What a checked link does—and does not—prove

The index separates source observation, technical reachability and commercial judgement. Only the first two can be tested mechanically.

1. Observe the source record

An offline sync reads FansSheets category and detail pages at low concurrency. It stores only fields present on the source: title, raw price, image, category, detail URL, QC flag when evidenced, and exact product-specific agent anchors.

2. Validate the record

The validator rejects missing titles and images, duplicate identities, placeholder content, guessed hosts, broken category relations and any CNFans purchasing link. A failed sync keeps the previous known-good dataset.

3. Allocate deterministically

Each source identity is assigned reproducibly so this domain does not mirror every sibling catalogue. Public pages never reshuffle per request. The implementation details stay internal because they do not help a visitor judge a product.

4. Check external reachability

Where a link is tested, the report distinguishes a direct response, valid redirect, blocked check, timeout and error. Blocked or untested does not become verified. Even a successful response is not evidence of product quality, authenticity, seller conduct or delivery.

QC language

QC means inspection of visible details in available images. It is not authentication and cannot establish internal materials, provenance or platform performance.