Free tools. No account. No catches.

Is your VPN actually hiding you?

Your DNS might be snitching on you.

Do you have IPv6 connectivity?

A, MX, TXT, CNAME records for any domain.

Which doors are open on that server?

Full geo, ASN, and ISP for any IP.

Is that cert valid? When does it expire?

How fast is your connection to our servers?

CIDR to network range, hosts, broadcast.

Is your IP on any spam lists?

What your browser sends automatically.

Who owns this domain or IP?

Turn an IP back into a hostname.

Trace where that email really came from.

Strong, random, no excuses.