SkyServer logs are public and contain clientIP, web page, sql query, and performance information. They are used for management, for experiments and for education in analyzing web site traffic. Aggregate statistics are reported (see Web Site Traffic). These logs can be queried by the public (see Advanced Searches). Web and SQL traffic from the SDSS collaborators is aggregated but not published.
To opt out of the public weblog (to hide your queries) please send mail to the SDSS Help Desk.