Client Hints: DPR, Width, Viewport-Width
- OTHERDPR, 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.
Chrome
- ❌ 4 - 45: Not supported
- ✅ 46 - 134: Supported
- ✅ 135: Supported
- ✅ 136 - 138: Supported
Edge
- ❌ 12 - 18: Not supported
- ✅ 79 - 134: Supported
- ✅ 135: Supported
Safari
- ❌ 3.1 - 18.3: Not supported
- ❌ 18.4: Not supported
- ❌ 18.5 - TP: Not supported
Firefox
- ❌ 2 - 136: Not supported
- ❌ 137: Not supported
- ❌ 138 - 140: Not supported
Opera
- ❌ 9 - 32: Not supported
- ✅ 33 - 116: Supported
- ✅ 117: Supported
IE
- ❌ 5.5 - 10: Not supported
- ❌ 11: Not supported
Chrome for Android
- ✅ 135: Supported
Safari on iOS
- ❌ 3.2 - 18.3: Not supported
- ❌ 18.4: Not supported
- ❌ 18.5: Not supported
Samsung Internet
- ❌ 4: Not supported
- ✅ 5 - 26: Supported
- ✅ 27: Supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10 - 12.1: Not supported
- ✅ 80: Supported
UC Browser for Android
- ✅ 15.5: Supported
Android Browser
- ❌ 2.1 - 4.4.4: Not supported
- ✅ 135: Supported
Firefox for Android
- ❌ 137: Not supported
QQ Browser
- ✅ 14.9: Supported
Baidu Browser
- ✅ 13.52: Supported
KaiOS Browser
- ❌ 2.5: Not supported
- ❌ 3: Not supported