Digital Inputs and Outputs

I thought it’d be useful recently to take a list of email addresses, say
from sales leads, and determine how “legitimate” the leads were. Obviously
there are many pieces of information that could go into this, but the one
that I thought of first was the strength of the email domain.

So, if your email is: soandso@walmart.com, maybe that’s a better lead than
otherperson@bobsbaitshack.com. But how do we rate such things quickly?

So I thought of building an API for it. A domain reputation API. Right now
I’m thinking super simple:

• A list of the domains corresponding to the Fortune 1000 companies, along
  with an integer representing their rank

• A list of the top 100 colleges, along with an integer representing their
  rank

It’s going to be a REST API, so youd simply submit your domains via
danielmiessler.com/reputation/hp.com, and it’ll return back your reputation
number. Same with university domains, like stanford.edu, or uf.edu.

It could also be expanded to support more types of institution; I just need
lists of domains and a way of ranking them. And we could potentially add
additional metrics as well–beyond just overall rank.

Anyway, what do you guys think? Useful? Any ideas on what to add?