HEATKEYS

IP address lookup, location, proxy detection, email tracing, IP hiding tips, blacklist check, speed test, and forums. Find, get, and show my IP address.

Test if your IP or DOMAIN is blacklisted in a spamdatabse.

DNS-based block list information/database. Resource to find out information on DNS block lists and check IP

Free multiple DNSBL/RBL lookup and FCrDNS check tool. Test the IP (IPv4 or IPv6) of your mailserver on more than 200 blacklists and whitelists.

Find out your email reputation score from Return Path

Spam blacklist lookup. Check your IP address and domain name against spam list database. RBL check.

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UltraTools is a complete set of free DNS and domain tools, which test the health of your domain name servers, websites and online hosting environment.

Check if your email server is on DNS blacklist. Get blacklist monitor email alerts if your IP or domain is blacklisted!

Beware of cheap imitations! SpamCop has been protecting the internet community since 1998. Automatically file spam reports with the network administrators who can stop unsolicited email at the source. Subscribe, and filter your email before it rea...