TYPO3 contains various SEO related functionality out of the box. The following provides an introduction in those features.
The site title is basically a variable that describes the current web site. It is used in title tag generation as for example prefix. If your website is called “TYPO3 News” and the current page is called “Latest” the page title will be something like “TYPO3 News: Latest”.
The site title can be configured in the sites module and is translatable.