Bobby is a very useful resource which should be used by all gateway developers and maintainers. It is worth noting that Web-related technologies change, users change and information changes. However, seldom do any of these variables change at the same time. The result is that you should always be aware that the criteria for usability and accessibility are not set in stone. Along with other aspects of the gateway, these criteria should be reviewed from time to time and, if need be, adjusted to meet changes and developments.
Caution is therefore advisable when implementing any user-side technological changes.
Adopting a Web accessibility policy makes your Web site more usable for all users.