There are a couple of open PRs to remove entries which look like they might have been repurposed.
- The domain registration is after PSL submission. This indicates that the owner might have changed.
- The _psl DNS record is missing. This indicates that people are not following our guidance but we haven't enforced it so it's common.
- The domain is offline.
- The organization website is offline.
- The contact e-mail is unreachable.
- No subdomains have been discovered. This depends on the likelihood that we would discover them.
- Search engines indicates no active site in use.
- CT logs indicate no active sites in use.
- Virustotal or similar indicate abuse.
I would like to formulate a policy for older entries on how to proceed.
The most obvious to me would be:
1. If we think your entry might be unused we send you an email and ask if you still need it.
2. If we get no reply we try to find a different contact using the organization website.
3. If no contact can be established and we cannot find any evidence of subdomain use we remove the entry.
The last point is a bit too handwavy for my taste but maybe it's sufficient.
BR
Simon