Domain Authoriy/Link Authority - Link Building

[askshopper]

At what point do you think that an inbound link becomes a bad or low quality link when it comes to the inbound links page domain Authority and page Authority.

SO as they are scored 1-100 in each case.

At what score would you attempt to get rid of such links.

[William.Lau]

I would say <20. But this is really up for grabs. Sometimes low authority sites become high authority. I believe natural links will be natural links. Bad links will be easy to tell. Poor content, site structure etc.

[TomRayner]

Obviously, time is an issue here.  With the Mozscape updating once every 3 weeks (roughly), you might get some PA 1 pages that would be great to have a link on.

By in large, I also wouldn't remove links solely on PA/DA.  If you're trying to identify spammy links, you may want to start at something that is PA >20 and DA>15 for example, but you'll need to look at a lot of other elements.  What is the websites link profile like? Is it in a bad neighbourhood? Is it indexed in Google? Is it over-optimised on site? How many outbound links are there? Where do they link to? Do they have dodgy blogrolls etc.

PA/DA may start this process, but you do run the risk of missing other offending sites with a higher score.  Directories are often one of these, but you could get a decent DA/PA blog that has been deindexed, or is blatantly selling links.

It's a decent metric for finding dodgy links, but by no means the be all and end all.  I'd recommend taking a look at the LinkDetox tool - you can pay for one complete scan with just a tweet.  It looks at your link profile and categorises what links may be toxic and suspicious, based on a number of metrics that they've put together.  Put in tandem with PA/DA, you'd be well on your way in identifying any bad links.