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Do Not Track API

API to allow the browser's Do Not Track setting to be queried via navigator.doNotTrack. Due to lack of adoption the Do Not Track specification was deprecated in 2018.

Spec	https://www.w3.org/TR/tracking-dnt/
Status	Unofficial / Note

IE	Edge	Firefox	Chrome	Safari	Opera
			108
		107	107	TP
		106	106	16.1
11 ⁽²⁾	105	105	105	16.0	91
10 ^(1,*)	104	104	104	15.6	90
9 ^(1,*)	103	103	103	15.5	89
8	102	102	102	15.4	88
Show all
7	101	101	101	15.2-15.3	87
6	100	100	100	15.1	86
5.5	99	99	99	15	85
	98	98	98	14.1	84
	97	97	97	14	83
	96	96	96	13.1	82
	95	95	95	13	81
	94	94	94	12.1	80
	93	93	93	12	79
	92	92	92	11.1	78
	91	91	91	11	77
	90	90	90	10.1	76
	89	89	89	10	75
	88	88	88	9.1	74
	87	87	87	9 ⁽⁴⁾	73
	86	86	86	8 ⁽⁴⁾	72
	85	85	85	7.1 ⁽⁴⁾	71
	84	84	84	7 ⁽⁴⁾	70
	83	83	83	6.1 ⁽⁴⁾	69
	81	82	81	6	68
	80	81	80	5.1	67
	79	80	79	5	66
	18	79	78	4	65
	17	78	77	3.2	64
	16 ⁽²⁾	77	76	3.1	63
	15 ⁽²⁾	76	75		62
	14 ⁽²⁾	75	74		60
	13 ⁽²⁾	74	73		58
	12 ⁽²⁾	73	72		57
		72	71		56
		71	70		55
		70	69		54
		69	68		53
		68	67		52
		67	66		51
		66	65		50
		65	64		49
		64	63		48
		63	62		47
		62	61		46
		61	60		45
		60	59		44
		59	58		43
		58	57		42
		57	56		41
		56	55		40
		55	54		39
		54	53		38
		53	52		37
		52	51		36
		51	50		35
		50	49		34
		49	48		33
		48	47		32
		47	46		31
		46	45		30
		45	44		29
		44	43		28
		43	42		27
		42	41		26
		41	40		25
		40	39		24
		39	38		23
		38	37		22
		37	36		21
		36	35		20
		35	34		19
		34	33		18
		33	32		17
		32	31		16
		31 ⁽³⁾	30		15
		30 ⁽³⁾	29		12.1
		29 ⁽³⁾	28		12
		28 ⁽³⁾	27		11.6
		27 ⁽³⁾	26		11.5
		26 ⁽³⁾	25		11.1
		25 ⁽³⁾	24		11
		24 ⁽³⁾	23		10.6
		23 ⁽³⁾	22		10.5
		22 ⁽³⁾	21		10.0-10.1
		21 ⁽³⁾	20		9.5-9.6
		20 ⁽³⁾	19		9
		19 ⁽³⁾	18
		18 ⁽³⁾	17
		17 ⁽³⁾	16
		16 ⁽³⁾	15
		15 ⁽³⁾	14
		14 ⁽³⁾	13
		13 ⁽³⁾	12
		12 ⁽³⁾	11
		11 ⁽³⁾	10
		10 ⁽³⁾	9
		9 ⁽³⁾	8
		8	7
		7	6
		6	5
		5	4
		4
		3.6
		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
16.1
16.0	all	105	10 ⁽⁴⁾	64	105	104	11 ⁽²⁾	13.4	18.0	13.1	13.18	2.5
15.6		4.4.3-4.4.4	7	12.1			10 ^(1,*)		17.0
15.5		4.4		12					16.0
15.4		4.2-4.3		11.5					15.0
Show all
15.2-15.3		4.1		11.1					14.0
15.0-15.1		4		11					13.0
14.5-14.8		3		10					12.0
14.0-14.4		2.3							11.1-11.2
13.4-13.7		2.2							10.1
13.3		2.1							9.2
13.2									8.2
13.0-13.1									7.2-7.4
12.2-12.5									6.2-6.4
12.0-12.1									5.0-5.4
11.3-11.4									4
11.0-11.2
10.3
10.0-10.2
9.3
9.0-9.2
8.1-8.4 ⁽⁴⁾
8 ⁽⁴⁾
7.0-7.1 ⁽⁴⁾
6.0-6.1
5.0-5.1
4.2-4.3
4.0-4.1
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.

Bugs

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.".

Resources

MDN Web Docs - doNotTrack

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