It was once on Netflix and was removed and you can't watch it on Crunchyroll either
S1 - S3: Anime on Demand
S4: WAKANIM
Seasons 1 - 3 = Anime on Demand
Season 4 = Wakanim
It was once on Netflix and was removed and you can't watch it on Crunchyroll either
Yes, that's right, the first season was on Netflix.
Now you can watch it from the 1S - 3S on Anime on Demand, but unfortunately this is not free.
The 4S is currently running on Wakanim, but to my knowledge only with a subscription. (Every Sunday 18:34)
On proxer you can see the attack on titan