Scan OS information and Traceroute (nmap -A api-0.core.keybaseapi.com)
Nmap scan report for api-0.core.keybaseapi.com (52.72.221.214)
Host is up (0.073s latency).
Other addresses for api-0.core.keybaseapi.com (not scanned): 54.144.90.88
rDNS record for 52.72.221.214: ec2-52-72-221-214.compute-1.amazonaws.com
Not shown: 997 filtered ports
PORT STATE SERVICE VERSION
80/tcp closed http
443/tcp open ssl/http nginx
|_http-title: Keybase
| ssl-cert: Subject: commonName=api-0.core.keybaseapi.com/organizationName=Keybase, Inc./stateOrProvinceName=NY/countryName=US
| Subject Alternative Name: DNS:api-0.core.keybaseapi.com, DNS:api-1.core.keybaseapi.com, DNS:*.prod.kb-aws.net, DNS:api.keybase.io
| Not valid before: 2022-03-25T20:08:27
|_Not valid after: 2026-03-24T20:08:27
|_ssl-date: TLS randomness does not represent time
| tls-alpn:
|_ http/1.1
444/tcp closed snpp
Aggressive OS guesses: Vodavi XTS-IP PBX (92%), Linux 2.6.32 (91%), Linux 3.2 - 4.9 (91%), Linux 2.6.32 - 3.10 (91%), Linux 3.1 (87%), Linux 3.2 (87%), Linux 2.6.32 - 2.6.35 (87%), Linux 2.6.32 - 3.5 (87%), Android 5.0 - 7.0 (Linux 3.4 - 3.10) (87%), Linux 2.6.32 - 3.13 (87%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 17 hops
TRACEROUTE (using port 80/tcp)
HOP RTT ADDRESS
1 0.20 ms 208.76.251.177
2 0.53 ms gw.mcom-colocationamerica.com (208.64.231.81)
3 0.74 ms 1.162.45.96-dedicated.multacom.com (96.45.162.1)
4 0.97 ms be5361.ccr42.lax01.atlas.cogentco.com (38.99.219.57)
5 12.27 ms be2932.ccr32.phx01.atlas.cogentco.com (154.54.45.161)
6 20.90 ms be3872.ccr22.elp02.atlas.cogentco.com (154.54.26.54)
7 36.91 ms be3851.ccr42.iah01.atlas.cogentco.com (154.54.2.5)
8 38.39 ms be2418.rcr51.b023723-0.iah01.atlas.cogentco.com (154.54.6.78)
9 37.94 ms 38.104.61.42
10 40.07 ms 52.93.254.215
11 37.85 ms 52.93.64.159
12 ... 16
17 72.61 ms ec2-52-72-221-214.compute-1.amazonaws.com (52.72.221.214)
OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ .
Nmap done: 1 IP address (1 host up) scanned in 295.75 seconds