# Digital Certificate Chain Verification

Does a certificate contain the complete chain of all certificates up to the trusted root certificate, or does the program that verifies certificates have to fetch each parent certificate individually in the chain to reach a trusted root certificate?

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The certificate wouldn't need to be resigned; the site just needs to change where it tells the browsers to find the other certificates. $\:$ – Ricky Demer Aug 14 '12 at 6:45