Eintrag in htaccess

RewriteEngine On
RewriteRule ^(.*)(ä|Ä|ä|Ä)(.*) /$1ae$3 [L,R=301]
RewriteRule ^(.*)(ö|Ö|ö|Ö)(.*) /$1oe$3 [L,R=301]
RewriteRule ^(.*)(ü|ý|ü|Ü)(.*) /$1ue$3 [L,R=301]
RewriteRule ^(.*)(ß|ß)(.*) /$1ss$3 [L,R=301]

Alle Umlaute (Ä,Ö,Ü) und ß werden so mit dem Status 301: Moved Permanently umgeleitet.