Hi Vercel team,

I’m experiencing frequent ENOTFOUND DNS errors when fetching from {API EndPoint} during ISR builds.

Error: getaddrinfo ENOTFOUND {API EndPoint} Deployment: Prod / Preview Same as Region: ICN1 (Seoul) Frequency: ~30% of ISR builds fail

Details:

• Happens during cold starts

• More frequent during concurrent ISR builds

• Same code works fine locally

• Already implemented retry logic

  [cause]: [Error: getaddrinfo ENOTFOUND {API EndPoint}] { errno: -3008, code: 'ENOTFOUND', syscall: 'getaddrinfo', hostname: {API EndPoint}

Could you please investigate if there’s a DNS resolver issue in the Seoul region?

Thank you!