When a customer asks ChatGPT, Perplexity, or Google AI Overviews for a plumber near them, the answer usually does not come from a plumber’s website. It comes from their Google Business Profile.
That is not a guess. It is what the data shows. AI search engines treat your Google Business Profile as the canonical source of truth about your business: your name, your hours, your address, your reviews, your photos, the categories you picked when you claimed the listing. Your website is a supporting document. Your Google Business Profile is the file cabinet.
Most local businesses have spent years tuning their websites for Google's traditional ten blue links. AI search engines are wired differently. They are citation engines. They want structured facts they can quote, not pages they have to crawl. A Google Business Profile is structured facts. A website is usually not.
The shift from page-rank to entity-rank
For twenty years, the local search playbook was about ranking your website higher. Build backlinks. Write service pages. Add schema markup. That playbook is not wrong, but it is no longer enough. AI search engines want to answer the user’s question with a citation, and the citation they reach for is almost always a structured data source.
A Google Business Profile is exactly that. Every field you fill in becomes a fact an AI can quote. Your business hours, your phone number, your service area, your categories — they are all machine readable. A website is usually none of those things. Most websites bury the same information in long pages full of marketing prose that an AI has to summarize and probably get wrong.
What an AI engine actually reads
I ran a small experiment in May. I asked ChatGPT, Perplexity, Claude, and Google AI Overviews the same question: “Who is the best HVAC company in Bartlett, Illinois?” Across all four engines, the cited sources were:
- The Google Business Profile of each HVAC company (every single time)
- The company’s reviews, summarized
- The company’s website, only when the GBP data was thin
When the GBP data was rich and accurate, the website was barely cited. When the GBP data was sparse or wrong, the engine hedged or cited a directory instead. In no case did a website outrank its own GBP.
The three things to fix this week
- Fill in every field in your profile. Hours, services, attributes, special hours, opening date. If a field exists, fill it. Empty fields are the AI's blind spots.
- Add fresh photos every month. AI engines weight recency. A profile with photos from 2022 reads as abandoned.
- Respond to every review, positive or negative. The response is part of the indexed record. AI engines quote responses as part of the review summary.
That is the work. Not 5,000-word pillar pages. Not a backlink campaign. The work is keeping a Google Business Profile that an AI would be comfortable citing.
The deeper point
A Google Business Profile is a free, structured, machine-readable summary of your business. Your website is an unstructured argument for why someone should hire you. AI search engines cite the structured thing. The website still matters — for trust, for depth, for the click-through — but it is no longer the front door. The profile is.
If you have been ignoring your Google Business Profile because your website gets you leads, that worked in 2018. It does not work in 2026. The profile is the new homepage.
Sources
The analysis above draws on:
- Google’s structured data documentation for local businesses
- Google’s blog on AI Overviews
- Whitespark’s 2026 local search statistics
Sources
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