Networking
Subnet, IP, DNS, and port reference tools
Subnet Calculator
Calculate CIDR, subnet mask, host range, and network details.
Open Tool →IP Address Converter
Convert IP addresses between decimal, binary, and hex formats.
Open Tool →IPv4 / IPv6 Validator
Validate IPv4 and IPv6 address formats.
Open Tool →MAC Address Generator
Generate random MAC addresses with format options.
Open Tool →MAC Address Vendor Lookup
Look up manufacturer from MAC address OUI prefix.
Open Tool →Port Number Reference
Reference guide for well-known TCP/UDP port numbers.
Open Tool →TCP / UDP Protocol Reference
Reference guide for common TCP and UDP protocols.
Open Tool →DNS Record Type Reference
Reference guide for DNS record types and their purposes.
Open Tool →HTTP Method Reference
Reference for HTTP methods with descriptions and use cases.
Open Tool →HTTP Status Code Quick Reference
Quick reference for all HTTP status codes by category.
Open Tool →SSL/TLS Version Reference
Reference for SSL/TLS protocol versions and security status.
Open Tool →Network Bandwidth Calculator
Calculate transfer time from file size and bandwidth.
Open Tool →Download Time Calculator
Estimate download time for a file at a given speed.
Open Tool →Latency / Ping Estimator
Estimate network latency based on distance between locations.
Open Tool →MTU Size Reference
Reference for Maximum Transmission Unit sizes by network type.
Open Tool →