Apart from the main panel domain, Adserver.Online uses several other domains for internal purposes (e.g. impression pixel, click tracking, etc.). The good news is that these domains can be customised too.

Feature availability

Customisation of internal domains is available to paid plan users starting from our Premium plan (not available on a Trial Premium plan).


Firstly, you should own a spare domain. If you don't, you can buy one. Besides, you have to be able to configure it. Meaning you should have access to the DNS management panel and have knowledge of how to use it.

We kindly recommend using a separate top-level domain for this customisation.


First, you need to update your DNS settings depending on which domain(s) you want to customise.

Customizable domain:

Subdomain Record Type Target Subdomain purpose
track CNAME track.adsrv.net Tracking domain. Used for Direct links, clicks and impressions tracking
srv CNAME srv.adsrv.net Ad server domain. Receives ad requests and responds with ads.
media CNAME media.adsrv.net CDN. Used for static files delivery (e.g. js codes, image, video files)

Second, you need to contact support and ask them to finalise the setup. We will also issue a "Let's Encrypt" certificate for your domain.

Configuration example

Let's say your top-level domain is example.com and you would like to customise our "track" subdomain.

To do that, you just need to go to your domain manager and create a new DNS record:

track.example.com CNAME track.adsrv.net

Please note that the subdomain name is important. You should not use any other subdomains except for those mentioned in the table above.

For example, this record won't work:

mytracker.example.com CNAME track.adsrv.net