Do Not Track API

Allows the browser's Do Not Track setting to be queried via navigator.doNotTrack.

Spec	https://www.w3.org/TR/tracking-dnt/
Status	W3C Candidate Recommendation

IE	Edge	Firefox	Chrome	Safari	Opera
			98
		95	97
		94	96	TP
11 ⁽²⁾	95	93	95	15	80
10 ^(1,*)	94	92	94	14.1	79
9 ^(1,*)	93	91	93	14	78
8	92	90	92	13.1	77
Show all
7	91	89	91	13	76
6	90	88	90	12.1	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 ⁽⁴⁾	68
	81	80	81	8 ⁽⁴⁾	67
	80	79	80	7.1 ⁽⁴⁾	66
	79	78	79	7 ⁽⁴⁾	65
	18	77	78	6.1 ⁽⁴⁾	64
	17	76	77	6	63
	16 ⁽²⁾	75	76	5.1	62
	15 ⁽²⁾	74	75	5	60
	14 ⁽²⁾	73	74	4	58
	13 ⁽²⁾	72	73	3.2	57
	12 ⁽²⁾	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 ⁽³⁾	32		16
		30 ⁽³⁾	31		15
		29 ⁽³⁾	30		12.1
		28 ⁽³⁾	29		12
		27 ⁽³⁾	28		11.6
		26 ⁽³⁾	27		11.5
		25 ⁽³⁾	26		11.1
		24 ⁽³⁾	25		11
		23 ⁽³⁾	24		10.6
		22 ⁽³⁾	23		10.5
		21 ⁽³⁾	22		10.0-10.1
		20 ⁽³⁾	21		9.5-9.6
		19 ⁽³⁾	20		9
		18 ⁽³⁾	19
		17 ⁽³⁾	18
		16 ⁽³⁾	17
		15 ⁽³⁾	16
		14 ⁽³⁾	15
		13 ⁽³⁾	14
		12 ⁽³⁾	13
		11 ⁽³⁾	12
		10 ⁽³⁾	11
		9 ⁽³⁾	10
		8	9
		7	8
		6	7
		5	6
		4	5
		3.6	4
		3.5
		3
		2

Notes

Partial support refers to the doNotTrack field being misnamed, or being attached to an object other than navigator (e.g. window).

IE 9 and 10 are vendor-prefixed as navigator.msDoNotTrack
IE 11 and Edge 16- use window.doNotTrack instead of navigator.doNotTrack.
Browsers based on Gecko versions prior to 32 used 'yes' and 'no' rather than '1' and '0'.
Between versions 6.1.1 and 9.1.3, Safari supported an ultimately-rejected amendment to the spec, using window.doNotTrack rather than navigator.doNotTrack.

^* Partial support with prefix.

For Gecko versions < 32, some browsers incorrectly report 'yes' for both "Tell sites I don't want to be tracked" _and_ "Tell sites I _do_ want to be tracked.".

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
https://caniuse.com/do-not-track