TYPO3 Core

Now that the new TypoScript option "showWebsiteTitle" exists, setting its value based on conditions would provide more flexibility.

Think of a setup where the website title is set for all pages, such as ' The page title - ACME Incorporated '.
When providing a SEO-optimized title for a particular page, adding the website title as a suffix (or prefix) often enough is no longer reasonable: the title's length* is then needed for Keywords, benefits, and a Call-To-Action (e.g. ' TYPO3: Secure & Flexible Websites | Try Demo now! | ACME ').

*Remember: the title length is limited. Long titles will be trimmed in Search Engine Result Pages (and browser tabs).

It would therefore be useful setting the website title as a default, which is omitted if a SEO title is given.

Example TypoScript:

config {
    pageTitleFirst = 1
    pageTitleSeparator = |
    pageTitleSeparator.noTrimWrap = | | |
    showWebsiteTitle = 0
    showWebsiteTitle.if.isTrue.data = page:seo_title
}

I already prepared a small patch which would add this behavior.