Powerful Network Tools
Everything you need to understand and master networking fundamentals
My IP & Info
Check your public IP, location, ISP, and browser details instantly.
DNS Lookup
Query A, AAAA, MX, NS, TXT, CNAME, and other DNS records.
Reverse DNS
Lookup hostnames from IP addresses using PTR records.
HTTP Headers
Inspect HTTP response headers and status codes from any URL.
URL Analyzer
Break down URLs into components: protocol, domain, path, query, fragment.
Subnet Calculator
Calculate subnets, CIDR notation, hosts, and network ranges.
MAC Lookup
Identify network device manufacturers from MAC addresses (OUI).
Text Utilities
Base64, URL encode/decode, JSON formatter, and more tools.
Networking Basics
What is an IP Address?
An IP (Internet Protocol) address is a unique identifier assigned to devices on a network. IPv4 addresses consist of four numbers (0-255) separated by dots, like 192.168.1.1. It's essential for network communication.
- Public IP: Visible to the internet
- Private IP: Used within local networks (192.168.x.x, 10.x.x.x)
- IPv6: The newer 128-bit address format
What is Subnetting?
Subnetting divides a large network into smaller subnetworks. It uses CIDR notation (e.g., /24) to indicate how many bits are used for the network portion of an IP address.
/24= 256 addresses (255 usable hosts)/25= 128 addresses (127 usable hosts)/16= 65,536 addresses
What is a MAC Address?
A MAC (Media Access Control) address is a physical address used on local networks. It identifies devices at the data link layer. Format: 00:1A:2B:3C:4D:5E
- First 3 pairs (OUI): Manufacturer identifier
- Last 3 pairs: Device-specific number
- Used in DHCP and ARP protocols