YouTube introduces embeddable subscribe button

Google has introduced a new embeddable subscribe button for YouTube channels. The new button is likely to help video creators score more subscribers outside the video sharing network.

The new feature, said to be inspired from RSS feed opt-in and Twitter's follow, allows users to follow their favourite YouTube channels from anywhere. The feature also shows the subscribed channel on their YouTube homepage across the devices.
The subscribe button can be added to a site through an iFrame code for a YouTube video. Google gives creators an option to customise the style for standard and paid YouTube channels. So far, there are three button types – default, Full layout (includes avatar), and Full layout, dark theme for the standard channels. The button language defaults to the user's language settings or is set based on the user's location for logged-out users.