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Ask HN: Is HN's duplicate url detection broken?

3•khaledh•57m ago
I noticed that recently some stories are submitted more than once, and the duplicates make it to the front pages. I thought HN detects this and redirects similar submissions to the first one.

Examples:

Show HN: Whetuu – a zero-config cross-shell prompt written in Zig (https://github.com/yamafaktory/whetuu)

https://news.ycombinator.com/item?id=48991361

https://news.ycombinator.com/item?id=48981557

Stop pretending billionaires built the future (https://www.elysian.press/p/billionaires-didnt-create-innovation)

https://news.ycombinator.com/item?id=49017118

https://news.ycombinator.com/item?id=49023161

What's Under Your Feet in New York City? (https://practical.engineering/blog/2026/7/21/whats-under-your-feet-in-new-york-city)

https://news.ycombinator.com/item?id=48994864

https://news.ycombinator.com/item?id=49006049

Comments

ChrisArchitect•42m ago
Dupes are more about being duplicate discussions. It's okay to submit a url again - after a bit of time - if it didn't get a lot of traction/discussion. So if an initial submission gets overlooked, after a number of hours someone submitting it again is ok. (sometimes neither will go anywhere) Stuff moves fast around here tho. It's more about keeping the posts fresh and not repeating our discussions over and over.

AI will not trigger employment collapse, staffing company Adecco Group says

https://www.reuters.com/business/ai-will-not-trigger-employment-collapse-staffing-company-adecco-...
1•gnabgib•8m ago•0 comments

Flux 3: From AI image generation to visual intelligence

https://textideo.com/model/flux-3
1•Nancylily•10m ago•0 comments

Why hasn't AI increased unemployment?

https://twitter.com/PeterMcCrory/status/2079979321607745905
1•Ariarule•10m ago•0 comments

Ageless Atlas – a biological age proxy across the 12 hallmarks of aging

https://agelessatlas.com/
1•luciabazanw•11m ago•0 comments

A Great Deal of Information About Hacker News

https://vale.rocks/posts/hacker-news
1•YounesDz•13m ago•0 comments

Kat-Coder-v2.5 Technical Report (Qwen3.6-35B-A3B base for post-training)

https://arxiv.org/abs/2607.05471
1•truth_seeker•14m ago•0 comments

Midscroll – Windows mm autoscroll for Linux, works on Wayland and X11

https://github.com/gnhen/midscroll
1•gnhen•16m ago•0 comments

De-link: open-source eInk reader (hardware)

https://de-link.me/
1•Naracion•18m ago•2 comments

UK AISI / Caisi Preliminary Assessment of Kimi K3's Cyber Capabilities

https://www.nist.gov/news-events/news/2026/07/uk-aisi-caisi-preliminary-assessment-kimi-k3s-cyber...
3•madars•20m ago•0 comments

Intel committed to manufacturing 14A node

https://bsky.app/profile/rogoway.bsky.social/post/3mrdwvtowxa2n
1•osnium123•21m ago•1 comments

The cost model of microfront ends, from first principles

https://medium.com/@andrew.redican.mejia/microfrontends-from-first-principles-178aafe02ce5
2•andrew_redican•21m ago•0 comments

Russian head of World Chess suspends activity over EU sanctions

https://www.reuters.com/sports/russian-head-fide-suspends-activity-over-eu-sanctions-2026-07-23/
2•ChrisArchitect•21m ago•1 comments

Tinfoil – Private AI

https://tinfoil.sh
1•gurjeet•27m ago•0 comments

Starlink v5 flat vs. v4 flat (standard) dimension and weight comparison

https://starlink.com/bl/support/article/5465736f-fa8d-3ac1-dd3a-7a259d12fa8d
1•walrus01•32m ago•0 comments

Show HN: GlossaryPage – Turn customer questions into knowledge pages

https://glossarypage.com/
1•morioka•35m ago•0 comments

Elon Musk Melts Down over Perfectly Normal Questions in Wild New Interview

https://gizmodo.com/elon-musk-economist-interview-2000790016
3•makerdiety•39m ago•2 comments

Seeing Is Not Believing: Realistic AI Videos Disrupt Confidence in Real Videos

https://www.media.mit.edu/publications/seeing-is-not-believing/
1•abhas9•40m ago•0 comments

just surf

https://ben.page/surf
3•jer0me•40m ago•0 comments

Gigatoken-rb – A Ruby port of gigatoken that's 1.6x faster

https://github.com/jetpks/gigatoken-rb
1•jetpks•47m ago•0 comments

Show HN: Bohay – Mission control for your AI coding agents

https://bohay.dev/
1•ariestiyansyah•48m ago•0 comments

MLFlow Alternative Written in Go

https://github.com/zeddo123/mlsolid
3•zeddo123•52m ago•0 comments

In the 1950s, a Soviet engineer proposed damming the Bering Strait

https://economictimes.indiatimes.com/us/news/in-the-1950s-a-soviet-engineer-proposed-damming-the-...
2•iancmceachern•53m ago•0 comments

Ask HN: Is HN's duplicate url detection broken?

3•khaledh•57m ago•1 comments

Show HN: RefurbAlert – Never miss a refurbished deal again

https://refurbalert.com/us
1•RioRaby•57m ago•0 comments

Tesla Sinks on Investor Angst over AI Spending, Profit Drop

https://news.bloomberglaw.com/texas-brief/tesla-profit-falls-well-short-of-expectations-as-costs-...
2•1vuio0pswjnm7•1h ago•0 comments

U of T mathematician Jacob Tsimerman awarded prestigious Fields Medal

https://www.utoronto.ca/news/nobel-prize-mathematics-u-t-mathematician-jacob-tsimerman-awarded-pr...
3•crescit_eundo•1h ago•1 comments

Show HN: I built a local Node.js conduit for the BorgIOS network

https://github.com/bitmonky/borgHUI
2•BorgIOS•1h ago•1 comments

Don't Trust the Label: License Laundering in AI Supply Chains

https://arxiv.org/abs/2607.20300
3•sbulaev•1h ago•0 comments

Uber's New Litigation Funding Terms Would Hinder Accountability

https://news.bloomberglaw.com/legal-exchange-insights-and-commentary/ubers-new-litigation-funding...
1•1vuio0pswjnm7•1h ago•0 comments

AI Was Supposed to Lift Everybody., The Price Tag Says Otherwise

https://AllyAgentOperations.com/blog/ai-pricing-access-everyone/
3•marvinlewis•1h ago•0 comments