The figures are an interesting addition to the fairly scarce body of independently audited data on men's online media.
Zoo's IPC-owned rival Nuts has published an ABCe certificate for June, which showed it attracted 631,467 unique users to its that month. Nuts' print circulation also fell in the last set of ABCs by 6% to 277,269 copies.
Monkey, the weekly digital magazine launched by Dennis Publishing, has its own ABCe-audited figure of 245,404 "publication openings" for January-June 2007, up 17% from July-December 2006.
Emap also had its FHM ABCe audited in the same months in Zoo. The site drew 1,729,797 unique users in March, falling slightly to 1,702,296 in July.
IPC's monthly Loaded's recorded a June ABCe of 206,952 unique users.
FHM's print circulation was down 16.1% period on period to 311,590 and Loaded's was down 25.9% period on period to 120,492.