Helpful Links

Useful sites for network testing, research, and learning.

• Content Filter Testing https://contentfiltertesting.com/Extremely lightweight sites that give public IP address and browser variables, allow for content filter, firewall, load-balancer testing, and provide a destination for easy lab testing. They have static public IPs that do not change.
• ARIN https://www.arin.net/The American Registry for Internet Numbers site that will allow you to research public IPs, ASNs and other related information.
• Infoblox Blog https://www.infoblox.com/blog/An excellent blog containing all manner of good advice for IPv4, IPv6, IPAM, and DNS.