SPDY protocol

Networking protocol for low-latency transport of content over the web. Superseded by HTTP version 2.

Spec	https://http2.github.io/http2-spec/index.html
Status	Unofficial / Note

IE	Edge	Firefox	Chrome	Safari	Opera
			98
		95	97
		94	96	TP (1)
11	95	93	95	15 (1)	80
10	94	92	94	14.1 (1)	79
9	93	91	93	14 (1)	78
8	92	90	92	13.1 (1)	77
Show all
7	91	89	91	13 (1)	76
6	90	88	90	12.1 (1)	75
5.5	89	87	89	12	74
	88	86	88	11.1	73
	87	85	87	11	72
	86	84	86	10.1	71
	85	83	85	10	70
	84	82	84	9.1	69
	83	81	83	9	68
	81	80	81	8	67
	80	79	80	7.1	66
	79	78	79	7	65
	18	77	78	6.1	64
	17	76	77	6	63
	16	75	76	5.1	62
	15	74	75	5	60
	14	73	74	4	58
	13	72	73	3.2	57
	12	71	72	3.1	56
		70	71		55
		69	70		54
		68	69		53
		67	68		52
		66	67		51
		65	66		50
		64	65		49
		63	64		48
		62	63		47
		61	62		46
		60	61		45
		59	60		44
		58	59		43
		57	58		42
		56	57		41
		55	56		40
		54	55		39
		53	54		38
		52	53		37
		51	52		36
		50	51		35
		49	50		34
		48	49		33
		47	48		32
		46	47		31
		45	46		30
		44	45		29
		43	44		28
		42	43		27
		41	42		26
		40	41		25
		39	40		24
		38	39		23
		37	38		22
		36	37		21
		35	36		20
		34	35		19
		33	34		18
		32	33		17
		31	32		16
		30	31		15
		29	30		12.1
		28	29		12
		27	28		11.6
		26	27		11.5
		25	26		11.1
		24	25		11
		23	24		10.6
		22	23		10.5
		21	22		10.0-10.1
		20	21		9.5-9.6
		19	20		9
		18	19
		17	18
		16	17
		15	16
		14	15
		13	14
		12	13
		11	12
		10	11
		9	10
		8	9
		7	8
		6	7
		5	6
		4	5
		3.6	4
		3.5
		3
		2

Safari on iOS	Opera Mini	Android Browser	Blackberry Browser	Opera Mobile	Android Chrome	Android Firefox	IE Mobile	Android UC Browser	Samsung Internet	QQ Browser	Baidu Browser	KaiOS Browser
15 (2)	all	94	10	64	94	92	11	12.12	15.0	10.4	7.12	2.5
14.5-14.8 (2)		4.4.3-4.4.4	7	12.1			10		14.0
14.0-14.4 (2)		4.4		12					13.0
13.4-13.7 (2)		4.2-4.3		11.5					12.0
Show all
13.3 (2)		4.1		11.1					11.1-11.2
13.2 (2)		4		11					10.1
13.0-13.1 (2)		3		10					9.2
12.2-12.5 (2)		2.3							8.2
12.0-12.1		2.2							7.2-7.4
11.3-11.4		2.1							6.2-6.4
11.0-11.2									5.0-5.4
10.3									4
10.0-10.2
9.3
9.0-9.2
8.1-8.4
8
7.0-7.1
6.0-6.1
5.0-5.1
4.2-4.3
4.0-4.1
3.2

Notes

See also support for HTTP2, successor of SPDY.

Chrome will be removing support in 2016 (in favor of HTTP2), other browsers likely to follow.

1. Deprecated as of macOS Mojave 10.4.4. To be completely removed in a future version of macOS.

2. Deprecated as of iOS 12.2. To be completely removed in a future version of iOS.

Resources

• Wikipedia
• SPDY whitepaper