Knowledge Base
In-depth comparisons, sourcing strategies, and product research guides — written for UK eBay resellers who want to buy smarter and sell faster.
Complete fee breakdowns by marketplace — every category rate, payment processing, and worked examples for UK, Europe, and USA sellers.
You don't need to pay £40/month to research eBay products. Here are the free methods that actually work — plus a free Chrome extension that does it automatically.
Clothing is eBay's most competitive category. Here's how to research it properly — what brands, sizes, and conditions actually sell, and what doesn't.
The research method that tells you if a charity shop find is worth buying before you hand over the cash. Works in under 60 seconds.
New to eBay selling? Here's how to research products properly before you buy — the same data Privy shows you automatically in 60 seconds.
Where to find completed listings, what the colours mean, and how to turn sold vs unsold data into a confident sourcing decision.
How to find products where demand outpaces supply — the competition ratio formula, a worked example, and the mistakes most sellers make.
An honest breakdown of eBay's own research tool — the data it shows, the workflow it requires, and the gaps that leave sellers guessing.
Why active listings mislead you, the 5-step sold-data method, median vs average, three pricing strategies, and when to reprice vs relist.
The listings-per-sale ratio, five red-flag signals, and three moves when a niche is oversaturated — before you're stuck with dead stock.
Plain-English breakdown of eBay's Final Value Fee, payment processing, and listing fees — with a worked example showing exactly what lands in your account.
STR benchmarks for eBay resellers: 70%+ is strong, 40–70% is healthy, under 20% is a pass — with the formula, a worked example, and what to do next.
A 5-step process that tells you whether a product will sell before you buy it — STR, competition, and profit calculation with a real worked example.
The complete manual research process — completed listings, sell-through rate, competition, and profit calculation — before you spend a penny.
An independent look at both tools — pricing, features, and which one actually helps UK resellers make money on eBay.
The Privy Chrome extension shows sell through rate, profit margin, and a buy/pass verdict on every eBay listing you browse — automatically.
Install Privy Free20 free lookups • 7-day trial • No card required