Detect risky users
under any masking
Identify visitors and users, find risky users under any masking, detect bots and AI traffic, stop multi-accounting, account sharing and takeovers, and score traffic quality.
Five-minute integration with API and webhooks
User
User HIDe3b0…b924
RiskDANGEROUS
Linked devices2
Linked public IPs4
High-Risk Event
Multi-accountingHIGH CONFIDENCE
Latest identification
Device IDd290…0851
VPN+30
Anti-detect Browser+60
Risk Score90DANGEROUS
Detect risky users. Stop abuse of your product.
One integration gives you your users, devices, visitors and IPs with their risk, the four High-Risk Events, every risk signal and your traffic quality.
High-Risk Events
Multi-accounting, Account sharing, Impossible travel and Account takeover, detected on your users out of the box.
Multi-accountingAccount sharingImpossible travelAccount takeover
Users, devices, visitors and IPs
Link users to their devices, visitors and IP addresses. Review the current risk category of a user, device, visitor or public IP. The Device ID holds through cleared cookies, incognito mode and IP changes.
User HIDDevice IDVisitor IDPublic IPLocal IP
Risk Signals
Catch the masking and automation behind risky users, well beyond IP blocklists: VPNs, proxies, Tor, anti-detect browsers, bots and AI traffic.
VPNProxyTorAnti-detectBots+ more
Risk Scoring
Every identification gets a Risk Score from 0 to 100 with each risk signal named and weighted. Current user, visitor, device and IP risk summarizes the associated identification history.
0-100TrustedSuspiciousDangerous
Traffic Analytics
Score your traffic quality by channel, referrer and UTM campaign.
ChannelsReferrersUTMTraffic quality
Current analytics dashboard Overview, rendered with synthetic example data.
Start by use case
Choose the evidence and response for your use case, then follow a complete runnable tutorial.
View all use cases
Protect your users
Account Takeover
Detect account takeover on the user. Step up before a sensitive action.
Credential Stuffing
Tell a spray of scripted logins apart from your real returning users.
Login and 2FA
Skip friction for known devices, step up only when a login looks risky.
Grow your revenue
New Account Fraud
Catch one device or local IP opening many fresh accounts at signup.
Promo Abuse
Stop multi-accounting from draining coupons and signup bonuses.
Account Sharing
Detect one account used from several distinct devices.
Paywall Enforcement
Recognize the same device through cleared cookies and incognito mode.
Regional Pricing
Catch VPNs and proxies used to reach a cheaper region’s price.
Returning Visitor
Recognize a trusted device on return and spare it repeated checks.
Protect your platform
Ban Enforcement
Keep a banned user’s device out, even when they come back with a fresh account.
Chargeback Dispute
Attach the account’s device and identification evidence to a disputed order.
Affiliate Fraud
Rank affiliate partners by the risky accounts and self-referred traffic they bring.
Traffic Quality
Grade each channel by the users and devices it brings and its traffic quality.
Checkout
Add friction at payment only when the buyer’s account or identification looks risky.
Built for easy integration
Identify visitors in your browser. Read risk results through the Server API or receive signed webhooks. Connect them to signup, login and checkout.
- Identify users and devices with 99.9% identification accuracy
- Works with React, Vue, Svelte, Angular, and plain JS
- One ES module from cdn.shieldlabs.ai, loaded with a dynamic import
- Read every identification of one user, device, visitor or IP
- Authenticate with the Private API Key from Integration > API keys in the analytics dashboard
- Retrieve a stored identification by Identification ID
- Signed results delivered asynchronously to your backend
- Verify X-Shield-Signature on the raw body
- Bounded retries; deduplicate deliveries by event_id
Keep going
Quickstart
Create your account, get your API key and identify your first visitor.
Troubleshooting
No webhook, no risk signals, or a Risk Score you did not expect? Start here.
Changelog
What shipped recently across the snippet, the Risk Score and the analytics dashboard.