There are 26 letters in the alphabet. Since capital or lowercase letters can be used that’s 52 options. Since numbers can be used, that’s 10 options. Hyphens can also be used. That’s a total of 63 combinations. Additionally there are 19 characters on the end of the url. Check the math. But that looks like 6 quadrillion combinations.
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If you think the math might be wrong, email firstname.lastname@example.org
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