Check a Domain's Reputation

There are a number of companies that provide a means of checking a domain's reputation. E.g., perhaps you may wish to determine if a particular domain name is associated with the transmission of spam or want to know whether it is safe to visit a particular website. Often antispam and antivirus vendors will allow you to lookup an IP address or fully qualified domain name (FQDN) , e.g. somesite.example.com to make that determination.

Site	Note
BarracudaCentral IP / Domain Lookups	The Barracuda Reputation System is a real-time database of IP addresses that have a "poor" reputation for sending valid emails. A lookup will also check the Barracuda Networks WebFilter content database.
Norton™ Safe Web	Provided by Symantec.
ReputationAuthority	Enter IP address or domain name. Provided by WatchGuard. Appears to give a "neutral" rating of 50% good and 50% bad for domains for which it has no entries regarding problems with a domain, but for which it has no further information.
SenderBase	You can enter an IP address, domain name or network owner. Service provided by Cisco.
TrustedSource	You can enter an IP address, domain name or URL to check reputation/traffic patterns. Service provided by McAfee.

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Created: Sunday, October 6, 2013