For me it was the first season of High school DxD on YouTube.
Elfen Lied>
([redacted{ website 8))
I once was a dapper young man, untainted by the cursed grasp of anime. But then, YouTube, evil spawn that it is, recommended one of these literature girl compilations from Danshi Koukousei no Nichijou. It was hilarious. I couldn't keep myself from looking up the full show, and thus began my descent into madness.
This particular wind is troubled alright, goddamn it.
I think I've watched it on a big-screen video projector on a school playing field. Sure it released long before I born, so bit too old for me, though was enjoyable moment especially since watched it with all school mates there :) anilist.co/anime/2279
EDIT:Oh I was dumb "on YouTube, an app, or on a website"
It was Suzumiya Haruhi no Yuuutsu anilist.co/anime/849
This was my first anime on Crunchyroll:
Orenchi no Furo Jijou
...and my first anime from a non-Crunchyroll streaming site:
Kuroshitsuji
First time watching anime was at a friends house:
anilist.co/anime/6702
Soul Eater
On a website.
download from torrent, based on friend recommendation :D
Shiki
or the first anime that i stream bc i was interested in the story plot myself:
Zettai Shounen
On a laptop the 1st I saw was Strike the Blood. Idk why I watched this. I guess I
pulled it out of a hat. It was years ago so I forgot. I remembered liking the action and the openings. Just s1.
Strike the Blood
But i guess on YouTube it was CardCaptor Sakura
Cardcaptor Sakura
I liked the dub. Felt like another 4kids show.
The Troubled Life of Miss Kotoura
This was the first anime I started and completed on Youtube when someone uploaded the entire thing there.
Shugo Chara
this on crunchyroll in 2013
Here's some I remember (Only counting completed ones btw)
Danganronpa Kibou no Gakuen to Zetsubou no Koukousei The Animation Watched for the first time on a free anime streaming website for spanish speakers
Durarara Fully watched on free Hulu using a janky VPN extension for Chrome to bypass the region control
Taiho Shichauzo First one I ever torrented
Kill la Kill Finally, first one I ever finished on Netflix, albeit started and watched other places before Netflix.
So in all likehood, this one's the first one I fully watched on Netflix: Mahou Shoujo MadokaMagica