Internet & Network

What is My IP Address?

Instantly check your public IPv4 and IPv6 address, internet service provider (ISP), location, and connection details.

Browser & System Info

Inspect your browser engine, operating system, hardware concurrency, memory, GPU WebGL renderer, and feature support.

Screen Resolution & Viewport Checker

Check your physical screen resolution, CSS viewport dimensions, device pixel ratio (DPR), color depth, and orientation.

Ping & Latency Test

Measure HTTP network round-trip latency, jitter, and connection stability to global server nodes in real time.

DNS Records Lookup

Query live DNS records (A, AAAA, CNAME, MX, TXT, NS, SOA, CAA) for any domain using DNS-over-HTTPS.

User Agent Parser & Checker

View, parse, and analyze your current User-Agent string or test custom User-Agent strings to inspect device, browser, and OS tokens.

Download & File Transfer Time Calculator

Common Network Port & Protocol Quick Reference

IPv4 Subnet Mask & CIDR Prefix Calculator

IP Geolocation & Network ASN Inspector

DNS Record Generator (SPF, DMARC, DKIM, MX)

Email DNS Records Generator — SPF, DKIM & DMARC Builder

IPv4 CIDR to IP Range & Subnet Host Expander

SSL / TLS X.509 Certificate Decoder & Inspector

IPv6 Subnet Prefix & Expansion Calculator

HTTP Status Codes Directory & Searchable Reference

MAC Address Format Converter & OUI Inspector

Public DNS Resolvers & Propagation Reference

IP Address to Binary, Hex & Decimal Integer Converter

WHOIS & RDAP Raw Record Parser

IPv4 to IPv6 Mapping & 6to4 Converter

Reverse DNS (PTR) Record & in-addr.arpa Zone Generator

DNS SPF Record Generator & Policy Builder

DNS DMARC Record Generator & Policy Builder

DNS DKIM Key Record Generator & String Splitter

DNS CAA Record Generator (SSL/TLS Security Hardening)

DNS TLSA (DANE) Record Generator for SSL/TLS & SMTP

DNS SRV Service Record Generator (RFC 2782)

DNS RFC 2317 Classless in-addr.arpa Reverse DNS Zone Generator

DNS RFC 3403 NAPTR (Naming Authority Pointer) Record Generator

RFC 9460 DNS HTTPS & SVCB Record Generator

RFC 1876 DNS LOC Geographic Location Record Generator

DNS HINFO (Hardware & OS) Record & RFC 8482 Anti-DDoS Generator

DNSSEC NSEC Record & Authenticated Denial of Existence Generator

DNS RPZ (Response Policy Zone) Firewall Rule Generator

DNS NAPTR (Naming Authority Pointer) Record Generator for ENUM & SIP

DNS LOC (Location Information) Geographic Record Generator

DNS SSHFP (SSH Fingerprint) Record Generator (RFC 4255 / RFC 7479)

DNS OPENPGPKEY Record Generator (RFC 7929)

DNS CERT Record Generator (RFC 4398 PKIX & PGP)