SPDY protocol
- UNOFFNetworking protocol for low-latency transport of content over the web. Superseded by HTTP version 2.
IE
- 5.5 - 10: Not supported
- 11: Supported
Edge
- 12 - 102: Not supported
- 103: Not supported
Firefox
- 2 - 12: Not supported
- 13 - 50: Supported
- 51 - 101: Not supported
- 102: Not supported
- 103 - 104: Not supported
Chrome
- 4 - 50: Supported
- 51 - 102: Not supported
- 103: Not supported
- 104 - 106: Not supported
Safari
- 3.1 - 7.1: Not supported
- 8 - 12: Supported
- 12.1 - 15.4: Supported
- 15.5: Supported
- 16.0 - TP: Supported
Opera
- 9 - 12: Not supported
- 12.1 - 39: Supported
- 40 - 41: Not supported
- 42: Supported
- 43: Not supported
- 44: Supported
- 45 - 85: Not supported
- 86: Not supported
- 87: Not supported
Safari on iOS
- 3.2 - 7.1: Not supported
- 8 - 12.1: Supported
- 12.2 - 15.4: Supported
- 15.5: Supported
- 16.0: Supported
Opera Mini
- all: Not supported
Android Browser
- 2.1 - 2.3: Not supported
- 3 - 4.4.4: Supported
- 103: Not supported
Opera Mobile
- 10 - 12: Not supported
- 12.1: Supported
- 64: Not supported
Chrome for Android
- 103: Not supported
Firefox for Android
- 101: Not supported
UC Browser for Android
- 12.12: Not supported
Samsung Internet
- 4: Supported
- 5 - 16.0: Not supported
- 17.0: Not supported
QQ Browser
- 10.4: Not supported
Baidu Browser
- 7.12: Support unknown
KaiOS Browser
- 2.5: Supported
See also support for HTTP2, successor of SPDY.
Chrome will be removing support in 2016 (in favor of HTTP2), other browsers likely to follow.
- Resources:
- SPDY whitepaper
- Wikipedia