IDX control test — if a third-party aggregation site controls the overall display, the listing fails the test and IDX's built-in consent disappears
Created 2026-06-21
Summary
Claim. IDX display is subject to a "control" test. If a third-party aggregation site controls the overall display, the listing fails the control test and IDX's built-in consent disappears — separate listing-agent permission would be required.
Source. NAR / BayEast / CAR IDX FAQ, accessed 2026-06-21.
Confidence. Verified for the principle.
Caveats. "Control" is fact-specific — what counts as third-party control varies; close cases need counsel.
Implication / use. Decisive guard for any aggregator/portal-style product on IDX feeds. The default IDX consent does NOT carry to a third-party-controlled aggregation context.
Related entries
Referenced by (2)
- research-notes Research notes (capture-layer): inside the MLS box — what an Ontario member agent's account exposes, what goes unused, and what they're licensed to do with it (June 2026) relates-to
- reference IDX (Internet Data Exchange) — NAR-governed reciprocity *policy* (not a feed), active listings + pending/sold per local option, public display no login relates-to