External Link Warning

I need a plugin through which links are directed (e.g. pluginname.php?https://www.google.co.uk) and display a page (following the template of the rest of the site) stating that this is an external link and this blog is not responsible for its content. If back is not clicked will redirect in five seconds or click here to do so now.

I’m aware that this could be done with JavaScript but seek a solution which will work without JS – that said all suggestions will be greatly appreciated.

Many thanks.