How many types of Meta Tags are there in SEO and what are their characters limits?

[AliceFowell]

How many types of Meta Tags are there in SEO and what are their characters limits?

[KateSteel]

There are three types Meta tags in SEO.

1. Meta Title tag with 60 characters limits
2. Description Meta tag with 160 characters limits
3. Keyword Meta tag with 200 characters limits

[othername0104]

Some important meta tags that one must use in the webpage are:
1. Title Tag
Limit:50-60 characters
2. Description Tag
Limit: Roughly 155 Characters
3. Keyword Tag
4. Robots Tag

[benben1]

Some important meta tags that one must use in the webpage are:
1. Title Tag: <title>The title of the Page</title> (Unique title for your page)
Limit: Google typically displays the first 50-60 characters of a title tag, or as many characters as will fit into a 512-pixel display.
2. Description Tag: <meta name = "Description" Content="Description of the Page">
Limit: Roughly 155 Characters
3. Keyword Tag: <meta name="Keyword" Content="Your Keywords">
According to Google they didn't look at meta keywords then you will be surprised that why I am mentioning it here. It is here because 'Yahoo' search still use these in their SERP. So don't miss it because still have 28% search share so why miss these 28%.
4. Robots Tag: <meta name="robots" Content="......, ......">
The valid values for Robots Meta Tags 'Content' attribute are: "INDEX", "NOINDEX", "FOLLOW", "NOFOLLOW".