YouTube

2005–2011
The logo consists of the black word "You" and a red rounded rectangle with the word "Tube" in it next to it. This logo is still being used on YouTube Merchandise and on some other pages.

2011–2013
This modification of the YouTube logo was introduced in July 2011 as a part of the Cosmic Panda experiment. It officially became the new logo a few months later. It has the red square in a darker color this time. Also, in 2012, the slogan "Broadcast Yourself" was retired. This logo is still used on the YouTube Help Center page.

2013–present


On December 19, 2013, the red rectangle was made slightly lighter in color. Also, the word "You" was made more black and the shadow behind the word "Tube" was removed.

Website history
This is a look at YouTube's website layout over the years.

Yoodles
Like Google with their Doodles, YouTube changes their default logo to a stylized one with relevance to a certain date on various days throughout the year. These special logos are sometimes called Yoodles.

2011-2013, 2014-present
This favicon was used starting in 2011 and was replaced in 2013 by the next favicon, but it returned in late 2014.

2015-present


This is used in tandem with the 2011 icon.