common log format...unresolved hosts?

In re log analysis, we fairly consistently see about 26%-27% of
browing IP addresses showing up unresolved.

Does that much of the Internet indeed have broken DNS reverse lookups,
or is that high a percentage some sort of artifact of how the httpd
server (NCSA httpd in our case) does logging?

Received on Thursday, 13 April 1995 13:38:52 UTC