Is it valid to include multiple RSS feeds within the <head> tag?
What I mean is, tags as follow:
<link rel="alternate" type="application/rss+xml" title="feed one" href="/rss/feedone"/>
<link rel="alternate" type="application/rss+xml" title="feed two" href="/rss/feedtwo"/>
..... etc
We have a small collection (five total) of RSS feeds that we have had for a while, but have only ever included the 'main' one in within the head tags.
Is it okay to include all of them?
Yes, that's totally valid, and the browser should offer the choice of which feed to subscribe to (those that still support rss, anyway)
来源：https://stackoverflow.com/questions/7292244/multiple-rss-link-tags-within-the-head-valid-markup-or-not