「署名日」とは、ウェブページが更新または公開されたと Google が推定した日付のことです。ウェブページや動画の署名日を Google が判定できる状態にあり、この情報がユーザーの役に立つと判断された場合は、検索結果にこの情報が表示されることがあります。署名日を判定するために Google が参照する情報を指定できます。
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<title>Analyzing Google Search traffic drops</title>
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Posted Tuesday, July 20, 2021
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Suppose you open Search Console and find out that your Google Search traffic dropped. What should you do?
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[[["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 2025-05-16 UTC。"],[[["Google Search uses several factors to estimate a webpage's publication or update date, called the byline date, which may be displayed in search results."],["You can influence the byline date by clearly displaying the publication or last updated date on the page and labeling it appropriately."],["Using structured data with `datePublished` and/or `dateModified` properties is recommended for providing date information to Google."],["Following best practices, such as using consistent dates and avoiding future dates, helps Google accurately determine the byline date."],["While Google doesn't guarantee displaying the byline date, adhering to these guidelines increases the chances of it being recognized and used."]]],["Google determines a webpage's byline date, which may appear in search results. To influence this, add a prominent, user-visible date labeled as \"Published\" or \"Last updated.\" Also, use structured data (e.g., `Article`, `BlogPosting`) to specify `datePublished` and/or `dateModified`. Dates and times should be consistent between user-visible and structured data, accurate, and not in the future. Minimize other dates on the page and provide time and timezone if possible.\n"]]