Is domainalias a domain?

[Snef]

Hi,

I have a Plesk license for 100 domains. Very clear
Is a domainalias counter for a domain? E.g. I have one domain with hosting setup and I enter 99 domainaliasses (just as example!). Is this the limit (100 domains) or can I still create 99 normal domains?

Thanks!

Snef.