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"We've built 1.1.1.1 to be the Internet's fastest DNS directory. Don't take our word for it. The independent DNS monitor DNSPerf ranks 1.1.1.1 the fastest DNS service in the world."

swiss army knife internet tool in the searchbox above you can search for: RBL checks multible RBL:s if a specific is listed (81.62.124.116) DNS checks detailed dns information for a hostname () or a domain () IP-number checks ip number information such as dns reverse and forwards (81.62.124.116) C-net checks an entire c-network (81.62.124) whois lookup checks whois information for a domain () route checks a specific routed prefix () AS numbers checks information on an AS-number (AS ()) BGP announcements checks prefixes origined from a specific AS-number (AS) AS macros checks who belongs to an AS-macro (example: as-ams-ix-peers) RFC documents Request For Comments (rfc2822) add engine to browser

OpenDNS is the leading provider of Internet security and DNS services Industry leading malware and botnet protection Award winning Web filtering

Find out if you have been violated and infected with DNS Changer. No software will be downloaded to perform the check.

"Whonix is an operating system focused on anonymity, privacy and security. It's based on the Tor anonymity network[1], Debian GNU/Linux[2] and security by isolation. DNS leaks are impossible, and not even malware with root privileges can find out the user's real IP."

A DMARC analyzer is intended to give email domain owners the ability to protect their domain from unauthorized use, known as email spoofing. DMARC analyzer allows a domain owner to publish a policy in their DNS records that specifies which mechanisms are used to authenticate email messages sent from their domain, and what to do if authentication fails. The DMARC tool builds on top of 2 other email authentication protocols: SPF and DKIM.