ATCOM netvolution WCM, probably alongside others, a CMS powering several
high profile and high traffic Greek news sites, among other sites,
publishes the RSS feed under /rss/. Add it to the list. It's generic
enough to allow us to assume other software might do it to
On a select set of 627 Greek news media sites (the infamous Petsas list),
adding this rule increased discoverability of RSS feeds by a factor of
2.61% (from 498 to 511).
Some websites redirects unknown URLs to the home page.
As result, the list of known URLs is returned to the subscription list.
We don't want the user to choose between invalid feed URLs.
I came across a few blogs that didn't have a link rel alternate
but offered a RSS/Atom feed.
This aims at solving this issue for "well known" feed urls, since
these urls are often the same.
- Make sure query strings parameters are encoded
- As opposed to the standard library, do not append equal sign
for query parameters with empty value
- Strip URL fragments like Web browsers
- Feeds with charset specified only in Content-Type header and not in XML document
- Feeds with charset specified in both places
- Feeds with charset specified only in XML document and not in HTTP header
