Doing caching correctly is tricky.  Some kind of cache hinting might be needed.  As a default though having it cache with a 5 minute interval would blunt the hit of a popular page very significantly.  It would also allow for the use of a CDN like Fastly, Akamai, CloudFront, or CloudFlare in front if things get very hot.<p>An even more impressive trick might be a TLS server with SNI running vhosts which could check that the content was signed by a keybase user with a DNS proof for controlling that same domain.  That would allow custom domains based on DNS CNAMEs.  Now I&#x27;m getting carried away though ;)