When publishing an RSS feed, is there some attribute in the XML that can be used to recommend the update interval/frequency?
And if its not part of the standard, is there some generally recognised way?
When publishing an RSS feed, is there some attribute in the XML that can be used to recommend the update interval/frequency?
And if its not part of the standard, is there some generally recognised way?
The specification here http://www.rssboard.org/rss-specification#requiredChannelElements has these optional parameters specified for the channel element:
These to tell clients when they don't need to update..
skipHours - A hint for aggregators telling them which hours they can skip. This element contains up to 24 < hour > sub-elements whose value is a number between 0 and 23, representing a time in GMT, when aggregators, if they support the feature, may not read the channel on hours listed in the < skipHours > element. The hour beginning at midnight is hour zero.
skipDays - A hint for aggregators telling them which days they can skip. This element contains up to seven < day > sub-elements whose value is Monday, Tuesday, Wednesday, Thursday, Friday, Saturday or Sunday. Aggregators may not read the channel during days listed in the < skipDays > element.
and/or this for telling clients how often they need to update.
ttl - ttl stands for time to live. It's a number of minutes that indicates how long a channel can be cached before refreshing from the source.