P.S. My version is 1.7.2

Marcus, the "nofollow" link attribute was originally created to block search engines from following external links to avoid a large amount of spam. But Newsfeed it is not the place where you can see the spam activity. Also, to create oembed links Newsfeed use the oembed third-party library,  and adding nofollow attribute to oembed links requires complex code reorganisation. According the reasons mentioned above this is not the major task.  But if you need this to be changed, you can implement it by custom code modification.

If you are not familiar with the code modification or plugin development, it would be better for you to find a developer who can help you. You can do it here: http://www.oxwall.org/market/specialists.

Ok thanks so much! i have heard that 1.7.3 version takes care of that i mean adds nofollow rel to outgoing links is it global?

Marcus, this functionality to automatically add rel="nofollow" attributes for all external links was implemented in the 1.5.3 version to discourage spam bots. But as I wrote above this not includes oembed code links.

Thanks so much, Do you know which file currently is creating oembed links I think I will just add nofollow rel to the default link what do you think?

Marcus, it is possible, you will need to edit /ow_plugins/newsfeed/views/formats/image_content.html file. But you should remember it may affect to other newsfeed links.

Thanks so much! How about this:

If ($_SERVER['SERVER_NAME'] == "my URL")
{
$rel_nofollow = "";
}
else
{
$rel_nofollow = "rel="nofollow"";
}

Maybe it's better to use jQuery?

Marcus, since this is considered as custom code modification I'll move this topic to Custom Code Modifications Forum.

Topic was moved from General Questions.