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Rapid Insight checks that information against intelligence found in over a dozen sources, including: Alexa, DNS Lookup, IP Geolocation, Google Custom Search, Google Safe Browsing, IID ActiveTrust, Passive DNS, Reverse DNS, Reverse WHOIS via DomainTools, Virus Total and WHOIS via DomainTools.
As Web applications become more complex and increasingly rely on data pulled from numerous domains, the DNS lookup process of resolving a host name to an IP address is often an overlooked source of latency.
Brown gave the example of Network Protector, one of the launch apps for the store, that screens DNS lookup requests for sites known to be sources of malware.
Tests include: Network Status to ensure that you are connected to a network, Internet Access to assess the quality of your Internet connection, DNS Lookup to determine if you can reach Domain Name Servers, Cloud Services to check if you can connect to standard web services and CDN Services to measure your download speed.
The access point does a DNS lookup to find the enterprise Meru WLAN controller.
When users make a request which requires a DNS lookup (in effect, virtually any request that uses the Internet), such programs send a request to the DNS resolver built into their operating system.
Reverse DNS lookup runs DNS queries on the IP addresses of incoming email to determine if the identified host name matches an actual host name for the sender's IP addresses.
Additional filters include real time black/white list lookup, DNS lookup, sender/domain filtering, rules-based message body scanning and subject line filtering.
Spam-identifying capabilities have been enhanced with six spam prevention methods: real-time blacklisting, DNS lookup, anti-relay, antispoofing, cookie blocking, and keyword filtering.
Other features include the ability to send links by email, merge duplicate URLs, and to launch ping, traceroute, or DNS lookup commands on a website's domain name from a right-click popup menu.
Users of this free DNS lookup service are invited to discuss any questions and recommendations they may have.