The scale trap
It's tempting to hire the biggest name you can find — more staff, more years in business, a bigger client roster surely means a better result. It doesn't hold up.
When you actually score agencies on what predicts a good outcome for a new client (search and AI visibility, proof, offer clarity, business scale, depth in your specific trade), scale is consistently the smallest gap between the agencies that perform and the ones that don't. A two-person shop that does the fundamentals right regularly outperforms a firm ten times its size that doesn't.
The fundamentals cost nothing but discipline. That's good news if you're picking a smaller partner, and a warning if you're about to pay a premium for size alone.
Check #1 — Does the homepage name you, or itself?
Read the first sentence on the agency's own homepage. Does it name who they serve and what changes for that buyer — or does it describe the agency?
'Full-service digital marketing solutions' tells you nothing. A page that opens by naming your kind of business and the outcome you actually track (jobs booked, calls answered, a full schedule) is a page written by someone who has actually thought about your business, not a copy-paste of every competitor's homepage.
Check #2 — Will they show you a real number, attached to a real name?
Vague results are the loudest tell in this industry: 'doubled our leads,' 'massive growth,' with no client named, no timeframe given, and no way to check it.
Ask for one specific result, tied to one named client, with a stated timeframe. If they can't produce it, or hedge with 'we can't share client details,' that's a legitimate constraint sometimes — but it should never be the only proof they offer.
Check #3 — Is there a real price anywhere on the site?
Published pricing is rarer than it should be, and it correlates with quality more than almost anything else we found. An agency confident in its offer will tell you roughly what it costs before you book a call. One that makes you 'request a quote' for a number they already know is optimizing for a sales conversation, not for your time.
Check #4 — What happens if it doesn't work, or you want to leave?
Look for a stated guarantee and a stated exit. Who owns the domain and the code — you, or them? Is there a contract term, or can you leave with reasonable notice?
The absence of any risk reversal is the single most common gap between agencies that treat you as a long-term relationship and ones treating you as a signed contract. If none of it is written down, assume the worst version is true.
Check #5 — Do they understand AI search, or just SEO?
Traditional SEO, ranking in Google's list of blue links, still matters, but it's no longer the whole game. Increasingly, people ask ChatGPT, Gemini or Google's AI answers who to call, and those tools answer by citing sources: structured, specific, comparison-style content that directly answers the question being asked.
Ask directly: 'how do you structure content so AI answer engines cite us?' A confident, specific answer is a good sign. A blank stare, or an answer that's just a repackaged SEO pitch, tells you they haven't caught up yet — and neither will your visibility.
Check #6 — Do they own one thing, or list everything?
Breadth signals availability. Depth signals expertise. An agency that lists thirteen services with no particular strength in any of them is optimizing to look available to everyone, not effective for anyone.
Look for real depth somewhere — a named methodology, a specific industry focus, a founder who publishes their thinking. It doesn't have to match your exact trade, but it should exist.
The takeaway
None of these six checks require inside information. They're all visible on the agency's own homepage, in five minutes, before you ever get on a call. If a prospective agency doesn't pass most of them, that tells you plenty about what your own site will look like once they've built it.
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