たとえば、Google I/O 2013 のチケットを参加者に送付する担当者が、これらのメールでマークアップのセマンティック情報を使用するとします。少なくとも、チケットの確認メールには次のような HTML が含まれます。
<html>
<body>
<p>
Dear John, thanks for booking your Google I/O ticket with us.
</p>
<p>
BOOKING DETAILS<br/>
Order for: John Smith<br/>
Event: Google I/O 2013<br/>
When: May 15th 2013 8:30am PST<br/>
Venue: Moscone Center, 800 Howard St., San Francisco, CA 94103<br/>
Reservation number: IO12345<br/>
</p>
</body>
</html>
このメールのマークアップは非常に簡単です。メール本文の関連情報は、サポートされている形式のいずれかに対応する構造化された形式で、メールの HTML の body 内の任意の場所に追加できます。次のコードブロックは、マークアップされたメールの例を示しています。
[null,null,["最終更新日 2025-08-29 UTC。"],[],[],null,["# Get Started\n\nEmail markup uses structured data in emails to work. Gmail supports both [JSON-LD](/workspace/gmail/markup/reference/formats/json-ld) and [Microdata](/workspace/gmail/markup/reference/formats/microdata) and you can use either of them to markup information in email. This lets Google understand the fields and provide the user with relevant search results, actions, and cards. For example, if the email is about an event reservation, you might want to annotate the start time, venue, number of tickets, and all other information that defines the reservation.\n\nYour first markup\n-----------------\n\nLet's say you are responsible for sending out Google I/O 2013 tickets to participants and you want to use markup semantic information in these emails. At the very least, your ticket confirmation email will contain HTML like the following: \n\n \u003chtml\u003e\n \u003cbody\u003e\n \u003cp\u003e\n Dear John, thanks for booking your Google I/O ticket with us.\n \u003c/p\u003e\n \u003cp\u003e\n BOOKING DETAILS\u003cbr/\u003e\n Order for: John Smith\u003cbr/\u003e\n Event: Google I/O 2013\u003cbr/\u003e\n When: May 15th 2013 8:30am PST\u003cbr/\u003e\n Venue: Moscone Center, 800 Howard St., San Francisco, CA 94103\u003cbr/\u003e\n Reservation number: IO12345\u003cbr/\u003e\n \u003c/p\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\nMarking up this email is very easy. Relevant pieces of information in the email body can be added anywhere inside the `body` of the email's HTML in a structured form corresponding to one of the supported formats. The following code block shows what the marked-up email looks like: \n\n### JSON-LD\n\n \u003chtml\u003e\n \u003cbody\u003e\n \u003cscript type=\"application/ld+json\"\u003e\n {\n \"@context\": \"http://schema.org\",\n \"@type\": \"EventReservation\",\n \"reservationNumber\": \"IO12345\",\n \"underName\": {\n \"@type\": \"Person\",\n \"name\": \"John Smith\"\n },\n \"reservationFor\": {\n \"@type\": \"Event\",\n \"name\": \"Google I/O 2013\",\n \"startDate\": \"2013-05-15T08:30:00-08:00\",\n \"location\": {\n \"@type\": \"Place\",\n \"name\": \"Moscone Center\",\n \"address\": {\n \"@type\": \"PostalAddress\",\n \"streetAddress\": \"800 Howard St.\",\n \"addressLocality\": \"San Francisco\",\n \"addressRegion\": \"CA\",\n \"postalCode\": \"94103\",\n \"addressCountry\": \"US\"\n }\n }\n }\n }\n \u003c/script\u003e\n \u003cp\u003e\n Dear John, thanks for booking your Google I/O ticket with us.\n \u003c/p\u003e\n \u003cp\u003e\n BOOKING DETAILS\u003cbr/\u003e\n Reservation number: IO12345\u003cbr/\u003e\n Order for: John Smith\u003cbr/\u003e\n Event: Google I/O 2013\u003cbr/\u003e\n Start time: May 15th 2013 8:00am PST\u003cbr/\u003e\n Venue: Moscone Center, 800 Howard St., San Francisco, CA 94103\u003cbr/\u003e\n \u003c/p\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\n### Microdata\n\n \u003chtml\u003e\n \u003cbody\u003e\n \u003cdiv itemscope itemtype=\"http://schema.org/EventReservation\"\u003e\n \u003cmeta itemprop=\"reservationNumber\" content=\"IO12345\"/\u003e\n \u003cdiv itemprop=\"underName\" itemscope itemtype=\"http://schema.org/Person\"\u003e\n \u003cmeta itemprop=\"name\" content=\"John Smith\"/\u003e\n \u003c/div\u003e\n \u003cdiv itemprop=\"reservationFor\" itemscope itemtype=\"http://schema.org/Event\"\u003e\n \u003cmeta itemprop=\"name\" content=\"Google I/O 2013\"/\u003e\n \u003ctime itemprop=\"startDate\" datetime=\"2013-05-15T08:30:00-08:00\"/\u003e\n \u003cdiv itemprop=\"location\" itemscope itemtype=\"http://schema.org/Place\"\u003e\n \u003cmeta itemprop=\"name\" content=\"Moscone Center\"/\u003e\n \u003cdiv itemprop=\"address\" itemscope itemtype=\"http://schema.org/PostalAddress\"\u003e\n \u003cmeta itemprop=\"streetAddress\" content=\"800 Howard St.\"/\u003e\n \u003cmeta itemprop=\"addressLocality\" content=\"San Francisco\"/\u003e\n \u003cmeta itemprop=\"addressRegion\" content=\"CA\"/\u003e\n \u003cmeta itemprop=\"postalCode\" content=\"94103\"/\u003e\n \u003cmeta itemprop=\"addressCountry\" content=\"US\"/\u003e\n \u003c/div\u003e\n \u003c/div\u003e\n \u003c/div\u003e\n \u003c/div\u003e\n \u003cp\u003e\n Dear John, thanks for booking your Google I/O ticket with us.\n \u003c/p\u003e\n \u003cp\u003e\n BOOKING DETAILS\u003cbr/\u003e\n Reservation number: IO12345\u003cbr/\u003e\n Order for: John Smith\u003cbr/\u003e\n Event: Google I/O 2013\u003cbr/\u003e\n Start time: May 15th 2013 8:00am PST\u003cbr/\u003e\n Venue: Moscone Center, 800 Howard St., San Francisco, CA 94103\u003cbr/\u003e\n \u003c/p\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\n### Microdata (inline)\n\n \u003chtml\u003e\n \u003cbody\u003e\n \u003cp\u003e\n Dear John, thanks for booking your Google I/O ticket with us.\n \u003c/p\u003e\n \u003cp itemscope itemtype=\"http://schema.org/EventReservation\"\u003e\n BOOKING DETAILS\u003cbr/\u003e\n Reservation number: \u003cspan itemprop=\"reservationNumber\"\u003eIO12345\u003c/span\u003e\u003cbr/\u003e\n Order for: \u003cspan itemprop=\"underName\" itemscope itemtype=\"http://schema.org/Person\"\u003e\n \u003cspan itemprop=\"name\"\u003eJohn Smith\u003c/span\u003e\n \u003c/span\u003e\u003cbr/\u003e\n \u003cdiv itemprop=\"reservationFor\" itemscope itemtype=\"http://schema.org/Event\"\u003e\n Event: \u003cspan itemprop=\"name\"\u003eGoogle I/O 2013\u003c/span\u003e\u003cbr/\u003e\n \u003ctime itemprop=\"startDate\" datetime=\"2013-05-15T08:30:00-08:00\"\u003eStart time: May 15th 2013 8:00am PST\u003c/time\u003e\u003cbr/\u003e\n Venue: \u003cspan itemprop=\"location\" itemscope itemtype=\"http://schema.org/Place\"\u003e\n \u003cspan itemprop=\"name\"\u003eMoscone Center\u003c/span\u003e\n \u003cspan itemprop=\"address\" itemscope itemtype=\"http://schema.org/PostalAddress\"\u003e\n \u003cspan itemprop=\"streetAddress\"\u003e800 Howard St.\u003c/span\u003e,\n \u003cspan itemprop=\"addressLocality\"\u003eSan Francisco\u003c/span\u003e,\n \u003cspan itemprop=\"addressRegion\"\u003eCA\u003c/span\u003e,\n \u003cspan itemprop=\"postalCode\"\u003e94103\u003c/span\u003e,\n \u003cspan itemprop=\"addressCountry\"\u003eUS\u003c/span\u003e\n \u003c/span\u003e\n \u003c/span\u003e\n \u003c/div\u003e\n \u003c/p\u003e\n \u003c/body\u003e\n \u003c/html\u003e\n\nThe above email contains the minimal set of information to define an event reservation. You can markup other pieces of information in your emails to improve the user experience. For instance, the `ticketToken` property of the [`FlightReservation`](/workspace/gmail/markup/reference/flight-reservation) object lets you add a barcode image, such as a QR code, that can be included in a boarding pass card.\n\nTo learn about all of the supported types and their properties, see the [Reference guide](/workspace/gmail/markup/reference).\n| **Note:** Some of the schemas used by Google are still going through the standardization process of [schema.org](http://schema.org), and therefore, may change in the future. [Learn More](/workspace/gmail/markup/reference/schema-org-proposals)."]]