IPv6 Address Helper

Expand, compress, validate, and convert IPv6 interfaces to reverse DNS queries

IPv6 Address Input

Address Input

Accepts fully expanded, compressed notation with "::" gaps, and standard IPv6 networks.

Fully Expanded Form2001:0db8:0000:0000:0000:0000:0000:0001

RFC 5952 Compressed Form2001:db8::1

Reverse DNS Lookup (PTR)1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.b.d.0.1.0.0.2.ip6.arpa

IPv6 Address Scope Properties

Link Local Address (fe80::/10)

Multicast Group Address (ff00::/8)

Loopback Interface Address (::1/128)

Unspecified Address (::/128)

IP Subnet Calculator

Calculate CIDR subnets, mask values & usable hosts

DNS Record Decoder

Parse DNS queries and responses from HEX streams

HTTP Status Code Glossary

Searchable reference for all HTTP status codes

User-Agent Parser

Parse browser UA strings and detect client specs

URL & Query Parameter Inspector

Inspect, dissect, edit, encode, and rebuild URLs & query strings