And in some cases, your DNS provider may not know how to setup a "CNAME" record. Some providers only use "A" records.
Some DNS providers will convince you to use URL forwarding, where your domain is redirected to the DNS providers servers. They set their servers to simply load any portion of the desired website ("www.yourdomain.com" or "yourdomain.com") from your Blog*Spot website ("yourblog.blogspot.com").
This will indeed load the content, as desired. There are several downsides to this "solution", though.
- Your DNS provider may have to set this up in their servers, it's possibly not a DNS setting that you can make.
- As the reader views your forwarded blog, the content of the address bar in the browser will be inaccurate.
- In some cases, it will constantly indicate "www.yourdomain.com" or "yourdomain.com".
- In other cases, you'll even see "myblog.blogspot.com".
- In most cases, you'll see no detail about the actual URL being viewed.
- We're unsure about how well search engine spiders, and other robotic visitors, will react to URL forwarding.
- URL forwarding bypasses the load balancing provided by "ghs.google.com", and this is bad for everybody.
Blogger has admitted that Custom Domains needs work. Let's wait for them to figure out how it should be setup, at their end. Try and avoid using URL Forwarding, unless you are really desperate.