RSS TTL and skipHours

This tag gathers PostRSS technical explainers on the RSS 2.0 specification's optional ttl, skipHours, and skipDays channel tags, which were originally designed to let publishers suggest how often a feed should be re-checked. These articles explain why most modern RSS-to-social automation tools use their own polling logic instead of honoring these legacy tags, and what actually determines how quickly new content gets discovered and distributed today.