which things are remember when hosting site for on web

[eluser]mahe11[/eluser]
Thanks to all.
It work properly but database not loaded.
I change system/application/config/database.php


$active_group = "default";
$active_record = TRUE;
$db['default']['hostname'] = "myhost";
$db['default']['username'] = "dbusername";
$db['default']['password'] = "dbpassword";
$db['default']['database'] = "dbname";
$db['default']['dbdriver'] = "mysql";
$db['default']['dbprefix'] = "";
$db['default']['pconnect'] = TRUE;
$db['default']['db_debug'] = TRUE;
$db['default']['cache_on'] = FALSE;
$db['default']['cachedir'] = "";
$db['default']['char_set'] = "utf8";
$db['default']['dbcollat'] = "utf8_general_ci";


is it correct or some other changes also do.