Credit scores, are different for each institution.
Each institution has 'essential requirements', plus anything else that they think is deemed necessary.
There are some 'credit score' websites around, which will compile statistics from the information that you give, which do not leave a 'marker' on your file - BUT these are very 'broad ranged' and are only 'general'.
It is possible to get a really 'perfect score' from these, but that does not correspond with what your lender is prepared to give you-in fact, you could be declined, as they may have other criteria!