Geo-grid: the sampling design that estimates the local rank surface.
A geo-grid is a regular lattice of geographic coordinates overlaid around a business, from which a rank tracker queries Google and records local pack positions per node. Methodologically, it is the sampling design used to estimate the local rank surface. The full method is documented under geo-grid rank tracking.
Definition
Because local results are ordered partly by distance, a business's position is a function of the searcher's coordinates — a rank surface. A geo-grid is the design that estimates that surface: each coordinate becomes a measurement point, the tracker queries Google as if standing there, and the recorded positions, rendered as a colour-coded coverage map, display the surface's shape.
Measurement notes
Grid design is research design. Size sets resolution (3×3 to 13×13 is common); span sets the domain; cadence converts snapshots into a comparable time series. The first law of grid methodology: hold the design constant. Moving the grid or changing cadence mid-campaign breaks comparability and quietly invalidates attribution. These trade-offs are detailed in how local rank tracking works.
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Related terms
Rank tracking · Local SEO · Google Business Profile
FAQ
What is a geo-grid?
A lattice of geographic points around a business from which rankings are sampled, used to map how local pack and Maps visibility varies across a service area.
Cite this entry
Geo-Grid Observatory. "Geo-grid." Geo-Grid Observatory Glossary, https://geo-grid-observatory.pages.dev/ (accessed 2026).