A local business can rank first in Google Maps for someone searching from their parking lot and not appear at all for someone searching six blocks away. That is not a theoretical edge case. It is the default behavior of local search, and most business owners have no idea it is happening.
To learn more about building local authority with scan data, visit How to Read a Geogrid and Build a Local SEO Action Plan. Turn 10 GBP Scans Into a Publishable Industry Report and Plan a Client Content Calendar With Funnel Mapping cover adjacent steps in detail.
A local ranking heatmap, also called a geogrid, makes this visible. It plots a grid of points around a business location, runs a local search query from each point, and records where the business ranks at each location. The result is a visual map of where the business is winning and where it has disappeared entirely. Those invisible zones are dead zones, and they are where ranking work needs to happen.
This article explains how to run a geogrid, what the output tells you, and how F! Insights automates the process through the Near Me Visibility tool in the Client Workspace.
In This Article
- How a Ranking Heatmap Works
- Setting Up Your First Geogrid
- Reading the Output
- What Dead Zones Actually Tell You
- What Causes Dead Zones
- How to Fix the Most Common Dead Zone Causes
- How Long Fixes Take to Work
- Turning the Results Into an Action Plan
- How F! Insights Runs Geogrids
- Frequently Asked Questions
How a Ranking Heatmap Works
A geogrid tool divides an area around a business into a grid of equally spaced coordinate points. For each point, it simulates a local search query from that exact location and records the business’s ranking position in the local results. The ranking at each point is color-coded and displayed on a map overlay.
Standard color coding used in geogrid ranking heatmaps.
| Grid Color | What It Means |
|---|---|
| Green (rank 1-3) | Business appears in the Map Pack from this location |
| Yellow (rank 4-10) | Business appears in local results but below the Map Pack |
| Red (rank 11+) | Business does not appear in visible local results from this location |
| Gray (no data) | No ranking data returned; usually means no GBP presence detected |
Setting Up Your First Geogrid
- Choose a keyword that represents the client’s primary service and how their customers actually search for it. “HVAC repair Columbus” is correct. “HVAC company” is too broad.
- Set the grid center to the business’s GBP address. This is the point from which all other grid points are calculated.
- Set the grid size. A 5×5 grid (25 points) gives a broad overview. A 7×7 grid (49 points) gives finer resolution. Start with 5×5 for a first scan.
- Set the grid radius. 0.5 miles between points works for dense urban markets. 1 to 2 miles is better for suburban and rural markets.
- Run the scan. F! Insights processes each grid point and returns a color-coded map with ranking data.
Run a free GBP scan on the business first to get overall GBP health data before running the geogrid. The two outputs together give you a complete picture of where the business stands.
Reading the Output
A healthy local ranking heatmap shows a green core centered on the business address with a gradual fade to yellow at the edges. A problematic map shows red zones close to the business address, meaning the business is invisible to searchers who are geographically near but not directly outside the front door.
Pay attention to three patterns specifically:
- Asymmetric dead zones. Red on the north side, green on the south side. This usually means a competitor is dominating from a location north of the client.
- Close-range dead zones. Red within half a mile of the business address. This is a profile problem, not a geographic one.
- Keyword-specific dead zones. Run the same grid for two different service keywords. If the dead zones differ, the profile is not optimized for one of the services even though it is listed.
What Dead Zones Actually Tell You
Dead zone patterns and what each one indicates about the underlying issue.
| Dead Zone Pattern | Most Likely Cause | Priority Action |
|---|---|---|
| Red everywhere beyond 0.5 miles | Profile completeness below 60%; few reviews | Full GBP profile audit before any other action |
| Red on one side only | Strong competitor dominating from that direction | Competitor gap analysis; citation and review push |
| Red for one keyword, green for another | Missing service category or keyword in profile | Add service category; update description and services |
| Yellow everywhere, never green | Profile complete but not authoritative | Review velocity campaign; GBP post cadence |
What Causes Dead Zones
Common causes of local search dead zones and how difficult each is to fix.
| Cause | How Common | Difficulty to Fix |
|---|---|---|
| Incomplete GBP profile (missing categories, services, description) | Very common | Low: 1-3 hours |
| Low review count compared to competitors in the area | Common | Medium: 60-90 day campaign |
| Inconsistent business name, address, phone across directories | Common | Medium: 3-6 hours to audit and correct |
| Missing or wrong secondary service categories | Common | Low: 30 minutes |
| No GBP post activity in 30+ days | Common | Low: start a post cadence |
| Strong competitor with 3x your review count in a specific zone | Common | Medium-High: long-term authority build |
How to Fix the Most Common Dead Zone Causes
- Incomplete profile. Log into your Google Business Profile. Go through every section: categories, services, description, photos, hours, attributes. Fill out everything that applies. Add your primary service keyword naturally to the business description in the first sentence.
- Low review count. Start asking every customer for a review immediately after the service. Send a direct link to your GBP review page. The gap between your review count and the competitor dominating your dead zones is the primary thing you are trying to close.
- Inconsistent NAP. Search your business name in Google to find every directory listing that mentions you. Check each one: is the name, address, and phone number exactly the same as what is in your GBP profile? Fix every variation.
- No GBP post activity. Start posting. Three times per week, with your service keyword and city in the first sentence, for 60 days. That alone can reduce dead zones in markets where competitors are not posting either.
How Long Fixes Take to Work
Expected timeline for ranking movement after each type of dead zone fix.
| Fix Type | Time to See Ranking Movement |
|---|---|
| Profile completeness update | 2-4 weeks for Google to re-index |
| Adding missing service categories | 2-4 weeks |
| GBP post cadence (freshness signal) | 6-10 weeks of consistent posting |
| Review count improvement | 8-12 weeks depending on velocity |
| NAP consistency fixes | 8-16 weeks for citation re-indexing |
| New citation building | 12-20 weeks to full effect |
Turning the Results Into an Action Plan
F! Insights generates a 5-pillar action plan from geogrid results automatically. The five pillars are GBP alignment, content strategy, attribute optimization, citation building, and NAP consistency. Each pillar includes specific tasks ranked by estimated ranking impact.
For how to read the action plan output and prioritize the work, see How to Read a Geogrid Result and Build an Action Plan.
How F! Insights Runs Geogrids
F! Insights includes the Near Me Visibility tool in the Client Workspace under the Map Pack sub-tab. You set the keyword, grid size, and radius. F! Insights runs the grid using the Google Places API and returns a color-coded heatmap with ranking data at each point. Claude then generates the 5-pillar action plan from the results.
The geogrid can be run on any business in your client roster, or on a prospect before you close them. Showing a prospect their own dead zone map in a sales meeting is one of the fastest ways to create urgency without saying anything. The data speaks for itself.
Related reading: After running the heatmap, the next step is reading the geogrid output and building a prioritized action plan. For how to configure the scan parameters correctly, see how grid density and radius settings change what the scan shows. For the business-owner version of what dead zones mean, see why local businesses disappear from the Google Map Pack. For a full comparison of the best local SEO geogrid tools compared, see that roundup.
Frequently Asked Questions
- How often should I run a geogrid for an active client?
- Once per month is the standard cadence for tracking ranking progress. Run an additional geogrid any time you make a significant change to the GBP profile. The before-and-after comparison is your proof of progress.
- Does running a geogrid affect the client’s GBP profile?
- No. A geogrid is a read-only query. It retrieves ranking data from the Google Places API but does not write anything to the client’s profile.
- Can I run a geogrid on a competitor’s business?
- Yes. You can run a geogrid on any business that has a GBP listing by using their address as the grid center. Running a geogrid on the dominant competitor in a dead zone is a standard diagnostic step for understanding why your client is not ranking in that area.
- My business ranks first right outside my door. Why am I not ranking a mile away?
- Proximity is only one of Google’s three local ranking factors. Your first-place ranking close to your location means Google trusts your profile there. The drop-off further out means a competitor’s prominence score is strong enough to override your distance advantage in those zones. Review count, post cadence, and citation authority are the signals that extend your ranking envelope outward.
- If I fix my GBP profile, will the dead zones disappear?
- A complete profile fix reduces dead zones caused by completeness and category gaps. It will not fully eliminate dead zones where a competitor has significantly more reviews and citation authority. Dead zone elimination usually requires fixing all five pillars over 90 to 120 days, not a single profile update.
- Is a geogrid the same thing as a local ranking heatmap?
- Yes. A geogrid and a local ranking heatmap refer to the same tool and the same output. The tool plots a grid of coordinate points around a business, runs a local search from each point, and maps the ranking results as a color-coded overlay. The terms are used interchangeably in local SEO, though “geogrid” is more common among practitioners and “ranking heatmap” is more common in agency client reports.
- How do dead zones affect a business’s actual revenue?
- A dead zone means the business does not appear in Google Maps for searchers in that geographic area, even if those searchers are closer to the business than the competitor that does rank. For high-intent searches like “electrician near me” or “restaurant open now,” not ranking in the Map Pack typically means not getting considered at all. Most searchers never scroll past the top three results. Even a modest dead zone covering two or three city blocks around a busy street can represent a significant portion of the accessible customer base.
- How long does it take for dead zones to shrink after implementing fixes?
- Profile completeness and category fixes typically show ranking movement within two to four weeks. Review velocity improvements take six to twelve weeks to produce measurable dead zone reduction, depending on how many reviews are added and how quickly. Citation and NAP consistency fixes take the longest, eight to sixteen weeks for the citation network to re-index. Run a follow-up geogrid scan four weeks after each round of fixes to measure actual movement.