Skell, в index.php пропишите  <?php
if (isset($_SERVER['HTTPS'])
and $_SERVER['HTTPS'] ==
"on")
{
$url = 'http://' . $_SERVER
['HTTP_HOST'] . $_SERVER
['REQUEST_URI'];
header('HTTP/1.1 301 Moved
Permanently');
header("Refresh: 0; url=
{$url}");
header("Location: {$url}");
exit;
}

если у Вас wordpress!