Networking Guides
Learn the fundamentals of IP addressing, DNS, and geolocation.
DNS
DNS Record Types Explained
A practical overview of common DNS record types including A, AAAA, MX, NS, TXT, and CNAME.
Fundamentals
Dynamic vs Static IP Addresses
Compare dynamic and static public IP addresses and when each is used.
Geolocation
Geolocation Accuracy Limitations
Understand why IP geolocation is approximate and should not be treated as exact location data.
Geolocation
Hosting, Cloud, and IP Ownership
Why IP geolocation may show a hosting provider or cloud region instead of an end user location.
Geolocation
How IP Geolocation Works
Understand how IP geolocation databases estimate location from an IP address and why accuracy varies.
Networking
How Subnet Masks Work
Learn how subnet masks divide IPv4 networks into usable host ranges.
Fundamentals
How Websites Detect Your IP
Learn how web servers determine a visitor public IP address and why headers can be misleading.
Privacy
How a VPN Affects Your IP
Learn why a VPN changes the public IP address websites see and what geolocation may show instead.
Privacy
IP Address Privacy Basics
Practical privacy guidance about public IP addresses, logging, and user expectations online.
Fundamentals
IPv4 vs IPv6
Compare IPv4 and IPv6 addressing, adoption, and practical differences for developers and network users.
Fundamentals
IPv6 Adoption Basics
Why IPv6 adoption continues to grow and what it means for IP lookup tools.
Networking
NAT Explained
Learn how Network Address Translation lets many devices share one public IP address.
Privacy
Proxy vs VPN vs Tor
Compare proxies, VPNs, and Tor networks and how each affects your visible IP address.
Fundamentals
Public vs Private IP Addresses
Understand the difference between public and private IP addresses on home and office networks.
Guides
Troubleshooting IP and DNS Issues
Simple checks for common IP and DNS problems at home or on a small office network.
Networking
Understanding IP Routing Basics
A beginner-friendly overview of how IP packets are routed across autonomous systems to reach destinations.
Networking
What Is CIDR?
Understand Classless Inter-Domain Routing notation and why networks use prefixes like /24.
DNS
What Is DNS?
Learn how the Domain Name System translates human-readable domain names into IP addresses.
Fundamentals
What Is My Public IP Used For?
Common reasons websites and services use your public IP address during normal internet use.
DNS
What Is Reverse DNS?
Learn how reverse DNS maps IP addresses back to hostnames using PTR records.
Networking
What Is an ASN?
Learn what Autonomous System Numbers are and how they identify networks on the internet.
Fundamentals
What Is an IP Address?
Learn what an IP address is, why it matters, and how devices use it to communicate on the internet.
Fundamentals
What Is an ISP?
Understand Internet Service Providers and how they assign public IP addresses to customers.
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