Different sites.
The same fingerprints?
Look for shared technical IDs in our index. Two independent signals are needed for a link.
Reading index coverage...
The misses matter.
Zero false links means little if we miss the networks.
What counts as a connection?
A link requires two independent rare technical families and a combined rarity score of at least 12. An ads.txt owner declaration is one family. Analytics and DIRECT seller accounts together form another. A certificate is a third.
A lone qualifying family is a lead. Common accounts are ignored with their index counts. Nameservers, shared hosting, themes, text, favicons and asset hosts are context only.
One registrable domain with many subdomains is one site, never a cross-domain discovery. Public publisher brand lists supply evaluation labels only and never enter matching.
New addresses get a public-only read capped at five seconds. Robots refusals, missing pages and incomplete captures stay visible. The comparison covers this index, not the whole web. Technical links suggest investigation and do not prove ownership or malicious intent.