I'd recommend that you google travel insurance and have a look at a few, as there are many products out there. A number of online products are simple replicas of products from the traditional agency business - so its important that you search out the true online suppliers.
There are a few comparative websites out there, but you'd ideally be looking at the top 3 within Google sponsored links. They're paying to be there, they are able to demonstrate sound products and good prices.
I know quite a lot about travel insurance, I'm a Director of, quite probably, the leading online supplier of direct travel insurance in the Australian market - so I think I'm well quallified on the subject. Should you have any questions, I'd be more than happy to recieve them.
Cheers
Nick