• Source: HCard

hCard is a microformat for publishing the contact details (which might be no more than the name) of people, companies, organizations, and places, in HTML, Atom, RSS, or arbitrary XML. The hCard microformat does this using a 1:1 representation of vCard (RFC 2426) properties and values, identified using HTML classes and rel attributes.
It allows parsing tools (for example other websites, or Firefox's Operator extension) to extract the details, and display them, using some other websites or mapping tools, index or search them, or to load them into an address-book program.
In May 2009, Google announced that they would be parsing the hCard and hReview and hProduct microformats, and using them to populate search-result pages. In September 2010 Google announced their intention to surface hCard, hReview information in their local search results. In February 2011, Facebook began using hCard to mark up event venues.




Example


Consider the HTML:

With microformat markup, that becomes:

A profile may optionally be included in the page header:

Here the properties fn, nickname, org (organization), tel (telephone number) and url (web address) have been identified using specific class names; and the whole thing is wrapped in class="vcard" which indicates that the other classes form an hcard, and are not just coincidentally named. If the hCard is for an organization or venue, the fn and org classes are used on the same element, as in Wikipedia or Wembley Stadium. Other, optional hCard classes also exist.
It is now possible for software, for example browser plug-ins, to extract the information, and transfer it to other applications, such as an address book.




Geo and adr


The Geo microformat is a part of the hCard specification, and is often used to include the coordinates of a location within an hCard.
The adr part of hCard can also be used as a stand-alone microformat.




Live example


Here are the Wikimedia Foundation's contact details as of February 2023, as a live hCard:

The mark-up (wrapped for clarity) used is:

In this example, the fn and org properties are combined on one element, indicating that this is the hCard for an organization, not a person.




Other attributes


Other commonly used hCard attributes include

bday – a person's birth date
email
honorific-prefix
honorific-suffix
label – for non-granular addresses
logo
nickname
note – free text
photo
post-office-box




See also


vCard
XHTML Friends Network
FOAF




References






Further reading


Allsopp, John (2007). Microformats: Empowering Your Markup for Web 2.0. Berkeley: Friendsof. p. 125. ISBN 978-1-59059-814-6.

Kata Kunci Pencarian:

• Pandu Patria Sjahrir
• Axton Salim
• Auguste Comte
• Julia Rais
• Jehian Panangian Sijabat
• Daftar fitur Facebook
• Aaron Kwok
• Guru Patimpus
• Johnny Seo
• Jimmy Lin
• HCard
• VCard
• Microformat
• Tel
• Distributed social network
• HProduct
• GRDDL
• Geo (microformat)
• HRecipe
• XHTML Friends Network