Identify the three destinations
A spreadsheet or directory collects leads. A marketplace listing describes an item offered by a seller. An agent link wraps a source for another service. These layers can have different titles, currencies and selected options. Record the source URL as well as the agent URL so you can compare them.
Check identity in a fixed order
First inspect the destination domain. Then compare the source item identifier where visible. Next compare product name, main image and available options. Finally select the intended variant and check the displayed price. A redirected URL is not automatically wrong, but an unexplained item change is a reason to stop.
When a link fails
Reopen the original source from your own saved record. Search within the actual source site if it offers that function. Do not assume a similarly named listing is the same seller or item. Link-conversion tools exist, including an open-source Jadeship extension, but tool support is not evidence that an individual conversion is correct.
Source: Jadeship extension project · accessed 2026-09-13
A real directory example
PickFound category URLs used by this site include a category query parameter. Our check found that removing it could produce a page-not-found body with HTTP 200. That is why both the response and visible content matter. We retain the complete category destinations rather than simplifying their query strings.
Source: PickFound category directory · accessed 2026-09-13
Questions before you go
Does HTTP 200 mean the item exists?
No. A server may return 200 for a page-not-found message, a login screen or a generic homepage. Read the destination body.
Should I install a converter to use this guide?
No. This guide requires no extension. If you use a tool independently, inspect its permissions and verify the resulting source and variant.