They should be unique… for:
https://www.freecodecamp.org/news/rss/
Regards.
Are you talking about the <guid> element?
I don’t think it is a requirement. The feed validates and the guid is only a recommendation.
I remembered this one thread we had. If your reader is the issue you may have to try another one.
I can’t find the specs for it but…
There are no rules for the syntax.
https://www.xml.com/pub/a/2004/08/18/pilgrim.html
The most recent version of RSS has an element called <guid> that attempts to solve this problem. However, there are several problems with it:
- Older RSS versions don’t have it, and even in the latest version, it’s still optional. So very few feeds actually have it.
- The RSS spec doesn’t give clear guidance on how to make a unique identifier, or how unique it really needs to be, or why you would bother. So many publishers generate useless IDs.
- It’s difficult to compare them, because the data type of the
<guid>element isn’t stable. If a certain attribute is present and contains a certain value, then the element must be treated as a string. But in other cases, the element must be treated as a URL. As we’ll see in a minute, these data types have different rules for equality, so comparing GUIDs is more difficult than it sounds.
Having said that, it does seem a little pointless having an empty <guid> but I do not know enough about RSS or XML to comment on it. So I don’t know why it is there or why it is empty.
Well I’m not expert neither on RSS Feeds, but as in that other thread I had problems with the RSS reader, however I did modified once a Wordpress RSS Feed
https://www.otzerling.com/feedname
I’d just add the post id or permalink to it, instead of leaving it empty that should prevent clients from incorrectly parsing the feed I hope, or better just add the value as is done by default in Wordpress sites:
<guid isPermaLink="false">https://www.mywebsite.com/?p=myid</guid>
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