How to fingerprint a guest-post network from the outside

How to fingerprint a guest-post network from the outside

Word is three big affiliate brands are all feeding from the same 'editorial' network — and the footprint is sitting in plain sight. Guest-post networks resold to multiple clients leave matching DNA across their donor sites.

What ties them together:
— Same author bylines reused across 'independent' sites (search the author name in quotes)
— Identical footer or 'Write for us' boilerplate (grep a distinctive sentence in Google)
— Same CMS theme, same Cloudflare ASN clusters, posts published in tight time windows
— Outbound link patterns: these sites link the SAME 8-10 client brands and nobody else

Run two competitors' referring domains through a diff. The overlap IS the network. Multiple profiles overlapping by 40+ shared low-quality domains aren't a coincidence — they bought the same package. Once you see the connective tissue, you can't unsee it. Watch this space.