Mark Ku's Blog

The Problem

When loading images via the next/image component, they are all resized by the Next.js server. The image path is rendered as:

<img src="https://www.markkulab.com/_next/image?url=https://content.markkulab.com//Images/en-US/Lobby/same_day_rdy_next_01.png&w=1920&q=75"/>

System Impact

  • Performance overhead on the Next.js server
  • Oversized Docker images

I looked at NZXT's website; they also use Next.js and likely use next/image to load images. Because they use Imgix's image resizing service, they don't encounter this problem.

Checking the Next.js official documentation, I found that the next/image loader can be customized.

images: {
    loader: 'imgix',
    path: 'https://example.com/myaccount/',
  },
}

Possible Solutions

  • Enable Cloudflare Image Optimization link
  • Purchase an Imgix plan ($300 USD / month)
  • Self-host an image loader, e.g., Uploadcare or...
  • Stop using next/image and write a custom image component that uses a resizing service like Cloudflare => Not recommended, as it's too much hassle.

Author

Mark Ku

擁有 10+ 年經驗的資深軟體工程師,現為 AI 應用 Builder,專注於大型平台架構與簡化複雜系統設計,從電商系統到訂閱與收費平台,結合 AI Agent、AI 整合與自動化開發,打造高效率且可持續演進的產品技術基礎。Read More

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Mark Ku · This article is licensed under CC BY 4.0. Credit the author and link back to the original when reusing it.

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