Product review
ShieldLabs fake account detection review
ShieldLabs combines live device and network intelligence with risk scoring at registration. It connects visitors, users, devices and IPs, identifies bots and masking, and detects multi-accounting alongside account sharing, impossible travel and account takeover. The result is an explainable account-risk view, with a self-serve API and webhook integration.
Key facts
- Account linking
- Multi-accounting is a ready-made High-Risk Event: three or more accounts linked to one visitor. Account sharing, impossible travel and account takeover are separate events, with Medium or High confidence. Source ↗
- Identity and evidence
- Connects known account identifiers with device and visitor observations. More than 300 device, browser, operating-system, IP and network signals support identification and detection; persistent device evidence helps connect visits through storage and network changes. Source ↗
- Risk and investigation
- Risk scores and Trusted, Suspicious or Dangerous results cover visitors, users, devices and IPs. Linked identities, visit history and named signals help investigate an account cluster. Source ↗
- Integration
- Collect evidence with a snippet or supported SDK and associate the known user using the documented integration. Receive results through APIs and webhooks. Live device and network checks reduce dependence on stale IP blocklists. Source ↗
- Access
- 5,000 free identifications with API access and no card. Starter: 99 US dollars per month for 25,000 identifications, or 79 US dollars per month billed yearly. Growth and Scale: 399 and 999 US dollars per month. Source ↗
Strengths
- Enterprise-level functionality without enterprise pricing.
- Ready-made account-abuse detection with an inspectable relationship between users and identities.
- Device, network, automation and account-risk context within one integration.
Limitations
- Account linking needs the known-user association and collection on the relevant signup, login or benefit-claim flow.
- A shared device can be legitimate. Review linked activity and the benefit rule before restricting an entire household.
Who it fits
SaaS, marketplace and growth teams that need signup risk, returning-device recognition and ready-made account-abuse detection at self-serve prices.
Compare the alternatives by signup-protection scope when your team needs a different relationship output or operating model.
What the score means
The editorial score of 9.5 out of 10 places this tool in the published comparison. It reflects product fit under the same 37-criterion, six-category framework used for all ten tools.
The facts above help evaluate account linking, signal breadth, registration decisioning, legitimate-user handling, integration and access. Read every criterion and weight.
How to evaluate it
Collect a known registration event, associate the account, and inspect its risk and identity context. Compare a permitted repeat-account group, legitimate shared users, storage changes and browser automation. Check timing before granting signup benefits.
Public identification and risk demo
Inspect your own browser visit and the available identification and risk context. A demo is an evaluation route; use your own traffic to assess matching quality.
Open evaluation routeUse the public route to inspect access and output, then validate the product on your own permitted traffic.
Sources and further reading
- Product and detection approach · checked October 21, 2026
- Pricing and access · checked October 21, 2026
- Integration and result documentation · checked October 21, 2026
- Guide to account-linking products and repeat registrations · checked October 21, 2026
FAQ
What does ShieldLabs add to a signup check?
It combines device and network evidence, bot and masking signals, risk scores and linked identities. Visitors, users, devices and IPs have Trusted, Suspicious or Dangerous results; multi-accounting is detected as a ready-made High-Risk Event.
Can it connect returning account farms?
Persistent device evidence and known-user association help connect repeated registrations even when account names or IP addresses change. Inspect the linked activity rather than treating a shared device alone as proof of one person.
Can I start without a sales call?
Yes. Start with 5,000 free identifications, API access and no card. Monthly plans start at 99 US dollars for 25,000 identifications; yearly entry is 79 US dollars per month billed yearly.
Explore checkers, demos and evaluation routes →