The implementation of a protocol must be robust. Each implementation
must expect to interoperate with others created by different
individuals. While the goal of this specification is to be explicit
about the protocol there is the possibility of differing
interpretations. In general, an implementation should be conservative
in its sending behavior, and liberal in its receiving behavior. That
is, it should be careful to send well-formed datagrams, but should
accept any datagram that it can interpret (e.g., not object to
technical errors where the meaning is still clear).
Abstract- The usefulness of external references to websitesis a crucial factor of web-monitoring. It is of high general interest whether your website is visited by the estimated target group or not. This publication measures the value of references of websites by bringing the idea of citation-index to web-analytic tools.