Digital proof of address

Digital proof of address that boosts conversions.

Phone showing location verification

The problem

Traditional proof of address (PoA) documents are easy to falsify by fraudsters and hard to find for legitimate customers, causing delays and reducing conversion rates.

Our solution

A digital proof of address check that is more accurate than traditional methods – one that creates a full picture of potential fraud by analyzing metadata, geolocation, and customer identity.


KYC, help clients meet regulatory requirements, eligibility checks.

Next-generation fraud detection

Our approach to anti-financial crime is continuous, predictive, and driven by machine learning. We detect and assess financial crime not only at onboarding but throughout the entire lifecycle of a customer.

Having performed millions of KYC onboardings, Fourthline’s anti-financial crime experts have been trained extensively in signaling risk indicators, identifying patterns, and putting insights into action. 

Proprietary algorithms and augmented analytics result in pattern recognition that informs decisioning and risk scoring, to identify more legitimate customers and detect fraudsters during onboarding and throughout the customer lifecycle.  

Boost conversion

No more delays and drop-offs in conversions. Verify your customer’s address in seconds and boost conversion rates.

Maximize fraud detection

While traditional proof-of-address checks rely on documents that can be falsified, our holistic analysis of geolocation and device intelligence catches fraud that others miss.

Seamless UX

Say goodbye to uploading paper documents. Offer your customers a fully digital PoA check that is performed in seconds.

How does it work?

Picture of a mobile device with the Fourthline app opened

Solve your proof of address challenges and partner with Fourthline

Fraud detection accuracy

Fourthline detects fraud at a higher accuracy rate than other providers, so you can be confident that you are onboarding trustworthy clients.

Completion rates

Fourthline has helped its clients achieve an overall conversion rate of 99.7% – with only 0.3% failing at the address verification stage.

AML and GDPR compliance

Our PoA solution is fully compliant with GDPR and AML regulations.

Want to learn more?

Discover how we can help you solve mission-critical identity challenges in a tailored way.