Hello,
Hope you are doing well.
I am interested in the job and in order to provide you accurate/ reasonable price I need to review your website. Please share your website URL.
We'll prepare an audit report for you to review and based on that we can define scope, activities, amount of effort required and other strategy to achieve goals including price.
Kindly revert back to with question you may have for me.
Awaiting for your positive response.
Regards,
Andy