Meta tags are playing a vital role while doing an optimization on a   website. It is to observe that Search Engines identifies a website goal   and its purpose by acquiring its Meta tags. Meta tags contain page  tile,  page description, Meta keywords, Meta author information, Meta  company  information, etc. a website owner can use different Meta tags  according  to his or her needs.
 
Page Title Tag
The Title Tag must contain no more than 60 characters (generally, 100   characters may be indexed). This is the text that appears in the blue   title-bar of your web browser.
Author Information – bio Tag
The Author Tag is for the person who wrote the material for the site.   Normally people add up their names such as content writer, developers,   SEO and SEM.
Website Subject Tag
The Subject Tag is for what your site is about. Music, Home   Remodeling, Security, search engine optimization, etc. You can use upto   100 characters to write an ideal subject title for your website.
Page Description Tag
The Description Tag can have up to 150 characters. Generally, we use   200 to 250 characters in the description Tag which may be indexed,   although only a slighter part of this amount may be displayed. You can   find page description under the Google Results for a particular keyword   search just above the teaser url path. Normally we call this a site or a   page snippet. In other words this is a quick summary of the  information  on the page.
Classification Tags
Classification tag is quite similar to description but more in detail.
Keywords Tags
In the Keyword tag you can use everything relating to your site rich   content that you think someone will search for to find your site. Its   all upto you how many keywords you use to optimize your website. In   general we create contents and then optimize them for a particular   keyword targeting to that content.
Geography Tags
Where are you located? You can use Geography Meta tags to provide   information about your geo location to the search engines. Like, if you   are living in the California, USA, you can put a full street address   (USA, CA, Montero, and St.12) in Meta Tags.
Language Tags
Is your site in English, Spanish, French, German or what? You can use   Language Meta Tags to supply language information to search engines.  In  other words this Tag is used to known as localization tag.
Copyrights Tags
Who is the Owner of the site? We use normally a Company Name in copyrights tag e.g. Smart Solutions Net Technologies ®
Zip Code Tags
Enter your zip code in Zip Code Met Tags. You can use your state or   city Zip Code to supply the local information to the Search Engines.
City or Town Tags
Your City or town name. E.g. New Mexico Nevada.
Country Tags
Your Country, you must use all names in Country Meta Tags e.g. USA, United States, United States Of America, America, etc.
Revisit-After Tags
This tells search engine how often this page updates. (Eg. 25 days)   Mostly search engines ignore this Meta tags and to follow their own   policies of visiting a website.
Distribution Tags
This distribution Meta tags normally used to publish a website in   some limited areas and regions where the webmaster or a site owner needs   to get traffic.
Robots Tags
You can use robots tags to direct search engines to index your pages   with noidex, nofollow, index, follow links on a page. The values ALL  and  NONE set all directives on or off: [ALL=INDEX,FOLLOW] and   [NONE=NOINDEX,NOFOLLOW].
The above Meta tags are in detail and complete, these meta tags will   be added after the "html" tag and used to put before the "body" area of   the page. You can use these Meta tags globally for your website or can   add up for a particular page. This article has shown that how easily  you  can write such advance Meta tags without doing hard work on them.  You  can also use such free online tools to get Meta tags. But I’d  recommend  you to do not use these services for security reason. I’m  hoping that  this article will help you to create such advance Meta Tags  for your  websites. In the next article I’ll explain how to write  effective page  titles and page description for a particular page or a  website.

