# Domains pro business
You can manage all tracking domains on page “Domains”.
# How to add a domain (video)
# How to add an SSL certificate to a domain (video)
# Domains use
Domains can be used in the following cases:
- To generate campaigns URLs. One domain can be used in different campaigns, e.g.:
http://abc.com/cmp2. The domain is chosen in the field Domain in campaign's settings.
- To launch the campaign directly with the domain, without any alias after the domain itself, e.g. the campaign will be launched with
http://abc.com/. The feature can be set up at the Domains page inside the domain's settings.
# Parking domains to campaigns (video)
How to create a campaign link with just a domain without any identificator.
# Where to buy domains?
You can buy domains from any registrator, e.g. Namecheap (opens new window).
# How to add HTTPS to a domain.
Read our page about SSL certificates.
# How to add a subdomain if the domain is already added
Add an A-record to DNS:
sub IN A x.x.x.x
sub is your subdomain's name.
In case you want to add all subdomains at once, add the following record to the DNS:
* IN A x.x.x.x
# Adding more than one domain to Keitaro
- Go to Domains page, click Add a new domain.
- Put the list of the domains separated with comma.
# Errors while adding domains
Timeout was reached- The timeout for response was reached.
Domain returned unexpected response- Usually happens when the domain's DNS records haven't updated yet.
Domain returned empty response.
Couldn't connect to server- Unable to connect to domain's server.
Couldn't resolve host name.
Couldn't resolve proxy name.
Peer certificate cannot be authenticated with given CA certificates- it seems you added a third-party certificate which is not compatible with Keitaro.
Problem with the local SSL certificate.
Couldn't use specified SSL cipher.
Timeout was reached,
Domain returned unexpected response,
Domain returned empty response,
Couldn't connect to server,
Couldn't resolve host name,
Couldn't resolve proxy nameThe domain's DNS records haven't updated yet, make sure there's only one A-record with server's ip, no AAAA-, MX- and TXT-records.
Peer certificate cannot be authenticated with given CA certificates,
Problem with the local SSL certificate,
Couldn't use specified SSL cipherCheck the domain's certificate, make sure you installed the certificate following our guide.