Website cookie reference

Each entry explains what a cookie is for, who sets it, how long it usually lasts and what its value looks like, checked against the vendor's own documentation. Where TagPipes has seen the cookie in the wild, the entry also shows how often.

Those figures come from 41,162 public websites TagPipes scanned between August 11, 2026 and September 13, 2026, loading up to three pages per site in a real browser. Websites of TagPipes customers are excluded, no individual site is named, and cookie values are never read or stored.