SPDY protocol
- UNOFFNetworking protocol for low-latency transport of content over the web. Superseded by HTTP version 2.
Chrome
- ✅ 4 - 50: Supported
- ❌ 51 - 135: Not supported
- ❌ 136: Not supported
- ❌ 137 - 139: Not supported
Edge
- ❌ 12 - 135: Not supported
- ❌ 136: Not supported
Safari
- ❌ 3.1 - 7.1: Not supported
- ✅ 8 - 12: Supported
- ✅ 12.1 - 18.4: Supported
- ✅ 18.5: Supported
- ✅ TP: Supported
Firefox
- ❌ 2 - 12: Not supported
- ✅ 13 - 50: Supported
- ❌ 51 - 137: Not supported
- ❌ 138: Not supported
- ❌ 139 - 141: Not supported
Opera
- ❌ 9 - 12: Not supported
- ✅ 12.1 - 39: Supported
- ❌ 40 - 41: Not supported
- ✅ 42: Supported
- ❌ 43: Not supported
- ✅ 44: Supported
- ❌ 45 - 116: Not supported
- ❌ 117: Not supported
IE
- ❌ 5.5 - 10: Not supported
- ✅ 11: Supported
Chrome for Android
- ❌ 136: Not supported
Safari on iOS
- ❌ 3.2 - 7.1: Not supported
- ✅ 8 - 12.1: Supported
- ✅ 12.2 - 18.4: Supported
- ✅ 18.5: Supported
Samsung Internet
- ✅ 4: Supported
- ❌ 5 - 26: Not supported
- ❌ 27: Not supported
Opera Mini
- ❌ all: Not supported
Opera Mobile
- ❌ 10 - 12: Not supported
- ✅ 12.1: Supported
- ❌ 80: Not supported
UC Browser for Android
- ❌ 15.5: Not supported
Android Browser
- ❌ 2.1 - 2.3: Not supported
- ✅ 3 - 4.4.4: Supported
- ❌ 136: Not supported
Firefox for Android
- ❌ 137: Not supported
QQ Browser
- ❌ 14.9: Not supported
Baidu Browser
- ❌ 13.52: Not supported
KaiOS Browser
- ✅ 2.5: Supported
- ❌ 3: Not supported
See also support for HTTP2, successor of SPDY.
- Resources:
- SPDY whitepaper
- Wikipedia