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Client Hints: DPR, Width, Viewport-Width

72.6

DOM

DPR, Width, and Viewport-Width hints enable proactive content negotiation between client and server, enabling automated delivery of optimized assets - e.g. auto-negotiating image DPR resolution.

Further reading:

  1. Can I use page for: Client Hints: DPR, Width, Viewport-Width
  2. Automating resource selection with Client Hints
  3. Mozilla Bug 935216 - Implement Client-Hints HTTP header
  4. WebKit Bug 145380 - Add Content-DPR header support
  5. Microsoft Edge feature request on UserVoice