Aggregator pollution

Data aggregators (Foursquare Pinpoint, Neustar Localeze, Data Axle) collect business data once, then distribute it to dozens of downstream directories — Yelp, Apple Maps, Healthgrades, DexKnows, and 20+ others. When a single entry gets corrupted at the aggregator source, the bad data cascades downstream automatically over 4-12 weeks.

A business might have correct NAP on Google Business Profile and Yelp. But if the aggregator record has a typo — a wrong phone number, a suite number missing, an old address — that error feeds systematically into secondary directories. The operator fixes it on Google, only to see the wrong number reappear on Healthgrades two weeks later because the aggregator sent a refresh.

Bad data enters aggregators through several mechanisms:

• Historical data: aggregators inherited records from old defunct directories years ago and never cleaned them
• Operator mistakes: someone at the aggregator data entry desk typoed a phone number and it went live to thousands of copies
• Conflicting submissions: multiple versions of the same business get merged incorrectly (two locations confused, or a franchise and a single location conflated)
• Stale updates: a business changed phone numbers but the old version in the aggregator never got marked as inactive
• Feed conflicts: when an aggregator pulls from multiple sources (some saying 555-1234, others saying 555-9999), it picks the wrong one

One corrupted aggregator record can contaminate 10-40 downstream directories within weeks. The contamination is visible in citation audit reports — you see the same wrong phone number appearing on Yelp, Apple Maps, Merchant Circle, and industry-specific directories simultaneously.

The real cost isn't the audit finding — it's the time to fix. Correcting the aggregator entry is relatively quick (15-30 minutes), but the wait for re-propagation is brutal. Most aggregators refresh feeds quarterly or semi-annually. A fix submitted in January might not propagate until April. During that window, your NAP consistency score tanks and remains tanked until downstream directories get the corrected feed.

Fixing aggregator pollution is a two-phase process. First, submit a correction to the aggregator itself — Foursquare Pinpoint, Neustar Localeze, Data Axle. Most aggregators have a business verification or correction form on their website. Expect 1-4 week SLAs before the correction is applied.

Second, monitor the downstream directories with a weekly audit via the Citation Audit API. Once the aggregator correction propagates (typically 4-12 weeks), the bad data will fall away from secondary directories automatically as their feeds update. If a directory still shows the old data after 16 weeks, contact the directory directly or use a listing management service to push the corrected data through their specific intake process.