free dns test tools

using nslookup interactively
a short lesson on using the windows nslookup.exe dns query tool

These are useful free dns testing tools located on other web sites. Please note that edgedirector.com takes no responsibility for external sites.

dns test report at intodns.com
quick and easy analysis of the dns data for any specified dns zone with recommended corrective actions.

dns propogation report at whatsmydns.net
quick and easy analysis of the dns data for any specified dns zone with recommended corrective actions.

dns speed test
find out how fast your dns queries are answered

mail server blacklist report at mxtoolbox.com
find out if your mail server is blacklisted by any of the major spam rbldns lists

level3.net looking glass page
traceroute, ping, whois, bgp routing tables from all level 3 network pops

dns tools at ping.eu
ping, whois, traceroute, port check, mail relay check, dns lookup, proxy check, reverse lookup, bandwidth meter and a cute penguin

route-server.ip.att.net
AT&T public route server accessed via telnet protocol