HN only recognizes links as duplicates if the URL is exactly the same as a previous submission, so stuff like &quot;#...&quot; at the end of the URL will prevent it from identifying duplicates.<p>I think the most reliable way of finding out if your article (or a similar article) was submitted recently is to go to the HN search site (hn.algolia.com) and search by date for keywords from the title. It&#x27;s a bit of a pain to do, but avoiding lots of duplicate stories makes HN nicer for everyone.