Comment on Ask HN: How can Google Maps built in URL shortener be so short?Comments−jones161815yI agree with chetan51. There are 36 ^ 4 = 1,679,616 possible four-character short links. I imagine these are permanent. When they run out, they'll go to 5 for the next 60 million, etc.−jaredsohn15yThey probably use less, though. I'm guessing they automatically filter out dictionary words, especially profane ones.
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I agree with chetan51. There are 36 ^ 4 = 1,679,616 possible four-character short links. I imagine these are permanent. When they run out, they'll go to 5 for the next 60 million, etc.
They probably use less, though. I'm guessing they automatically filter out dictionary words, especially profane ones.