This is on purpose.

Because it would mean two sql query per topic page to rewrite them properly, as you need to find out both next and previous topic info, which is why phpBB does not directly link to the next and previous topics.
So there is no real need to set up a new rewritten url type for links you should end up http 301 redirecting with the zero dupe, as they are originally a great source of duplicates.

So leaving these urls untouched is saving resources and the default robots.txt is disallowing them so ...

You could as here only show them to logged users if you prefer, but SEO wise, it's in all cases a link to disallow.

++

You can do the following :

Code: Select all

#
#-----[ OPEN ]------------------------------------------
#


viewtopic.php


#
#-----[ FIND ]------------------------------------------
#

$view_prev_topic_url = append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&view=previous");
$view_next_topic_url = append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&view=next");

//
// Mozilla navigation bar
//
$nav_links['prev'] = array(
   'url' => $view_prev_topic_url,
   'title' => $lang['View_previous_topic']
);
$nav_links['next'] = array(
   'url' => $view_next_topic_url,
   'title' => $lang['View_next_topic']
);


#
#-----[ REPLACE WITH ]------------------------------------------
#
// www.phpBB-SEO.com SEO TOOLKIT BEGIN
if ($userdata['session_logged_in']) {
$view_prev_topic_url = append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&view=previous");
$view_next_topic_url = append_sid("viewtopic.$phpEx?" . POST_TOPIC_URL . "=$topic_id&view=next");

//
// Mozilla navigation bar
//
$nav_links['prev'] = array(
   'url' => $view_prev_topic_url,
   'title' => $lang['View_previous_topic']
);
$nav_links['next'] = array(
   'url' => $view_next_topic_url,
   'title' => $lang['View_next_topic']
);
}
// www.phpBB-SEO.com SEO TOOLKIT END

#
#-----[ SAVE/CLOSE ALL FILES ]------------------------------------------
#
# EoM

Will get rid of the same links in Mozilla navigation bar as well for guest