Other rank trackers make you choose a location to scan from, usually a zip or postal code, and will choose one spot to scan from within that area. Since a map ranking scan result can be different with even a small amount of distance, it is normal that this difference would sometimes appear.
That's not to say that there won't be any anomalies. The Google API can return some funky data sometimes. If you see anything that doesn't make sense, please let us know.
Categorized in: Frequently Asked Questions