherDown","thumb-down"]],["最終更新日 2025-08-04 UTC。"],[[["\u003cp\u003eCore Web Vitals are a set of metrics used by Google to measure a webpage's loading performance, interactivity, and visual stability, contributing to a better user experience and search ranking.\u003c/p\u003e\n"],["\u003cp\u003eThese metrics include Largest Contentful Paint (LCP) for loading speed, Interaction to Next Paint (INP) for responsiveness, and Cumulative Layout Shift (CLS) for visual stability.\u003c/p\u003e\n"],["\u003cp\u003eGoogle provides resources like Search Console reports and web development guides to help website owners understand, measure, and improve their Core Web Vitals.\u003c/p\u003e\n"]]],["Core Web Vitals measure user experience in loading, interactivity, and visual stability. Site owners should aim for good Core Web Vitals to improve search performance and user experience. Key metrics include: Largest Contentful Paint (LCP) under 2.5 seconds, Interaction to Next Paint (INP) under 200 milliseconds, and Cumulative Layout Shift (CLS) under 0.1. The Core Web Vitals report in Search Console, along with additional tools, are used for measuring, monitoring, and optimizing these metrics.\n"],null,["# Understanding Core Web Vitals and Google search results | Google Search Central\n\nUnderstanding Core Web Vitals and Google search results\n=======================================================\n\n\n[Core Web Vitals](https://web.dev/articles/vitals#core-web-vitals) is a set of metrics that measure real-world\nuser experience for loading performance, interactivity, and visual stability of the page. We highly recommend site\nowners achieve good Core Web Vitals for success with Search and to ensure a great user experience generally. This,\nalong with other page experience aspects, aligns with what our core ranking systems seek to reward. Learn more in\n[Understanding page\nexperience in Google Search results](/search/docs/appearance/page-experience).\n\nCore Web Vitals metrics\n-----------------------\n\n- [Largest Contentful Paint (LCP)](https://web.dev/articles/lcp): Measures loading performance. To provide a good user experience, strive to have [LCP occur within\n the first 2.5 seconds](https://web.dev/articles/lcp#what-is-a-good-lcp-score) of the page starting to load.\n- [Interaction To Next Paint (INP)](https://web.dev/articles/inp): Measures responsiveness. To provide a good user experience, strive to have an [INP of less than 200 milliseconds](https://web.dev/articles/inp#good-score).\n- [Cumulative Layout Shift (CLS)](https://web.dev/articles/cls): Measures visual stability. To provide a good user experience, strive to have a [CLS score of\n less than 0.1](https://web.dev/articles/cls#what-is-a-good-cls-score).\n\nOptimizing your Core Web Vitals\n-------------------------------\n\n\nHere are some resources that can help you measure, monitor, and optimize your Core Web Vitals:\n\n- Check the [Core Web\n Vitals report in Search Console](https://support.google.com/webmasters/answer/9205520). This shows how your pages perform.\n- Learn more about [Core\n Web Vitals](https://web.dev/articles/learn-core-web-vitals), a guide about Core Web Vitals, including how to measure, debug, improve and best practices.\n- Learn about the different tools that can help you [measure\n and report Core Web Vitals](https://web.dev/articles/vitals-tools). These tools measure LCP, INP, and CLS.\n\nRecent updates on our blog\n--------------------------\n\n\nHere's everything we've announced about Core Web Vitals on the\n[Google Search Central blog](/search/blog):"]]