I was taking a look at a the Let’s encrypt demo site on the SSL Test:
They are two Certification Paths but all browsers seem to use only the first one.
Maybe I am missing something but I believe that the second path is not required and it appears as “Extra Download” so it might slow down page load.
Also, the Second Path appears to be untrusted because the root cert (ISRG Root X1) is not trusted.
So, why there is a second path? It is required by some clients? It affects SSL performance?
Thanks for your answers