DNS? Edit : actually cloudflare hides a lot of stuff now, but when it doesn't you can see Heroku and probably others: http://www.dnswatch.info/dns/dnslookup?l

DNS? Edit : actually cloudflare hides a lot of stuff now, but when it doesn't you can see Heroku and probably others: http://www.dnswatch.info/dns/dnslookup?la=en&host=api.playtomic.com&type=A&submit=Resolve http://www.dnswatch.info/dns/dnslookup?la=en&host=api.pl...