With the programming expertise of Xiyuan Shen and our good friend Ian Gilman, I set out to do something about this. I knew from having seen the awesome yet thoroughly creepy Phantom Limb (demo) that it was possible to inject a mouse-marker using a bookmarklet. This would allow us to run our code on almost any webpage, without the author having to include our script on their page. It could be injected on an as-needed basis by the presenter.
CNAME records don’t support naked domains. Your site has to be at www.example.com, it can’t be at simply example.com, the root, or apex, record of your domain. On the other hand, A records can only support IP addresses.
There are a number of solutions to this problem, so I’ll list some here: