{
  "guide": "set-up-cross-domain-measurement",
  "checked": "2026-11-11",
  "location": "Admin > Data collection and modification > Data streams > Web > stream > Configure tag settings > Configure your domains",
  "requirement": "same tag ID (same G- ID) from the same web data stream on every domain",
  "max_conditions": 100,
  "worked_example": {
    "domains": 2,
    "conditions_used": 2,
    "conditions_unused": 98,
    "recomputed": "100 - 2 = 98"
  },
  "conditions_logic": "OR",
  "mechanism": {
    "parameter": "_gl",
    "carries": "cookie IDs across domains",
    "example_url": "https://www.example.com/?_gl=1*abcde5*"
  },
  "without_setup": {
    "users": 2,
    "sessions": 2
  },
  "with_setup": {
    "users": 1,
    "sessions": 1
  },
  "sessions_saved_per_crossing_visitor": 1,
  "sessions_saved_recomputed": "2 - 1 = 1",
  "role_required": "Editor or above on the Analytics account",
  "side_effect": "outbound click events are ignored for links to listed domains"
}