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Blog

Engineering writing and founder posts. Most recent first.

  • May 13, 2026 · , 5 min read

    Engineering

    The 7 seconds we missed

    A follow-up. Five days after we published 'From 17 minutes to 2 minutes,' a real user from India waited 9.9 seconds for a single AWS badge to verify. The blog claimed 1-2 seconds. Here's what we missed, and the 4-line fix that runs at zero cost.

  • May 8, 2026 · , 14 min read

    Engineering

    From 17 minutes to 2 minutes: how we made bulk credential imports 6x faster

    Seven backend patterns that took our worst-case onboarding from 17 minutes down to 2 minutes 7 seconds. Parallel verification, atomic INSERT ON CONFLICT, statement-level triggers, NDJSON streaming, native vs OTA, and the observability layer we built to prove it worked.

  • May 5, 2026 · , 6 min read

    From the founder

    The Day CertScore's Hiring Loop Closed for the First Time

    An application security engineer came in cold and verified fourteen credentials, including OffSec OSCP and AWS Solutions Architect Professional. Every certification was checked with its issuer while we talked.

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