Global Meta Tags1 user found helpful
I thought I can change the default page type, then add there meta tags and it takes them for every new site, but no "bingo" there :)
Do I have to hard code the Meta Tags in the Template Header if I want the same Meta Tags for every Site?
Looks like hard coding it is :(
That being said, yes if your theme is built to honor it you can set these with page properties on the page in question. If you want them the same on every page, just hack the template.
Google do not look at meta keywords anymore but each page should have its own description and meta info relating to the content on the page.
I would at least still change your descriptions to suit the content on the page. Its better for users too when they see it in the searches.
Take a look at this article to find out more:
$pageDescription='my default description'; Loader::element('header_required',array('pageDescription'=>$pageDescription));
note that this would replace the existing header_required include, and the description would only be used if the page description wasn't set. Franz is right, no search engines use the keyword fields anymore, and the description is only used for the search engine's displayed description of that webpage, and not for ranking purposes.