Screen bot sign-ups at registration
New signup → 3.120.x.x · type: hosting
datacentre origin → challenge with verification before activating
Stop fake sign-ups and risky logins at the door — with network, anonymiser, and impossible-travel signals.
The cheapest fraud to stop is the account that never gets created. One IP lookup tells you whether a sign-up or login comes from a datacentre rather than a home ISP, whether it's behind a VPN or Tor, and whether a login implies impossible travel — so you can add friction exactly where it's needed.
The teams that lean on this most, in rough order of how often we see it.
Every one ships in the standard response — no add-ons, no tiers.
connection (ASN / org / type) Flag sign-ups and logins from datacentre networks security (isVpn / isTor) Spot anonymised registration and login attempts country / region / city Baseline a user's usual location latitude / longitude Impossible-travel checks between logins The same signals, applied to the account abuse each team faces.
New signup → 3.120.x.x · type: hosting
datacentre origin → challenge with verification before activating
Burst of signups → same hosting ASN
shared datacentre network → rate-limit and challenge
New account → 45.83.x.x · isVpn: true
VPN + datacentre origin → require stronger verification
Login → country ≠ usual, 900km in 20 min
impossible travel → step-up MFA before granting access
Portal login → foreign hosting ASN
unexpected origin → additional identity check
Most bulk and bot registration comes from hosting and datacentre networks, not residential ISPs. Flagging that origin — plus VPN and Tor signals — at the sign-up step lets you challenge the suspicious minority with extra verification while letting genuine users through untouched.
It compares the location of consecutive logins for one account. If two sessions are too far apart to be physically possible in the elapsed time, that's a strong account-takeover signal. Use it to trigger step-up MFA rather than to hard-block, since legitimate VPN use can also cause jumps.
It shouldn't, if you use the flags as risk signals rather than automatic blocks. Many real users browse via VPN. The right pattern is to raise friction — an extra verification step — for higher-risk sign-ins, and let honest users clear it quickly.
Free tier: 2,000 lookups/day, no card. Paid plans from $2.50/month. One call per sign-in, under 50ms median response.