Thread: Is this a linkbuilding?

My google alert for one of my client's competitors check is full of links like couple below:

http://joyceswellnesscenter.com/tazxi/dmp.php?pro-chef-cooking-schools-advanced-classes
http://ashevillesmiles.com/rklel/hrg.php?teacher-who-teaches-cooking

what is this? some form of links? all page is in plain text though?

Both of those pages are producing 404 errors for me...likely a profile link was built or a comment link and they may have been removed.

Yes those are reports regarding to error links.

Just wasting time and these pages are no longer exist which means 404 error.