SPDY protocol
- UNOFFNetworking protocol for low-latency transport of content over the web. Superseded by HTTP version 2.
Chrome
- 4 - 50: Supported
- 51 - 121: Not supported
- 122: Not supported
- 123 - 125: Not supported
Edge
- 12 - 121: Not supported
- 122: Not supported
Safari
- 3.1 - 7.1: Not supported
- 8 - 12: Supported
- 12.1 - 17.3: Supported
- 17.4: Supported
- TP: Supported
Firefox
- 2 - 12: Not supported
- 13 - 50: Supported
- 51 - 122: Not supported
- 123: Not supported
- 124 - 126: Not supported
Opera
- 9 - 12: Not supported
- 12.1 - 39: Supported
- 40 - 41: Not supported
- 42: Supported
- 43: Not supported
- 44: Supported
- 45 - 107: Not supported
- 108: Not supported
IE
- 5.5 - 10: Not supported
- 11: Supported
Chrome for Android
- 122: Not supported
Safari on iOS
- 3.2 - 7.1: Not supported
- 8 - 12.1: Supported
- 12.2 - 17.3: Supported
- 17.4: Supported
Samsung Internet
- 4: Supported
- 5 - 22: Not supported
- 23: 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
- 122: Not supported
Firefox for Android
- 123: 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