write2david/Portage-HOMEPAGE-Checker
This script tests all the HOMEPAGE variables in all the ebuilds in the Portage tree. For that HOMEPAGE URL's that done have a 200 (OK) or 302 (redirect) HTTP status code, this script displays that URL, what the status code is, and which ebuilds use it. Then bugs can be filed on bugs.gentoo.org so that the HOMEPAGE can be updated.