A system quickly accesses suitable represented information, in view of a lapse time from retrieval result display to user move. A system control section (SCS) of a retrieval system server accesses a retrieval database registering retrieval priorities to be associated with respective web pages. The SCS sends a retrieval result page on which the retrieval result is to be displayed, from the web page having the higher retrieval priority on a priority basis, receives, after sending the same, a re-retrieval request or a request for the other retrieval result page, indicating a sending request for the new retrieval result page, and measures lapse time “t”.