I just checked a second ago and the 'ss' method is working again. I'm not sure what has happened. I've tried several links and they all work.

No, I just meant that as a workaround, I could paste the youtube.com links without the 'ss' to the savefrom.net website and download the videos that way instead. I much prefer to use the 'ss' method since I don't have to copy the youtube link and then paste it to the savefrom.net website.

Browser: Chrome 53.0.2785 Windows 10 User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.89 Safari/537.36

I'm in the United States.

Sample Links:

https://www.ssyoutube.com/watch?time_continue=1&v=i-OMTL19dv8

https://www.ssyoutube.com/watch?v=JEvd7kJX9Bk

https://www.ssyoutube.com/watch?v=UlOsdGU_PD4

It seems that none of the links with 'ss' work. As a workaround, I was able to paste the youtube.com links to the 'savefrom.net' website and download the videos successfully.