Get the time immediately before the classMessage started the
domain lookup name for the resource.
It will be 0 if no domain lookup was required to fetch the resource (a
persistent connection was used or resource was loaded from the local disk
cache).
Get the time immediately before the classMessage started the domain lookup name for the resource.
It will be 0 if no domain lookup was required to fetch the resource (a persistent connection was used or resource was loaded from the local disk cache).