Scan OS information and Traceroute (nmap -A crl.akamai.certum.pl)
Nmap scan report for crl.akamai.certum.pl (184.25.254.90)
Host is up (0.0092s latency).
Other addresses for crl.akamai.certum.pl (not scanned): 2600:1406:bc00:24::adde:a289 2600:1406:bc00:24::adde:a2b9 184.25.254.35
rDNS record for 184.25.254.90: a184-25-254-90.deploy.static.akamaitechnologies.com
Not shown: 998 filtered ports
PORT STATE SERVICE VERSION
80/tcp open http AkamaiGHost (Akamai's HTTP Acceleration/Mirror service)
|_http-server-header: AkamaiGHost
|_http-title: Invalid URL
443/tcp open ssl/https?
Warning: OSScan results may be unreliable because we could not find at least 1 open and 1 closed port
Aggressive OS guesses: Linux 2.6.32 (96%), Linux 3.2 - 4.9 (96%), Linux 2.6.32 - 3.10 (96%), Linux 3.4 - 3.10 (94%), Linux 3.1 (94%), Linux 3.2 (94%), AXIS 210A or 211 Network Camera (Linux 2.6.17) (94%), Synology DiskStation Manager 5.2-5644 (93%), Netgear RAIDiator 4.2.28 (93%), Linux 2.6.32 - 2.6.35 (93%)
No exact OS matches for host (test conditions non-ideal).
Network Distance: 10 hops
TRACEROUTE (using port 443/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 0.64 ms multacom.com (96.45.162.9)
4 0.85 ms ae-8.a03.lsanca07.us.bb.gin.ntt.net (129.250.205.121)
5 ... 6
7 7.41 ms ae-0.a03.snjsca04.us.bb.gin.ntt.net (129.250.2.159)
8 7.38 ms ae-0.akamai-onnet.snjsca04.us.bb.gin.ntt.net (140.174.28.106)
9 ...
10 7.89 ms a184-25-254-90.deploy.static.akamaitechnologies.com (184.25.254.90)
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 105.84 seconds