netstiff (formerly known as webdiff) is a powerful
Web and FTP site update checker. It supports a
variety of different methods (diff, HTML, size,
date, MD5 sum, regexp) to check for updates. There
are also sophisticated settings to make it useful
for partly dynamic Web pages. Without any given
arguments, netstiff will either run its
interactive configuration tool or check your sites
for updates and print the changes in a
diff(1)-like manner.
