Sure. This assumes you’re using Google Chrome, but you can follow a similar process in other browsers.
- Open the Developer Tools panel F12
- Switch to the Network tab.
- Load an RSS feed, for example this topic -
https://meta.discourse.org/t/bing-is-picking-all-the-rss-feed-for-each-post-can-i-disable-the-feed-in-discourse/168025.rss
- Select the RSS feed entry from the list.
- Look at the response headers on the Headers tab, you should see
x-robots-tag: noindex