RSS <ttl> Element
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Definition and Usage
The <ttl> (ttl=time to live) element specifies the number of minutes the feed can stay cached before refreshing it from the source.
Example
<?xml version="1.0" encoding="UTF-8" ?>
<rss version="2.0">
<channel>
<title>W3Schools Home Page</title>
<link>http://www.w3schools.com</link>
<description>Free web building tutorials</description>
<ttl>60</ttl>
<item>
<title>RSS Tutorial</title>
<link>http://www.w3schools.com/xml/xml_rss.asp</link>
<description>New RSS tutorial on W3Schools</description>
</item>
</channel>
</rss>
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