don't use .index

[roedygr]

You issue a warning message suggesting not using a .index explicit url.

If you do that, sometimes you will get a Permanent redirect asking you to put the .index in. In that case, you are probably best to put the .index in to avoid the overhead of future redirects.

[Albert Wiersch]

Hello,

The message I believe you are referring to is just a message (blue) and is not an error (red) or warning (yellow) message. If the web server doesn't like it an issues a permanent redirect when you don't explicitly link the index page (like index.html or index.php), then it may be best to disable that message/suggestion, but I think this suggestion is reasonable and helpful in most cases.