Broken external links and leveraging archive.org? #155
Description
Running a link-checker against the site reveals a number of external links which no longer work.
For some of these, I think we might shift towards linking to archive.org versions. For existing and active projects (qubes, siab), we should identify the new updated links.
403 Forbidden http://www.dhs.gov/about-national-cybersecurity-communications-integration-center Department of Homeland Security�s National Cybersecurity and Communications Integration Center
404 Not Found https://www.qubes-os.org/doc/wiki/ https://wiki.qubes-os.org/wiki/UserDoc/TorVM [302 from https://wiki.qubes-os.org/wiki/UserDoc/TorVM]
404 Not Found http://ilektrojohn.github.io/creepy/ Creepy
404 Not Found https://securityinabox.org/en/guide/keepass/windows KeePass for Windows
-1 Not found: The date in the certificate is invalid or has expired https://enigmail.wiki/Signature_and_Encryption PGP/MIME
-1 Not found: The server returned an invalid or unrecognized response https://www.forbes.com/sites/georgeanders/2013/11/07/a-twitter-user-is-worth-110-facebooks-98-linkedins-93/ estimated value of the average user on Facebook was $98; for Twitter, $110
-1 Timeout https://isc.sans.edu/survivaltime.html Survival Time