This is what I was thinking. I mean, sure, I may have 50 domains but when I sign up with one domain, the program has no understanding of the representation they will receive through the other 49.
Maybe "Multiple Domains" in the application instead of the one line item?
This wouldn't replace a data scrub to check your incoming links and site content verification, but maybe the small "heads up" in advance could save a little time in the process.
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