The problems appear to have started in the early afternoon, US Pacific Time. In some cases, videos would load but only after a minute or longer delay.
On Twitter, the complaints lasted about an hour. User "S Sometimes" tweeted a common gripe: "YouTube is going SO SLOW! I feel like I have dial-up interwebz again. GRRRR."
Google has yet to confirm the outage, which lasted an hour or so. By around 1:30 p.m. (U.S. Pacific) YouTube appeared to be back to normal, based on feedback from users in California, Massachusetts, and the United Kingdom.
The YouTube glitch is yet another in a recent string of , including outages and slowdowns that hit Google Search, Google News, and Google Apps in mid-May.