Today we’re thrilled to announce that, as part of our next YinkoShield SDK update, DNS Racer is now available to all our customers. For a security-focused solution like YinkoShield, ensuring reliable network connectivity is a natural extension of our mission: protecting users means guaranteeing both the security and availability of financial services, especially in environments where unstable connections can lock people out of critical banking functions.

The Challenge: Up to 52% of mobile app launches on common African networks suffer DNS timeouts or failures. These glitches often trigger false security alerts, prompting users to abandon transactions or lose trust in their banking apps. In regions where connectivity fluctuates; rural areas, densely populated urban centers, or low-bandwidth networks

This isn’t just an inconvenience. It directly undermines financial inclusion and security.

Why YinkoShield: As experts in detecting and preventing fraud, we understand that security and reliability are inseparable. A secure transaction that never completes is as ineffective as an unprotected one. By addressing DNS instability, YinkoShield now delivers a more resilient security posture: our threat detection logic stays in sync with network optimizations, so you’re never penalized for factors beyond your control.

Our Solution — DNS Racer (In-App): This lightweight, in-app DNS racing engine ships as part of the next YinkoShield SDK update and runs entirely within your mobile app; no external infrastructure required. DNS Racer simultaneously queries:

• Classic DNS

• DNS-over-HTTPS (DoH)

• DNS-over-TLS (DoT)

• Custom resolvers defined by you

It then instantly picks the fastest authenticated response and supports SSL-pinning and DNSSEC validation to block MitM attacks while preserving zero-rating via a dedicated DoH endpoint.

Adaptive & Context-Aware: DNS Racer automatically adapts to network conditions and location. In urban areas with good connectivity, it prioritizes encrypted DNS for maximum privacy. In rural or slow-network areas, it switches to faster local DNS servers and stores more results locally for quicker access

Because it’s embedded directly into the app, DNS Racer works seamlessly on iOS, Android, and even the most resource-constrained, low-end devices, ensuring every user benefits from faster, more reliable, and secure connectivity.

Impact for End Users: With DNS Racer enabled, users on unstable networks experience faster DNS resolution, far fewer session timeouts, and uninterrupted, secure access to banking features. The result is increased transaction success, reduced support overhead, and stronger user trust.

What It Means for Everyday Users: Whether you’re sending money to family, checking your balance, or paying bills, DNS Racer ensures your app connects quickly; even when your network is spotty. You’ll spend less time waiting for pages to load, fewer failed transactions, and more confidence that your banking app will work when you need it most.

What’s Next: Over the next quarter, we’ll publish real-world performance data from our deployments, showcasing improvements in transaction success rates, session abandonment reductions, and overall impact on customer retention.

🔧 Existing YinkoShield customers: update to the latest SDK to enable DNS Racer out-of-the-box.

💡 Interested in building secure, reliable fintech apps for Africa? Reach out to explore how YinkoShield’s holistic approach, combining security and network resilience, can empower your next project.