DNS Configuraiotn to solve WWW.WWW

[Joso]

Hi to all, I'm new on VestaCP.
I installed vestacp on an Aruba cloud vps with these features:
TEMPLATE
Debian 9 64bit
vCPUs
1 Virtual CPUs
RAM
1 GB
DISC AREA
20 GB
with 1 IP4 and 1 IP6

the installation of vestacp was performed via ssh. During the installation I indicated as host a domain name hosted on Aruba (capyslab.it).

Then I added a new domain that is hosted on tophost.it (cristallidimurano.it), on the dns panel of tophost I added an "A" record that points to the IP dedicated to the vps.

On vestacp after the creation of the site, I have not made changes to the dns.
The result that the site is not displayed and does not resolve the DNS and shows in the address bar of the browser a double "www.www".

How can I solve this problem, can you help me to understand where I was wrong in the configuration?

Thanks

[mehargags]

pls use this tool to check if you DNS is setup and is fully propagated for your domain
https://toolbox.googleapps.com/apps/dig/

[Joso]

pls use this tool to check if you DNS is setup and is fully propagated for your domain
https://toolbox.googleapps.com/apps/dig/

Thanks for your reply and for pointing me to the google verification tool.
I would like to ask you if there is a guide to correctly configure the DNS to VestaCP, and I would like to know also if in VestaCP -> DNS the values ns1 / 2.domain.tld have to be changed and if yes, I have to enter the name of the main domain used during the installation of the dress or of the domain to which they refer?

Furthermore, those indicated in the user's configuration have such value for the purpose of managing the site?

[mehargags]

So first define if you are using an external DNS or VestaCP as DNS for domain

1. If External DNS, you just point your A record to your Server's IP. No you don't need to configure anything on VestaCP DNS page

2. If VestaCP as DNS... you should have automatic DNS values setup for you already when you create a website and have DNS option checked.