On Apr 26, 10:29 pm, RichardLynch <[email protected]> wrote:
> What exactly does DNS Lookup mean?

It's the time elapsed between
nsIHttpActivityObserver.ACTIVITY_SUBTYPE_REQUEST_HEADER and
nsISocketTransport.STATUS_CONNECTING_TO events. The only event that
can be sent in between these two is STATUS_RESOLVING

MDC says:

ACTIVITY_SUBTYPE_REQUEST_HEADER The HTTP request is about to be queued
for sending.
STATUS_RESOLVING Transport is resolving the host. Usually a DNS
lookup. STATUS_RESOLVING may be skipped if the host does not need to
be resolved.

Honza





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