youtube optimization 2020

16:10

26:58

1:21

1:21

2:03

15:40

13:12

11:32

23:06

8:39

9:12

4:54

19:39

2:00

7:12

4:50

2:06

2:44

3:00

12:13

14:07

38:30

7:17

5:51

1:48

1:17

13:01

7:29

9:47

40:30

15:47

34:21

15:27

9:20

5:56

21:25

2:23

2:04

43:58

6:39