Well, they could be keeping some old records in that count, so it's probably overestimating it. But I don't know how there could be 3 or 4 million extra domains there.
Even if hugedomains' annual sell-through rate is 5%, that doesn't take very much away from 7 million.
They'd have to have dropped a ton of their domains?
maybe there's another reason why it;s miscounted. I don't know.
doubt they own any new TLD domains
they have some .net and org but probably negligible compared to the .coms