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📰 Dev.to · Serhat Doğan

Articles from Dev.to · Serhat Doğan · 3 articles · Updated every 3 hours · View all reads

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The Refund State Machine That Saved Our SMS Reseller from Bleeding Money
Dev.to · Serhat Doğan 6d ago
The Refund State Machine That Saved Our SMS Reseller from Bleeding Money
30% of SMS verification codes never arrive. If you naively refund users without verifying with the upstream provider, you bleed cash on every failure. Here is t
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Building a Privacy-First Phone Verification Architecture: Lessons from 6 Months in Production
Dev.to · Serhat Doğan 6d ago
Building a Privacy-First Phone Verification Architecture: Lessons from 6 Months in Production
Six months of running a production SMS verification reseller taught us hard lessons about provider failover, refund logic, edge caching, and what 'privacy-first
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I Analyzed 10,000 SMS Verifications Across 50 Countries — Here's What the Data Shows
Dev.to · Serhat Doğan 1w ago
I Analyzed 10,000 SMS Verifications Across 50 Countries — Here's What the Data Shows
Every month, millions of people need to verify accounts with a phone number they don't want to share....
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