IPTHUNDER LOCAL CORE

YOUR CONNECTION / NO TRACKING

SEE WHAT
REACHES US.

A plain read of the address your browser sends to this server. We do not run ads or keep a lookup history.

01THE ADDRESS YOUR CONNECTION PRESENTS
LIVE OBSERVATION

EXTERNAL / OBSERVED IP ADDRESS

LOADING…
PRIVATE / LAN ADDRESSNOT EXPOSED TO WEBSITES

A normal browser request does not reveal your private LAN address.

ADDRESS CLASS—
TRANSPORT—
DATA RETENTIONNONE
SERVER CLOCK—

Your request is inspected in memory and not written to a lookup log.

NO COOKIESNO THIRD-PARTY JSSELF-HOST READYFAST PATHNO COOKIES

02 / SUBNET CALCULATOR

CHECK THE RANGE.
GET THE DETAILS.

Enter an IPv4 or IPv6 CIDR to see the boundaries you need for a firewall rule, VLAN, route, or a quick check during a change window.

Enter IPv4 or IPv6 CIDR notation, for example 192.168.10.42/24 or 2001:db8::/64.

NETWORK RANGE—Awaiting target
SUBNET MASK
—
WILDCARD
—
FIRST HOST
—
LAST HOST
—
USABLE HOSTS
—
SPACE
—

03 / PRIVATE BETA

HELP US BUILD
WHAT'S NEXT.

Join the beta for saved CIDRs, overlap checks, change reports, and a future API key. The public tools will stay public.

  • Email verification required
  • Marketing is optional
  • No tracking scripts

We will send a verification link. Marketing consent is never required for beta access.

04 / PRIVACY

YOUR REQUEST.
NOT A PROFILE.

IPTHUNDER shows the connection details your server already receives. It does not make hidden calls to geo, ASN, abuse, or VPN services. If you want those checks, you can add them to your own deployment.