We have a website with a RSS feed. When I use Google Reader to subscribe to the feed, it is only updated once in a while - something like every 4-5 days. In Google Reader the latest 2 or 3 posts appear at the same time.
I have setup an quick test script that downloads the RSS feed every hour, so that I could monitor, that the feed is updated as expected. And everything looks good, when I just download the feed.
I'm beginning to believe that the cause for this behavior in Google Reader is to do with Googles RSS crawler, feedfetcher. When I look at Date Received and Date Published - Google Reader differentiate between Date Received and Date Published - Date Received is the same for the 2 or 3 posts, and Date Published matchtes the pubDate in the feed.
This leads me to believe that Google's RSS crawler, feedfecther, doesn't crawl the RSS feed more that something like every 4-5 days.
What are your experiences with Google feedfetcher? Is it expected to have this kind of latency?
(I haven't looked at the server logs yet, but that would be a logically next step.)