Feed is an shortcut for RSS feed and become widely used on the internet. The Feeds are pages or files on Your website which gather last topics or last posts on Your blog or website, or any forum. There can be feed with extension .XML or .PHP.RSS Feed subscription
The internet browsers are made the way that when you navigate to a feed page it automatically recognize it and offer you to „Subscribe“ to this RSS feed, there is the time for RSS Feed subscription.
What does the subscription mean? The result is that when the website, blog, or forum get a new content, for example new posts, RSS feed subscription notiffy you about this and you can read the new post content via browser.
So as you can see, it is very handy to use feed to stay updated with the websites. Just try it yourself and for example subscribe to the feed of this website.How to subscribe to a website feed
Its very simple. Just look for image like the following orange one – It is often displayed in the top address bar, and just click it. This is a feed icon and subscribe you to the website updates