What is the attribute property=“og:title” inside meta tag?
I have this extract of website source code:
What does this proper
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og:titleis one of the open graph meta tags.og:...properties define objects in a social graph. They are used for example by Facebook.og:titlestands for the title of your object as it should appear within the graph (see here for more http://ogp.me/ )讨论(0) -
The
propertyin meta tags allows you to specify values to property fields which come from a property library. The property library (RDFa format) is specified in the head tag.For example, to use that code you would have to have something like this in your
<headtag.<head xmlns:og="http://example.org/">and inside thehttp://example.org/there would be a specification fortitle(og:title).The tag from your example was almost definitely from the Open Graph Protocol, the purpose is to specify structured information about your website for the use of Facebook (and possibly other search engines).
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A degree of control is possible over how information travels from a third-party website to Facebook when a page is shared (or liked, etc.). In order to make this possible, information is sent via Open Graph meta tags in the
<head>part of the website’s code.讨论(0) -
Probably part of Open Graph Protocol
for Facebook.Edit: guess not only Facebook - that's only one example of using it.
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