Networking tools provided as a public service by hq42.net

Read the HQ42 FAQ, it will help you to quickly become familiar with these tools.

All of these tools have restrictions governing the input they will accept.
Two types of input are acceptable "dotted-quads" that is standard IP addresses like 38.103.63.57
and also simple host names like www.yahoo.com, no http:// or other protocol prefixes are allowed for security reasons.
You may not specify a port for any of these tests, except the "NON Standard Ports" tool. The tests default to the standard port for the service.

Home Page
Down Time
HQ42 FAQ
Port Scanner
WhoIs
Advanced WhoIs
DNS Check
beta
LookUp
LookUp MX
Reverse LookUp
Remote Ping
Advanced Ping
Trace Route
Message a remote host
Test a POP3 server
Test a web server
Test a DNS server
Test an SMTP server
Test a telnet server
MTR
Test an FTP server
Comment to SysOp
Colors
Test an Email Address
Subnet Calculator
Check Block Lists
DiG
Finger
Test a SSH server
NON Standard Ports
beta
Test SPF
Your IP
38.103.63.57
Last Refresh
07 Jan 09
7:01:16 EST
25 now on
74.8.161.100
68.225.28.167
66.134.73.4
66.61.43.218
71.192.14.166
209.12.17.132
160.79.38.70
202.173.184.76
68.178.116.51
208.127.101.55
120.136.0.8
118.107.192.10
24.234.184.232
80.24.178.187
96.31.6.42
85.115.52.180
38.103.63.57
85.200.255.58
62.236.216.170
202.66.26.209
80.248.12.132
195.168.79.82
64.71.190.133
62.245.155.198
87.203.178.51
First time visitors should read the FAQ.    
Last 25 Referrers
www.google.nl
www.google.co.uk
www.google.co.uk
www.google.ca
www.google.nl
www.google.ca
www.google.de
www.google.com
www.google.com
www.google.de
home.planet.nl
www.google.co.uk
www.google.com
www.google.com
www.google.gr
www.google.co.uk
www.google.com
www.google.com
www.stumbleupon.com
www.google.gr
www.stumbleupon.com
www.stumbleupon.com
www.stumbleupon.com
www.diffbot.com
www.google.com
January 2009
123
45678910
11121314151617
18192021222324
25262728293031