There's this post about what is considered valid collateral. It's not too long and will give you an idea.

If that domain can be recovered by you in any way - by email, by proving your identity, name it, it's not valid collateral.
Even more, if the possible lender thinks that you may be able to recover the domain, he's "gone".

If that domain is not valuable enough (the domain, not the underlying platform that can be moved anywhere else), again, it's not a valid collateral.


I hope it's clearer.