// Set custom "dns-prefetch" and "preconnect" headers at top of
function my_dns_prefetch()
{
// List of domains to set prefetching for
$prefetchDomains = [
'//korfmann.de',
];
$prefetchDomains = array_unique($prefetchDomains);
$result = '';
foreach ($prefetchDomains as $domain) {
$domain = esc_url($domain);
$result .= '';
$result .= '';
}
echo $result;
}
add_action('wp_head', 'my_dns_prefetch', 0);
Ausgesuchte Wohnungen bei der Vermietung Volker Korfmann