Device intelligence, explained plainly.
Guides on how device fingerprinting works, what it can and cannot tell you, and how to turn it into fair decisions against bots, multi-accounting and fraud.
All guides
How to detect VPN, proxy and Tor traffic, and what to do about it.
A practical how-to for VPN detection, proxy detection and Tor detection: what an IP intelligence API reports, how to weigh it, and when not to block.
Read the how-to
Mobile app fraud: emulators, clones and tampering, and what you can detect.
Mobile app fraud prevention with native SDKs: detect emulators, rooted and jailbroken devices, cloned apps and tampering, with server-verified attestation.
Read the playbook
Build or buy device identification? An honest guide for engineering teams.
Build vs buy device fingerprinting: what building really takes, what buying gives, and the cases where building is the right call, for engineering teams.
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How much does device fingerprinting cost?
Device fingerprinting pricing explained: the common pricing models, what a cost per identification looks like, and how Fingerly’s pay as you go pricing works.
Read the buyer’s guide
Device fingerprinting vs CAPTCHA: which one stops bots?
Device fingerprinting vs CAPTCHA compared: what each one proves, where CAPTCHA adds friction, and how to use device signals to challenge scripts, not people.
Read the comparison
Device fingerprinting vs IP address blocking.
Device fingerprinting vs IP address blocking: why IP bans block the wrong people and miss the right ones, and how to use IP data as context, not a verdict.
Read the comparison
How to detect multiple accounts from one person.
How to detect multiple accounts from one person: link duplicate accounts and sockpuppets by device, review the clusters, and act without punishing households.
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How to stop free trial abuse without hurting conversions.
How to stop free trial abuse and freemium abuse: limit trials per device instead of per email, pick the right moment to check, and keep real customers moving.
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Referral fraud and reward abuse prevention.
Referral fraud and reward abuse prevention: how self-referral rings work, which checks catch them, and how to pay rewards only for real, distinct new customers.
Read the how-toMake the next connection a trusted one.
Start with the signals, keep your own decisions, and pay as you go, only for what you identify. No credit card needed.