Freebie finding site using interesting algorithm
A little while ago I built an automated website that finds free stuff while filtering out scams. It works in an interesting way. Most freebie sites on the web contain a mix of real, useful free stuff and scammy affiliate and pyramid schemes. I realized that affiliate links are always unique (because they need to contain an affiliate code) while real freebies have URLs that co-occur across multiple sites at roughly the same time. I wrote a crawler in Perl and MySQL that looks for repeating, off-domain URLs that temporally cluster on multiple free stuff sites. I was surprised and pleased to…
Freebie finding site using interesting algorithm launched on May 17, 2011 with 15 votes, #43 of 217 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 15 years on.
In plain words
This website aggregates free offers while filtering out scams and affiliate schemes. It uses an algorithm that identifies legitimate freebies by finding URLs that appear across multiple sites around the same time, since real offers repeat while affiliate links remain unique. The site is built with a Perl crawler and MySQL database, and allows users to rate and categorize discovered freebies. It targets people looking for genuine free products and services without wading through deceptive marketing schemes.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
A little while ago I built an automated website that finds free stuff while filtering out scams. It works in an interesting way. Most freebie sites on the web contain a mix of real, useful free stuff and scammy affiliate and pyramid schemes. I realized that affiliate links are always unique (because they need to…
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