about older security advisories

hello, i am going through older security advisories at webpage [z]. i have found some links are dead, etc.. some security advisory does not contain "More information" and "Security database references". example : 1&2. please let me know : posting here is correct how can i improve ?

Who's using Debian?

Organization: Agencja interaktywna Avangardo, Szczecin, Poland Organization type: commercial Home page: https://avangardo.pl "Our agency uses Debian on two of our workstations. We have decided to use Debian because its very useful on developing websites.  We write in React, PHP and Javascript.

about /cd/vendors/

hello, i have gone through vendors list [q] one by one. i have sent emails if debian 10 is not available. the following vendors website are 404 or domain is for sale or closed. please verify. regards, leela52452 [q] https://www.debian.org/CD/vendors/ format : vendor URL of vendor reason