Google は、他の方法を使用してページからデータを抽出することがあります。ページのコンテンツを使用してスニペットを作成しないように Google に明示的に依頼する場合は、その HTML 要素に data-nosnippet 属性を追加します。
データを Google Merchant Center にアップロードする
商品データを Google Merchant Center にアップロードすることは、Google 検索結果に表示されるために必須ではありませんが、そうすることで、Google が商品をより正確に理解できるようになります。ただし、一部の Google サービス(Google ショッピング タブのリスティングなど)で表示されるには、Google Merchant Center を使用する必要があります。
大規模なサイトや、コンテンツを頻繁に変更するサイトの場合、定期的に Google Merchant Center に新しいデータフィード ファイルをアップロードします。すぐに更新する場合は、Content API を使用します。この方法により、Google でのデータを細かく制御できます。フィード ファイルをアップロードするメリットとして次のことがあります。
Google が商品をすべて把握していると確信できるようになります。
ウェブクロールでは、サイト上の商品がすべて見つかるとは限りません。
アップデートのタイミングを細かく制御できるようになります。Google では、サイトの変更がクロールで処理されるまでの時間を判断できません。フィードを使用すると、週ごと、日ごと、1 時間ごとなど、任意のタイミングで更新を行えます。Content API を使用すると、コンテンツを即座に更新できるため、在庫レベルの更新に特に適しています。
ウェブサイトに掲載されていないデータを共有します。特定の情報(実店舗の在庫データなど)には、ウェブサイトの表示に適していない情報が含まれている場合もあります。フィードと Content API を使用すると、このようなデータをウェブサイトに表示することなく Google と共有できます。
Google 画像検索では、Google Merchant Center に掲載されている画像が使用されます。
更新の遅延の問題を解決する
Google がウェブサイトと Google Merchant Center フィードのデータを組み合わせると、遅延によるデータの不整合の問題につながる可能性があります。たとえば、商品が売り切れると、ウェブサイトでは通常その商品をすぐに購入不可として表示しますが、Google Merchant Center の更新には時間がかかる場合があります。これは、フィードを使用している場合に発生する可能性が高くなります。
価格と在庫状況のデータの潜在的な矛盾(同期の問題の一般的な原因)を回避するために、このような不一致が見つかった場合、ウェブサイト コンテンツに従って商品データのコピーを自動的に更新するよう Google Merchant Center に伝えます。
Googlebot と Google Merchant Center が連携する仕組みについて詳しくは、検索セントラルのライトニング トークシリーズの商品を Google 検索に統合する方法をご覧ください。
[null,null,["最終更新日 2025-08-04 UTC。"],[[["\u003cp\u003eShare your ecommerce product data with Google to enhance your product visibility and reach more customers on Google Search and other surfaces.\u003c/p\u003e\n"],["\u003cp\u003eInclude structured data on your product pages and upload a product feed to Google Merchant Center to provide Google with comprehensive and accurate product information.\u003c/p\u003e\n"],["\u003cp\u003eGoogle uses structured data and Google Merchant Center data to power rich product experiences, like Product rich results and the Google Shopping tab.\u003c/p\u003e\n"],["\u003cp\u003eEnsure data consistency by configuring Google Merchant Center to automatically update product data based on website content to avoid discrepancies in pricing and availability.\u003c/p\u003e\n"]]],["To enhance product visibility on Google, share e-commerce data. Include structured data on product pages to improve Google's understanding and create rich results. Upload product feeds to Google Merchant Center for greater control over data, including data not on your website, and more frequent updates. Merchant Center is required for the Google Shopping tab. To resolve data discrepancies between website and Merchant Center, enable automatic updates based on website content within Merchant Center.\n"],null,["# Share Your Product Data With Google | Google Search Central\n\nShare your product data with Google\n===================================\n\n\nTo increase eligibility for\n[richer appearances and on more surfaces across Google](/search/docs/specialty/ecommerce/where-ecommerce-data-can-appear-on-google)\nthat can bring more relevant traffic to your site, share your ecommerce product data with\nGoogle. To take advantage of these benefits, Google recommends that you do the following:\n\n- **Include structured data in your site's product pages** . Learn more about the benefits of [adding structured data to your web pages](#add-structured-data).\n- **Tell Google directly which products you want to show on Google** by uploading a feed to [Google Merchant Center](https://support.google.com/merchants/answer/188924). Google Merchant Center is a Google service that has a deeper understanding of commerce data. Learn more about the [benefits of Google Merchant Center](#upload-product-data).\n\nAdd product structured data to web pages\n----------------------------------------\n\n\nWhere feasible, add structured data to your product pages. While structured data isn't\nrequired to appear in Google Search results, it can help Google understand your page better\nand display it as a rich result. For example:\n\n- Structured data increases eligibility for [Product rich results](/search/docs/appearance/structured-data/product).\n- Structured data can improve the accuracy of Google's understanding of content such as price, discount, and shipping costs on a page (this can also help the accuracy of Google Merchant Center verification of product feeds against your site).\n\n\nReady to start implementing? Check out\n[Include structured data relevant to ecommerce](/search/docs/specialty/ecommerce/include-structured-data-relevant-to-ecommerce)\nfor more information.\n\n\nGoogle may at times use other approaches to extract data from pages. If you want to explicitly\ntell Google not to use content on a page to form a snippet, add a\n[`data-nosnippet` attribute](/search/docs/crawling-indexing/robots-meta-tag#data-nosnippet-attr)\nto that HTML element.\n\nUpload data to Google Merchant Center\n-------------------------------------\n\n\nWhile uploading product data to Google Merchant Center isn't mandatory to appear in Google\nsearch results, it can enhance Google's understanding of your products. Participation in Google\nMerchant Center is mandatory for some Google surfaces, such as listings in the\nGoogle Shopping tab.\n| **What is Product Data?** Product data describes various attributes of products, such as its title, description, color, pricing, and availability.\n\n\nFor smaller sites that are updated less frequently, you can use an\n[automated feed to build your product data](https://support.google.com/merchants/answer/7538732)\nfrom crawled web content (structured data can help improve the accuracy of data extraction).\nThis approach can also be useful to get started with less effort.\n\n\nFor larger sites or sites with frequently changing content, periodically\n[upload new data feed files](https://support.google.com/merchants/answer/188477)\nto Google Merchant Center (or for immediate updates use the\n[Content API](/shopping-content/guides/quickstart)).\nThis gives you greater control over your data in Google. Benefits of uploading feed files include:\n\n- **Increase confidence Google knows all of your products**. Web crawling is not guaranteed to find all products on your site.\n- **Gain greater control over the timing of updates**. Google does not guarantee how long it takes before changes on your site will be processed through crawling. Feeds can be used for weekly, daily, or even hourly updates, at your time of choice. The Content API allows immediate content updates, which is particularly useful for stock level updates.\n- **Share data that's not present on your website**. You may decide some information is not appropriate to include on your web site, such as physical store level inventory data. Feeds and the Content API let you share this data with Google without it being present on your website.\n\n\nLearn more about how to\n[Sign up for Google Merchant Center](https://support.google.com/merchants/answer/188924).\n\nHow Google uses structured data and Google Merchant Center data\n---------------------------------------------------------------\n\n\nThe following are examples of how Google uses structured data embedded in web pages and Google Merchant Center data\nfor different experiences. Note that experiences may vary by country, device, and other\nfactors.\n\n| Experience | Structured Data | Google Merchant Center |\n|----------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------|\n| **Product rich results in Google Search** | Google Search uses [Product structured data](/search/docs/appearance/structured-data/product) to display product rich results. | Google Search may use Google Merchant Center data to display product rich results. |\n| **Google Images results with product annotations** | Google Images uses [Product structured data](/search/docs/appearance/structured-data/product) to display product annotations on images. | Google Images uses images listed in Google Merchant Center. |\n| **Google Shopping tab** | Adding structured data can help Google Merchant Center in some cases (for example, during data verification). | Participation in Google Merchant Center is required to appear in the Google Shopping tab. |\n| **Google Lens image search results** | Google Lens uses [image structured data properties](/search/docs/appearance/structured-data/sd-policies#images) where available. | Google Images uses images listed in Google Merchant Center. |\n\nResolving update delay issues\n-----------------------------\n\n\nWhen Google combines data from your website and Google Merchant Center feeds, it can lead to\ndata inconsistency issues due to lag. For example, if a product sells out, your website would\ntypically immediately mark it as unavailable for purchase, but Google Merchant\nCenter may not be updated until some time later, especially if you're using feeds.\n\n\nTo avoid this potential conflict in pricing and stock availability data (a common cause of\nsynchronization issues), tell Google Merchant Center\n[to automatically update its copy of your product data](https://support.google.com/merchants/answer/3246284)\nbased on the website contents, when such a discrepancy is noticed.\n\n\nTo learn more about how Googlebot and Google Merchant Center work together, see\n[How to get your products into Search](https://www.youtube.com/watch?v=UQtdv_hoGuM)\nfrom the Search Central Lightning talk series."]]