Why do Domain Authority Scores vary?

[Sneha.chandan]

Hello,

When I look for bloggers from blogspot and wordpress portals, I find high domain authority scores on moz but if I check their individual sites without blogspot or wordpress I see a low domain score why is this? and is there a harm in selecting such sites?

For example hypothetically : www.lizzie.blogspot.co.uk - high domain score & www.lizzie.co.uk - low domain score.

Thanks & Regards,

Sneha

[julie-getonthemap]

For your own primary website, I always recommend using a popular TLD domain.

But if your purpose is networking and backlinks, sites like blogspot and weebly offer many advantages. Because of the strength of their root domain, it is easier to build page authority for a blog. You can get link diversity and high page authority in one fell swoop.  You can benefit from the way those blogspot blogs link to each other.

[GastonRiera]

Hi Sneha,

I believe that you're answering the question yourself, but there is a little missunderstanding there.

On one hand, remember that you're analyzing the domain authority, so what counts there are the backlinks and the magic that Moz takes into the mix. For mor information about domain authority, check this article.

On the other hand, blogspot is a HUGE domain, and has millons of backlinks, so it's completely normal for it to be really authoritative in the eyes of Moz metrics. And, the personal domain will probably always have less backlinks and have lower metrics.

Regading the harm in using, there is no harm. Also, you must take into consideration that there is almost none room for SEO optimizations when using a free blog host.

Hope I've helped.
Best luck.
GR.