https://nextjs.org/docs/pages/api-reference/config/next-config-js/poweredByHeader
next.config.js Options: poweredByHeader | Next.js
Apr 15, 2025 - Next.js will add the `x-powered-by` header by default. Learn to opt-out of it here.
next config jsoptions
https://nextjs.org/docs/app/api-reference/config/next-config-js/poweredByHeader
next.config.js: poweredByHeader | Next.js
Mar 25, 2026 - Next.js will add the `x-powered-by` header by default. Learn to opt-out of it here.
next config jspoweredbyheader