There is another method which does not require purchasing your
domain name.
You can simply sign up for a free blog at blogger.com and create a blog
post on the free blogging platform.
Then you just promote the blog post. This can be especially helpful for
those who are promoting affiliate programs. You can put extra information
about bonuses you are offering and an opt in form.
We think you are still better off promoting a proper landing page and opt
in page but it is another technique to consider.
Here is a blog post and video which explains how to set up your own free
blogger.com blog and use a free blog post to get past being blocked on
popular sites.