Connected · IPv4 + IPv6 detected

Network diagnostics, built like an API.

Nine fast, accurate, ad-light tools for IP lookup, DNS, ports, certificates, and subnetting. Browser-safe APIs, static export, no signup.

GET/v1/ipGET/v1/dns/{type}GET/v1/whoisGET/v1/tls

9tools, no signup

100%static export

0tracking SDKs

Your public address

Probing

IPv4

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IPv6

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City

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Region

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ASN

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ISP

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Country

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Proxy

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All tools

primary

What is my IP

Your public IPv4, IPv6, browser, OS, and user agent — instantly.

GET/v1/ipOpen →

test

Ping test

Browser HTTPS round-trip latency, 5 samples, with TLS and HTTP overhead.

POST/v1/pingOpen →

lookup

IP geolocation

City, country, ISP, ASN, and coordinates. IPv4 and IPv6 supported.

GET/v1/geo/{ip}Open →

lookup

DNS lookup

Query A, AAAA, MX, TXT, CNAME, NS records over DoH.

GET/v1/dns/{type}Open →

lookup

WHOIS lookup

Registrar, creation/expiry, nameservers via authoritative RDAP.

GET/v1/whoisOpen →

test

Port checker

Browser fetch reachability for a host:port. HTTP and HTTPS only.

POST/v1/portOpen →

calculator

Subnet calculator

CIDR mask, host count, broadcast, ranges. IPv4 CIDR math.

GET/v1/cidrOpen →

test

SSL checker

Issuer, expiry, SAN list, and certificate transparency results.

GET/v1/tlsOpen →

calculator

MAC lookup

Vendor name from OUI prefix. IEEE-registered manufacturers.

GET/v1/ouiOpen →

Popular by use case

IP geolocation pages tuned for fraud, ad targeting, content localization, CDN routing, and VPN detection workflows.

use case

VPN and proxy detection

Treat hosting and anonymizer flags as friction triggers rather than auto-blocks; 1 in 4 normal users use a VPN at least monthly.

GET/v1/geo/{ip}Open →

use case

Ecommerce fraud prevention

IP-billing country mismatch raises chargeback risk by 3-5x in published industry studies.

GET/v1/geo/{ip}Open →

use case

Content and currency localization

Default-locale match improves conversion 5-15% on cross-border ecommerce; serving wrong currency is a top friction point.

GET/v1/geo/{ip}Open →

use case

Ad targeting and bid filtering

IAB/MRC IVT guidelines treat hosting/datacenter IPs as a strong invalid-traffic signal in display.

GET/v1/geo/{ip}Open →

use case

CDN edge routing and origin selection

Misrouted POPs add 50-200ms RTT for far-away visitors; data-residency mistakes have legal cost.

GET/v1/geo/{ip}Open →

Sourced from the registries themselves

We pull directly from RIPE, IANA, IEEE, and ICANN — the same authorities your network engineering team trusts.

⚠ browser limitation

Ping uses HTTP(S) round-trip time, not raw ICMP. Numbers are within ~10 ms of ping on most networks but can't replace mtr for path debugging.

RIPE NCC

Authoritative ASN + IP allocation database for EMEA region.

IANA

Root zone, TLD registry, port assignments, AS number ranges.

IEEE OUI

Organizationally Unique Identifier registry for MAC vendors.

ICANN RDAP

Authoritative gTLD WHOIS via Registration Data Access Protocol.

ipapi / GeoLite2

IP-to-city + accuracy radius. Updated weekly.

crt.sh / certspotter

Certificate transparency search for issued certs.