IPTool

Fast system administrator tools

Your IP address

216.73.216.4

Your connection and device data

IP: —
DNS PTR: —
Provider: —
Geo: —
Timezone: —

Browser: —
OS: —

Screen resolution: —
Viewport: —
Device Pixel Ratio (DPR): —

Popular tools

IP info

IP address: versions, private ranges, geo and WHOIS

Info Ports

Domain

Domain basics: WHOIS contacts, NS records and TTL

Info Spam blacklists

ASN

ASN: autonomous systems, routes and providers

ASN

SLA / Uptime

Uptime calculator: convert availability to downtime and back

SLA / Uptime calculator

IPv4 / IPv6

IPv4 calculator: subnets, CIDR, mask and address ranges · IPv6 calculator: network block, address range and CIDR prefix

IPv4 IPv6

Converters

Color and units converters

Colors Units

Learn more

Check IP addresses, domains and ASNs: geolocation, provider (ISP), ASN/AS‑Name, reverse DNS (PTR), BGP routes and basic WHOIS — all in one place.

Type an IP, domain or ASN into the quick search — we auto‑detect the type and open the right tool. Works with IPv4/IPv6, IDN domains and inputs like AS15169.

IP: GEOIP, ISP/ORG, ASN, PTR, WHOIS (for public addresses).
Domain: DNS records A/AAAA, MX, TXT, NS, SOA, TTL and WHOIS.
ASN: Autonomous system summary with announced IPv4/IPv6 prefixes.
Calculators: IPv4/IPv6 CIDR, subnets, Unix time.
Networking tools: TCP port check, Punycode (IDN).
Security & convenience: password generator, MAC vendor, spam blacklists (DNSBL).

IPTool features a clean UI and fast performance.