All YouTube users can upload videos up to 15 minutes each in duration. Users who have a good track record of complying with the site's Community Guidelines may be offered the ability to upload videos up to 12 hours in length, as well as live streams, which requires verifying the account, normally through a mobile phone.[78][79] When YouTube was launched in 2005, it was possible to upload longer videos, but a ten-minute limit was introduced in March 2006 after YouTube found that the majority of videos exceeding this length were unauthorized uploads of television shows and films.[80] The 10-minute limit was increased to 15 minutes in July 2010.[81] In the past, it was possible to upload videos longer than 12 hours. Videos can be at most 128 GB in size.[78] Video captions are made using speech recognition technology when uploaded. Such captioning is usually not perfectly accurate, so YouTube provides several options for manually entering the captions for greater accuracy.[82]

In June 2014, YouTube introduced videos playing at 60 frames per second, in order to reproduce video games with a frame rate comparable to high-end graphics cards.[97][98] The videos play back at a resolution of 720p or higher.[99] YouTube videos are available in a range of quality levels. The former names of standard quality (SQ), high quality (HQ), and high definition (HD) have been replaced by numerical values representing the vertical resolution of the video. The default video stream is encoded in the VP9 format with stereo Opus audio; if VP9/WebM is not supported in the browser/device or the browser's user agent reports Windows XP, then H.264/MPEG-4 AVC video with stereo AAC audio is used instead.[100]
In May 2011, 48 hours of new videos were uploaded to the site every minute,[23] which increased to 60 hours every minute in January 2012,[23] 100 hours every minute in May 2013,[24][25] 300 hours every minute in November 2014,[26] and 400 hours every minute in February 2017.[27] As of January 2012, the site had 800 million unique users a month.[28] It is estimated that in 2007 YouTube consumed as much bandwidth as the entire Internet in 2000.[29] According to third-party web analytics providers, Alexa and SimilarWeb, YouTube is the second-most visited website in the world, as of December 2016; SimilarWeb also lists YouTube as the top TV and video website globally, attracting more than 15 billion visitors per month.[1][30][31] In October 2006, YouTube moved to a new office in San Bruno, California.[32]
I’m sure you have seen a viral YouTube video. They come in all shapes and sizes—from super popular songs like “Watch Me (Whip/Nae Nae)” to a funny grumpy cat, someone falling down, or even something completely off the wall like Ylvis' “What Does the Fox Say?" video. What do they all have in common? Well, these posters all made a ton of money on YouTube when their videos went viral.
If you’re having trouble getting views, try to be creative on where you share your videos. Targeting an audience with an interest in your type of content works better than trying to appeal to a general audience, so you may find better results from a Facebook (FB) group, sub-Reddit or forum about the specific topic. Also be sure to set up your individual channel settings so if one video becomes popular visitors can easily find related videos you’ve created.

Karim said the inspiration for YouTube first came from Janet Jackson's role in the 2004 Super Bowl incident, when her breast was exposed during her performance, and later from the 2004 Indian Ocean tsunami. Karim could not easily find video clips of either event online, which led to the idea of a video sharing site.[9] Hurley and Chen said that the original idea for YouTube was a video version of an online dating service, and had been influenced by the website Hot or Not.[8][10]
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