SAN FRANCISCO: YouTube celebrated its seventh birthday by saying it has hit fresh milestones in terms of its offerings and the amount of time spent on the video-sharing website.

“Today 72 hours of video are uploaded to the site every minute,” the Google-owned website said in a blog post Sunday.

“Like many 7-year olds around the world, we're growing up so fast! In other words, every single minute you now upload three whole days worth of video instead of two. That's 61 Royal Wedding Ceremonies, 841 Bad Romances, and 1,194 Nyan Cats.”

The blog added, “all 800 million of you all over the world have shown us we're on the right track by increasing subscriptions 50 per cent and watching over three billion hours a month.” Google bought YouTube in 2006 for $1.65 billion.

The Mountain View, California-based Internet search and advertising giant has not yet announced a profit for the video-sharing site despite its massive global popularity.

YouTube has been gradually adding professional content such as full-length television shows and movies to its vast trove of amateur video offerings in a bid to attract advertisers.