checkbot(1p) on Linux
The text 12ab224e88fd, as Debian 5.0 (Lenny) shipped it.
WWW Link Verifier
Flags it lists
-
--allow-simple-hosts -
--cookies -
--debug -
--enable-virtual -
--help -
--internal-only -
--interval -
--language -
--note -
--sleep -
--suppress -
--timeout -
--verbose