Backlinks Watchdog

One of the most important assets a site has is backlinks. This is probably the most important factor in getting higher ranking.
Backlinks are sometimes traded for money or some kind of other valuable goods. In other cases there might be a link exchange.
It could become a tough job to manage those valuable backlinks and to watch if any of the backlinks are being changed and thus, the agreement that brought to this back link is violated.
SheerSEO can help with this, by allowing you to define your most valuable backlinks as "guarded backlinks".
Each guarded backlink is being examined daily and if there is a change in the backlink, you will be notified through email.

The following aspects are being monitored per backlink:

Anchor text.

Page rank.

Number of outbound links in the referring page.

Availability of the page.

Presence of meta tags "nofollow" and "noindex".

Existance of the link to your site.

Presense of "nofollow" attribute on the backlink (rel="nofollow" causes the link not to pass rank).