DNS
How Reverse DNS Lookup Works: PTR Records Explained
Quick answer: Reverse DNS uses a PTR record to map an IP address to a hostname, if one has been published.Forward vs…
DNS
DNS A vs AAAA vs CNAME: What Is the Difference?
Quick answer: A records map a hostname to an IPv4 address, AAAA records map it to IPv6, and CNAME records create an…
Network
What Is CGNAT and How Can You Tell If You Are Behind It?
Quick answer: CGNAT means your ISP shares a public IPv4 address among multiple subscribers. Your router can therefore have a different WAN…
IP Guides
Why Does My IP Address Change? Dynamic IPs Explained
Quick answer: Your public IP can change when your ISP reassigns a dynamic address, your connection reconnects, you switch networks, or a…
IP Guides
How to Find Your Public IP Address on Any Device
Quick answer: The fastest way to find the public IP address your connection presents to the internet is to open WhatIP IP…
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