Real EstateData Management3MediumConsumer
Redfin displays inconsistent Days on Market (DOM) data that contradicts MLS data, undermining trust in listing recency.
The user is not aware of any existing tool that reliably syncs or verifies DOM data across platforms, and Redfin's behavior suggests a data lag or discrepancy without explanation.
37
0
Opp. Score
37
Severity
3Medium
Willingness to Pay
none
Added
Oct 28, 2026
App Concept
ListingData Watchdog
Browser extension that compares listing data (DOM, price, status) across Redfin, Zillow, and MLS, flagging discrepancies and providing alerts when data changes unexpectedly. It gives users confidence in the accuracy of property listings.
Key Features
- Real-time DOM comparison across Redfin, Zillow, and linked MLS
- Alert notifications when DOM resets or changes
- Historical timeline of listing changes (e.g., price, status, photos)
- Bookmarklet to pull MLS data directly from listing
Target Users: Home buyers, sellers, and real estate enthusiasts who browse listings on multiple platforms and want accurate, up-to-date information
Revenue Model: One-time purchase or subscription ($5/mo) for premium advanced alerts and history
Part of App Idea
Redfin displays inconsistent Days on Market (DOM) data that contradicts MLS data, undermining trust in listing recency.Want to go deeper?
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