Authrity link building

[seowatches]

This is one of the strangest things i have yet to see on Link Building ,

one of the sites i follow up managed to build links on huge sites like :

speedtest.net , pbs.org , ucla.edu  ,etc ,

its done in some downloadble file like that :

http://cdn.speedtest.net/mobile/SpeedTestHD_v2.0.apk?pagetype=&pageNum=124

basically when you click on the link it downloads a file ,

and i see that it was done hundreds of times in large numbers of top ranked sites ,

does any one know how to do it ?

[KeriMorgret]

These are not real links, but a bug where OSE thinks pdf files and downloadable programs are links. The problem is in the process of being fixed. Rand has some more information in today's blog post at http://www.seomoz.org/blog/november-linkscape-update-is-live

[seowatches]

Hey ,

any idea how does it get done ?!

[KeriMorgret]

Actually, this is most likely a bug in Open Site Explorer. A lot of the problem has been eliminated, but there are still some cases when the crawler spots a downloadable file and thinks it's a link. We had an update mid-day yesterday to Linkscape that removed many of these links (so if you were looking at data from a couple of days ago, you'll want to rerun the data). The December Linkscape update should take care of most of these downloads that get classified as links.