My server is still reporting Content-type: text/html;
charset=ISO-8859-1. This is a test, whether the
suggested <META> tag tricks work to override that. Turns
out, they don't.
In case you can't tell the "malfunction" in the first place, both
<TITLE>; and the page title (H1) should read
"Hallöchen".
iso-8859-1 with server telling iso-8859-1.
UTF-8, <META CHARSET>, server still telling ISO-8859-1.
UTF-8, <META http-equiv=...>, server still selling it as ISO-8859-1.