Meta tags (meta tags)

Meta tags (meta tags) - these HTML tags stating the page. In the tag contains information about the website, giving commands browsers and crawlers. Meta tags are located between the opening and closing HEAD tag. There are several groups of meta tags, depending on their functions.

Information for search engines

The first group consists of meta tags for search engines to provide information on the internal factors and site optimization.
It is generally believed that the meta tags of the group no longer play
a significant importance in the process of positioning, but
nevertheless it is recommended to not forget about them and give them
the appropriate data.

Description - The description of the page to be taken into account by the search engine and it appears in search results as so. snippet.

Keyword - this meta tag keywords are typed appearing on the site.

Robots - management of document indexing and distributed on the links.
The values of this tag can be: index / noindex (indexed or not),
follow / nofollow (indicates whether the machine indexing to follow the
links on the site or not), all (allows both indexing and counting links)
, none (combines the nofollow and noindex).

Revisit - very important tag that tells the crawler how often should crawl your site. Whether you carry the tag indexing machines according to their algorithms and deadlines.

The commands for the browser

Information provided is for browsers using the following meta - tags:

Content-Type - specifies the character encoding of the page.

Content-Language - sets the language in which the text was written on the page.

Cache-control - defines the parameters of the store in the cache.

Refresh - defines the period of time after which the user will be
redirected to the URL where the target page does not exist, or display
an error message 404