https://www.rfc-editor.org/rfc/rfc8767
Keeping expired DNS records is a pretty good idea. Answers for those queries could then be provided hundreds of milliseconds faster. It's also good for transparency - user visiting the web UI can see what DNS queries have been answered over the last week.
https://www.rfc-editor.org/rfc/rfc8767
Keeping expired DNS records is a pretty good idea. Answers for those queries could then be provided hundreds of milliseconds faster. It's also good for transparency - user visiting the web UI can see what DNS queries have been answered over the last week.