META Tags are an important part of every website. They simply define your website by providing useful information. META tags also help categorize your website as well as helping the search engines make better of your website, seen as many search engines have now incorporated reading META tags as part of their indexing formulas. This thread consists of useful information on using META Tags, as well the ones that will become useful for your website.
All META Tags must be inserted after the '<head>' tag and before '</head>'. If misplaced they will not work.
I'll started off with some off the most popular.
1. Description META Tag
This tag requires a simple description of your website or web-page. This is very useful not only for the reader but also for search engines. The description used within this tag is mostly used as the description when indexed on a search engine. Try to keep a maximum of 150 characters.
<meta name="Description" content="A description of your website/web-page goes here">
2. Author META Tag
This tag tells the user and a search engine who the author is of that website.
<META name="Author" content="Information about the author goes here">
3. Keywords META Tag
This is tag is mostly used by search engines to track key words for your website. Although you must be careful when using this META Tag. Do not ever use other companies names or trademarks as your keywords. Some companies have run lawsuits against a website for trying to steal traffic on search engines.
<META name="Keywords" content="Keywords for your website separated by commas">
4. Copyright META Tag
This tag can be used to display trademarks, copyright or any other information.
<META name="Copyright" content="Copyright information goes here">
5. Language META Tag
This tag is used to tell the user and the search engine what languages the website uses. Below is what is displayed within this META tag:
EN-GB (English-Great Britain)
EN-US (English-United States)
<META HTTP-EQUIV="Content-Language" content="Read above for your language, for example EN">
7. Content Type META Tag
The HTTP content type may be extended to give the character set. It is recommended to always use this tag and to specify the charset.
<META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=UTF-8">
7. Robots META Tag
Robots, also known as spiders, are used by search engines to 'spider' or search your website. Robots are used to categorize your website.
<META name="Robots" content="index,follow">
8. Refresh META Tag
This tag is normally used one websites that re-direct to another page or website after so many seconds. Chance the 0 to how many seconds you want to wait before it re-directs.
INDEX: Search engine robots should include this page.
FOLLOW: Robots should follow links from this page to other pages.
NOINDEX: Links can be explored, although the page is not indexed.
NOFOLLOW: The page can be indexed, but no links are explored.
NONE: Robots can ignore the page.
<META NAME="ROBOTS" CONTENT="ALL">
<META NAME="ROBOTS" CONTENT="INDEX,NOFOLLOW">
<META NAME="ROBOTS" CONTENT="NOINDEX,FOLLOW">
<META NAME="ROBOTS" CONTENT="NONE">
If you have any questions concerning META Tags, please ask here.