'Knockoff' is a Chrome extension that helps eliminate counterfeit and low-quality products from Amazon.
A browser extension called 'Knockoff' has been released that makes it easier to spot suspicious brands in Amazon search results. Knockoff is an extension that locally identifies the brand names displayed in Amazon's product listings and hides or makes less prominent products that may not be from trusted, established brands.
Knockoff: Amazon, without the knockoffs
Shpigford/knockoff: Chrome extension that filters pseudo-brand junk out of Amazon. Buy from real, established brands.
https://github.com/Shpigford/knockoff
Knockoff is available on the Chrome Web Store.
Knockoff — Amazon Brand Filter - Chrome Web Store
https://chromewebstore.google.com/detail/pjgickchbiikhdfpmecaabkphmofpdce
On Amazon, you can often find products from brands that have registered with the Amazon Brand Registry using trademarks, even though the company's actual existence, guarantees, and reputation are often unclear. Knockoff refers to these brands as 'pseudo-brands.'
Knockoff is a system that extracts brand names from each product tile displayed on Amazon's product search results page and then checks them sequentially against allowlists, blocklists, known counterfeit brand lists, existing brand lists, and the string characteristics of the brand name to determine authenticity.
What sets Knockoff apart is that it doesn't just use a simple blacklist system, but also considers the 'authenticity' of the brand name as a criterion. For example, names with extremely few vowels, difficult-to-pronounce consonant sequences, unnatural letter combinations in English, random mixes of uppercase and lowercase letters, and all-uppercase strings of 5 to 9 characters are listed as characteristics of trademark-monopolizing brand names.
However, Knockoff doesn't just mechanically filter out brands that look suspicious. Since there are real, well-known brands with short capital letter names like ASICS, RYOBI, and HOKA, brands included in the known brands list take precedence over string-based filtering.
This is what it looks like when Knockoff is actually enabled. Safe brands will have a checkmark and a green badge, while suspicious items will display the flagged text and a red badge.
For filtered products, you can choose from three display methods: completely hide them, display them faintly, or just add a label. Even when hidden, an indication of how many items have been filtered will be displayed, and you can redisplay them with a single click, so the products don't disappear without explanation.
The settings screen looks like this. The top option, 'Flag established Chinese brands,' is a switch to allow well-known Chinese brands such as Anker, TP-Link, and DJI, while 'Mark recognized brands too' is a switch to add a checkmark to products from existing brands. Brands that the user has added to their allow list will always pass through, and brands that have been added to their block list will always be filtered out.
Knockoff is a Chrome extension that supports Amazon Marketplaces in various countries, including Amazon.com and Amazon.co.jp. According to manifest.json, supported URLs include numerous Amazon domains in countries such as the United States, Canada, the United Kingdom, Germany, France, Italy, Spain, Japan, Singapore, and Australia.
On the other hand, the developers have also acknowledged Knockoff's limitations. For example, because the brand name detection is optimized for English, the accuracy may decrease for local brands outside of English-speaking regions, and listings with non-Latin characters such as Japanese or Arabic are skipped to avoid misidentification. Furthermore, a method that obtains the seller's location for detection has been deliberately not adopted.
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in Software, Posted by log1i_yk