Simon Willison’s Weblog

RSS Duplicate Detection. “Detecting duplicate items in an RSS feed is something of a black art”. I hadn’t realised quite how involved such a basic function of an aggregator could be.

Posted 22nd January 2008 at 8:11 pm

Recent articles

Vibe engineering - 7th October 2025
OpenAI DevDay 2025 live blog - 6th October 2025
Embracing the parallel coding agent lifestyle - 5th October 2025

aggregator 1 atom 26 blackart 1 duplicates 1 james-holderness 1 rss 41 syndication 9

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