Usage of the Cambridge Journals Online site is being constantly monitored to prevent abuse of Cambridge Journals content.
In the course of an hour, a Cambridge Journals Online user accessing the site from a single IP address is allowed to view 1,000 pages from the site as a whole, of which 100 pages may be full-text article downloads.
Proxy servers are allowed to download 4,000 pages per hour of which 200 may be full-text articles. Search engine robots are allowed to view an unlimited number of pages. If the approved number of downloads is exceeded, the user sees a message to that effect and asks them to resume activity in an hour.