Yes this is what I mentioned: WebSub moves the load from the publisher to the hub while giving subscribers their content as soon as it is published. But it's so

Yes this is what I mentioned: WebSub moves the load from the publisher to the hub while giving subscribers their content as soon as it is published. But it's something that lives on top of RSS, and requires additional resources (especially for subscribers who need an endpoint running somewhere) RSS is just doing an HTTP call to retrieve a XML document.