care needs to be taken not to create an infinite redirection loop a preferred method 40 of processing redirection urls provided to a server computer system 16 by a client computer system 12 is illustrated in fig3 as each client request is received 42 the data provided as part of the request is examined to determine whether the request embeds the redirect key word 44 if the url data does not specify a redirection request consistent with the present invention the url data is checked 46 to determine whether the url data conventionally specifies an existent local web page if the web page does not exist or based on the client identification data provided via the http protocol in connection with the url client request the particular client is not permitted access to the existent web pages the httpd server 30 determines a corresponding error message 48 that is returned to the client computer system 12 otherwise the httpd server 30 proceeds and serves the local web page 50 to the client computer system 12 where url data at least specifies a redirection request 52 the url data is further checked for validity a table of valid combinations of client and graphic image identifiers preferably cached in memory in the server system 16 may be used to initially establish the validity of the redirection request the validation code may.