9 tools available

Free tools. No account. No catches.

Everything you need to debug, test, and understand your network. Use them as much as you want.

VPN Leak Test

Is your VPN actually hiding you?

Your DNS might be snitching on you.

Which doors are open on that server?

Full geo, ASN, and ISP for any IP in the world.

Is your IP on any spam lists? Let's check.

Strong, random, no excuses.

Who owns this domain or IP?

Turn an IP back into a hostname.

Trace every server an email bounced through.