Ask HN: Do you use the same Analytics code for your blog & mainsite?

Do you use the same Analytics code for your startup's blog as your startup main-site? Presuming that they are both related and branded identically.

The more deeper and point and question I am not asking is, while it might be nice to say that your startup is drawing in 20k+ uniques a month, if the majority of those come from posts you make on your startups blog, you can't really regard them as "interested leads which are targetted" can you?

While you could create segments to ignore your blog, would you regard it as easier to just segment before the fact, and just go for two UA codes?