[AdamJacobMuller]

They are also paying more for bandwidth for the cross-sign certs. I'm not sure exactly how much it is but it's not 0. Serving and computing and sending extra bytes costs money too!

[why_only_15]

In the post they say:

> In addition, dropping the cross-sign will reduce the number of certificate bytes sent in a TLS handshake by over 40%

[bawolff]

I would assume it is 0. Once the cert is cross signed, what more bandwidth/computation is there?

[mcfedr]

They have to provide it as part of the chain of certificates that an acme client receives. So one more cert in every response.