General instructions for domain mapping

If you have purchased the ‘Host on your own Domain’ feature, you will want to map your domain name to your WorldTV channel. To set up domain mapping for your channel, you need to configure a CNAME record at your domain name registrar. After you set up a CNAME record at your domain name registrar, you then configure the Domain Mapping feature inside your WorldTV Editor. You will find the Domain Mapping feature as a new tab under Channel Settings.

This article describes how to setup a CNAME record at your registrar if you are using a registrar other than GoDaddy. If you’re using GoDaddy, we have step-by-step instructions here.

What is a CNAME Record?

A CNAME Record is a domain alias. In plain language, it is like a signpost that points one domain name to another domain name. You use a CNAME record to point your domain name to our servers.

WorldTV offers domain mapping via a CNAME Record because it’s the easiest way to point your domain name to your WorldTV channel. The only thing you need to know is the URL for the sub-domain that we created for your channel. You can see this on the Domain Mapping tab. An example would be alxtv.worldtv.com.

Finding out if your registrar supports domain mapping

In order to set up domain mapping, your registrar must support modifying the CNAME Record. To find out if your registrar supports this, you can search their knowledge base / help area, search google, or send them an email similar to the example below. If your registrar does not support modifying the CNAME Record, you will not be able to configure domain mapping. We recommend transferring your domain name to a different registrar that does support CNAME modifications, such as GoDaddy.com. Most decent domain registrars support this feature.

Example Email to Registrar

I’m using WorldTV (http://worldtv.com) to host my own web TV channel. WorldTV supports a feature called domain mapping, where my domain name can be pointed at their servers. In order to use this feature, my registrar must support custom DNS services. I need control over the DNS records for my domain, specifically the ability to create and modify A, MX, and CNAME records. Do you offer such a service? Please send me details as to how it works and how I can turn it on for my account.

Modifying the CNAME Record

  1. Find your DNS management area
    Your domain registrar’s documentation (knowledge base, support centre, etc) should explain how to manage and modify DNS records including the CNAME record. If you can’t find this information on their website, consider sending them an email as described above. If you’re not sure what to look for, try to find something similar to: Advanced DNS, Custom DNS, Host Management, or DNS Management.
  2. Find the CNAME records
    Some registrars have different sections of the DNS management page for different types of DNS records. In this case, look for the area called something like: CNAME Records, Aliases, or Host Aliases. Other registrars have a single area for managing DNS records. Typically you select the type of record from a drop-down menu. Make sure to select CNAME as the type.
  3. Set up your CNAME record for domain mapping
    There will usually be two fields where you can enter information for the CNAME record. These may be called: Alias and Point to or Other Host; Host Name and URL; or Name and Value. Most of the time, you should enter www for the first field (Alias, Host Name, Name, etc). For the second field (Point to, Other Host, URL, Value, etc) enter the sub-domain for your channel (eg alxtv.worldtv.com) making sure to *NOT* include http:// at the beginning.

    Some registrars may require you to enter your sub-domain in a certain way, such as adding a dot at the end, so look carefully for any instructions on the page about doing this. After you’ve entered the information for your CNAME record, save your changes.

Waiting for the DNS changes to propagate

It usually takes 12-24 hours for the DNS change you made to propagate (spread) across the internet. So you may think it is not working when actually it is. Ask a friend to try from their computer in a different location if you are unsure. Another tip is to avoid visiting your domain name (eg www.alxklive.com) until after you have made all the changes. This is because your ISP will cache (temporarily store) the old DNS settings for up to 24 hours before finding out about any new ones. So if you have not visited your domain name in the past 24 hours and have set up the settings correctly, it should work first time. Again, if you are not sure, ask a friend to check from their computer in a different location. Once they’ve checked, they may have cached DNS information as well however.

Support for this Feature

We would like to be able to provide bespoke support for this feature but there are so many different domain registrars which each have their own unique way of doing things that it is unfeasible for us to do so. Note that we do provide support and assistance with domain names purchased from (or transferred into) GoDaddy.