2 ms·
Maybe it's early and I've not drank enough coffee yet, but what benefit would this provide? You'll be in effect doubling the DNS lookups needed to connect to a
by jsjohnst 9y ago
Maybe it's early and I've not drank enough coffee yet, but what benefit would this provide? You'll be in effect doubling the DNS lookups needed to connect to a website adding latency to time to first byte, with seemingly zero benefit.
- JdeBP 9y agoAs I pointed out at https://news.ycombinator.com/item?id=14721416 https://news.ycombinator.com/item?id=14721416 , the claim of "doubling the DNS lookups" simply does not hold water if actually analysed.
- apenwarr 9y agoThe main benefit would be the ability to offer public Internet-facing services through a NAT, even a carrier-grade NAT that lumps multiple ISP customers behind a single IP address. (You would need some kind of cooperation from the NAT to be able to allow incoming connections on a port range.) JdeBP's post provides a good answer about the SRV records. The short version is a single DNS packet can contain both A/AAAA and SRV responses.