This library will only help you to generate feeds. It has nothing to do with your infrastructure for delivering the feed and the feeds content. That means, I can't really help you with that other than a few ideas:
What you want is to count your downloads of some sort. For that any of the web analytics tools analyzing your HTTP server stats should do the trick. The question, however, is what to count. The feed itself will be repeatedly downloaded by feed readers or podcatchers. You will therefor get a food indicator of how active your feed is, but no chance to get accurate subscriber numbers.
If you are hosting a podcast, take a look at the downloads you get on your media. Not everyone who downloads an episode will listen to it, but those numbers will be far closer.
A final idea it to take a look at the number of media downloads after 72h or so of publishing. That's probably a good indicator for automatic downloads and thus subscribers.
Hope that helps, but I'm closing this issue since it doesn't really have anything to do with this library.
This library will only help you to generate feeds. It has nothing to do with your infrastructure for delivering the feed and the feeds content. That means, I can't really help you with that other than a few ideas:
What you want is to count your downloads of some sort. For that any of the web analytics tools analyzing your HTTP server stats should do the trick. The question, however, is what to count. The feed itself will be repeatedly downloaded by feed readers or podcatchers. You will therefor get a food indicator of how active your feed is, but no chance to get accurate subscriber numbers.
If you are hosting a podcast, take a look at the downloads you get on your media. Not everyone who downloads an episode will listen to it, but those numbers will be far closer.
A final idea it to take a look at the number of media downloads after 72h or so of publishing. That's probably a good indicator for automatic downloads and thus subscribers.
Hope that helps, but I'm closing this issue since it doesn't really have anything to do with this library.