The album, which is exclusively available at Mybloodyvalentine.org, was launched at midnight Saturday and the website went down almost immediately thereafter, NME.com reported. It wasn't clear why.
My Bloody Valentine, which hadn't released an album since its 1991 "Loveless," announced the release of the new album via its Facebook page, posting: "We are preparing to go live with the new album/website this evening. We will make an announcement as soon as its up."
The band's frontman, Kevin Shields, said the album "might be out in two or three days."
In November, Shields said he thought the band's fans would "immediately connect with something" when they hear the new album.
"Based on the very, very few people who've heard stuff -- some engineers, the band, and that's about it -- some people think it's stranger than 'Loveless.' I don't," he said. "I feel like it really frees us up, and in the bigger picture it's 100 percent necessary."