How to find an SMM provider
If a panel you use is a reseller, the panel it buys from usually sells the same services for less. You can often find it from evidence that the catalogs leave behind.
1. Look for identical unusual names
Generic names such as "Instagram Likes" appear everywhere and prove nothing. Long, specific names with server numbers, limits and speeds, repeated word for word, are different: hundreds of them shared by two panels is strong evidence of a common source.
2. Check the price ratio
For the shared services, divide one panel's price by the other's. A reseller usually applies one factor to everything, so the ratios cluster tightly around one value, such as 1.30. The cheaper side is the more likely source. Ratios scattered at random suggest two panels that merely sell similar things.
3. Watch price changes
When a provider changes a price, its resellers' prices for the same service change soon after, in the same direction. Over weeks this is the clearest signal of who follows whom.
4. Beware of siblings
Two resellers of the same provider look related to each other too: the cheaper one can look like the source of the other. Check whether a third panel matches both at a lower price; if so, that panel is the more likely provider of both.
Doing it with this site
The catalog analyzer takes a services page or a CSV and lists the indexed catalogs that repeat it, with the price ratio. A panel's page shows its probable upstream providers, and Providers lists the panels most often resold. Each is an inference with a confidence.