Norman does not have online scanner, only the Sandbox where you can send samples
I see... It's not a batch submission process and you need to test sample by sample.
Is there any difference for virustotal? Code emulation only?
Comodo will do the same, i.e., upload the sample and test it virtualized/sandboxed, then return the answer to the user (15 minutes if it is a malware). It's a way to use the cloud and improve detection. Maybe avast could consider this.
What it's good its Normal zero-day protection then. Do you have further information about it?