Besides implementing the CORS mechanism the system also caches the feeds to improve reliability and performance. The locally stored files are preprocessed to clean up the non-standard tags and sort item on the given criteria. An index of all cached is maintained. Once the feed is included in the index a timed script (cron job) refreshes the content regularly.
Log files for both feed updates and access are maintain also to allow in depth analysis on the use and performance of the system.
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