alt Hacker News> It is too fragile (multiple point of failure).
If your DNS isn't working, you're not going to be making connections anyway. And if you can't keep DNSSEC running, you can't keep certs up to date either. DNSSEC is actually much simpler, with fewer failure points, once you set it up.
> It is high volume (=it need be cacheable).
It is. Unlike certificates. And the cache lifetimes are much shorter than typical certificate lifetimes.
It is self-evidently not correct that companies that can't keep DNSSEC running can't keep certs running. Entire TLDs have fallen off the Internet because DNSSEC has broken. A certificate never took Slack down for half a day. It's just obviously not true.