Meta Property=og label meaning and function turn

Often see the following code in the head of some foreign websites:

<Meta Property= "fb:app_id"content= "192271934223559"/>
<Meta Property= "Og:image"content= "Http://www.piccsy.com/investors/apple-touch-icon-114x114-precomposed.png"/> <Meta Property= "Og:title"content= "Piccsy Investor pitchdeck"/><Meta Property= "Og:type"content= "website"/><Meta Property= "Og:url"content= "Http://www.piccsy.com/investors"/> <Meta Property= "Og:description"content= "Detailed information about PICCSY for investors."/>

Do not understand what the Meta property=og tag means, as well as the impact on SEO, look at the following introduction.
What is the Meta property=og tag?

OG is a new HTTP header tag, the Open Graph Protocol:

The Open Graph Protocol enables any Web page to become a rich object in a social Graph.

That is, the protocol can make a Web page a "rich media object."
Using meta Property=og tags, you agree that Web content can be referenced by other social web sites, etc., the current agreement by SNS sites such as Fackbook, Renren adoption.
SNS has become a popular application on the Web, high-quality content through sharing among friends quickly spread. In order to improve the efficiency of external content dissemination, Facebook unveiled a set of open-content agreements at the F8 Conference in 2010 (open Graph Protocol), where SNS can extract the most effective information from the page and present it to the user as long as the agreement is adhered to.

Open Graph Protocol Application Guide:
Participate in the benefits of open Graph protocol.
Be able to share your content correctly to SNS website 2
Help your content propagate more effectively in SNS networks
Application of Meta Property tags
Add the meta tag to What if there are multiple items on a page that need to be identified?

You can repeat the META tag, which will assume that the Og:type tag is the starting point for each paragraph, for example:

<meta property= "Og:type" content= "video"/>

<meta property= "Og:title" content= "May days _ suddenly good Miss you mv Live Edition"/>
<meta property= "Og:image" content= "http://g1.ykimg.com/ 0100641f464ac21ff0b3ed00f48f151f43d4bf-5f0f-bd39-76ea-e5e20a1887c4 "/>
<meta property= "Og:url" content= "http://v.youku.com/v_show/id_XMTIyMTY5NzMy.html"/>
<meta property= "og:videosrc" content= "http://player.youku.com/player.php/sid/XMTIyMTY5NzMy&isAutoPlay= True/v.swf "/>

<meta property= "Og:width" content= "500″/>

<meta property= "Og:height" content= "416″/>
<meta property= "Og:type" content= "video"/>
<meta property= "Og:title" content= "May days _ suddenly good miss you mv live version _aa"/>

<meta property= "Og:image" content= "http://g1.ykimg.com/ 0100641f464ac21ff0b3ed00f48f151f43d4bf-5f0f-bd39-76ea-e5e20a1887c44444 "/>

<meta property= "Og:url" content= "http://v.youku.com/v_show/id_XMTIyMTY5NzMyyyyyyyyyyyyyyyy.html"/>
<meta property= "og:videosrc" content= "http://player.youku.com/player.php/sid/xxxxxxxxxxxxmtiymty5nzmy& Isautoplay=true/y.swf "/>
<meta property= "og:width" content= "/>"
<meta property= "Og:height" content= "716"/>

The use of open Graph protocol should be noted
The meta Property=og Code does not function the same as the meta name tag of the Web page, and the objects are inconsistent and functionally different. 0 d$ P) m, [. D
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If you are using open Graph Protocol on your website, then the meta Property=og and meta name and title tags should be assigned at the same time.
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The article begins with an example of a consumer website,<meta http-equiv= "Content-type" content= "Text/html;charset=utf-8"/>

<title>cool Gadgets at the right price-worldwide free Shipping-******</title>
<meta property= "Og:title" content= "* * ' Sfacebook"/>

<meta property= "Og:type" content= "Product"/>
<meta property= "Og:url" content= "http://www.******.com"/>
<meta property= "Og:image" content= "Http://www.******.com/logo.gif"/>

<meta property= "Og:site_name" content= "******.com"/>
<meta property= "og:description" content= "coolgadgets at the Rightprice-worldwide free Shipping-******"/>

<meta property= "Fb:admins" content= "100001422224225"/>

<meta property= "fb:page_id" content= "241333394220"/>
<link href= "/css/reset.css" rel= "stylesheet" type= "Text/css"/>
<link href= "/css/default/all.16666.css" rel= "stylesheet" type= "Text/css"/>
<script type= "Text/javascript" src= "/shop.js" ></script>

<script type= "Text/javascript" src= "/scripts/all.16666.build.js" ></script>
<meta http-equiv= "Content-type" content= "Text/html;charset=utf-8"/>

<meta name= "description" content= "Online shopping for cool gadgets at the right price. "/>
<meta name= "keywords" content= "cool gadgets, cheap gadgets, free shipping"/>
If you use the Meta property tag, you have to set it up in the background, otherwise, it's blank.

The effect of Open Graph protocol on SEO
Some people use the so-called website quality online detection, after the test results suggest Meta Property=og This code has a problem, especially some SEO detection, it is a hint "special error"! Then delete the Meta Property=og code to detect normal.

So worry about meta Property=og This code will have a bad impact on the site
In fact, open Graph protocol does not affect the SEO, on the contrary, the application of reasonable, very conducive to the promotion of the site.

Meta Property=og label meaning and function turn